[Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.1"] [White "Petrosyan, Manuel"] [Black "Sanal, Vahap"] [Result "1/2-1/2"] [ECO "D37"] [WhiteElo "2625"] [BlackElo "2546"] [Annotator "TA"] [PlyCount "118"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,118,20,31,12,23,0,12,6,20,14,0,-12,0,0,14,3,18,2,29,4,14,14,6,0,0,0, 16,0,13,18,31,11,9,0,0,0,0,0,0,0,7,0,29,14,27,28,20,14,18,36,23,0,0,0,0,0,6,0, 0,-42,-33,-41,0,0,0,0,47,25,86,86,86,86,86,86,86,86,86,86,86,86,86,76,75,86,91, 0,8,8,8,8,8,8,16,16,17,20,17,17,17,17,17,17,17,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 b6 7. a3 {D37: Queen's Gambit Declined: 5 Bf4.} c5 8. dxc5 bxc5 9. Bd3 {[#]} Bb7 $146 ({Predecessor:} 9... Nbd7 10. O-O Nb6 11. cxd5 exd5 12. Qc2 h6 13. b4 c4 14. Bf5 Bxf5 15. Qxf5 a5 {0-1 (41) Halvax,G (2432)-Hera,I (2598) Austria 2019}) 10. O-O Nbd7 11. h3 Qb6 12. cxd5 exd5 13. Na4 Qd8 14. Rc1 a5 15. Qe2 c4 16. Bc2 Nc5 17. Rfd1 Nxa4 18. Bxa4 Qb6 19. Be5 Ne4 20. Bc2 Nc5 21. Nd4 {aiming for Qh5.} g6 22. Qg4 Bf6 ({But not} 22... Qxb2 $2 23. Nc6 $1 $18 {[%mdl 512]}) 23. Bxf6 Qxf6 24. Rb1 Rab8 25. b4 axb4 26. Rxb4 Ra8 27. Qg3 Bc8 28. Rb5 Ne6 29. a4 {[%CAl Ba3a4,Ba4a5][%mdl 32]} Nxd4 30. Rxd4 Be6 31. Qd6 Rfd8 32. Qb4 Rdc8 33. a5 Qd8 34. Qc3 Qd7 35. Rb6 Qa7 36. Bxg6 $1 fxg6 37. Rxe6 Qxa5 38. Qc2 Kf7 39. Rd6 Qa1+ (39... Qa2 $1 $11 { keeps the balance.} 40. Qxa2 Rxa2 41. R6xd5 c3 42. Rd7+ Kg8 43. Rd8+ Rxd8 44. Rxd8+ Kf7) 40. Rd1 $1 $16 {[%CAl Rd1a1]} Ra2 41. Rxa1 Rxc2 {[%mdl 4096] Endgame KRR-KRR} 42. Ra7+ $1 Kg8 {[#]} 43. Rdd7 $1 h5 44. Rg7+ (44. Rxd5 $6 c3 $11) 44... Kh8 {[#]} 45. Rh7+ $1 (45. Rxg6 $6 c3 $11) 45... Kg8 46. Rag7+ Kf8 47. Rxg6 c3 48. g3 ({Much worse is} 48. Rxh5 $6 Rc1+ 49. Kh2 Kf7 $11) ({ White should try} 48. f4 $16) 48... Rc5 {The position is equal.} 49. Ra6 { White threatens Ra8+ and mate.} Kg8 50. Rd7 {White wants to mate with Ra8+.} Rc8 51. Raa7 Rb2 52. Rg7+ Kf8 53. Rh7 {[%CAl Rh7h8]} Kg8 54. Rhc7 Rxc7 55. Rxc7 c2 {Strongly threatening ...Rb1+.} 56. Kg2 Kf8 57. g4 h4 58. g5 Kg8 59. Kf3 Ra2 {Weighted Error Value: White=0.06/Black=0.06} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.2"] [White "Shevchenko, Kirill"] [Black "Indjic, Aleksandar"] [Result "1/2-1/2"] [ECO "C42"] [WhiteElo "2605"] [BlackElo "2607"] [Annotator "TA"] [PlyCount "72"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,72,37,41,16,18,13,31,19,50,10,15,15,22,18,13,16,12,-9,0,-5,-10,-14, -14,-12,10,31,32,17,11,0,2,0,0,0,0,-8,-6,-8,-8,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Nc3 Nf6 6. d4 Be7 7. h3 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} O-O 8. Bd3 Nbd7 9. O-O {White is slightly better.} b6 10. d5 a6 11. a4 Bb7 12. Re1 Re8 13. Bc4 Bf8 {[#]} 14. Bg5 $146 ({Predecessor:} 14. Be3 Ne5 15. Bf1 g6 16. Bg5 h6 17. Bh4 Bg7 18. Nxe5 dxe5 19. Bc4 Qd7 20. Bg3 {1/2-1/2 (26) Puranik,A (2550) -Harika,D (2492) Biel 2019}) 14... h6 15. Bh4 Rxe1+ 16. Qxe1 g5 17. Bg3 b5 ( 17... Bg7 {seems wilder.} 18. Nd4 Nh5 19. Nf5 Qf6 20. Nxg7 Kxg7 21. Bh2 Ne5) 18. axb5 axb5 19. Rxa8 Bxa8 {The position is equal.} 20. Bxb5 Nxd5 21. Nxd5 Bxd5 22. Nd4 Nf6 23. c4 Bb7 {White should prevent ...Qa8.} 24. Bc6 Bxc6 25. Nxc6 Qa8 26. Ne7+ Kg7 27. Nf5+ Kg6 28. Ne7+ Bxe7 29. Qxe7 Qc6 30. b3 Qb6 31. b4 Qxb4 32. Qxc7 Ne4 33. Kh2 Qc5 34. Qe7 Nxg3 ({Wrong is} 34... Nxf2 $2 35. Qe2 $18 (35. Qxd6+ Qxd6 36. Bxd6 Ne4 $11)) 35. fxg3 h5 36. Qf8 Qxc4 {Weighted Error Value: White=0.05/Black=0.03} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.3"] [White "Kourkoulos-Arditis, Stamatis"] [Black "Fedoseev, Vladimir"] [Result "0-1"] [ECO "D12"] [WhiteElo "2485"] [BlackElo "2696"] [Annotator "TA"] [PlyCount "82"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,82,23,29,9,22,24,29,35,43,7,3,16,6,0,0,3,25,15,24,10,24,16,21,17,27, 31,43,0,0,-9,-10,-4,-18,-138,-134,-141,-146,-133,-100,-97,-86,-83,-90,-95,-94, -94,-97,-95,-95,-93,-105,-122,-97,-98,-60,-137,-137,-154,-140,-186,-183,-187, -194,-194,-212,-830,-830,-830,-830,-910,-910,-895,-895]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3 e6 6. Nh4 Bg6 7. Be2 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} Nbd7 8. O-O Be7 9. g3 {White has an edge.} a6 10. Bd2 {[#]} dxc4 $146 ({Predecessor:} 10... O-O 11. Nxg6 hxg6 12. cxd5 exd5 13. Qb3 Qb6 14. Qxb6 Nxb6 15. f3 Rfe8 16. Bd3 c5 {1/2-1/2 (67) Kovalyov,A (2613)-Cori,J (2549) Montevideo 2015}) 11. Nxg6 hxg6 12. Bxc4 c5 13. Be2 O-O 14. Bf3 Rb8 15. Rc1 e5 16. Ne2 b5 17. dxc5 Bxc5 18. Nc3 Qe7 19. Qb3 Rfd8 20. Rfd1 e4 21. Bg2 Bb6 22. Ne2 (22. Be1 $11) 22... Nc5 $36 {[%mdl 2048] Black has strong initiative.} 23. Qa3 Rd3 24. b3 a5 25. Nd4 ({Don't blunder} 25. Bxa5 $2 {[#]} Ra8 $1 $19) 25... b4 26. Qb2 {[#] White wants to play Nc6.} Rxd4 {[%mdl 64] Decoy} 27. Qxd4 {[#]} (27. exd4 Nd3) 27... Nxb3 $1 {[%mdl 64] Double Attack} 28. Qc4 Nxc1 29. Bxc1 Bc7 30. Bb2 Be5 31. Bxe5 Qxe5 32. Rd4 {[%CAl Rg2e4]} Re8 33. Qc6 (33. h3 $15) 33... Qf5 {Hoping for ...Rc8.} 34. h3 Rc8 35. Qd6 a4 {[%CAl Ba5a4,Ba4a3,Ba3a2] [%mdl 32] ...b3 is the strong threat.} 36. g4 Rc1+ 37. Rd1 Qc8 38. g5 $2 {[#]} (38. Bf1 Rxd1 39. Qxd1) 38... b3 $1 $19 {Black is clearly winning.} 39. axb3 { [#]} a3 $1 40. Qd2 (40. Bf1 Rxd1) 40... Rxd1+ {[%mdl 64] Overworked Piece} 41. Qxd1 {[#]} a2 $1 {Weighted Error Value: White=0.36/Black=0.04} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.4"] [White "Kovalenko, Igor"] [Black "Bjerre, Jonas Buhl"] [Result "1-0"] [ECO "D38"] [WhiteElo "2643"] [BlackElo "2542"] [Annotator "TA"] [PlyCount "185"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,185,25,15,19,15,18,18,8,0,0,0,0,-20,-18,-24,-15,-12,-6,-12,-6,-23,0, -18,24,20,17,19,14,18,10,16,9,9,35,21,34,33,35,39,112,100,85,27,26,18,18,18,18, 18,21,10,27,18,22,22,16,11,15,12,16,0,0,0,0,0,0,0,0,0,0,0,4,4,10,3,5,4,7,4,9,0, 0,0,0,0,0,0,0,0,0,0,0,0,8,8,8,8,8,11,10,5,8,5,6,0,8,11,14,12,12,6,12,11,29,25, 20,22,39,0,17,10,10,12,15,10,10,6,7,0,8,8,15,16,40,8,8,8,27,0,8,0,0,3,13,8,8,7, 0,1,8,0,29,0,9,8,16,17,16,16,16,16,541,466,29968,29969,29970,29969,29977,29969, 29966,29966,29982,29983,29984,29985]} 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 Bb4 5. cxd5 exd5 6. Bg5 h6 7. Bh4 O-O {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4).} 8. e3 Bf5 9. Be2 $1 {[%mdl 4] is more profitable than 9. Qb3 at the moment.} Nbd7 {The position is equal.} 10. O-O c6 11. Qb3 Qb6 {[#]} 12. Bg3 $146 ({Predecessor:} 12. a3 Bd6 13. Nd2 Qxb3 14. Nxb3 Ne4 15. Nxe4 Bxe4 16. Bg3 Bxg3 17. hxg3 Nf6 18. Rfc1 {1-0 (26) Debashis,D (2501)-De Waele,W (2190) Chess.com INT 2021}) 12... Be7 13. Nd2 Rfe8 14. Rfc1 Qxb3 15. Nxb3 { Black should prevent Na5.} a5 16. a4 Ne4 17. Bc7 Bd8 18. Bxd8 Rexd8 19. Nxe4 Bxe4 20. Bg4 Nf6 21. h3 Ra6 22. Ra3 Rb6 23. Nxa5 Rxb2 24. Rb3 Rxb3 25. Nxb3 Ne8 ({Better is} 25... Ra8 $14) 26. a5 Ra8 27. Be2 (27. Nc5 $16) 27... Bf5 $11 28. Kf1 Kf8 29. Ke1 Ke7 30. Kd2 Nd6 31. Kc3 Kd8 32. Kb4 Kc7 33. g4 Be6 34. Nc5 b6 35. axb6+ Kxb6 36. Kb3 Ne4 37. Na4+ Kc7 38. f3 Rb8+ 39. Kc2 Ra8 40. Kb3 Rb8+ 41. Ka3 Nd6 42. Nc5 Ra8+ 43. Kb2 Nb7 44. Na6+ Kd6 45. Rc3 Bc8 46. h4 Nd8 47. Nb4 Rb8 48. Rb3 Ne6 49. Kc3 c5 50. dxc5+ Nxc5 51. Ra3 Bd7 {[#] ...Na4+ is the strong threat.} 52. Nc2 Na4+ (52... g6 {seems wilder.} 53. Nd4 Rb1 54. Ra5 Rc1+ 55. Kb4 Rb1+) 53. Kd2 Rb2 54. Kc1 Rb8 55. Nd4 g6 56. Bd1 Nc5 57. Ra7 (57. Bc2 { with more complications.} Ne6 58. Ne2 d4 59. Nxd4 Nxd4 60. Rd3) 57... Ne6 { With the idea ...Nxd4.} 58. Ne2 Rc8+ 59. Kd2 Rc7 60. Ra6+ Rc6 61. Ra1 Ke7 62. Bb3 Rd6 63. Ra5 Bc6 64. Kd3 Bb7 65. Kd2 Kf6 66. Ng3 Kg7 67. Rb5 Bc6 68. Rb6 { And now Ne2 would win.} Nc5 69. Bd1 Nd7 70. Ra6 Ne5 71. Kc3 Re6 {[#] Hoping for ...Nxf3!} 72. Kd4 Nc4 73. Nf1 Bb5 74. Ra1 Ne5 75. Ng3 Bc4 76. h5 Nc6+ 77. Kc5 Ne7 78. hxg6 fxg6 79. Ra3 Rc6+ 80. Kd4 Kf6 81. e4 Ke6 82. Ba4 Rc7 83. f4 dxe4 84. Rc3 Nd5 85. Rxc4 Rxc4+ 86. Kxc4 {Strongly threatening Bd7+!} Nb6+ $2 { [%mdl 8192] This move loses the game for Black.} (86... Nxf4 $11 {and Black stays safe.} 87. Kd4 (87. Nxe4 h5 $11) 87... h5) 87. Kb5 $18 Nxa4 (87... Nd7 $18 88. Bb3+ Ke7 89. Nxe4 Nf8) 88. Kxa4 {KN-K3P. White mates.} h5 89. Kb3 Kd5 90. Kc3 hxg4 91. Kd2 g5 92. fxg5 Ke5 93. Ke3 {Weighted Error Value: White=0.04/ Black=0.04} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.5"] [White "Ter-Sahakyan, Samvel"] [Black "Aleksandrov, Aleksej"] [Result "1/2-1/2"] [ECO "B29"] [WhiteElo "2644"] [BlackElo "2529"] [Annotator "TA"] [PlyCount "103"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,87,47,40,39,44,39,51,56,27,38,30,45,32,44,50,55,55,55,42,43,56,46,39, 53,47,56,50,33,58,60,22,56,20,66,66,69,65,65,49,60,49,58,69,71,49,92,92,113, 113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113, 113,113,113,113,113,113,166,166,166,166,166,111]} 1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Ne4 Nc6 6. c4 f5 {B29: Sicilian: 2 Nf3 Nf6 (Nimzowitsch Variation) .} 7. cxd5 {Nc3 is the strong threat.} fxe4 8. dxc6 exf3 {White is slightly better.} 9. Qxf3 dxc6 {[#]} 10. b3 $146 ({Predecessor:} 10. Bd3 Qd5 11. Qh5+ Kd8 12. Qe2 Qxg2 13. Be4 Qh3 14. d4 cxd4 15. Bg5+ Kc7 16. O-O-O {0-1 (44) Wagner,D (2581)-Nadimifar,A (2210) Chess.com INT 2021}) 10... Qd4 11. Qc3 a5 12. Bb2 Qe4+ 13. Qe3 Qxe3+ 14. dxe3 a4 15. O-O-O Be7 16. f4 h5 17. g3 Kf7 18. h3 b5 19. Bg2 Ra6 20. Be4 a3 21. Bc3 b4 22. Be1 c4 23. bxc4 c5 24. Rh2 Ra7 25. Bc2 Rd7 26. Rxd7 Bxd7 27. Rd2 Bc6 28. e4 Rd8 29. Rxd8 Bxd8 $16 {[%mdl 4096] Endgame KBB-KBB} 30. Bf2 Be7 31. Kd2 g6 32. Ke2 Bb7 33. Kf3 Ba6 {[#]} 34. Bb3 Bb7 35. Ke3 Bf8 36. Kd3 Bc6 37. Bc2 Be7 38. Bd1 Bf8 39. g4 hxg4 40. hxg4 ({ Wrong is} 40. Bxg4 $2 b3 $19) 40... Bd7 41. Bc2 g5 {[#]} (41... Be7 $16 { was necessary.} 42. Ke2 Kg8) 42. f5 $1 $18 {White is clearly better.} ({ Don't take} 42. fxg5 $6 Kg6 $14) 42... Kg7 43. Be3 Kh6 44. Bc1 {Weighted Error Value: White=0.04/Black=0.07} (44. Ke2 $18) 44... Be7 45. f6 Bf8 46. Bxa3 bxa3 47. Kc3 Kg6 48. Kb3 Kf7 49. Kxa3 Bc6 50. Bd1 Ke8 51. Ba4 Kd7 52. Bxc6+ 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.6"] [White "Erenberg, Ariel"] [Black "Hovhannisyan, Robert"] [Result "0-1"] [ECO "D52"] [WhiteElo "2494"] [BlackElo "2632"] [Annotator "TA"] [PlyCount "112"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 23,112,14,33,0,11,0,0,-15,0,0,0,0,0,0,0,0,5,-9,-9,-14,-12,-4,0,0,0,0,0, 0,0,0,0,0,0,0,6,0,0,0,0,0,-2,-36,-30,-28,-37,-40,-39,-58,-24,-70,-69,-92,-77, -160,-160,-166,-166,-168,-168,-168,-168,-160,-160,-160,-143,-455,-416,-774, -519,-1331,-944,-785,-1109,-1114,-1129,-923,-722,-587,-524,-2127,-2843,-2448, -2280,-2177,-2106,-1745,-1830,-2344,-1966,-29970,-440]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 Nbd7 6. e3 Qa5 7. Nd2 dxc4 8. Bxf6 Nxf6 9. Nxc4 Qc7 10. Be2 Be7 11. Rc1 O-O 12. O-O Rd8 13. Qb3 {D52: Queen's Gambit Declined: Cambridge Springs Variation.} Bd7 14. Bf3 Rac8 $5 {[%mdl 4] An interesting side line.} 15. h3 {The position is equal.} Be8 16. Rfd1 {[#]} c5 $146 ({ Predecessor:} 16... Qb8 17. Na5 b6 18. Nc4 b5 19. Nd2 c5 20. dxc5 Rxc5 21. Nde4 Nxe4 22. Nxe4 Rxc1 23. Rxc1 {1/2-1/2 (28) Dimitrov,R (2448)-Delchev,A (2585) Plovdiv 2017}) 17. dxc5 (17. Bxb7 $2 Rb8 $19) 17... Qxc5 18. Rxd8 ({Not} 18. Qxb7 $2 Rc7 $19) 18... Bxd8 19. Ne2 Rb8 $1 20. Rd1 (20. Bxb7 $2 Qe7 $19) 20... Bc7 21. Qa3 Qxa3 22. Nxa3 Kf8 23. Rc1 Bd8 24. Nd4 Ke7 25. Nc4 Bc7 26. b4 Bd7 27. Nb3 b6 28. Nd4 Bd6 29. Nxd6 Kxd6 30. Nc6 Rc8 {[%CAl Rd7c6]} 31. Rd1+ Nd5 32. Nxa7 (32. Bxd5 $5 exd5 33. Nd4 $11) 32... Rc7 {aiming for ...Ke5.} 33. e4 { [%mdl 64] Pin} Rxa7 34. exd5 $11 {[%mdl 4096] Endgame KRB-KRB} e5 35. Rd2 Bb5 { [%mdl 1024] Black has compensation.} 36. Rc2 f5 37. g4 e4 38. Bg2 ({Better is} 38. Be2 Bxe2 39. Rxe2) 38... g6 $17 ({Don't play} 38... Kxd5 39. gxf5 Ke5 40. Rc3 $15) 39. Rc8 Kxd5 ({But not} 39... Rxa2 40. gxf5 gxf5 41. Rf8 $17) 40. gxf5 gxf5 41. Rb8 f4 42. Rxb6 Bd3 {Hoping for ...f3.} 43. h4 Rxa2 44. Rf6 $2 { [%mdl 8192] Now White is beyond hope.} (44. Rb7 $17 {is a better chance.}) 44... Ke5 $19 45. Rf8 (45. Rf7 $142 e3 46. fxe3 fxe3 47. Bf3) 45... e3 46. Re8+ {[#]} (46. fxe3 $142 fxe3 47. Bf3) 46... Kd4 $1 47. fxe3+ fxe3 48. Bf3 Rf2 49. Bh5 Rf5 50. Bg4 Rf4 51. Bh5 Be4 52. Rd8+ Kc3 53. Re8 Kd2 {( -> ...e2)} 54. Rd8+ Bd3 55. b5 Rxh4 56. Bf3 e2 {Weighted Error Value: White=0.63/Black=0.02} (56... Rf4 $142 57. Kg2 {[#]} Rxf3 $1 {[%mdl 576] Remove Defender, Promotion} 58. Kxf3 e2 59. Re8 Bxb5 60. Re6 e1=Q 61. Rxe1 Kxe1 62. Kg2 Be2 63. Kg3 h5 64. Kh4 Kf2 65. Kh3 Bf3 66. Kh4 Kg2 67. Kg5 Kg3 68. Kh6 h4 69. Kg7 h3 70. Kf6 h2 71. Kg6 h1=Q 72. Kf6 Qe1 73. Kf7 Qe5 74. Kf8 Qf6+ 75. Kg8 Qe7 76. Kh8 Qf8+ 77. Kh7 Be4# ) 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.7"] [White "Nihal Sarin"] [Black "Iskandarov, Misratdin"] [Result "1-0"] [ECO "A05"] [WhiteElo "2620"] [BlackElo "2535"] [Annotator "TA"] [PlyCount "163"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,163,25,23,30,7,21,34,37,44,55,37,40,27,37,35,68,23,54,52,71,75,88,64, 63,67,70,65,75,78,92,98,93,60,60,52,68,73,64,69,93,86,120,112,102,115,119,112, 143,151,141,106,151,145,148,135,171,181,163,185,191,177,179,181,186,179,233, 227,225,224,256,134,120,108,120,53,53,37,183,164,164,164,164,111,117,110,112, 115,153,152,335,327,594,578,560,172,167,169,156,72,71,0,154,162,153,152,227,72, 152,145,198,135,122,122,137,137,320,303,198,198,410,212,406,387,355,198,831, 830,1510,1452,1259,1220,1360,1079,29979,29980,29979,29980,29981,29975,29982, 29975,29988,29989,29992,29983,29984,29985,29985,35,29986,29987]} 1. Nf3 Nf6 2. c4 g6 3. b3 Bg7 4. Bb2 O-O 5. g3 d5 6. Bg2 c6 7. O-O a5 8. Nc3 $1 {[%mdl 4] is more profitable than 8.d3 at the moment.} Ne4 {A11: English Opening: 1...c6.} 9. Na4 Bxb2 10. Nxb2 Na6 {White is slightly better.} 11. d3 Nf6 12. cxd5 {[#]} cxd5 $146 ({Predecessor:} 12... Nxd5 13. Qd2 Bg4 14. Nc4 Bxf3 15. Bxf3 Nc5 16. d4 Ne6 17. e3 a4 18. b4 Nb6 19. Nxb6 Qxb6 {1/2-1/2 (72) Anton Guijarro,D (2650) -Vidit,S (2689) Doha 2016}) 13. Qd2 Bd7 14. Rfc1 Qb6 15. Na4 Qd6 16. Qxa5 Nb4 17. Qc7 Bxa4 18. Qxd6 exd6 19. bxa4 Rxa4 20. Rab1 Re8 21. a3 Na6 22. Rxb7 Nc5 ( 22... Rxe2 $2 23. Ng5) 23. Rb2 (23. Rb6 Rxe2 24. Rxd6 Ncd7 25. Bh3 Ra7 26. Nd4) 23... Rxa3 24. Nd4 Ra4 25. Nb5 Rb8 26. Rbb1 Ra2 27. Bf3 ({Reject} 27. Nxd6 $6 Rxb1 28. Rxb1 Rxe2 $11) 27... Ne6 28. Nxd6 Rd8 29. Nb5 g5 30. Kf1 g4 31. Bg2 Kg7 32. Nc3 Ra3 33. Nd1 d4 34. Nb2 Rb8 {intending ...Rab3.} 35. Nc4 {[%mdl 64] Discovered Attack} Rxb1 36. Rxb1 Ra2 37. h3 h5 38. hxg4 hxg4 39. Bb7 Nc5 (39... Ng8 $142 40. Bd5 Nh6) 40. Nd6 $18 Kg6 41. Bc8 Rc2 42. Nb5 (42. Bf5+ $18 Kg5 43. Rb4) 42... Nce4 $16 43. dxe4 Rxc8 {[%mdl 4096] Endgame KRN-KRN} 44. e5 (44. f3 $1 $16) 44... Ne4 $14 {White must now prevent ...Nd2+.} 45. Rb4 {Strongly threatening Nd6.} Rc1+ ({Better is} 45... Rb8 $14) 46. Kg2 $18 Kf5 47. Nxd4+ Kxe5 48. f3 (48. f4+ $18 Kf6 49. Nb3) 48... Nc3 $16 49. fxg4 Kd5 50. e3 Ra1 51. Rb7 Ke4 $2 (51... f6 $16 {is a better defense.} 52. Rf7 Ke5) 52. Rxf7 Ra2+ $2 ( 52... Nd5 53. Nf5 Ra8 54. Nd6+ Kxe3) 53. Kh3 $18 Kxe3 54. Rf4 (54. Nf5+ Kd3 55. g5) 54... Ne4 55. Nf5+ Kd3 56. Rf1 (56. Rf3+ $142 Kc4 57. Re3) 56... Ke2 $16 57. Rf4 (57. Rb1 $142) 57... Kd3 58. Rf3+ Kc4 {Threatens to win with ...Ng5+.} 59. Rf1 Ra8 (59... Ra7 $16 60. Rb1 Ra2) 60. Rb1 $2 (60. Ng7 $18 {is more deadly.}) 60... Kd5 ({Black should try} 60... Nf2+ 61. Kh4 Rh8+ 62. Kg5 Rg8+ 63. Kf4 Nxg4) 61. Rb5+ Ke6 (61... Kc4 $16 {was necessary.} 62. Rb7 Ra4) 62. Nd4+ (62. Rb6+ $1 $18 Ke5 63. Ng7) 62... Kf6 63. Nf3 Nf2+ 64. Kh4 Ra4 $2 (64... Rh8+ $16 65. Rh5 Re8 66. Rf5+ Kg7 67. Rg5+ Kf6) 65. Rf5+ $18 Kg7 {[#]} 66. Ne5 $1 Ne4 $2 (66... Re4 67. Kg5 (67. Rxf2 Rxe5 68. Rf1 Kg6 $14) 67... Re3) 67. Rf7+ Kg8 $2 (67... Kh8 68. g5 Nd6+ 69. Rf4 Ra3) 68. Rf4 Nc5 69. g5 Ra5 $2 ( 69... Kg7 70. Kh5 Re4) 70. Nc6 Ra6 71. Ne7+ Kg7 72. Kh5 Nd7 73. Nf5+ Kh7 74. Re4 Nf8 75. Re7+ Kg8 76. Rg7+ Kh8 77. Rf7 Ne6 78. g6 Ra1 79. g7+ Kh7 80. g8=Q+ {[%mdl 64] Deflection, Decoy} Kxg8 {[#]} 81. Nh6+ $1 Kh8 82. Kg6 {[%csl Gg6] [%CAl Rf7h7] Weighted Error Value: White=0.21/Black=0.24} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.8"] [White "Bernadskiy, Vitaliy"] [Black "Sadikhov, Ulvi"] [Result "1/2-1/2"] [ECO "A45"] [WhiteElo "2599"] [BlackElo "2490"] [Annotator "TA"] [PlyCount "104"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,104,32,47,44,41,60,61,75,79,79,79,89,61,76,60,56,22,20,0,0,0,0,0,0, -21,-12,-5,-6,-50,-34,-53,-27,-44,-18,-33,-25,-10,0,-10,-10,-10,-10,-9,-7,-20, -22,-24,-21,-76,-7,-6,-8,-9,-9,-9,-9,-15,-15,-16,-16,-16,-16,-21,-14,-107,-93, -81,-80,-107,-8,-8,0,0,0,-8,-8,-8,-8,-8,0,0,0,-7,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. g3 c5 3. d5 g6 4. Bg2 Bg7 5. e4 d6 6. Ne2 O-O 7. a4 Na6 8. O-O {[#]} e6 $146 {B06: Modern Defence.} ({Predecessor:} 8... Rb8 9. h3 Nc7 10. Re1 b6 11. Nd2 Ba6 12. Nc3 e6 13. dxe6 fxe6 14. Nf3 d5 15. exd5 exd5 16. Ne5 {1-0 (42) Epishin,V (2543)-Solomon,K (2426) Padova 2011}) 9. dxe6 Bxe6 10. Nf4 Bg4 { White is slightly better.} 11. f3 Bc8 12. Nc3 Nb4 13. Be3 Re8 14. Nb5 Bf8 15. Qd2 {Black should prevent Rad1.} d5 16. c3 Nc6 17. Nxd5 Nxd5 18. exd5 Na5 19. Qf2 {Black must now prevent d6.} a6 20. Na3 Qxd5 21. f4 Qf5 22. Nc2 Be6 23. b4 {[#]} Bb3 $1 24. bxa5 Bxc2 25. Bxb7 Be4 26. Bxe4 Rxe4 27. Qf3 Rae8 28. Bf2 c4 29. Rad1 Qxa5 30. f5 Qxa4 31. Bd4 {[#]} (31. fxg6 $11 hxg6 32. Bd4) 31... Qc6 ( 31... g5 $1 $17) 32. fxg6 $11 Qxg6 33. Rb1 Bg7 34. Bxg7 Kxg7 35. Rb7 {[%CAl Rb7f7]} R8e7 36. Rxe7 Rxe7 {[%mdl 4096] Endgame KQR-KQR} 37. Qd5 Qb6+ 38. Kg2 Re2+ 39. Kh1 {[#]} (39. Kh3 $11 {remains equal.} Qh6+ 40. Kg4 Qg6+ 41. Kh3) 39... Qe6 $1 $17 {[%CAl Re6d5]} 40. Qg5+ Qg6 41. Qxg6+ hxg6 {KR-KR} (41... Kxg6 $17 42. Ra1 Rc2 43. Rxa6+ f6) 42. Rf4 $11 {The position is equal.} a5 {aiming for ...a4.} (42... Ra2 {keeps more tension.} 43. Rxc4 Kf6 44. Rc7 a5 45. Ra7 a4 ) 43. Rxc4 Ra2 44. Rc7 a4 {Threatens to win with ...a3.} 45. Ra7 Kf6 46. Ra5 $1 Ke6 {Hoping for ...f5.} 47. h4 a3 48. c4 Kd6 {Strongly threatening ...f5.} 49. g4 Rc2 {...a2 is the strong threat.} 50. Rxa3 Rxc4 51. Rg3 Ke5 52. Kg2 f5 { Weighted Error Value: White=0.11/Black=0.09} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.9"] [White "Diermair, Andreas"] [Black "Safarli, Eltaj"] [Result "0-1"] [ECO "A49"] [WhiteElo "2455"] [BlackElo "2598"] [Annotator "TA"] [PlyCount "82"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,82,24,22,40,48,28,32,45,27,27,21,77,80,76,68,72,13,22,11,22,2,17,-24, -33,-143,-100,-141,-141,-143,-141,-131,-113,-110,-118,-111,-111,-178,-200,-209, -186,-219,-215,-216,-202,-247,-243,-249,-250,-238,-210,-256,-255,-275,-267, -293,-282,-316,-235,-453,-437,-583,-432,-402,-404,-29991,-29992,-29996,-29997] } 1. d4 {Bulletin} Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d5 6. c4 dxc4 7. Na3 a5 8. Nxc4 Be6 9. b3 a4 {D77: Fianchetto Grünfeld: 6 0-0: Replies other than 6...c6.} 10. Ng5 Bd5 11. e4 Bc6 {[#] White is slightly better.} 12. Bb2 $146 ({Predecessor:} 12. Re1 axb3 13. Bb2 bxa2 14. d5 Bb5 15. Qb3 Bxc4 16. Qxc4 h6 17. Nh3 Nbd7 18. Rxa2 {1-0 (48) Timoscenko,G (2530)-Gutman,L Ashkhabad 1978 MCL [Bulletin]}) 12... h6 {[#]} 13. d5 $1 Bb5 (13... hxg5 $11 14. dxc6 Nxc6) 14. Nh3 $16 c6 15. Re1 axb3 16. Qxb3 (16. axb3 $16 Rxa1 17. Qxa1) 16... Na6 17. dxc6 bxc6 18. Red1 Qb8 19. Ba3 Qa7 20. Rdc1 {Black converts the advantage convincingly.} (20. e5 $15 Ng4 21. Rac1) 20... Nd7 21. Rab1 ({Avoid the trap} 21. Bxe7 $2 Rfe8 $19) 21... Nac5 22. Bxc5 Nxc5 23. Qe3 Bxc4 24. Rxc4 Qxa2 25. Rcc1 Nd7 $36 {[%mdl 2048] White is under strong pressure.} 26. Rb7 {[#]} (26. Qb3 $17) 26... Ra3 $1 $19 27. Qf4 (27. Qe1 Ne5) 27... Ne5 {White must now prevent ...g5.} 28. Rd1 Qe2 29. Qc1 Ra2 {And now ...Nd3 would win.} 30. Qb1 { [#]} Rfa8 $1 31. Re1 Qd2 32. Rd1 Qc3 33. Rc1 Qa3 34. Rb3 Qd6 35. Kh1 Ng4 { aiming for ...Rd2.} 36. Rd3 Qe6 37. Qb6 $2 (37. Qb7) 37... Rb2 38. Qc7 Nxf2+ 39. Nxf2 Rxf2 40. Rxc6 {[#]} (40. Rd8+ $19 Rxd8 41. Qxd8+ Kh7 42. Rg1) 40... Qxc6 $1 {[%mdl 576] Back Rank} 41. Qxc6 (41. Kg1 Qxc7) 41... Ra1+ {Weighted Error Value: White=0.54/Black=0.13} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.10"] [White "Bharath Subramaniyam H"] [Black "Postny, Evgeny"] [Result "1/2-1/2"] [ECO "C55"] [WhiteElo "2437"] [BlackElo "2583"] [Annotator "TA"] [PlyCount "53"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,53,41,41,29,29,26,44,43,43,37,58,48,66,40,43,49,41,19,19,18,40,19,39, 3,0,0,2,0,-4,-6,28,28,22,5,20,0,0,0,20,0,9,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O d6 6. a4 O-O 7. Re1 Be6 8. Bxe6 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} fxe6 9. c3 Qd7 {9...Qd7 has become a bit dusty these days.} 10. b4 {[%CAl Bb2b4,Bb4b5][%mdl 32] White is slightly better.} a6 11. Nbd2 Rfe8 {[#]} 12. Bb2 $146 ({Predecessor:} 12. Qb3 Bf8 13. Nc4 h6 14. Bd2 Nh5 15. d4 exd4 16. Nxd4 Nd8 17. Qd1 Qf7 18. Qe2 Nf4 19. Bxf4 Qxf4 20. Rad1 g6 21. g3 Qf7 {1/2-1/2 (21) Mrdja,M (2400)-Velikov,P (2467) Sofia 2006}) 12... Bf8 13. b5 Na5 14. c4 b6 15. Bc3 Nb7 16. Nb3 Qf7 17. Qe2 Nd7 18. d4 exd4 19. Nfxd4 a5 20. Nc6 e5 21. Qd3 Nbc5 22. Nxc5 Nxc5 23. Qd5 { The position is equal.} Rac8 24. Na7 Ra8 25. Nc6 Rac8 26. Na7 Rcd8 27. Nc6 { Weighted Error Value: White=0.10/Black=0.07} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.11"] [White "Asadli, Vugar"] [Black "Makhnev, Denis"] [Result "0-1"] [ECO "B12"] [WhiteElo "2572"] [BlackElo "2480"] [Annotator "TA"] [PlyCount "84"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,84,-2,-47,-31,-21,-2,-54,-42,-70,0,0,0,-283,86,92,87,35,42,29,18,12, 12,0,22,-19,0,0,0,0,0,0,0,0,0,0,-3,-9,-3,-3,-6,-22,-40,-33,-32,-47,-35,-128, -128,-128,-128,-129,-127,-175,-143,-144,-145,-164,-165,-269,-266,-272,-265, -265,-268,-1104,-362,-519,-400,-1748,-1729]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. h4 h5 8. Nf4 Bh7 9. Nxh5 Nc6 $1 {B12: Caro-Kann: Advance Variation.} 10. dxc5 Bxc5 11. Bg5 {is now more promising than 11.Bb5.} ({Better is} 11. Bb5 $11) 11... Qb6 $1 $15 {[#] Black is slightly better.} 12. Bb5 $146 ({Predecessor:} 12. Nxg7+ Kf8 13. Nxe6+ fxe6 14. Qf3+ Ke8 15. O-O-O Nge7 16. Qf6 Kd7 17. Rxd5+ exd5 18. e6+ {1/2-1/2 (43) Iljiushenok,I (2540) -Esipenko,A (2624) Skolkovo 2019}) 12... d4 (12... Bxf2+ $15 13. Kf1 Bd4) 13. Qf3 $11 dxc3 14. Bxc6+ {[%mdl 8192]} (14. Nxg7+ $11 {and White stays safe.} Kf8 15. Nxe6+ Ke8 16. Ng7+ Kf8 17. Ne6+ Ke8 18. Bxc6+ bxc6 19. Nxc5 cxb2 20. Rb1 Qxc5 {[%mdl 64] Double Attack} 21. O-O) 14... Kf8 $2 {[#]} (14... Qxc6 $19 15. Qxc6+ bxc6 16. bxc3 Kf8) 15. b4 $1 $16 Qxb4 {[#]} (15... Qxc6 16. Qxc6) 16. Nf4 $1 Qc4 $14 {[#]} 17. Bb5 Qe4+ 18. Qxe4 Bxe4 19. Rh3 Nh6 20. Ke2 a6 21. Ba4 Nxg4 22. f3 Bf5 23. fxg4 Bxg4+ {[%mdl 64] Double Attack} 24. Rf3 {Strongly threatening Ng6+.} Bxf3+ 25. Kxf3 Be7 26. Rd1 Bxg5 27. hxg5 {Hoping for g6.} g6 28. Rd7 b5 29. Bb3 Rh1 30. Ne2 Rf1+ 31. Kg4 ({White should play} 31. Ke3 $15) 31... a5 $1 $17 32. a4 bxa4 33. Bxa4 Rc8 34. Rd4 Rc5 35. Ng3 Re1 36. Ne4 Rxe5 37. Nf6 {[#]} (37. Bc6 $142) 37... Kg7 $1 $19 38. Ne8+ {[#]} Kh8 $1 39. Rd8 { Threatening mate with Nf6+.} Rg1+ 40. Kf4 $2 (40. Kf3 Rexg5 41. Nd6+ Kg7 42. Rd7) 40... Rexg5 $2 (40... Rf5+ 41. Ke3 Re1+ 42. Kd4 Rd1+ 43. Kxc3 Rxd8) 41. Kf3 (41. Nd6+ $142 Kg7 42. Bc6) 41... Rf5+ 42. Ke3 (42. Ke2 $142 Rg2+ 43. Ke3 Rg3+ 44. Ke2) 42... Re1+ {Weighted Error Value: White=0.80/Black=0.30} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.12"] [White "Fier, Alexandr"] [Black "Pranav Vijay"] [Result "1/2-1/2"] [ECO "C78"] [WhiteElo "2569"] [BlackElo "2366"] [Annotator "TA"] [PlyCount "51"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,51,46,8,10,8,20,0,13,0,45,36,36,40,41,48,47,52,40,11,21,17,17,13,34, 0,18,27,26,14,37,31,64,41,57,14,20,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. c3 d6 8. d4 Bb6 9. Be3 O-O {C78: Ruy Lopez: Archangelsk and Möller Defences.} 10. Nbd2 h6 11. h3 Bb7 12. Bc2 Re8 13. d5 Ne7 14. Bxb6 cxb6 15. Re1 Ng6 16. g3 Bc8 17. Kh2 Bd7 18. Bd3 Qc8 {[#]} 19. Bf1 $146 ({Predecessor:} 19. Ng1 Rd8 20. Nf1 Nh7 21. Qh5 Nf6 22. Qe2 Qc5 23. Ne3 Ne7 24. h4 Qc8 25. Rac1 {1/2-1/2 (86) Bruns,P (1922)-Dauner,K (1948) Birkenfeld 2013}) 19... Nh7 20. c4 b4 21. a3 bxa3 22. Rxa3 Qc5 23. Qe2 f5 24. Rea1 Nf6 25. Bg2 Ne7 26. Qe3 {Weighted Error Value: White=0.12/Black=0.09} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.13"] [White "Lazov, Toni"] [Black "Erigaisi Arjun"] [Result "0-1"] [ECO "C47"] [WhiteElo "2412"] [BlackElo "2567"] [Annotator "TA"] [PlyCount "58"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,58,2,-22,-6,-18,-13,-21,28,17,53,1,58,52,48,41,50,-62,-64,-116,-77, -42,-57,-112,-126,-156,-158,-153,-150,-158,-150,-227,-143,-136,-150,-155,-130, -143,-140,-443,-447,-412,-439,-431,-448,-486,-489,-483,-483,-471,-443]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. g3 Bc5 5. Bg2 d6 6. h3 a6 {C47: Scotch Four Knights and Four Knights with 4 g3.} 7. O-O h6 8. d3 g5 $5 {[%mdl 4] The position is equal. A promising side line.} 9. Nd2 Be6 10. Kh2 {[#]} ({Better is } 10. Nd5 $14) 10... d5 $146 (10... g4 $11) ({Predecessor:} 10... Ba7 11. Nb3 d5 12. exd5 Nxd5 13. Ne4 Qe7 14. c4 Nf6 15. Nxf6+ Qxf6 16. Bxc6+ bxc6 {1/2-1/2 (64) Uribe Arteaga,D (2265)-Becerra,J (2292) Cartagena 2019}) 11. exd5 $14 Nxd5 12. Nde4 Be7 13. f4 $2 (13. Na4 $14) 13... exf4 $15 14. Nxd5 (14. gxf4 $15 Nxf4 15. Bxf4 gxf4 16. Ne2) 14... fxg3+ (14... Bxd5 {with more complications.} 15. Qe1 fxg3+ 16. Nxg3 Bxg2 17. Kxg2 Qd5+) 15. Nxg3 Bxd5 16. Qh5 {[#]} (16. Bd2 $15 ) 16... Bd6 $1 $17 {White must now prevent ...Bxg3+.} 17. Bxd5 {[%csl Gd5,Gf1] [%CAl Rh5f7]} (17. Re1+ Kf8) 17... Bxg3+ 18. Kxg3 {[%csl Gd5,Gf1][%CAl Rh5f7]} Qxd5 19. Bd2 O-O-O {Threatens to win with ...Nd4.} 20. Qxf7 (20. Bc3 $17 Rhe8 21. Qf3) 20... Qe5+ 21. Kg2 Qxb2 22. Qb3 Qxb3 23. axb3 {[#]} Nd4 $1 24. Bc3 $2 {[%mdl 8192] This costs White the game.} (24. Ra2 $17 {is tougher.}) 24... Nxc2 $19 {[%mdl 64] Discovered Attack} 25. Bxh8 Rxh8 26. Rac1 {Black is clearly winning.} Ne3+ {[%mdl 64] Double Attack} 27. Kg3 Nxf1+ 28. Rxf1 Rd8 29. Rf3 Rd4 {Weighted Error Value: White=0.44/Black=0.16} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.14"] [White "Suleymanli, Aydin"] [Black "Ozenir, Ekin Baris"] [Result "1/2-1/2"] [ECO "A40"] [WhiteElo "2560"] [BlackElo "2309"] [Annotator "TA"] [PlyCount "77"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,77,14,11,19,49,44,94,48,48,56,48,48,51,50,45,32,29,43,46,28,49,0,0, -17,0,-42,-20,-20,-20,-20,-20,-20,-20,-22,-20,-102,-26,-55,-6,-108,-114,-110, -70,-108,-99,-122,-138,-125,-74,-124,-51,-44,-44,-93,-95,-95,-93,-121,-127, -154,-154,-150,-122,-122,-122,-156,-163,-166,-189,-163]} 1. d4 e6 2. Nf3 Nf6 3. Bf4 c5 4. e3 b6 5. c4 Bb7 6. d5 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7 .} d6 7. Nc3 a6 {[#]} 8. Qa4+ $146 {White is better.} ({Predecessor:} 8. Be2 h6 9. h3 Qc7 10. dxe6 fxe6 11. Qc2 Nc6 12. Qg6+ Kd7 13. O-O-O Rd8 14. Rd2 {1-0 (56) Fernandez Vazquez,J (1822)-Norrby,T ICC INT 2009}) 8... b5 9. cxb5 Nxd5 10. bxa6+ $1 {[%mdl 64] Discovered Attack} Bc6 11. Bb5 {[%CAl Rb5c6]} Qb6 12. Nxd5 exd5 13. Bxc6+ Qxc6 14. Qxc6+ Nxc6 15. O-O-O {Strongly threatening a3.} Rxa6 16. a3 Ne7 17. Rd3 h6 18. Rb3 g5 19. Bg3 Kd7 20. Rd1 Kc6 21. e4 d4 22. h4 (22. Nd2 $11) 22... f6 (22... f5 $17 23. e5 ( 23. hxg5 hxg5 24. exf5 Nxf5 $17) 23... f4 24. exd6 Nf5 25. Bxf4 (25. Ne5+ Kd5 $17) 25... gxf4 26. Ne5+ Kd5) 23. Kb1 g4 24. Nxd4+ (24. Nd2 $11 {keeps the balance.}) 24... cxd4 $17 25. Rxd4 Kc7 26. Rc4+ Nc6 27. Rbc3 {With the idea b4. } Be7 28. b4 Rb8 ({Better is} 28... Kd7 29. Bf4 h5) 29. a4 {[#] Black must now prevent b5.} Rxa4 ({Black should play} 29... Kd7 $1 $17 30. b5 {[%mdl 64] Double Attack} Ne5 31. Bxe5 fxe5) 30. Rxc6+ $15 Kd7 31. Rc7+ Ke6 32. Kc1 Rbxb4 33. Bf4 {[#]} h5 $1 34. Kd2 Rxe4 35. Re3 d5 36. Rxe4+ Rxe4 37. Be3 Bd6 38. Rc6 {Threatens to win with Bc5.} d4 39. Bh6 {Weighted Error Value: White=0.24/ Black=0.14} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.15"] [White "Sadhwani, Raunak"] [Black "Agibileg, Uurtsaikh"] [Result "0-1"] [ECO "E66"] [WhiteElo "2555"] [BlackElo "2413"] [Annotator "TA"] [PlyCount "102"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,102,20,26,32,25,22,32,28,77,8,22,0,0,-8,129,-8,-10,-48,-49,-40,-60, -52,-33,-68,0,0,-8,-24,-38,-26,-43,-22,-6,-22,0,-38,-42,-30,-27,-27,-26,-17,0, 0,0,-110,-121,-117,-63,-67,-58,-108,-100,-100,-100,-105,-110,-172,-143,-123,0, -176,-170,-341,-328,-325,-322,-386,-386,-398,-385,-430,-430,-419,-362,-418, -407,-529,-527,-500,-500,-558,-552,-1162,-589]} 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 c5 6. Nf3 d6 7. O-O Nc6 8. d5 Na5 9. Nd2 a6 10. Qc2 b5 11. cxb5 {E66: King's Indian: Fianchetto: 6...c5 7 0-0 Nc6 8 d5.} axb5 12. Nxb5 Bf5 13. e4 {White is slightly better.} Bc8 14. Nc3 (14. a4 $16) 14... Ba6 $11 15. Re1 { [#]} Ng4 $146 ({Predecessor:} 15... Nd7 16. Nf3 Ra7 17. b3 Qb8 18. Bb2 c4 19. Reb1 cxb3 20. axb3 Nxb3 21. Ra2 Ndc5 22. Ne1 Rc8 23. Bc1 Rb7 24. Be3 Nd4 25. Rxb7 Qxb7 26. Qd2 Ncb3 {0-1 (26) Marusenko,P (2058)-Jones,G (2649) London}) 16. Nf3 Bd4 (16... Nc4 $1 $11 {keeps the balance.}) 17. Nd1 ({White has to play} 17. Nxd4 $16 cxd4 18. Na4 (18. Qd1)) 17... Nc4 $1 18. h3 Nge5 19. Nxd4 cxd4 20. f4 {[#]} Qa5 $1 21. Rf1 {[#]} Nd7 (21... Ne3 $1 $15 22. Nxe3 dxe3 23. Bxe3 (23. fxe5 e2 $17) 23... Bxf1 24. Bxf1 (24. Rxf1 Rac8 $11) 24... Rfc8) 22. Qf2 Ne3 23. Nxe3 dxe3 24. Bxe3 {And now Rfd1 would win.} Bxf1 25. Bxf1 Qb4 26. Bd4 Nc5 27. a3 (27. Bc3 $5 {[%CAl Rc3b4]} Qxe4 28. Re1 Qxd5 29. Bg2 $11) 27... Qb3 28. Re1 Ra4 {...Rxd4! is the strong threat.} 29. Bxc5 dxc5 30. Re3 Qd1 31. Re1 Qb3 32. Bg2 (32. Re3 $1 $11 Qa2 33. Bb5) 32... Rb8 $17 {[%mdl 1024] Black has strong compensation.} 33. Re2 Rd4 (33... Qd1+ $17 34. Kh2 Qd4) 34. Kh2 $15 Qd3 35. f5 Rb3 36. fxg6 hxg6 37. e5 Kg7 $1 38. Re1 (38. Qe1 $17) 38... Qd2 39. Re2 Qd3 ({Black should try} 39... Qg5 $1 $17 {aiming for ...Rdd3.} 40. h4 Qf5 41. Qxf5 gxf5) 40. Rc2 $2 {[#]} (40. Re1 $1 $11 {and White is okay.}) 40... Qe3 $1 $19 41. e6 $2 (41. Re2 Qxf2 42. Rxf2) 41... Qxf2 ({Weaker is} 41... fxe6 42. Qxe3 Rxe3 43. dxe6 $17) 42. Rxf2 {[%mdl 4096] Endgame KRR-KRB} f5 43. Rc2 Kf6 44. Bf1 {[#]} Ke5 $1 45. Kg2 Kxd5 46. Kf2 Rb6 47. h4 Kxe6 48. Bc4+ {[#]} Rxc4 $1 {[%mdl 576] Deflection. Black is clearly winning.} 49. Rxc4 Rxb2+ 50. Ke1 Kd5 51. Rc3 c4 {Weighted Error Value: White=0.53/Black=0.17} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.16"] [White "Agmanov, Zhandos"] [Black "Basso, Pier Luigi"] [Result "0-1"] [ECO "C70"] [WhiteElo "2404"] [BlackElo "2550"] [Annotator "RC"] [PlyCount "92"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] [TimeControl "40/5400+30:900+30"] 1. e4 {[%emt 0:02:07]} e5 {[%emt 0:04:00]} 2. Nf3 {[%emt 0:00:06]} Nc6 { [%emt 0:00:10]} 3. Bb5 {[%emt 0:00:07]} a6 {[%emt 0:00:14]} 4. Ba4 {[%emt 0:00: 18]} Nge7 {[%emt 0:00:10]} 5. c3 {[%emt 0:02:30]} Ng6 {[%emt 0:00:26]} 6. O-O { [%emt 0:05:40]} d5 {[%emt 0:00:29]} 7. exd5 {[%emt 0:02:19]} Qxd5 {[%emt 0:00: 07]} 8. Bb3 {[%emt 0:01:34]} Qd3 {[%emt 0:00:38]} 9. Bc2 {[%emt 0:08:42]} Qd6 { [%emt 0:00:23]} 10. d4 {[%emt 0:02:45]} Be6 {[%emt 0:05:42]} 11. dxe5 {[%emt 0: 16:04]} Ngxe5 {[%emt 0:03:03]} 12. Nxe5 {[%emt 0:02:46]} Nxe5 {[%emt 0:02:20]} 13. Bf4 {[%emt 0:00:15]} Qxd1 {[%emt 0:02:44]} 14. Rxd1 {[%emt 0:00:10]} Bd6 { [%emt 0:19:50]} 15. Nd2 {[%emt 0:13:24]} O-O-O {[%emt 0:01:48]} 16. Bg3 { [%emt 0:00:15]} Nc4 {[%emt 0:04:22]} 17. Nxc4 {[%emt 0:00:36]} Bxg3 {[%emt 0: 00:25]} 18. hxg3 {[%emt 0:04:42]} Bxc4 {[%emt 0:00:12]} 19. Bb3 {[%emt 0:05:55] } Bxb3 {[%emt 0:02:16]} 20. axb3 {[%emt 0:00:05]} Rxd1+ {[%emt 0:00:07]} 21. Rxd1 {[%emt 0:00:02]} Rd8 {[%emt 0:00:55]} 22. Rxd8+ {[%emt 0:02:12]} Kxd8 { [%emt 0:00:13]} 23. Kf1 {[%emt 0:01:54]} Ke7 {[%emt 0:20:52]} 24. Ke2 {[%emt 0: 00:06]} Kf6 {[%emt 0:00:04]} 25. Kd3 {[%emt 0:02:50]} Kf5 26. Kd4 {[%emt 0:00: 30]} Kg4 27. Ke5 {[%emt 0:00:30]} h5 28. c4 {[%emt 0:00:30]} f5 29. c5 { [%emt 0:00:30]} g5 30. Ke6 {[%emt 0:00:30]} f4 31. Kd7 {[%emt 0:00:30]} c6 32. Kc7 {[%emt 0:00:30]} f3 33. gxf3+ {[%emt 0:00:30]} Kxf3 34. Kxb7 {[%emt 0:00: 30]} h4 35. gxh4 {[%emt 0:00:30]} gxh4 36. Kxc6 {[%emt 0:00:30]} h3 37. Kb7 { [%emt 0:00:30]} h2 38. c6 {[%emt 0:00:30]} h1=Q 39. c7 {[%emt 0:00:30]} Kxf2+ 40. Kb8 {[%emt 0:00:30]} Qh2 41. Kb7 {[%emt 0:15:30]} Qg2+ 42. Kb8 {[%emt 0:00: 30]} Qg3 43. Kb7 {[%emt 0:00:30]} Qf3+ 44. Kb8 {[%emt 0:00:30]} Qf4 45. Kb7 { [%emt 0:00:30]} Qe4+ 46. Kb8 {[%emt 0:00:30]} Qe5 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.17"] [White "Pichot, Alan"] [Black "Nikitenko, Mihail"] [Result "0-1"] [ECO "C18"] [WhiteElo "2630"] [BlackElo "2472"] [Annotator "TA"] [PlyCount "92"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,92,0,0,0,0,0,0,0,17,24,18,0,0,0,56,0,28,23,30,-54,68,62,48,0,0,-214, -208,-210,-212,-222,-190,-286,-300,-330,-311,-354,-340,-335,-154,-129,-22,-23, -24,-27,-33,-112,-77,-68,-65,-140,-86,-389,-368,-387,-367,-384,-367,-406,-420, -421,-412,-456,-418,-617,-606,-1295,-1256,-1091,-478,-741,-559,-664,-627, -12838,-12838,-12838,-12837]} 1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Kf8 8. h4 {is currently scoring better than 8.Bd2.} Qa5 9. Bd2 Qa4 10. h5 {C18: French: 3 Nc3 Bb4: Main line: 7 h4 and 7 Qg4.} h6 $1 11. Rh3 Nbc6 12. Qf4 {The position is equal.} b6 13. Rf3 {[%csl Gf3][%CAl Rf4f7] [#]} Nd8 14. c4 dxc4 {aiming for ...Bb7.} 15. dxc5 {[#]} b5 $146 (15... Bb7 $11 ) ({Predecessor:} 15... Bb7 16. Rg3 b5 17. Rc1 Nf5 18. Rh3 Nc6 19. Ne2 Rd8 20. Nc3 Qxa3 21. Ne4 Qa4 {1-0 (32) Videki,S (2440)-Arztmann,W (2020) Feffernitz 1997}) 16. c6 (16. Ne2 $1 $14) 16... Nexc6 17. Ne2 Qxc2 18. Bc3 (18. Nc3 $11) 18... Bd7 (18... Bb7 $15) 19. Rc1 $1 $14 {[%CAl Rc1c2]} Qa4 20. Rd1 Be8 21. Qg4 $2 (21. Ng3 $11 {and White stays safe.}) 21... Qxa3 $19 22. Rg3 Rh7 23. Nd4 Qc5 (23... Nxe5 $2 24. Qe4 $18) 24. Nxc6 (24. Nf3 $142) 24... Nxc6 (24... Bxc6 $2 25. Bd3 $18) 25. Qe4 Rh8 26. Qg4 Rg8 27. Be2 b4 (27... Nxe5 28. Qd4 $11) (27... a5 $19 28. Bd2 Ne7) 28. Bd2 $17 g5 (28... Nxe5 29. Qd4 $16) ({Don't play} 28... Qxe5 29. Bf4 $15) (28... Rd8 $17 29. Qxc4 Qxc4 30. Bxc4 Rd4) 29. hxg6 $1 $11 Rxg6 30. Bxh6+ Kg8 $1 (30... Rxh6 31. Qg7+ Ke7 32. Qg5+ f6 33. exf6+ Rxf6 34. Qxc5+ Kf7 35. Bh5+ Rg6 36. Bxg6+ Kf6 37. Qf8+ Bf7 38. Qxf7+ Ke5 39. Rg5#) 31. Qf3 ({Better is} 31. Qh4 $15 Qxe5 32. Rxg6+ fxg6 33. Bg5 Qc3+ 34. Rd2 Qa1+ 35. Rd1) 31... Qxe5 {Strongly threatening ...c3.} 32. Rxg6+ fxg6 33. Qf8+ Kh7 { And now ...g5 would win.} 34. Be3 {[%mdl 8192] This move loses the game for White.} (34. f4 $17 Qh8 35. Qxh8+ Kxh8 36. Bxc4) 34... c3 $19 ({Weaker is} 34... g5 35. Kf1 $15) 35. Rd3 {[#] White threatens Bg5! and mate.} Qg7 $1 { [%CAl Rg7f8]} 36. Qf3 Kg8 {White must now prevent ...Rb8.} 37. Bd1 Rc8 38. Qe4 Qe5 39. Qg4 Qf5 40. Qc4 (40. Qxf5 $142 exf5 41. Bf4) 40... Ne7 {Black is clearly winning.} 41. Qxb4 Qxd3 42. Qxe7 Qd7 (42... Rb8 $142 {Threatens to win with ...c2.} 43. Bh6 Qe4+ 44. Kf1 Qd4) 43. Qf6 (43. Qxd7 $142 Bxd7 44. Bc2) 43... Qf7 44. Qg5 Qf5 45. Qh6 c2 46. Bxc2 Qxc2 {Weighted Error Value: White=0. 68/Black=0.34} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.18"] [White "Markus, Robert"] [Black "Ahmadzada, Ahmad"] [Result "1/2-1/2"] [ECO "A77"] [WhiteElo "2600"] [BlackElo "2431"] [Annotator "TA"] [PlyCount "135"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 24,135,27,0,74,65,79,50,74,74,86,67,76,67,79,47,64,56,68,85,78,37,37,43, 39,36,47,41,41,31,37,28,47,37,77,66,63,47,59,50,62,52,67,44,63,36,71,71,112, 104,103,107,108,115,132,118,216,208,218,132,146,0,114,105,123,118,130,124,124, 124,124,124,218,212,222,219,307,297,1353,1389,1205,1205,1158,1072,748,681,606, 23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. Be2 O-O 9. O-O Re8 10. Nd2 Nbd7 11. a4 {[%CAl Ba2a4,Ba4a5][%mdl 32]} Ne5 {11...a6 is more fashionable.} 12. Qc2 a6 13. b3 g5 {A77: Modern Benoni: Classical: 9...Re8 10 Nd2: 10...a6 and 10...Nbd7.} (13... Nfg4 $11 {remains equal.}) 14. Bb2 $16 Qe7 15. Rae1 Bd7 {[#]White is slightly better.} 16. a5 $146 ({Predecessor:} 16. Nd1 b5 17. Ne3 Rab8 18. axb5 axb5 19. f3 Ra8 20. Ra1 Ng6 21. Rxa8 Rxa8 22. Rb1 { 0-1 (40) Wygle,S (2211)-Sevillano,E (2521) Reno 2005}) 16... Qd8 17. Ra1 Qe7 18. Rfe1 Nfg4 19. Nd1 f5 $1 20. exf5 (20. f3 {keeps more tension.} Nh6 21. Nf2 fxe4 22. Nfxe4 Bf5 23. b4) 20... Qf7 21. Bxg4 Nxg4 22. Ne3 (22. Re6 {is interesting.} Bxb2 23. Nxb2 Rxe6 24. dxe6 Bxe6 25. Ndc4) 22... Nxe3 23. fxe3 { Black must now prevent f6!} Bxf5 24. e4 Bg6 25. Rad1 Bxb2 26. Qxb2 Qg7 27. Qxg7+ Kxg7 28. Rc1 Bf7 29. Nc4 Rad8 30. Re3 Bg6 31. Rce1 h6 32. h3 Re7 33. R1e2 Bh5 34. Rd2 (34. g4 $5 {[%CAl Rg4h5]} Bg6 35. e5 dxe5 36. Rxe5 Rxe5 37. Rxe5 $14) 34... Bf7 35. Kf2 Rdd7 36. Ke2 Rd8 37. Kd3 Bg6 38. Rde2 Bf7 39. Kc3 Rc7 { [#]} (39... h5 $16 {is a better defense.}) 40. Rb2 $1 $18 Be8 41. Rf2 Re7 42. Rb2 ({White should play} 42. Ref3 $16) 42... Bb5 (42... Rc7 $1 $11) 43. Rd2 Kf6 44. Rde2 Rdd7 45. e5+ dxe5 46. Rxe5 Rxe5 47. Rxe5 $16 {[%mdl 4096] Endgame KRB-KRN} h5 (47... Re7 $16 48. Rxe7 Kxe7) 48. g4 $18 hxg4 49. hxg4 Rh7 (49... Rf7 $142 50. Re6+ Kg7) 50. Re6+ Kg7 $2 (50... Kf7 51. Nd6+ Kf8 52. Nxb5 axb5) 51. Re7+ Kg8 52. Rxh7 Kxh7 {KB-KN} 53. Nd6 Kg6 54. Nxb7 Kf6 55. Nd6 $2 (55. Nxc5 $18 Ke5 56. Ne6) 55... Be2 $11 56. Ne4+ Ke5 57. Nxg5 {aiming for Ne6.} Kxd5 58. Nh7 Ke6 59. g5 Kf5 60. Nf6 Kxg5 61. Nd7 Kf5 62. Nxc5 {Kd4 is the strong threat.} Ke5 63. Nd3+ Bxd3 {The position is equal.} 64. Kxd3 Kd5 65. b4 Kc6 66. Kc4 Kd6 67. b5 axb5+ 68. Kxb5 {White really could win this. Weighted Error Value: White=0.30/Black=0.20} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.19"] [White "Aditya Mittal"] [Black "Ivic, Velimir"] [Result "1-0"] [ECO "D35"] [WhiteElo "2438"] [BlackElo "2581"] [Annotator "TA"] [PlyCount "191"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,191,0,14,16,23,22,21,21,18,16,19,19,20,24,32,34,61,47,68,77,77,32,35, 33,94,25,93,-12,24,25,26,37,31,14,46,0,0,0,0,0,0,0,129,118,160,134,141,141,159, 118,118,118,118,118,150,139,159,119,152,0,245,230,345,310,412,400,506,342,365, 236,253,225,190,162,162,168,163,168,168,168,168,168,168,168,159,116,374,366, 366,350,266,294,290,290,281,239,239,239,239,230,271,8,8,8,8,8,8,8,8,8,8,8,8,8, 29949,29947,29951,29952,29953,29954,29954,29954,29953,29954,29955,29953,29954, 29953,29941,12850,5089,84,84,0,84,8,53,8,29955,29956,29958,29960,29963,29964, 29964,1041,29965,29967,29968,29968,29968,29969,29969,29970,29971,29972,29970, 29971,29973,29974,29975,29975,29975,29976,29976,29976,29977,29979,29977,29978, 29984,29978,29989,29990,29990,29991]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Bb4 6. e3 h6 7. Bxf6 Qxf6 8. Qa4+ Nc6 9. Bb5 Bd7 10. Nge2 {E35: Nimzo-Indian: Classical: 4...d5 5 cxd5 exd5.} O-O 11. O-O Qd6 12. a3 {The position is equal.} Bxc3 13. Nxc3 a6 14. Bd3 Ne7 15. Qc2 {[#]} c6 $146 ({ Predecessor:} 15... f5 16. Rac1 Kh8 17. Ne2 c6 18. Qc5 Qf6 19. Qb6 Rab8 20. Qc7 Be6 {1-0 (66) Dobrov,V (2515)-Naumann,A (2532) Playchess.com INT 2006}) 16. Na4 Rad8 17. b4 Qf6 18. Nc5 Bc8 19. Qa4 b6 20. Nxa6 Ng6 ({Black should try} 20... b5 $1 $14 21. Qa5 Bxa6) 21. b5 (21. Qd1 $16) 21... Nh4 (21... cxb5 $1 $11 22. Bxb5 (22. Qxb5 Nh4 $14) 22... Nh4) 22. f4 (22. bxc6 $2 Qg5 $19) ({Only move:} 22. Qd1 $1 $16) 22... cxb5 23. Qxb5 Nf5 24. Bxf5 Bxf5 25. Nb4 Be4 26. Nc6 Rc8 27. Rac1 Qd6 28. Rc3 ({Much weaker is} 28. Qxb6 Qxa3 29. Qc5 Qxe3+ 30. Rf2 Rc7 $17) 28... Rc7 $1 29. Rfc1 f6 (29... Rfc8 $11) 30. Qxb6 $16 {Threatens to win with Ne7+!} Rd7 31. Qb2 Ra8 32. Nb4 Rda7 33. Rc8+ Rxc8 34. Rxc8+ Kh7 35. h3 Qd7 36. Rc5 Qe6 37. Qb3 Qf7 38. Qb2 $2 ({Worse is} 38. Nxd5 Rd7 $11) ({White must play} 38. Qa2 $1 $16) 38... Qh5 $2 {[#]} (38... Qe6 $1 $11 {and Black is okay.} ) 39. Nxd5 $1 {[%mdl 512]} Qd1+ (39... Bxd5 {was necessary.} 40. Qb1+ Kg8) 40. Kh2 $18 Qf1 41. Nc3 Bd3 42. Qd2 (42. a4) 42... Rxa3 43. Qd1 Qxd1 44. Nxd1 { [%mdl 4096] Endgame KRB-KRN} Ra2 {intending ...Be4.} 45. Kg3 Be4 46. Nf2 Re2 47. Rc3 Bd5 48. e4 Bxe4 49. Nxe4 Rxe4 {KR-KR} 50. Rd3 Kg6 51. d5 Kf7 $2 { [%mdl 8192]} (51... f5 $16 52. Kf3 Kf6) 52. d6 $1 {[%CAl Rd6d7]} Ke8 53. d7+ Kd8 54. Kg4 g6 55. Rd6 $1 f5+ 56. Kf3 g5 57. fxg5 ({Not} 57. Rxh6 Rxf4+ 58. Kg3 Rb4 $14) 57... hxg5 58. Rd5 Rf4+ 59. Ke3 $2 (59. Kg3 $18) 59... Re4+ $11 60. Kf2 g4 61. h4 {Strongly threatening h5.} f4 62. h5 Re6 63. Rd4 {And now g3 would win.} Rh6 64. Rxf4 {Hoping for Rf5.} Rxh5 65. Rd4 {Black must now prevent Kg3.} Re5 $2 {[%mdl 8192]} (65... Ra5 $11) 66. Rd2 $1 Re4 67. Kg3 Ra4 68. Kh4 Rb4 69. Rd3 Ra4 70. g3 Rb4 71. Kg5 Ra4 72. Kf5 Rb4 73. Rd6 Ra4 74. Kg5 Rb4 75. Kf5 Ra4 $1 76. Rg6 (76. Rd5 $16) 76... Ra5+ 77. Kf6 (77. Kxg4 {is more complex.} Kxd7 78. Rg5 Ra6 79. Re5 Kd6 80. Re8) 77... Ra4 $2 {[%mdl 8192] Black is on the road to losing.} (77... Ra6+ $11 78. Kg5 Ra3) 78. Rg7 Ra3 79. Rxg4 Kxd7 80. Rg7+ Ke8 {[#]} 81. Rg8+ $1 Kd7 82. g4 {White mates.} Rf3+ 83. Kg6 Ke7 84. g5 Rg3 85. Kh7 Ke6 {[#]} 86. g6 $1 Rh3+ 87. Kg7 Ra3 88. Rf8 Ra7+ 89. Kh8 Ra2 90. g7 Rh2+ 91. Kg8 Ke7 92. Rf7+ Ke8 93. Rf4 Re2 94. Rg4 Ke7 95. Kh7 Kf6 96. Rg6+ {Weighted Error Value: White=0.30/Black=0.34} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.20"] [White "Warmerdam, Max"] [Black "Maksimovic, Bojan"] [Result "1-0"] [ECO "A57"] [WhiteElo "2535"] [BlackElo "2418"] [Annotator "TA"] [PlyCount "125"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,125,43,41,25,33,52,16,66,58,53,0,0,0,0,0,0,0,22,8,63,64,64,64,70,45, 88,62,99,108,97,111,103,105,102,120,151,137,139,129,160,156,143,53,62,59,66,64, 60,58,68,44,78,78,79,78,82,76,74,80,85,75,70,72,116,124,157,156,178,125,134, 133,126,131,119,129,162,168,164,164,304,301,296,293,265,275,313,293,302,312, 336,338,337,337,337,337,337,335,348,317,620,617,6116,6116,12836,12837,12841, 12838,12838,12839,12839,5539]} 1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. e3 Qa5+ 6. Nc3 Bb7 7. Bd2 axb5 8. Bxb5 Qb6 9. Nf3 {9.a4 is setting a new trend.} Nxd5 {A57: Benko/Volga Gambit.} 10. a4 e6 11. e4 {[#]} Nf6 $146 {The position is equal.} ({Predecessor:} 11... Nxc3 12. Bxc3 Ba6 13. O-O Bxb5 14. Qb3 Qa6 15. Qxb5 f6 16. Nd2 Be7 17. Nc4 O-O {1/2-1/2 (60) Babula,V (2515)-Jones,G (2576) Khanty-Mansiysk 2010}) 12. e5 Nd5 13. Nxd5 ({Better is} 13. Qe2 $14) 13... Bxd5 $11 14. Bc3 Nc6 15. O-O Be7 16. Nd2 O-O 17. Nc4 Qc7 (17... Qb7 $11) 18. Ne3 $1 $14 {[%CAl Re3d5]} Be4 19. Qg4 $36 {[%mdl 2048] White has some pressure.} Bg6 20. Rfd1 d5 {[#]} (20... Nxe5 $2 21. Qg3 $18) 21. Rxd5 exd5 (21... Rfc8 22. Rd2 ) 22. Nxd5 Nxe5 23. Qe2 (23. Qg3 {seems wilder.} Qd6 24. Qxe5 Qxe5 25. Bxe5 Bg5 26. f4) 23... Qd6 24. Qxe5 Qxe5 25. Bxe5 Bf6 26. Nxf6+ gxf6 27. Bxf6 Rfb8 { Hoping for ...Rxb5!} 28. Rc1 Bc2 29. Bf1 ({Much worse is} 29. Rxc2 $6 Rxb5 30. Rc4 Rba5 $11) (29. Be5 $16 Rb6 30. Bc7 (30. Rxc2 Rxb5 31. Rc4 Rb4 $11)) 29... Bxa4 30. Rxc5 Bb3 31. f3 Rc8 32. Rg5+ Kf8 33. Bd3 (33. Rh5 {looks sharper.} Bc2 34. b4 Rc6 35. Bd4 Bg6 36. Bc5+) 33... Bc2 34. Be2 Rc6 35. Bc3 {Bb4+ is the strong threat.} Ke7 36. Rb5 Ra7 37. Kf2 Rd7 38. Rb8 Bd3 39. Bd1 $1 Re6 40. g4 Bc4 41. Ba4 {Threatens to win with Bb4+.} Rd3 42. Rb4 ({White should play} 42. Bb4+ $18 Kf6 43. Bc2) 42... Bd5 $16 43. Rf4 Ree3 {[%CAl Re3f3]} 44. Bb4+ Ke6 { [%CAl Re3f3] [#]} 45. Bd1 {[%mdl 512]} Ke5 (45... f6 46. h4) 46. Rf5+ Ke6 47. Be2 Rb3 (47... h5 {was worth a try.} 48. Bxd3 (48. Rxh5 Rxf3+ 49. Bxf3 Rxf3+ 50. Ke2 Rf4 $16) 48... Rxd3) 48. Bc3 $18 Rexc3 49. bxc3 Rxc3 {[%mdl 4096] Endgame [#] KRB-KRB} 50. Rh5 $1 Rc8 51. Ke3 ({Resist} 51. Rxh7 Rb8 $18) 51... Ra8 {and the idea ...Ra3+ leaves Black hopeful.} 52. Rxh7 Ra3+ 53. Kf4 Ra4+ 54. Kg3 Ra2 55. Bf1 Ra3 56. Bg2 Ra8 57. Rh6+ f6 $2 (57... Ke7 58. h4 Be6) 58. g5 { White is clearly winning.} Kf5 59. Rxf6+ Kxg5 60. Rd6 Bb7 61. f4+ {[%mdl 64] Discovered Attack} Kf5 62. Bxb7 {Threatening mate with Rd5+.} Ra3+ 63. Kh4 { Weighted Error Value: White=0.06/Black=0.24} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.21"] [White "Nguyen, Piotr"] [Black "Zanan, Evgeny"] [Result "1/2-1/2"] [ECO "A03"] [WhiteElo "2411"] [BlackElo "2531"] [Annotator "TA"] [PlyCount "60"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,60,6,-10,-8,-14,-15,-14,-6,-25,-9,-27,-21,-19,-37,-40,-28,-48,-41, -79,-77,-120,-98,-93,-98,-91,-58,-97,-102,-95,-98,-124,-132,-127,-35,-49,21,2, 15,-50,-43,-63,0,0,0,0,0,0,0,0,0]} 1. f4 d5 2. Nf3 g6 3. g3 Bg7 4. Bg2 c5 5. O-O Nc6 6. d3 Nf6 7. Qe1 d4 $1 {[%mdl 4] is more profitable than 7...0-0 at the moment. A03: Bird's Opening with 1...d5.} 8. c4 O-O 9. Na3 e5 10. fxe5 Ng4 11. Nc2 a5 ({Reject} 11... Ncxe5 12. Nxe5 Nxe5 13. b4 $14) 12. Bf4 Ngxe5 13. Nxe5 Nxe5 {[#]} 14. h3 $146 ({Predecessor:} 14. b3 Re8 15. Qd2 Ng4 16. Rae1 h6 17. Bd5 Kh7 18. Qd1 f5 19. Bc1 Ra7 20. h3 {0-1 (48) Vecek,M (2323)-Jahn,P (2213) ICCF email 2017}) 14... h5 15. Qf2 Ra6 16. Kh2 g5 17. Bd2 Ng6 18. e3 Be5 {aiming for ...h4.} 19. exd4 cxd4 20. Kh1 g4 $1 21. hxg4 Rf6 22. Qg1 {[#]} Rxf1 (22... h4 $1 $17 {[%CAl Rh4g3]} 23. Qh2 Bxg4) 23. Rxf1 $15 Bxg4 ({Black should play} 23... h4 $15 24. Qh2 Bxg4) 24. Bd5 Be2 25. Re1 (25. Rf2 $11 Bg4 26. b3 ( 26. Bxb7 Kg7 $11)) 25... Bxd3 26. Nxd4 {[#]} Qf6 (26... Bxc4 $1 $15 27. Bxc4 Bxd4) 27. Nf3 {Black must now prevent Qe3.The position is equal.} Bxc4 28. Bxb7 Bxb2 29. Qc5 {[%mdl 64] Double Attack} Bxa2 30. Qxa5 Be6 {Weighted Error Value: White=0.15/Black=0.20} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.22"] [White "Raja Rithvik R"] [Black "Annaberdiev, Meilis"] [Result "1/2-1/2"] [ECO "D31"] [WhiteElo "2408"] [BlackElo "2532"] [Annotator "TA"] [PlyCount "54"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,54,31,28,35,34,23,34,20,19,-37,-47,-85,-86,-86,-47,-49,-43,-56,0,0,0, 0,36,7,10,14,10,12,12,12,33,23,29,34,33,25,38,37,37,37,33,45,31,21,26,9,14]} 1. d4 d5 2. c4 e6 3. Nc3 a6 4. cxd5 exd5 5. Nf3 h6 6. Qb3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Nf6 7. e4 Nxe4 8. Nxe4 {White is slightly better.} dxe4 {[#]} 9. Bc4 $1 {[#]} Bb4+ $146 ({Predecessor:} 9... Qe7 10. Ne5 Qb4+ 11. Bd2 Qxb3 12. Bxb3 Be6 13. d5 Nd7 14. dxe6 Nxe5 15. O-O f5 { 1-0 (35) Thybo,J (2550)-Haria,R (2463) Reykjavik 2019}) 10. Nd2 {[#]} (10. Qxb4 Nc6) 10... Qe7 11. O-O O-O 12. Re1 Bf5 13. a3 Bxd2 (13... Bd6 $1 $15) 14. Bxd2 $11 Nc6 15. Qxb7 Qd7 {Hoping for ...Rfb8.} 16. Bf4 ({Not} 16. Bxa6 $2 Rab8 $19) 16... Na5 (16... Ra7 $5 17. Qb3 $8 Na5 $14) 17. Qb4 Nxc4 18. Qxc4 c6 19. Rac1 Rfc8 20. Qc5 Bg6 21. b4 Qd8 22. Qd6 Qe8 23. Rc3 Rd8 24. Qxc6 Qxc6 25. Rxc6 Rxd4 26. Rec1 Rd3 27. R6c3 Rad8 {Weighted Error Value: White=0.11/Black=0.10} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.23"] [White "Nenezic, Marko"] [Black "Vardaan Nagpal"] [Result "1-0"] [ECO "A06"] [WhiteElo "2531"] [BlackElo "2366"] [Annotator "TA"] [PlyCount "77"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,42,25,42,10,21,25,30,25,36,36,36,24,52,50,53,52,60,60,60,51,39,40,51, 39,79,30,119,117,121]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 4. O-O Be7 5. d4 O-O 6. c4 Ne4 7. Qc2 c6 8. b3 f5 9. Ba3 {A93: Classical Dutch: Classical Stonewall: 7 b3. } Bxa3 10. Nxa3 Qe7 11. Qb2 {White has an edge.} Bd7 12. Nc2 {[%CAl Ba3c2, Bc2e1,Be1d3][%mdl 32]} Be8 13. Nce1 Nd7 14. Nd3 {[#]} Bh5 $146 ({Predecessor:} 14... Bg6 15. e3 Bh5 16. Nfe5 Nxe5 17. Nxe5 Nf6 18. Rac1 Nd7 19. Nd3 a5 20. a3 Rfc8 {1/2-1/2 (35) Antic,D (2445)-Kaspi,A (2475) Kavala 1996}) 15. Rac1 g5 16. Nfe5 Nef6 17. Nxd7 (17. cxd5 {is more complex.} exd5 18. b4 a6 19. a4 Nb6 20. a5) 17... Nxd7 18. e3 Bf7 19. f4 h5 20. Qd2 a5 (20... g4 $11 {keeps the balance.}) 21. cxd5 exd5 {Weighted Error Value: White=0.09/Black=0.20} 22. fxg5 Qxg5 23. Rf4 Bg6 24. Rcf1 Rf6 25. Ne1 Qh6 26. Nf3 b6 27. Nh4 Raf8 28. Bh3 Qh7 29. Qd3 Nb8 30. Nxg6 Qxg6 31. Bxf5 Qg5 32. Kg2 Kg7 33. e4 dxe4 34. Qxe4 Na6 35. h4 Qh6 36. Qe5 Nb4 37. Be4 Nd5 38. Bxd5 cxd5 39. Rxf6 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.24"] [White "Sedlak, Nikola"] [Black "Gasimov, Parviz"] [Result "0-1"] [ECO "D02"] [WhiteElo "2519"] [BlackElo "2353"] [Annotator "TA"] [PlyCount "94"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,81,7,17,27,73,63,106,109,114,93,113,103,116,101,104,85,85,94,89,78, 125,35,54,0,20,28,31,-43,-37,-28,-31,-20,-25,-33,-27,-33,0,-37,0,0,12,0,0,-102, -102,-82,-102,-72,-88,-84,0,0,0,0,0,0,0,-658,-656,-589,-466,-640,-625,-597, -576,-29972,-4702,-29971,-29971,-29973,-29974,-29972,-29973,-6094]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 Bf5 6. Bb5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Qb6 7. c4 a6 8. Bxc6+ {White is better.} bxc6 {[#]} 9. dxc5 $146 ({Predecessor:} 9. Qa4 Bd3 10. Ne5 dxc4 11. Ndxc4 Bxc4 12. Qxc4 cxd4 13. Qxf7+ Kd8 14. O-O c5 15. exd4 cxd4 {1-0 (27) Le,Q (2709)-Gevorgyan,M (2228) Chess.com INT 2020}) 9... Qxc5 10. Rc1 dxc4 11. O-O Rd8 12. Ne5 Ne4 13. Nxe4 Bxe4 14. Qg4 ({But not} 14. Rxc4 Rxd1 15. Rxd1 (15. Rxc5 Rxf1+ 16. Kxf1 f6 $17) 15... Qb5 $15) 14... h5 {[#]} 15. Qe2 ({White should play} 15. Qh3 $1 $16 Qb6 16. Nxc4 (16. Rxc4 Bd5 $16)) 15... Qb5 16. a4 ( {Avoid the trap} 16. Nxc4 $2 Bd3 $19) 16... Qxa4 {aiming for ...f6.} 17. Rxc4 Qb5 {And now ...Bd3! would win.} 18. Qe1 ({White should try} 18. Rd1 $1 $14 Bd5 19. Qd3) 18... Bd3 $15 {[%mdl 64] Double Attack} 19. Rb4 Bxf1 20. Rxb5 Bxb5 21. h4 e6 22. Qc3 c5 23. e4 $1 Rd1+ 24. Kh2 {Qf3 is the strong threat.} Bd6 (24... Rd8 {seems wilder.} 25. Kg1) 25. Qf3 Rd4 26. Nxf7 Bxf4+ $17 27. Qxf4 O-O $36 { [%mdl 2048] White is under strong pressure.} 28. Nh6+ gxh6 29. Qxh6 {[#]} Rxf2 (29... Rd7 $1 $17 30. Qxe6+ Kh7) 30. Qg5+ $1 $11 {[%mdl 64] Double Attack} Kf7 {Strongly threatening ...Rdd2.} 31. Qxh5+ Kg7 {Threatens to win with ...Rdd2.} 32. Qg5+ Kf7 {Hoping for ...Rdd2.} 33. h5 $2 {[%mdl 8192]} (33. Qh5+ $11 Kg8 34. Qg5+ Kh8 35. Qh5+ Kg8 36. Qg5+ Kh8 37. Qh5+ Kg8) 33... Rdd2 $19 34. Qg6+ Kf8 35. Qh6+ Ke7 36. Qg7+ Kd6 37. h6 {Black must now prevent h7.} Bf1 (37... Rxg2+ $142 38. Qxg2 Rxg2+ 39. Kxg2 Bd3 40. Kh3 Bxe4 41. Kh4 Bh7 42. Kg3 Kd5 43. Kf4 a5 44. Kg5 Ke5 45. Kg4 a4 46. Kg5 c4 47. Kg4 c3 {[%mdl 64] Promotion} 48. bxc3 a3 49. Kg3 a2 50. Kf3 a1=Q 51. Ke3 Qf1 52. c4 Bd3 53. Kd2 Kd4 54. h7 Qe2+ 55. Kc1 Qc2#) 38. Qg3+ Kc6 {Black mates.} 39. Qb8 Rxg2+ 40. Kh1 Bd3 41. Qe8+ { Weighted Error Value: White=0.80/Black=0.43} Kd6 42. Qf8+ Ke5 43. Qxc5+ Kxe4 44. Qb4+ Kf3 45. Qf8+ Bf5 46. Qa3+ Rd3 47. Qa1 Kf2 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.25"] [White "Irizanin, Radoje"] [Black "Damljanovic, Branko"] [Result "0-1"] [ECO "A01"] [WhiteElo "2330"] [BlackElo "2501"] [Annotator "TA"] [PlyCount "50"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,50,-7,5,-6,0,-10,-14,-10,-16,-25,-19,-37,-16,-22,-6,-72,-71,-86,-78, -84,-77,-124,-127,-158,-121,-179,-180,-276,-270,-280,-276,-269,-275,-343,-347, -833,-815,-29971,-29972,-6395,-5914,-2634,-2148]} 1. b3 e5 2. Bb2 d6 3. c4 Nf6 4. g3 g6 5. Bg2 Bg7 6. e3 {A01: Nimzowitsch-Larsen Opening.} O-O 7. Ne2 Re8 8. Nbc3 {The position is equal.} c6 9. d4 e4 10. Qc2 {[%CAl Rc3e4]} Qe7 11. h3 h5 {[#]} 12. O-O-O $146 (12. O-O $11) ({Predecessor:} 12. Ba3 Na6 13. b4 Nc7 14. b5 cxb5 15. cxb5 Be6 16. Nf4 Bc4 17. Qa4 Be6 18. Nxe6 Qxe6 {1-0 (53) Stanec,N (2440)-Weinzettl,E (2330) Gamlitz 1993}) 12... Na6 $17 13. a3 Nc7 14. Kb1 Bd7 15. g4 hxg4 16. Ng3 d5 17. cxd5 (17. h4 $17 {was called for.}) 17... cxd5 $19 ( {Resist} 17... Ncxd5 18. Rdg1 $17) 18. Ncxe4 (18. hxg4 {is a better defense.} Bxg4 19. Rc1) 18... Nxe4 19. Bxe4 dxe4 20. Qxc7 gxh3 21. Rdg1 Rac8 22. Qf4 {[#] } (22. Qa5) 22... Qe6 23. Nh5 Qxb3 24. Qf6 Bxf6 25. Nxf6+ Kg7 {Weighted Error Value: White=0.86/Black=0.05} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.26"] [White "Karacsonyi, Gellert"] [Black "Leniart, Arkadiusz"] [Result "1/2-1/2"] [ECO "B11"] [WhiteElo "2327"] [BlackElo "2499"] [Annotator "TA"] [PlyCount "62"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,62,26,20,49,19,27,12,3,0,6,-8,0,-63,-39,-36,-47,-64,-64,-65,-68,-86, -92,-110,-65,-62,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. Qg3 Nf6 7. d3 g6 {B11: Caro-Kann: Two Knights Variation.} 8. Be2 Bg7 9. O-O O-O 10. f4 c5 {[#]} 11. f5 $146 ({Predecessor:} 11. exd5 Nxd5 12. Nxd5 Qxd5 13. Bf3 Qd7 14. Be3 Nc6 15. Bxc5 Bxb2 16. Rab1 Bd4+ 17. Bxd4 Nxd4 {0-1 (54) Schnitzer,P (2208)-Serafimov,T (2276) Elancourt 2003}) 11... Nc6 {[%CAl Bb8c6,Bc6d4,Bd4c2][%mdl 32]} 12. Kh1 ( 12. Bg5 $11) 12... exf5 {Threatens to win with ...d4.} 13. exf5 Nd4 14. fxg6 fxg6 15. Bg5 Nxc2 16. Rac1 Nd4 17. Bf3 Nf5 18. Qh2 d4 (18... Qd7 $1 $15 19. Bxf6 Bxf6 20. Bxd5+ Kh8) 19. Nd5 $11 {Strongly threatening Nc7.The position is equal.} Rc8 20. Nxf6+ Bxf6 21. Bxf6 Rxf6 22. Bxb7 Qc7 23. Rxf5 $1 Rxf5 24. Bxc8 Qxc8 {[%mdl 4096] Endgame KQR-KQR} 25. Qd6 Qf8 26. Qa6 Qf7 27. Re1 Kg7 28. Qd6 {Re7 is the strong threat.} Rf1+ 29. Rxf1 Qxf1+ {[%mdl 64] [#] Double Attack} 30. Kh2 Qxd3 31. Qe7+ Kg8 {Weighted Error Value: White=0.07/Black=0.10} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.27"] [White "Blohberger, Felix"] [Black "Papidakis, Georgios"] [Result "1-0"] [ECO "C47"] [WhiteElo "2490"] [BlackElo "2135"] [Annotator "TA"] [PlyCount "71"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,71,0,0,0,0,0,0,0,0,0,0,0,0,0,-12,-10,0,0,64,31,45,56,42,44,49,30,48, 10,12,17,50,-22,-26,-40,-58,-102,52,43,153,142,155,123,295,243,231,231,218,177, 194,162,213,152,192,179,243,241,284,289,350,326,336,334,1041,1016]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3 d5 5. Bb5 Nxe4 6. Qe2 {C47: Scotch Four Knights and Four Knights with 4 g3.} Qd6 7. Nxe4 dxe4 8. Qxe4 {The position is equal.} Bd7 9. d4 {[%CAl Rd4e5]} f5 10. Qe2 {[%CAl Rd4e5]} e4 11. Bxc6 Bxc6 12. Ne5 Be7 ( 12... Qxd4 $6 13. Qh5+ g6 14. Nxg6 $16) 13. Bg5 {[#]} O-O $146 (13... Qxd4 $11 14. Qh5+ g6 15. Nxg6 hxg6 16. Qxg6+ {[%mdl 64] Double Attack} Kf8 17. Qxf5+ Ke8 18. Qg6+ (18. Qe6 $2 Qd6 $19) 18... Kf8 19. Qf5+ Ke8 20. Qg6+ (20. Qe6 $2 Qd6 $19) 20... Kf8 21. Qf5+) ({Predecessor:} 13... Bxg5 14. Qh5+ g6 15. Qxg5 O-O 16. O-O-O f4 17. h4 Rf5 18. Qg4 Qe6 19. Qh3 Qa2 {1/2-1/2 (42) Mammadova,G (2350)-Kovalev,V (2678) Nakhchivan 2019}) 14. Bxe7 Qxe7 15. Qc4+ Kh8 16. O-O-O Be8 17. Kb1 Bh5 18. Rde1 Rac8 19. f4 c5 20. h3 ({White should try} 20. d5 $14) 20... b5 $11 21. Qxb5 cxd4 22. g4 {[#]} Rb8 $2 23. Qa4 $14 Qb7 24. Qxd4 $16 Rfd8 25. Qb4 {And now Qxb7 would win.} Qa6 {A mistake that costs the game.} 26. Qc3 Rdc8 27. Qd4 Bg6 {intending ...Qxa3.} 28. Re3 Rd8 29. Qc4 Qf6 (29... Qxc4 $142 30. Nxc4 Kg8) 30. b3 Rdc8 31. Qd4 Qe7 (31... Rd8 {keeps fighting.} 32. Qc5 (32. Qxa7 Ra8 $16) 32... Rbc8) 32. Kb2 $18 Qc7 33. Rc3 Qb7 34. Rd1 Rxc3 35. Qxc3 Qe7 $2 {[#]} (35... Rc8 36. Rd5 fxg4 37. hxg4 Kg8) 36. Nc6 {[%mdl 64] Double Attack. Weighted Error Value: White=0.16/Black=0.37} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.28"] [White "Barseghyan, Armen Ar."] [Black "Nestorovic, Nikola"] [Result "1/2-1/2"] [ECO "E16"] [WhiteElo "2316"] [BlackElo "2477"] [Annotator "TA"] [PlyCount "96"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,96,10,27,23,25,36,30,12,14,-24,2,6,49,46,71,27,36,22,29,32,20,27,25, 31,32,10,55,38,73,19,19,19,35,19,19,20,12,12,12,19,33,26,42,34,11,13,19,25,56, 0,0,0,0,-39,0,0,0,0,89,94,55,16,16,16,16,16,16,16,16,16,17,25,60,0,0,0,0,0,0,0, 0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. e3 Bxd2+ 6. Qxd2 d6 7. Nc3 {E11: Bogo-Indian.} O-O 8. Be2 e5 9. dxe5 {White has an edge.} dxe5 10. Qc2 {[#]} Nc6 $146 ({Predecessor:} 10... c6 11. O-O h6 12. Rfd1 Nbd7 13. a3 Re8 14. b4 Nf8 15. c5 Bg4 16. Nd2 Bxe2 17. Nxe2 {1/2-1/2 (51) Kuerschner,E (1903)-Leitner,M (2223) Bayern 2015}) 11. Nd2 Bg4 12. Bxg4 Nxg4 13. h3 (13. Nd5 $5 {[%CAl Rd5e7]} Qd8 14. Ne4 $14) 13... Nf6 14. a3 Rad8 15. O-O-O Qe6 16. g4 Na5 17. b3 a6 18. g5 Ne8 19. Kb2 Nd6 20. c5 (20. h4 $16) 20... Nf5 $11 21. Nde4 Nc6 22. Rxd8 Rxd8 23. Rd1 Rxd1 24. Qxd1 Nfe7 25. Qg4 Nf5 26. h4 Kf8 27. h5 h6 28. gxh6 gxh6 29. b4 b5 30. Nd2 (30. cxb6 $1 $14 cxb6 31. Qd1) 30... Ng7 31. Qf3 f5 32. Nde4 Kg8 (32... a5 {is more complex.} 33. bxa5 Nxa5 34. Nd2 c6 35. Kc2 Kf7) 33. Ng3 Kf7 34. Qd1 a5 (34... Ke8 $11 {remains equal.}) 35. Nxb5 $16 axb4 36. Nxc7 bxa3+ 37. Kxa3 Qc4 {[#] Threatens to win with ...Qb4+.} 38. Qd5+ Qxd5 39. Nxd5 $11 {[%mdl 4096] Endgame KNN-KNN} f4 40. exf4 Ke6 41. Nb4 exf4 42. Nxc6 ({White should try} 42. Ne2 $14 Nxb4 43. Kxb4 Nxh5 44. Ka5) 42... fxg3 {The position is equal.} 43. fxg3 {[#] Hoping for g4.} Nxh5 {KN-KN} 44. Nd4+ Kd5 45. c6 Kd6 46. Kb4 Nxg3 47. Kb5 Kc7 48. Ne6+ Kc8 {Weighted Error Value: White=0.12/Black=0.12} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.29"] [White "Puranik, Abhimanyu"] [Black "Boucquet, Emile"] [Result "1-0"] [ECO "A06"] [WhiteElo "2589"] [BlackElo "2100"] [Annotator "TA"] [PlyCount "51"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,50,5,4,13,8,38,41,47,51,62,71,63,60,54,35,298,302,363,329,506,505, 555,548,1237,1236,1879,1897,29991,29992,29994,29995,29996,29997,29998,29999, 29999]} 1. Nf3 d5 2. e3 e6 3. b3 c5 4. Bb2 Nc6 5. d4 Nf6 6. Bd3 Bd6 7. O-O O-O 8. Nbd2 cxd4 9. exd4 Qc7 {D05: Colle System with ...e6.} 10. c4 e5 11. cxd5 Nxd4 {White is slightly better.} 12. Rc1 Qb8 13. Nxd4 exd4 {[#]} 14. Nf3 $146 ( {Predecessor:} 14. h3 Bf4 15. Bxd4 Nxd5 16. Qh5 g6 17. Qxd5 Bxd2 18. Rc2 Be6 19. Qf3 Qf4 20. Qxf4 Bxf4 {1-0 (66) Chemin,J-Gonzalez,B (2335) Guarapuava 1992} ) 14... Bg4 {aiming for ...Bxh2+!} 15. g3 Nxd5 $2 {[%mdl 8192] [#] Black cannot hold the game after this.} ({Black should try} 15... Qd8 $14) 16. Bxh7+ $1 $18 {[%mdl 512]} Kxh7 (16... Kh8 17. Qxd4) 17. Ng5+ {[%mdl 64] Discovered Attack} ({Weaker is} 17. Qxd4 Nf6 $11) 17... Kg6 (17... Kg8 $142 18. Qxg4 Bf4 19. gxf4 Qxf4) 18. Qxg4 Nf6 19. Qxd4 Kxg5 20. Rc4 {Intending Qh4+ and mate.} Rh8 21. Qd2+ Kg6 22. Qd3+ {White mates.} Kh6 23. Rh4+ Nh5 24. Qf5 {[%csl Gf5] [%CAl Rh4h5][%mdl 64] Double Attack} g5 25. Qf6+ {[%mdl 64] Double Attack} Kh7 26. Qg7# {Weighted Error Value: White=0.03/Black=0.84} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "6.30"] [White "Kuzubov, Yuriy"] [Black "Maerevoet, Sim"] [Result "1-0"] [ECO "D35"] [WhiteElo "2653"] [BlackElo "2384"] [Annotator "TA"] [PlyCount "89"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,89,16,0,0,0,2,-3,0,0,10,0,0,0,8,-15,0,-10,-7,-21,-31,-23,7,4,4,-12, 23,8,20,30,18,21,71,70,144,146,133,139,149,164,164,162,164,151,164,162,138,139, 144,125,598,591,577,561,924,568,653,633,624,633,652,602,736,736,697,671,1621, 1599,1444,642,5397,490,29980,29981]} 1. c4 e6 2. d4 d5 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bd6 7. Bd3 O-O 8. Qc2 h6 9. Bh4 Re8 10. Nf3 Be6 {[#] now scores much better than the old 10...Nbd7. D35: Queen's Gambit Declined: Exchange Variation.} 11. Rb1 $146 ({Predecessor:} 11. Ne5 c5 12. O-O cxd4 13. exd4 Nc6 14. Nxc6 bxc6 15. Bg3 Bxg3 16. hxg3 Ng4 17. Bf5 Qf6 18. Bxg4 Bxg4 { 1-0 (78) Sarana,A (2654)-Esipenko,A (2682) Chess.com INT 2020}) 11... Nbd7 12. b4 Rc8 {The position is equal.} 13. Na4 Qe7 14. a3 b6 15. O-O Bg4 (15... g5 $5 16. Bg3 $8 Ne4 $11) 16. Nc3 Qe6 17. Rfc1 Ne4 18. Nd2 {[%CAl Rd2e4]} Nxc3 19. Qxc3 Bf5 20. Bxf5 Qxf5 21. a4 g5 22. Bg3 Bxg3 23. hxg3 Nf6 24. Qc2 Ne4 25. Nxe4 dxe4 {[#]} ({Better is} 25... Qxe4 $14 26. Qxe4 Rxe4) 26. Rb3 $1 $16 Re6 27. Rc3 Rf6 28. b5 c5 29. dxc5 Rxc5 30. Rxc5 bxc5 $18 {[%mdl 4096] Endgame KQR-KQR} 31. g4 {[%mdl 64] Deflection} Qxg4 32. Qxc5 Qe2 33. Rf1 ({But not} 33. Qxa7 $6 Qxf2+ 34. Kh1 Kh7 $11) 33... g4 $2 {[%mdl 8192] A mistake that costs the game.} (33... Kg7 $16 34. Qd4 (34. Qxa7 Rd6 $11) 34... Qc2) 34. Qxa7 Kg7 35. Qc7 { aiming for b6.} h5 36. Qe5 h4 {If Black can now play ...h3 this consolidates a bit.} 37. Qg5+ Rg6 38. Qxh4 Qa2 39. Qg3 Qxa4 40. Qe5+ Kh7 41. g3 Qc4 42. Kg2 Rh6 43. Qf5+ Kh8 44. Qg5 (44. Rh1 $142 Rxh1 45. Kxh1) 44... Qe6 {[#]} (44... Kh7 $18 45. Qf5+ Kh8 46. Qe5+ Kh7 47. Qf5+) 45. Qxh6+ $3 {[%mdl 512] Weighted Error Value: White=0.30/Black=0.67} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.1"] [White "Fedoseev, Vladimir"] [Black "Safarli, Eltaj"] [Result "1/2-1/2"] [ECO "E06"] [WhiteElo "2696"] [BlackElo "2598"] [Annotator "TA"] [PlyCount "132"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 23,132,10,14,17,22,6,10,5,14,20,19,9,21,8,14,0,0,0,0,0,0,0,0,0,9,0,10,9, 13,14,20,11,28,12,11,0,21,12,8,0,55,47,47,41,47,47,47,47,47,47,47,47,47,47,53, 52,56,47,47,47,47,47,82,81,95,87,87,92,102,83,87,7,7,7,7,7,8,8,8,0,0,0,0,0,1,0, 8,0,0,0,0,0,0,0,0,0,0,0,7,0,7,7,8,3,224,224,224,223,224,0,224]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 Bd5 11. Qc2 Be4 12. Qc1 h6 13. Bxf6 {E05: Open Catalan: 5 Nf3 Be7.} Bxf6 14. Rd1 a5 15. Nbd2 Bh7 16. Nb3 c6 {[#]} 17. Nfd2 $146 ({Predecessor:} 17. Qc3 Nd7 18. Ne5 Nb6 19. Nxa5 Nd5 20. Bxd5 Qxa5 21. Bb3 Rfd8 22. Qxa5 Rxa5 23. e3 {1-0 (47) Giri,A (2780)-Cuenca Jimenez,J (2524) chess24.com INT 2021}) 17... Na6 ({Avoid the trap} 17... Bxd4 $2 18. Nc4 $18) 18. Qc3 Nb4 {Threatening ... Nc2.} 19. Be4 Bxe4 20. Nxe4 Be7 21. Nec5 Qc7 22. Qc4 Rfd8 23. Rac1 Bxc5 24. Nxc5 Na6 25. Nd3 Rd6 26. e3 Rad8 27. Rb1 Rd5 28. Rdc1 Qe7 29. Rc3 g6 30. Rbc1 h5 31. Qb3 Qc7 ({Better is} 31... h4 $11) 32. h4 $14 Kg7 33. Kf1 Kg8 34. Rc4 R5d6 35. Qc3 Rd5 36. Rb1 Qb6 37. Kg2 Qc7 38. b3 Qb6 39. Rb2 Qc7 40. Kg1 Qb6 41. Kh2 Qc7 42. Kg2 Qb6 43. b4 Nxb4 44. Nxb4 axb4 45. Rcxb4 Qa5 46. Qc4 c5 {[#]} 47. Rb5 ({Much worse is} 47. Rxb7 $6 cxd4 48. e4 Rc5 $11) (47. dxc5 $1 $16 Rxc5 48. Qe4) 47... Qa8 $1 $11 {[%CAl Rc5d4]} 48. dxc5 ({Don't go for} 48. Rxc5 $2 Rxc5 49. Qf1 Ra5 $19) 48... Rxc5 49. Qe4 Rxb5 50. Rxb5 {[%mdl 4096] Endgame KQR-KQR} b6 51. Kf3 (51. Qxa8 {looks sharper.} Rxa8 52. Rb4 Kf8 53. f3 Ke7 54. g4) 51... Qxe4+ 52. Kxe4 {KR-KR} Ra8 53. Rb4 Kf8 54. Kf4 Ra5 55. e4 e5+ 56. Ke3 Ke7 57. f4 exf4+ 58. gxf4 Kd7 59. e5 Ke7 60. Kd4 Kd7 61. Kd3 Ke7 62. Kc3 Rc5+ 63. Rc4 {[#] Threatens to win with Rxc5.} Rxc4+ $2 (63... Ra5 $1 $11 {and Black is okay.}) 64. Kxc4 $18 {Strongly threatening Kb5.} Kd8 65. Kd4 {aiming for Ke4.} Ke7 66. Kc4 {Black must now prevent Kb5.} Kd8 $1 {Weighted Error Value: White=0.06/Black=0.05} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.2"] [White "Erigaisi Arjun"] [Black "Kovalenko, Igor"] [Result "0-1"] [ECO "B17"] [WhiteElo "2567"] [BlackElo "2643"] [Annotator "TA"] [PlyCount "100"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,100,21,17,19,16,20,29,28,22,17,15,11,9,20,23,16,0,0,0,15,19,28,20,29, 16,23,23,20,24,14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-16,-152,-96,-81,-84, -260,-278,-278,-271,-271,-271,-279,-279,-279,-224,-231,-231,-245,-54,-47,-58, -51,-51,-37,-37,-37,-37,-718,-396,-503,-374,-629,-623,-1551,-1452,-5257,-5257, -29985,-5197,-29986,-29987,-29991,-29986]} 1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Bd3 Ngf6 6. c3 Nxe4 {B17: Caro-Kann: Modern Line (4...Nd7).} 7. Bxe4 Nf6 8. Bd3 Bg4 {White has an edge.} 9. Qb3 Qd7 10. Bf4 e6 11. Ne2 {[#]} Bh5 $146 ({Predecessor:} 11... Be7 12. O-O O-O 13. Qc2 Bh5 14. Rad1 b5 15. Be5 Bg6 16. Nf4 Bxd3 17. Rxd3 Nd5 18. Rh3 g6 {1/2-1/2 (32) Mihalj,M (2287)-Nadj Hedjesi,B (2301) Sombor 2004}) 12. Be5 Bg6 13. O-O-O Ng4 14. Bg3 Bd6 {And now . ..Bxg3 would win.} 15. Bxg6 hxg6 16. h3 Nf6 17. Bxd6 Qxd6 18. Qxb7 O-O 19. Qa6 Rfb8 20. Qc4 Rb5 21. a4 Ra5 (21... Rf5 {is interesting.} 22. Rhf1 Rb8 23. Ng3 Rd5 24. Rd3 Qf4+) 22. Kc2 Nd5 23. b4 Nb6 24. Qd3 Rxa4 25. Ra1 a5 $1 {[%CAl Ra5b4]} 26. Rxa4 Nxa4 27. Ra1 axb4 {Strongly threatening ...b3+!} 28. Qc4 c5 29. dxc5 Qe5 $36 {[%mdl 2048] Hoping for ...b3+! Black fights for an advantage. } 30. Ng3 $2 {[#]} (30. Rxa4 $11 {remains equal.} Qf5+ (30... Rxa4 31. cxb4 Ra2+ (31... Qa1 32. Nc3)) 31. Kb2 Rxa4 32. cxb4) 30... b3+ (30... Rd8 $142 $1 31. Qxb4 (31. Rxa4 $2 Qe1 $19) 31... Nxc5) 31. Qxb3 $17 Qf4 ({Much worse is} 31... Qxc5 $6 32. Ne4 $14) 32. f3 Qxg3 $19 33. Rxa4 Qxg2+ {[%mdl 4096] Endgame KQR-KQR} 34. Kb1 Rc8 ({Weaker is} 34... Qxf3 35. Rxa8+ Qxa8 36. Qb6 $11) 35. Rc4 Qxf3 36. c6 Qd3+ ({Avoid the trap} 36... Rxc6 $4 37. Qb8+ Kh7 38. Rh4+ Qh5 39. Rxh5+ gxh5 40. Kc2 $18) 37. Kb2 Qd2+ 38. Kb1 Qd8 (38... Qe1+ $19 39. Kb2 Qf2+ 40. Qc2 Qb6+ 41. Qb3 Rxc6 42. Qxb6 Rxb6+ 43. Kc2 Kf8) 39. Kc2 e5 40. Qb7 Qc7 41. h4 f5 {...Kh7 is the strong threat.} 42. Rc5 $1 {[%CAl Rc5d5] Threatens to win with Rd5.} Kh7 43. Qb3 $2 (43. Qxc7 $15 Rxc7 44. Kd3) 43... Qd6 44. Qc4 Rc7 45. Kb3 $2 (45. Qd5 Qxd5 46. Rxd5) 45... e4 46. Ka4 e3 { aiming for ...e2!} 47. Kb5 Ra7 {[%CAl Rd6b8]} 48. Qd5 Qb8+ 49. Kc4 e2 50. Qe6 Ra4+ {Weighted Error Value: White=0.73/ Black=0.21} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.3"] [White "Hovhannisyan, Robert"] [Black "Shevchenko, Kirill"] [Result "1/2-1/2"] [ECO "B92"] [WhiteElo "2632"] [BlackElo "2605"] [Annotator "ChessBase"] [PlyCount "186"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] [TimeControl "40/5400+30:900+30"] 1. e4 {[%emt 0:00:05]} c5 {[%emt 0:00:05]} 2. Nf3 {[%emt 0:00:10]} d6 {[%emt 0: 00:08]} 3. d4 {[%emt 0:00:07]} cxd4 {[%emt 0:00:03]} 4. Nxd4 {[%emt 0:00:07]} Nf6 {[%emt 0:00:04]} 5. Nc3 {[%emt 0:00:08]} a6 {[%emt 0:00:20]} 6. Be2 { [%emt 0:00:30]} e5 {[%emt 0:00:45]} 7. Nf3 {[%emt 0:00:28]} Be7 {[%emt 0:00:31] } 8. Bg5 {[%emt 0:00:35]} Be6 {[%emt 0:00:21]} 9. Bxf6 {[%emt 0:00:42]} Bxf6 { [%emt 0:00:04]} 10. O-O {[%emt 0:00:37]} O-O {[%emt 0:01:04]} 11. a4 {[%emt 0: 00:50]} Nd7 {[%emt 0:05:45]} 12. Qxd6 {[%emt 0:01:23]} Rc8 {[%emt 0:02:49]} 13. Rfd1 {[%emt 0:12:27]} Be7 {[%emt 0:04:13]} 14. Qd3 {[%emt 0:01:06]} Qb6 { [%emt 0:25:23]} 15. Nd5 {[%emt 0:30:24]} Bxd5 {[%emt 0:00:11]} 16. exd5 { [%emt 0:12:02]} Nc5 {[%emt 0:12:02]} 17. Qe3 {[%emt 0:01:45]} e4 {[%emt 0:14: 35]} 18. Nd4 {[%emt 0:00:54]} Bf6 {[%emt 0:03:22]} 19. c3 {[%emt 0:01:06]} Rfd8 {[%emt 0:04:35]} 20. a5 {[%emt 0:08:24]} Qc7 {[%emt 0:05:47]} 21. Nc6 {[%emt 0: 09:22]} bxc6 {[%emt 0:10:17]} 22. Qxc5 {[%emt 0:00:05]} Rxd5 {[%emt 0:00:07]} 23. Rxd5 {[%emt 0:00:19]} cxd5 {[%emt 0:00:01]} 24. Qxc7 {[%emt 0:04:00]} Rxc7 {[%emt 0:00:01]} 25. Bxa6 {[%emt 0:00:08]} d4 {[%emt 0:01:43]} 26. cxd4 { [%emt 0:00:17]} Rc2 {[%emt 0:01:52]} 27. Re1 {[%emt 0:08:57]} Rxb2 {[%emt 0:03: 12]} 28. Rxe4 {[%emt 0:00:07]} g6 {[%emt 0:01:21]} 29. Be2 {[%emt 0:02:24]} Rb1+ {[%emt 0:01:27]} 30. Bf1 {[%emt 0:00:05]} Rd1 {[%emt 0:00:05]} 31. a6 { [%emt 0:01:44]} Bxd4 {[%emt 0:00:11]} 32. Re2 {[%emt 0:00:33]} Kf8 {[%emt 0:03: 33]} 33. g3 {[%emt 0:00:21]} Ba7 {[%emt 0:00:18]} 34. Rc2 {[%emt 0:01:11]} Rd7 {[%emt 0:00:20]} 35. Kg2 {[%emt 0:00:27]} Re7 {[%emt 0:00:35]} 36. h4 {[%emt 0: 01:09]} Kg7 {[%emt 0:00:31]} 37. Be2 {[%emt 0:00:41]} Rd7 {[%emt 0:00:46]} 38. Kf3 {[%emt 0:01:09]} Re7 {[%emt 0:00:01]} 39. Bd3 {[%emt 0:00:26]} Re6 { [%emt 0:00:58]} 40. Rb2 {[%emt 0:00:00]} Rf6+ {[%emt 0:00:00]} 41. Kg2 { [%emt 0:01:11]} Rd6 {[%emt 0:02:45]} 42. Bf1 {[%emt 0:01:19]} Rd7 {[%emt 0:01: 01]} 43. Re2 {[%emt 0:01:16]} Kf6 {[%emt 0:00:25]} 44. Ra2 {[%emt 0:01:11]} h5 {[%emt 0:06:59]} 45. Rc2 {[%emt 0:00:31]} Re7 {[%emt 0:00:11]} 46. Rc8 { [%emt 0:01:12]} Rd7 {[%emt 0:00:43]} 47. Rc6+ {[%emt 0:01:20]} Kg7 {[%emt 0:00: 30]} 48. Rc2 {[%emt 0:00:16]} Re7 {[%emt 0:00:43]} 49. Rd2 {[%emt 0:00:30]} Kf8 {[%emt 0:01:23]} 50. Bb5 {[%emt 0:00:28]} Re5 {[%emt 0:00:30]} 51. Bc6 { [%emt 0:01:33]} Re6 {[%emt 0:00:37]} 52. Bb5 {[%emt 0:01:01]} Re5 {[%emt 0:00: 10]} 53. Bc4 {[%emt 0:00:25]} Re7 {[%emt 0:02:53]} 54. Kf3 {[%emt 0:00:19]} Kg7 {[%emt 0:00:18]} 55. Rb2 {[%emt 0:00:36]} Re5 {[%emt 0:00:57]} 56. Kg2 { [%emt 0:00:36]} Re4 {[%emt 0:00:33]} 57. Bf1 {[%emt 0:00:45]} Re7 {[%emt 0:01: 09]} 58. Be2 {[%emt 0:02:16]} Re6 {[%emt 0:00:26]} 59. Kf1 {[%emt 0:00:57]} Re7 {[%emt 0:00:23]} 60. Bd3 {[%emt 0:00:27]} Kf6 {[%emt 0:00:52]} 61. Rb4 { [%emt 0:02:33]} Kg7 {[%emt 0:01:14]} 62. Re4 {[%emt 0:00:32]} Rd7 {[%emt 0:00: 22]} 63. Ke2 {[%emt 0:00:09]} Kf8 {[%emt 0:01:34]} 64. Rf4 {[%emt 0:00:34]} Kg7 {[%emt 0:00:34]} 65. Kd2 {[%emt 0:00:34]} Rc7 {[%emt 0:00:06]} 66. Bb5 { [%emt 0:00:35]} Bb8 {[%emt 0:01:06]} 67. Rc4 {[%emt 0:00:48]} Re7 {[%emt 0:00: 08]} 68. Kc3 {[%emt 0:00:59]} Ba7 {[%emt 0:00:15]} 69. Rf4 {[%emt 0:00:08]} Bb8 {[%emt 0:00:59]} 70. Rf3 {[%emt 0:00:07]} Ba7 {[%emt 0:00:14]} 71. Bc4 { [%emt 0:00:18]} Rc7 {[%emt 0:00:19]} 72. Kb4 {[%emt 0:01:15]} Bc5+ {[%emt 0:00: 31]} 73. Kb5 {[%emt 0:00:38]} Ba7 {[%emt 0:00:04]} 74. Rf4 {[%emt 0:00:08]} Rc5+ {[%emt 0:00:23]} 75. Kb4 {[%emt 0:00:05]} Rc7 {[%emt 0:00:01]} 76. Kc3 { [%emt 0:04:07]} Rd7 {[%emt 0:00:29]} 77. Kb3 {[%emt 0:00:44]} Kf8 {[%emt 0:00: 59]} 78. Kb4 {[%emt 0:00:19]} Kg7 {[%emt 0:00:14]} 79. Kb5 {[%emt 0:00:34]} Rc7 {[%emt 0:00:49]} 80. f3 {[%emt 0:00:07]} f5 {[%emt 0:01:08]} 81. Ba2 {[%emt 0: 01:17]} Rc5+ {[%emt 0:00:21]} 82. Kb4 {[%emt 0:00:27]} Rc6 {[%emt 0:00:08]} 83. Bc4 {[%emt 0:00:24]} Bf2 {[%emt 0:00:48]} 84. Bb5 {[%emt 0:02:09]} Rc7 { [%emt 0:00:13]} 85. Rc4 {[%emt 0:01:10]} Re7 {[%emt 0:00:46]} 86. Bc6 {[%emt 0: 01:21]} Bxg3 {[%emt 0:00:20]} 87. Rd4 {[%emt 0:00:14]} Kf6 {[%emt 0:01:29]} 88. Rd7 {[%emt 0:00:31]} Bf2 {[%emt 0:00:26]} 89. Rxe7 {[%emt 0:00:30]} Kxe7 { [%emt 0:00:02]} 90. Kb5 {[%emt 0:00:57]} Kd8 {[%emt 0:00:37]} 91. Bd5 {[%emt 0: 00:25]} Kc7 {[%emt 0:00:26]} 92. Bf7 {[%emt 0:00:34]} Bxh4 {[%emt 0:00:17]} 93. Bxg6 {[%emt 0:00:03]} f4 {[%emt 0:00:10]} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.4"] [White "Makhnev, Denis"] [Black "Petrosyan, Manuel"] [Result "1/2-1/2"] [ECO "D37"] [WhiteElo "2480"] [BlackElo "2625"] [Annotator "TA"] [PlyCount "99"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,99,10,10,12,10,10,16,11,7,16,12,8,8,8,23,13,10,7,17,15,32,-4,-10,-10, -11,-10,0,-36,-31,-39,0,0,0,-2,-1,-6,-5,-3,-6,-2,0,0,0,-13,-9,-29,-25,-31,-33, -66,-16,-16,-9,-14,-12,-48,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,-65]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 dxc4 5. e3 a6 6. Bxc4 b5 7. Bb3 Bb7 8. O-O {D26: Queen's Gambit Accepted: 4 e3 e6 5 Bxc5 c5 sidelines.} Be7 9. Qe2 Nbd7 10. e4 {next e5 is good for White.} b4 {[#]} 11. e5 $1 bxc3 12. exf6 {[#]} Nxf6 $146 ({Predecessor:} 12... Bxf6 13. bxc3 O-O 14. Rb1 Qc8 15. Ng5 Bxg5 16. Bxg5 Re8 17. Qg4 Nf8 18. Ba4 Rb8 19. Bxe8 Qxe8 {1-0 (32) Stephan, V (2352)-Ruhlmann,H (1861) Rennes 2017}) 13. Ba4+ c6 14. bxc3 {Threatens to win with Rb1.} O-O $1 15. Rb1 Ra7 {[%CAl Ba8a7,Ba7c7,Bc7c3][%mdl 32]} 16. Ne5 c5 17. Nc6 Bxc6 18. Bxc6 Nd5 19. Qc4 cxd4 20. Qxd4 (20. cxd4 {feels hotter.} Rc7 21. Bd2 Qd6 22. Rfc1 Qa3 23. Qf1) 20... Rc7 21. Bxd5 {[#] Hoping for Bb3.} Qxd5 (21... Bf6 {with more complications.} 22. Bg5 Bxg5 23. Bb3 Qf6 24. Qxf6 Bxf6 25. c4 g6) 22. Qxd5 exd5 23. Rd1 Rd8 24. Rb6 Rxc3 25. Rxa6 d4 26. g3 h5 27. h4 Rc2 28. Ba3 Bf6 29. Bd6 Re8 30. Ra3 Ree2 31. Rf3 Rxa2 32. Bc5 $1 Red2 ( 32... Re4 {seems wilder.} 33. Rfd3 Rg4 34. Kf1 Ra4 35. R1d2 Rc4) 33. Rxd2 Rxd2 $11 {[%mdl 4096] Endgame KRB-KRB} 34. Kg2 Kh7 35. Rf5 {The position is equal.} Kg6 36. Rd5 Rd3 37. Bb6 Rb3 38. Ba7 Rc3 39. Bb6 Ra3 40. Kf1 Rb3 41. Ba7 Rb4 42. Ke2 Ra4 43. Bb6 Kh6 44. Kf3 g6 45. Ke4 Ra2 46. Kf3 Rd2 47. Bc5 Kg7 48. Bb4 Rd1 49. Bc5 Rd2 50. Ke4 {Weighted Error Value: White=0.05/Black=0.04} (50. Bb4 $11 Rd1 51. Bc5) 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.5"] [White "Sanal, Vahap"] [Black "Nihal Sarin"] [Result "0-1"] [ECO "C02"] [WhiteElo "2546"] [BlackElo "2620"] [Annotator "TA"] [PlyCount "76"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,76,30,-14,-27,-33,-33,-65,-18,-47,-41,-89,-97,-100,-82,-83,-72,-85, -77,-121,-125,-166,-102,-132,-135,-158,-72,-113,-112,-114,-108,-122,-99,-129, -144,-235,-236,-293,-243,-262,-262,-252,-265,-262,-269,-252,-254,-290,-281, -473,-309,-322,-270,-538,-575,-1154,-1148,-1094,-1011,-1402,-1130,-2296,-1529, -1507,-1476,-29990,-29991]} 1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 Bd7 7. O-O cxd4 {C02: French: Advance Variation.} 8. Re1 {is cutting edge theory.} Nge7 9. h4 h6 {Black is slightly better.} 10. h5 a6 {[#]} 11. Na3 $146 ({Predecessor:} 11. Nbd2 dxc3 12. bxc3 Na5 13. Rb1 Qc7 14. Ba3 Nc8 15. Bxf8 Rxf8 16. Qc1 Nb6 17. Qa3 {1-0 (46) Shevchenko,K (2592)-Borsuk,K (2401) Kremenchuk 2020}) 11... dxc3 12. bxc3 Nc8 13. Nc2 Qc7 14. Bf4 Nb6 15. Rb1 Na4 16. Qd2 Nc5 ({Black should play} 16... Na5 $19 17. Nb4 Qc5) 17. Ne3 {[#] Black should prevent Nxd5!} Qa5 $1 18. Bc2 O-O-O (18... Qxa2 $2 19. Ra1 $18) (18... b5 $142 19. Red1 Rc8) 19. Nd4 Nxd4 ({Weaker is} 19... Qxa2 20. Ra1 $14) 20. Qxd4 Bc6 (20... Qxa2 $2 21. Ra1 $18) 21. Rec1 Nd7 ({Don't blunder} 21... Qxa2 $2 22. Ra1 $18) 22. c4 {White wants to play cxd5.} Bc5 ({But not} 22... Qxa2 $2 23. cxd5 Bc5 24. Qc3 $18) 23. Qa1 (23. Qd1 $17 d4 24. Nf1) 23... d4 $19 24. Nd5 Kb8 25. Rd1 {next Bd2 is good for White.} exd5 26. e6+ Ka8 27. cxd5 Bxd5 { [%mdl 64] Double Attack} 28. exd7 Rxd7 29. Bf5 Re7 30. a4 $2 (30. Rbc1 { is a better defense.}) 30... Rhe8 31. Rbc1 Bc6 32. Bg4 $2 (32. Bd2 Qb6 33. a5) 32... d3 {And now ...Qb4 would win.} 33. Rxd3 Qb4 {( -> ...Re1+)} 34. g3 {[#]} Qe4 $1 {[%csl Gc6][%CAl Re4h1]} 35. Rf3 {[#]} (35. Bf3 Qxd3) 35... Bxf2+ $1 { [%mdl 512]} 36. Kh2 (36. Kxf2 Qe2+ 37. Kg1 Bxf3 $19) 36... Bd4 {Threatens to win with ...Qe2+.} 37. Qa3 f5 38. Rxc6 fxg4 {Weighted Error Value: White=0.98/ Black=0.33} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.6"] [White "Indjic, Aleksandar"] [Black "Basso, Pier Luigi"] [Result "1/2-1/2"] [ECO "D44"] [WhiteElo "2607"] [BlackElo "2550"] [Annotator "TA"] [PlyCount "89"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,89,13,23,20,12,32,31,11,26,27,13,22,18,-6,-8,0,59,54,52,58,53,43,57, 53,52,57,62,61,55,60,57,33,38,42,37,39,40,36,39,37,46,37,76,76,76,76,76,76,76, 76,76,75,75,75,75,54,83,75,75,75,75,75,75,75,75,75,75,61,61,61,61,46,61,46,46, 46,46,46,46,46]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 dxc4 6. a4 b5 7. axb5 {D44: Semi-Slav: Botvinnik System.} cxb5 8. Nxb5 Qb6 9. Na3 ({Don't blunder} 9. Qa4 $2 Bd7 $19) 9... Bxa3 10. Qa4+ Nc6 $1 11. Qxa3 ({Much worse is } 11. Rxa3 Bd7 $15) 11... Ne4 12. Bf4 {[#]} Nb4 $146 {[#] Strongly threatening ...Nc2+.} ({Predecessor:} 12... e5 13. Bxe5 Nxe5 14. Nxe5 Qxd4 15. Qa4+ Kf8 16. Qb4+ Kg8 17. Nd3 a5 18. Qe7 Be6 {0-1 (32) Sharafiev,A (2411)-Bukavshin,I (2539) Saratov 2013}) 13. Rc1 Ba6 (13... O-O $11) 14. Nd2 $14 Nxd2 15. Bxd2 Rb8 16. Qa4+ Ke7 17. Ra1 Bc8 18. Qxa7+ Qxa7 19. Rxa7+ Bd7 $1 20. e3 Nc6 21. Ra2 (21. Ra1 {is more complex.} Rhc8 22. Bc3 Nb4 23. Kd2 Nd5 24. Be2) 21... Nb4 22. Bxb4+ Rxb4 23. Be2 Rhb8 24. O-O Rxb2 25. Rxb2 Rxb2 26. Bxc4 Bb5 27. Bxb5 Rxb5 $16 {[%mdl 4096] Endgame KR-KR} 28. Ra1 e5 29. dxe5 Rxe5 30. Ra7+ Kf6 31. g3 h5 32. Kg2 Rb5 33. h3 g6 34. g4 hxg4 35. hxg4 g5 36. Kf3 Kg6 37. Rd7 Rb2 38. Rd6+ f6 39. e4 {Black must now prevent e5.} Rb3+ {White is slightly better.} 40. Ke2 {Threatens to win with e5.} Kf7 41. Rd3 Rb1 42. Ke3 Rg1 43. f3 Re1+ 44. Kd4 Ke6 45. Rb3 {Weighted Error Value: White=0.04/Black=0.05} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.7"] [White "Agibileg, Uurtsaikh"] [Black "Bernadskiy, Vitaliy"] [Result "0-1"] [ECO "A41"] [WhiteElo "2413"] [BlackElo "2599"] [Annotator "TA"] [PlyCount "96"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,96,20,50,15,42,19,32,20,41,31,30,24,18,-36,-30,-10,39,35,29,39,74,67, 72,32,84,93,86,91,86,69,98,103,97,95,168,148,165,103,106,24,88,102,97,58,50,55, 58,58,41,57,60,62,43,50,41,40,29,17,26,0,-2,-7,-16,-114,-118,-145,-52,-198, -243,-216,-241,-224,-231,-318,-301,-487,-481,-484,-470,-488,-485,-493,-493, -460,-491,-1541,-245,-1197,-570]} 1. d4 d6 2. Nf3 Bg4 3. Qd3 c6 4. Bf4 Nf6 {[#] } 5. Nbd2 $146 ({Predecessor:} 5. h3 Bxf3 6. Qxf3 Nbd7 7. Nd2 g6 8. Nb3 Bg7 9. c3 Qb6 10. e4 a5 11. Rb1 a4 {0-1 (43) Wilfert,E (1436)-Kornath,H (1685) Binz 2012}) 5... e6 6. e4 {A41: 1 d4 d6: Tartakower System and Modern Defence.} Be7 7. Be2 d5 8. h3 {White is slightly better.} Bh5 9. exd5 Nxd5 10. Bh2 a5 11. Nc4 (11. a3 $11) 11... Nb4 $15 12. Qd2 Bg6 (12... Bxf3 $5 13. gxf3 Qxd4 $11) 13. Ne3 $36 {[%mdl 2048] White has some pressure.} O-O 14. O-O c5 15. c3 cxd4 16. Qxd4 (16. cxb4 dxe3 17. Qxe3 axb4 $15) (16. Nxd4 $5 {[%CAl Rc3b4]} N8c6 17. Rad1 $14) 16... Nd3 (16... Bd3 $14 17. Bxd3 (17. cxb4 Bxe2 18. Qxd8 Rxd8 $17) 17... Nxd3) 17. Qc4 $1 $16 {Strongly threatening Rfd1.} Nc5 18. Rfd1 Qb6 19. Ne5 Nc6 20. Nxg6 hxg6 21. a4 Rac8 (21... Qb3 $16) 22. Qb5 $18 Qa7 23. Nc4 (23. Bf3 $1 $18) 23... Ne4 $16 24. Nb6 (24. Qb6 $1 $16) 24... Bc5 (24... Bh4 $1 $11 25. Rf1 (25. Nxc8 Rxc8 26. Rf1 Bxf2+ 27. Kh1 Be3 $11) 25... Rcd8) 25. Nxc8 Rxc8 26. Rd7 Bxf2+ 27. Kh1 Bh4 28. Rf1 {[%CAl Rf1f7]} ({Avoid the trap} 28. Rxb7 $2 Nf2+ 29. Kg1 Nxh3+ 30. Kh1 Nf2+ 31. Kg1 Qe3 $19) 28... Nf2+ {[#]} 29. Rxf2 $1 Qxf2 30. Bg1 Qe1 31. Rd1 Qg3 32. Qxb7 Ne7 33. Bh2 Qf2 34. Ba6 {Bd6 is the strong threat.} Qc2 35. Qf3 Rf8 36. c4 (36. Qe2 $11 Qxa4 37. Rd4 Qa1+ 38. Qd1 Qxd1+ 39. Rxd1) 36... Nf5 $1 $17 37. b3 {[#]} Ne3 $1 {[%mdl 512]} 38. Rg1 {[#]} (38. Rd7 $1 $15 Bf2 39. Bg1 Bxg1 40. Kxg1 Qxb3 41. Kf2) 38... Bf2 $1 $19 ({ And not} 38... Qxb3 39. c5 $11) 39. c5 Bxg1 40. Bxg1 Nf5 41. c6 Ne7 42. Bb7 $2 {[#]} (42. Bc4 {was called for.} Rc8 43. Qe3 Nxc6 44. Qb6) 42... Rd8 $1 43. Qf2 Rd2 44. Qb6 Kh7 45. c7 Rd1 46. Kh2 {Black should prevent Qc5.} Qc1 {aiming for ...Qf4+.} 47. g4 (47. Kh1 $142 Nd5 48. c8=R Qxc8 49. Bxc8 Nxb6 50. Bb7) 47... Rxg1 $2 48. Qf2 $2 (48. c8=Q Nxc8 49. Qxg1 Qb2+ 50. Bg2) 48... Qxc7+ {Never resign too early! Weighted Error Value: White=0.49/Black=0.19} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.8"] [White "Sadikhov, Ulvi"] [Black "Ter-Sahakyan, Samvel"] [Result "1/2-1/2"] [ECO "A20"] [WhiteElo "2490"] [BlackElo "2644"] [Annotator "TA"] [PlyCount "84"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,84,-2,0,0,5,0,0,0,0,16,11,0,6,0,16,18,25,16,16,0,4,20,10,16,22,13,31, 31,35,22,16,22,47,33,30,18,3,0,0,0,0,0,10,-26,-9,-9,0,0,0,0,0,0,0,0,0,0,0,-4,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e5 2. d3 Nf6 3. Nf3 Nc6 4. a3 d5 5. cxd5 Nxd5 6. e3 {A20: English Opening: 1...e5.} a5 7. Nc3 Be7 8. Be2 O-O 9. O-O Nb6 10. b3 Be6 11. Bb2 {[#]} Qd7 $146 ({Predecessor:} 11... f5 12. Qc2 Bf6 13. Nd2 g5 14. Na4 Nxa4 15. bxa4 g4 16. Nb3 Kh8 17. Nc5 Bc8 {1-0 (70) Beim,V (2545) -Lingnau,C (2400) Berlin 1994}) 12. Qc2 f6 13. Rac1 Rfd8 14. Nd2 Bf8 15. Rfd1 Qf7 16. Nc4 Nd5 17. Nb5 Rd7 18. d4 exd4 19. Nxd4 Nxd4 20. Rxd4 Ne7 21. Rxd7 Bxd7 22. e4 Nc6 23. Ne3 Be6 24. Nd5 Bd6 25. Bc4 Kh8 26. f4 Ne7 27. Nxe7 { [#] Bxe6 is the strong threat.The position is equal.} Qxe7 28. Bxe6 Qxe6 29. g3 Re8 30. Re1 b6 31. Kg2 Bc5 32. f5 Qf7 33. Qd3 Bd6 34. a4 h6 35. Re2 Re7 36. h4 Qe8 37. g4 Be5 38. Bc1 Rd7 39. Qb5 Qd8 40. g5 Rd3 41. Be3 Rd1 42. g6 Rd3 { Weighted Error Value: White=0.02/Black=0.03} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.9"] [White "Postny, Evgeny"] [Black "Blohberger, Felix"] [Result "1/2-1/2"] [ECO "E92"] [WhiteElo "2583"] [BlackElo "2490"] [Annotator "TA"] [PlyCount "120"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,120,27,26,25,18,18,19,26,27,16,43,44,51,0,0,0,6,0,0,0,34,47,39,30,27, 25,25,31,23,22,36,24,75,14,13,12,27,40,65,62,60,55,46,46,47,11,83,89,82,85,87, 31,29,27,27,45,60,58,63,25,50,8,13,8,8,8,8,8,8,8,43,43,48,59,79,16,17,4,1,0,0, 0,8,8,8,8,8,8,8,8,8,8,8,0,0,0,0,0,8,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. d5 a5 8. h3 Nh5 9. Nd2 {E92: King's Indian: Classical: 6 Be2 e5: 7 dxe5, 7 Be3 and Petrosian System without 7... Nbd7.} Nf4 10. Bf1 Na6 11. g3 Nh5 12. Be2 {[#]} Bd7 $146 ({Predecessor (2):} 12... Nf6 13. Nb3 a4 14. Nd2 Nc5 15. Rb1 c6 16. b4 axb3 17. axb3 Bd7 18. b4 Na6 19. dxc6 bxc6 20. Kf1 Nc7 {0-1 (40) Holt,C (2549)-Vitiugov,N (2722) Chess.com INT 2020}) 13. Bxh5 gxh5 14. g4 Nb4 15. Nf1 Qh4 $1 {[%CAl Rh5g4]} 16. Ng3 hxg4 17. a3 Na6 (17... gxh3 {looks sharper.} 18. axb4 axb4 19. Rxa8 Rxa8 20. Nce2 h2 ) 18. hxg4 Qxg4 19. Qxg4 Bxg4 20. Nh5 Bxh5 21. Rxh5 Nc5 22. Rb1 Nb3 23. Be3 Rae8 {[#]} (23... Nd4 $11 {keeps the balance.}) 24. Ne2 ({Better is} 24. Nb5 $1 $16) 24... f5 $11 25. exf5 Rf7 (25... a4 {with more complications.} 26. Ng3 e4 27. Ke2 Bf6 28. Rh6 Rf7) 26. Ng3 Ref8 27. Ke2 Nd4+ 28. Bxd4 exd4 29. Kd3 Be5 30. Rf1 Rg7 (30... Bxg3 $11 31. fxg3 Rg7) 31. Ne4 $16 Rgf7 32. Rg1+ Kh8 33. Ng5 (33. b3 $16) 33... Rg7 $14 34. Nf3 Rxg1 35. Nxg1 $11 {[%mdl 4096] Endgame KRB-KRN} Rg8 36. Nf3 Bf6 37. Rh6 Rf8 38. b4 Kg7 39. Rh1 axb4 40. axb4 Ra8 41. Nxd4 Ra3+ 42. Ke4 Rc3 (42... Bxd4 $5 43. Kxd4 Rf3 $11) 43. Ne6+ Kg8 44. c5 Rc4+ 45. Kf3 (45. Kd3 $16 Rxb4 46. cxd6 (46. Nxc7 Rd4+ 47. Ke3 dxc5 $11) 46... cxd6 47. Rh6 Rb3+ 48. Ke4 Rb4+ 49. Kd3 Rb3+ 50. Ke4 Rb4+ 51. Kd3) 45... Rxb4 { The position is equal.} 46. Rc1 {And now c6 would win.} dxc5 47. Rxc5 Be5 48. Nxc7 Rf4+ 49. Ke3 Bd6 {[#]} 50. Nb5 $1 Bxc5+ 51. Kxf4 {KB-KN} Kf7 52. Kg5 { Black must now prevent f6.} Be7+ 53. Kh6 Kf6 54. Kxh7 {Threatens to win with d6.} (54. d6 {is more complex.} Bf8+ 55. Kxh7 Kxf5 56. Kg8 Bxd6 57. Nxd6+ Kf4 58. Nxb7 Kf3 59. Nc5) 54... Kxf5 55. Kg7 (55. f3 {feels hotter.} Ke5 56. d6 Bg5 57. Kg6 Bh4 58. Kf7) 55... Ke5 56. d6 Bxd6 57. Nxd6 Kxd6 58. f4 {White threatens f5 and mate.} Ke6 {( -> ...Kf5)} 59. Kg6 {Threatening mate with f5+.} Ke7 60. Kg7 {f5 would kill now.} Ke6 $1 {[%CAl Re6f5] Weighted Error Value: White=0.10/Black=0.07} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.10"] [White "Nikitenko, Mihail"] [Black "Fier, Alexandr"] [Result "1-0"] [ECO "A38"] [WhiteElo "2472"] [BlackElo "2569"] [Annotator "TA"] [PlyCount "87"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,87,25,25,17,25,-18,-27,-30,85,82,83,80,109,107,107,100,117,101,133, 91,141,141,138,140,141,135,145,109,172,169,177,172,171,171,170,173,175,175,170, 170,226,221,268,260,339,328,372,359,383,378,373,421,634,617,612,620,615,604, 543,453,671,598,664,664,664,664,647,655,641,645,573,505]} 1. c4 g6 2. Nc3 c5 3. g3 Bg7 4. Bg2 Nc6 5. Nf3 Nf6 6. d4 cxd4 7. Nxd4 O-O 8. O-O Qa5 {now scores much better than the old 8...Nxd4.} 9. Nb3 Qh5 10. c5 {A39: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6 6 0-0 0-0 7 d4.} a5 11. Na4 d5 {[#]} 12. Nb6 $146 {Black has an edge.} ({Predecessor:} 12. cxd6 Bh3 13. dxe7 Nxe7 14. e4 Ng4 15. f3 Bxg2 16. fxg4 Qb5 17. Re1 Bh3 18. Nc3 {1/2-1/2 (53) Von Herman,U (2340)-Nyback,T (2572) Germany 2017}) 12... Bg4 (12... Ra6 $11 {keeps the balance.}) 13. f3 $16 {Black is on the road to losing.} (13. Nxa8 $2 Bxe2 14. Qe1 Rxa8 $19) 13... Bh3 14. Nxa8 Bxg2 15. Kxg2 Rxa8 16. a4 Qe5 17. Qd3 Qc7 18. Qb5 d4 19. Rd1 e5 20. e4 h5 21. Bd2 h4 22. Nc1 Qd7 (22... Bf8 $16 {is a better defense.} 23. gxh4 Kg7) 23. Nd3 $18 (23. gxh4 $6 Nxe4 24. Nb3 Nf6 $11) 23... Kh7 24. b4 axb4 25. Nxb4 (25. gxh4 Nxe4 26. fxe4 Qg4+ 27. Kh1 Qf3+ 28. Kg1 Qg4+ 29. Kf1 (29. Kh1 Qf3+ 30. Kg1 Qg4+ {[%mdl 64] Double Attack} 31. Kf1 Qh3+ 32. Kg1 Qg4+ $11 {[%mdl 64] Double Attack}) 29... Qh3+ 30. Kg1 Qg4+ 31. Kh1 Qf3+ 32. Kg1 Qg4+ $11) 25... Bh6 26. Bxh6 (26. gxh4 Nxe4 27. fxe4 (27. Bxh6 Nc3 $15 {[%mdl 64] Double Attack}) 27... Qg4+ 28. Kh1 Qxe4+ 29. Kg1 Qg4+ 30. Kh1 Qf3+ 31. Kg1 Nxb4 $11) 26... Kxh6 27. Nd3 ({Resist} 27. gxh4 $6 Nxb4 28. Qxb4 Nh5 $14) 27... Kg7 28. Rdb1 ({Don't take} 28. gxh4 $6 Ng4 $16) 28... Rb8 (28... h3+ $142 29. Kh1 Ra7) 29. a5 g5 30. Nf2 g4 31. Qe2 ({Don't play} 31. gxh4 gxf3+ 32. Kh1 d3) 31... hxg3 32. hxg3 gxf3+ 33. Qxf3 Ra8 34. Rb6 Qe6 (34... Ra7 $142 35. a6 Rxa6 36. Raxa6 bxa6) 35. Rxb7 Rxa5 36. Rxa5 Nxa5 37. Rb6 Nc6 38. Qb3 Qc8 ( 38... Qxb3 $142 39. Rxb3 Ng8) 39. Qb5 Nd8 40. Rb8 Qc6 41. Qxc6 Nxc6 42. Rb6 Nd8 43. c6 {[#] Threatens to win with c7.} Ne6 44. Rb5 {Weighted Error Value: White=0.06/Black=0.38} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.11"] [White "Pranav Vijay"] [Black "Suleymanli, Aydin"] [Result "1-0"] [ECO "B11"] [WhiteElo "2265"] [BlackElo "2560"] [Annotator "Shahid"] [PlyCount "91"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] [TimeControl "40/5400+30:900+30"] {[%evp 0,91,16,10,71,75,52,37,83,30,41,26,56,38,23,0,21,-10,32,59,21,1,60,83, 54,77,65,65,67,78,126,18,6,-57,56,-101,-83,-20,-31,-43,-30,-20,-15,-36,-7,-15, -19,-18,-11,-28,7,-23,-14,-46,55,0,16,8,10,12,46,-8,424,55,56,90,83,91,90,8,81, 42,55,35,64,76,94,62,162,121,155,332,332,380,337,397,332,318,373,365,772,886, 886,781]} 1. e4 {[%emt 0:00:11]} c6 {[%emt 0:00:00]} 2. Nf3 d5 {[%emt 0:00:00]} 3. Nc3 {[%emt 0:01:40]} Bg4 4. h3 {[%emt 0:00:09]} Bxf3 {[%emt 0:00:35]} 5. Qxf3 {[%emt 0:00:09]} e6 {[%emt 0:00:35]} 6. d3 {[%emt 0:03:23]} Nd7 {[%emt 0: 01:08]} 7. Bd2 {[%emt 0:03:13]} Qb6 {[%emt 0:01:12]} 8. O-O-O {[%emt 0:10:34]} a5 {[%emt 0:05:33]} 9. d4 {[%emt 0:19:59]} Bb4 {[%emt 0:08:24]} 10. a3 { [%emt 0:00:30]} Ngf6 {[%emt 0:00:30]} 11. axb4 {[%emt 0:00:30]} axb4 {[%emt 0: 00:30]} 12. Nb1 {[%emt 0:00:30]} Nxe4 {[%emt 0:00:30]} 13. Be1 {[%emt 0:00:30]} c5 {[%emt 0:00:30]} 14. Bd3 {[%emt 0:00:30]} Nd6 {[%emt 0:00:30]} 15. dxc5 { [%emt 0:00:30]} Nxc5 {[%emt 0:00:30]} 16. Kd2 {[%emt 0:00:30]} Rc8 {[%emt 0:00: 30]} 17. Qf4 {[%emt 0:00:30]} b3 {[%emt 0:14:14]} 18. Ke2 {[%emt 0:30:52]} bxc2 {[%emt 0:02:12]} 19. Bxc2 {[%emt 0:00:34]} Qxb2 {[%emt 0:11:58]} 20. Qd2 { [%emt 0:01:35]} Qb5+ 21. Bd3 Nxd3 {[%emt 0:03:42]} 22. Qxd3 {[%emt 0:00:43]} Qb2+ 23. Kf1 {[%emt 0:02:12]} O-O {[%emt 0:03:39]} 24. h4 {[%emt 0:02:08]} Rc2 {[%emt 0:07:03]} 25. Rh3 {[%emt 0:00:30]} Ne4 {[%emt 0:00:30]} 26. Rf3 { [%emt 0:00:30]} Nc5 {[%emt 0:00:30]} 27. Qa3 {[%emt 0:00:30]} Qb5+ {[%emt 0:00: 30]} 28. Kg1 {[%emt 0:00:30]} Rc4 {[%emt 0:00:30]} 29. Rg3 {[%emt 0:00:30]} f6 {[%emt 0:00:30]} 30. Qf3 {[%emt 0:00:30]} d4 {[%emt 0:00:30]} 31. h5 {[%emt 0: 00:30]} Qd7 {[%emt 0:00:30]} 32. h6 {[%emt 0:00:30]} g6 {[%emt 0:00:30]} 33. Na3 {[%emt 0:00:30]} Ra4 {[%emt 0:00:30]} 34. Nc2 {[%emt 0:00:30]} Rc4 { [%emt 0:00:30]} 35. Nb4 {[%emt 0:00:30]} b5 {[%emt 0:00:30]} 36. Nd3 {[%emt 0: 00:30]} Na4 {[%emt 0:00:30]} 37. Bb4 {[%emt 0:00:30]} Rf7 {[%emt 0:00:30]} 38. Ra1 {[%emt 0:00:30]} Qc8 {[%emt 0:00:30]} 39. Qe4 {[%emt 0:00:30]} Ra7 { [%emt 0:00:30]} (39... Qe8) 40. Rxg6+ {[%emt 0:00:30]} hxg6 {[%emt 0:00:30]} 41. Qxg6+ {[%emt 0:15:30]} Kh8 {[%emt 0:15:30]} 42. Be7 {[%emt 0:00:30]} Rxe7 { [%emt 0:00:30]} 43. Qxf6+ {[%emt 0:00:30]} Kg8 {[%emt 0:00:30]} 44. Qxe7 { [%emt 0:00:30]} Qc7 {[%emt 0:00:30]} 45. Qxe6+ {[%emt 0:00:30]} Kh7 {[%emt 0: 00:30]} 46. Qf5+ {[%emt 0:00:30]} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.12"] [White "Aleksandrov, Aleksej"] [Black "Kourkoulos-Arditis, Stamatis"] [Result "1-0"] [ECO "A05"] [WhiteElo "2529"] [BlackElo "2485"] [Annotator "TA"] [PlyCount "103"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,103,0,0,-9,0,0,0,0,0,-25,-22,-17,-15,-28,-11,-31,10,15,12,-9,25,-12,0, -12,0,-60,-45,-44,-38,-54,-54,-33,-19,-15,0,0,0,0,0,0,0,-76,-85,-41,-38,-104, -95,-363,-361,-329,-328,-400,-358,-395,-388,-335,-218,-310,0,-321,0,0,0,0,0,0, 54,0,43,47,137,136,114,97,277,279,280,299,260,0,0,0,293,288,346,328,285,0,295, 250,244,220,362,356,763,716]} 1. Nf3 Nf6 2. e3 g6 3. b4 Bg7 4. Bb2 O-O 5. Be2 d6 6. d3 {A05: Réti Opening: 1 Nf3 Nf6.} e5 {[#]} 7. Nfd2 $146 ({Predecessor: } 7. O-O Nc6 8. a3 Ne8 9. Nbd2 f5 10. Ne1 f4 11. Bg4 Bxg4 12. Qxg4 Nf6 13. Qe2 Nh5 14. c4 Bh6 15. Nef3 Ne7 16. e4 g5 17. h3 Nf6 18. Nh2 Qd7 {1/2-1/2 (18) Mamuzic,D (1543)-Kovacic,S (1656) Subotica 2019}) 7... Re8 8. c4 {The position is equal.} c6 9. Na3 d5 10. O-O Nbd7 11. Re1 Bf8 12. Nc2 Bd6 13. a4 a5 14. b5 Nf8 15. Nb1 dxc4 16. d4 {Strongly threatening dxe5.} e4 17. Nba3 (17. Nca3 $11) 17... c3 $15 18. Bxc3 Nd5 19. Bb2 Bc7 20. Nc4 cxb5 (20... Ne6 {is more complex. } 21. Rc1 cxb5 22. axb5 b6 23. N2a3 Bb7) 21. axb5 Bf5 (21... Be6 {with more complications.} 22. N2a3 Nd7 23. Nb1 Qg5 24. Qd2 b6) 22. N2a3 Nd7 {[%CAl Bf8d7, Bd7f6,Bf6g4][%mdl 32]} 23. Qd2 h5 24. Rec1 b6 25. Rd1 (25. Nb1 $11) 25... Qg5 $17 (25... Qh4 26. Ne5 $11) 26. Ne5 N7f6 $40 {[%mdl 128] Black is up to no good.} 27. Qe1 (27. Nac4 $15) 27... Ng4 {Threatens to win with ...Ndxe3!} 28. Rac1 $2 {[%mdl 8192]} (28. Bc4 $17 Rad8 29. Nxg4 Bxg4 30. Rdc1) 28... Bxe5 $19 (28... Ngxe3 29. fxe3 Nxe3 30. g3 $11) 29. dxe5 Ndxe3 (29... Ngxe3 30. fxe3 Nxe3 31. Bf1 $16) 30. Bxg4 {[#]} Nxg2 {[%mdl 512]} 31. Kxg2 Bxg4 32. Kf1 Bh3+ 33. Ke2 Bg4+ {[%mdl 64] Skewer} ({Less strong is} 33... Qg4+ 34. Kd2 $15) 34. Kf1 {[#]} Bf3 $2 ({Black should play} 34... Rad8 $1 $19 {( -> ...Bh3+)} 35. Rd4 Bh3+ 36. Ke2 Rxd4 37. Bxd4 Rd8) 35. Qe3 $11 Qg2+ {[%mdl 64] Double Attack} 36. Ke1 {Rd6 is the strong threat.} Bxd1 37. Rxd1 Rad8 ({Black should try} 37... Qxh2 $11 38. Nc4 a4) 38. Rd6 $14 {[%mdl 1024] White has compensation.} Qg1+ ( 38... Qxh2 $5 {[%CAl Rd8d6]} 39. Nc4 Qg1+ 40. Kd2 Qf1 $11) 39. Ke2 Qg4+ {[#]} ( {Better is} 39... Qxh2 $14 40. Nc4 Qg2) 40. Kd2 $1 $16 Rc8 41. Rxb6 Qf5 $2 ( 41... Qg1 $16 {was worth a try.}) 42. Rf6 $18 Red8+ 43. Rd6 Re8 44. Rd5 (44. Ke1 $18) 44... Red8 $11 45. Rd6 {[%mdl 8192]} (45. Rd4 $11) 45... Re8 $1 $18 46. b6 Kh7 47. Rf6 Red8+ 48. Rd6 Re8 $1 49. Nb5 Rxe5 50. Nc7 ({Stronger than} 50. Bxe5 Qxe5 51. Qb3 Qf5 $11) 50... Rc5 (50... Re7 $142 51. Qd4 e3+ 52. fxe3 Qf2+ 53. Kd1 Qf1+ 54. Kc2 Rexc7+ 55. bxc7 Rxc7+ 56. Kb3 Qb5+ 57. Ka2 Qc4+ 58. Qxc4 Rxc4) 51. Ke1 Rc4 $2 (51... Rc2 52. Qd4 Rxb2 53. Qxb2 e3 54. fxe3 Qe4) 52. Nd5 {Never resign too early! Weighted Error Value: White=0.34/Black=0.26} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.13"] [White "Gasimov, Parviz"] [Black "Warmerdam, Max"] [Result "0-1"] [ECO "B90"] [WhiteElo "2353"] [BlackElo "2535"] [Annotator "TA"] [PlyCount "72"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,72,26,7,30,31,37,34,27,22,20,0,0,0,0,-81,0,-70,-65,-68,-76,-79,-76, -76,-79,-128,-122,-172,-153,-183,-175,-174,-164,-170,-148,-128,-127,-133,-114, -114,-107,-140,-150,-358,-361,-387,-400,-460,-455,-463,-476,-495,-505,-494, -467,-466,-449,-547,-545,-704,-685,-870,-868]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3 {7.Be2 is the hot move.} h5 {B80: Sicilian Scheveningen: 6 g3 and 6 Be3, including English Attack.} 8. Qd2 Be7 9. O-O-O b5 {[%CAl Bb7b5,Bb5b4][%mdl 32] White is slightly better.} 10. Kb1 Bb7 11. Bd3 Nbd7 12. Rhe1 Rc8 13. Bg5 {[#]} (13. a3 $11) 13... b4 $1 $17 {[%CAl Rb4c3]} 14. Nce2 {[#]} (14. Na4 $1 $11) 14... Nxe4 $1 $15 15. Bxe4 (15. Qxb4 Bxg5) 15... Bxg5 16. Qxb4 Bxe4 17. fxe4 Qc7 18. Nc3 O-O {[#]} 19. Nb3 $146 {[#]} ({ Predecessor:} 19. Rd3 Rb8 20. Qa3 Ne5 21. Rh3 Nc4 22. Qxa6 Bf6 23. Ndb5 Qc5 24. Rd1 Rb6 25. Qa4 Rfb8 26. b3 Rxb5 27. Nxb5 Rxb5 28. Qa8+ Kh7 29. e5 Qxe5 30. c3 {0-1 (30) Chrzaszcz,M (2014)-Antolak,J (2313) Katowice 2020}) 19... Bf4 20. g3 Be5 21. Rd3 Rb8 22. Qa5 Qb7 23. Nd1 Rfc8 24. Qd2 Nb6 {...Nc4 is the strong threat.} 25. Na5 Qd7 26. Rb3 Rc5 27. Qb4 $2 {Now White is beyond hope.} (27. Rb4 $17) 27... Qc7 $19 28. Qd2 Rc8 {[%CAl Rc5c2]} 29. Re2 Na4 {Black is clearly winning.} 30. Nb7 Rb5 31. Rxb5 axb5 32. Na5 {[#]} Bxb2 $1 {[%mdl 512] And now ...Bc3 would win.} 33. Nb3 Be5 34. Re3 Nb6 {aiming for ...Nc4!} 35. Re2 Nc4 36. Qb4 Qa7 {Weighted Error Value: White=0.35/Black=0.03} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.14"] [White "Ozenir, Ekin Baris"] [Black "Nenezic, Marko"] [Result "0-1"] [ECO "A45"] [WhiteElo "2309"] [BlackElo "2531"] [Annotator "TA"] [PlyCount "150"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,150,9,18,20,27,0,43,45,43,41,37,38,37,39,36,39,39,35,38,16,16,-6,0, -23,-23,-21,-27,-33,-17,-66,-66,-71,-63,-92,-90,-283,-140,-135,-139,-156,-163, -163,-155,-156,-96,-95,-32,-22,-27,-45,-38,-45,-40,-46,-45,-47,-47,-48,0,-33, -10,-14,-11,-12,-14,-20,0,-20,-7,-7,-7,-15,-7,-17,-17,-28,-7,-8,-8,-8,-8,-9,-8, -29,-33,-166,-185,-178,-98,-143,-126,-142,-30,-31,-24,-16,-16,-44,-75,-44,-50, -94,-94,-196,-196,-182,-176,-225,-227,-352,-297,-385,-306,-787,-755,-695,-137, -150,-146,-145,-143,-202,-74,-372,-350,-1490,-1798,-1838,-1562,-1472,-1068, -2078,-1808,-5073,-4741,-29980,-29981,-29981,-29979,-29981,-29982,-29976, -29980]} 1. d4 Nf6 2. Bg5 c5 3. Bxf6 gxf6 4. d5 f5 5. c4 Bg7 6. Nc3 {A45: Trompowsky Attack.} Qa5 7. Qc2 {[#]} a6 $146 ({Predecessor:} 7... Bxc3+ 8. bxc3 d6 9. Nf3 Nd7 10. e3 Rg8 11. g3 Nf6 12. Nd2 Bd7 13. Bg2 O-O-O {1/2-1/2 (25) Yakubboev,N (2512)-Adhiban,B (2671) Hamedan 2018}) 8. e3 {White is slightly better.} b5 9. Bd3 e6 10. Nge2 {[%CAl Rc4b5]} b4 11. Nd1 b3+ 12. Qd2 Qxd2+ 13. Kxd2 bxa2 14. Ndc3 d6 15. Bc2 Nd7 16. Ba4 Ke7 17. Bxd7 Bxd7 18. Rxa2 Rhb8 19. Kc2 Rb4 20. b3 a5 $1 21. dxe6 fxe6 22. Na4 $2 (22. Rb1 $17 {keeps fighting.}) 22... Rab8 (22... d5 $1 $19 {[%CAl Rd5c4]} 23. Nxc5 dxc4) 23. Rb1 $17 Bc6 24. f3 Bh6 25. Nac3 Rg8 $1 {[%CAl Rg8g2]} ({Don't take} 25... Bxe3 26. Rxa5 f4 27. Ne4 $17) 26. g3 Bxf3 (26... Bxe3 $142 27. Rxa5 Bxf3) 27. Nf4 Rgb8 ({Black should try} 27... Ra8 $17 {White must now prevent ...a4!} 28. Rba1 Rab8) 28. Rxa5 $15 Bg7 29. Ra3 R4b6 30. Ra7+ R8b7 31. Ra5 Bc6 32. Ra3 Be5 33. Nd3 Bg7 34. Nf4 Rb8 35. Ra7+ R6b7 36. Rba1 Be4+ 37. Kd2 Bc6 (37... Kd7 {seems wilder.} 38. R1a6 Bc6 39. Na4 Bh6 40. Nb6+ Ke7) 38. R1a6 Rxa7 39. Rxa7+ Rb7 40. Ra3 Bf6 41. Kc2 Bf3 42. Ra6 Rd7 43. Kd2 Kf7 44. Nb5 Be7 45. Ke1 Be4 46. Kd2 d5 47. cxd5 ({ Better is} 47. Ke2 $15) 47... e5 $19 ({Inferior is} 47... exd5 48. Nc3 $11) 48. Ne2 Rxd5+ (48... Bxd5 $19 49. Ra7 Rxa7 50. Nxa7 Bxb3) 49. Ke1 Bc2 50. Nbc3 Rd7 ({Weaker is} 50... Bxb3 51. Nxd5 Bxd5 52. Nc3 $16) ({Black should play} 50... Rd3 $17 51. Ra7 Bxb3) 51. Nc1 $11 e4 {White should prevent ...Bf6.} 52. Ra2 Bd3 53. Rd2 c4 54. bxc4 Bb4 55. N1a2 Ba5 56. Rb2 (56. Kd1 $17) 56... Bxc4 $19 { And now ...Rd3 would win.} 57. Kf2 Rd3 $1 58. Ne2 Bd2 59. Rb7+ (59. Kg2 $142) 59... Ke8 60. Nac1 Rxe3 {...Rf3+ is the strong threat.} 61. Rb8+ $2 (61. Rc7 Rf3+ 62. Kg2) 61... Kd7 62. Rb7+ Kc8 $2 (62... Kd6 $19 {is more deadly. aiming for ...Rf3+.} 63. Rb6+ Kc5) 63. Rb2 $17 Rf3+ 64. Kg2 Bxc1 65. Rc2 {[#]} (65. Nxc1 $17 {was necessary.} Bf1+ 66. Kg1) 65... Be3 (65... Kd7 $1 $19 66. Nxc1 Bd5) 66. Rxc4+ $2 {[%mdl 12288] Endgame KRB-KRN} (66. Nd4 $17 {is a better defense.} Bxd4 67. Rxc4+ Kd8 68. Rxd4+ Ke7 69. g4) 66... Kd7 $19 {Threatens to win with ...Rf2+.} 67. Nd4 $2 (67. Nc3 Rf2+ 68. Kg1 Re2+ 69. Kf1) 67... Rf2+ 68. Kh3 Bxd4 69. Rxd4+ {KR-KR} Ke6 70. g4 Ke5 {( -> ...fxg4+)} 71. Rd7 f4 72. Rxh7 e3 {Black mates.} 73. Re7+ Kf6 74. Re8 e2 75. g5+ Kf7 {Weighted Error Value: White=0.22/Black=0.15} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.15"] [White "Damljanovic, Branko"] [Black "Aditya Mittal"] [Result "0-1"] [ECO "A20"] [WhiteElo "2501"] [BlackElo "2438"] [Annotator "TA"] [PlyCount "88"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,88,-4,0,8,12,-10,-16,-29,-30,-40,-47,-39,32,-2,2,6,80,-15,73,66,66, 66,96,77,73,64,125,54,44,43,81,16,22,32,23,-13,27,14,18,24,24,26,30,21,28,10, 72,-14,-26,-116,-118,-352,-352,-373,-318,-288,-290,-512,-477,-522,-519,-612, -610,-502,-432,-428,-380,-365,-359,-828,-775,-767,-767]} 1. c4 e5 2. g3 Nf6 3. Bg2 d5 4. cxd5 Nxd5 5. Nc3 Nb6 6. Nf3 Nc6 7. b3 Be7 8. Bb2 O-O 9. O-O f5 10. d3 {A29: English Opening: Four Knights Variation with 4 g3.} Be6 11. e3 Bf6 12. Ne2 {The position is equal.} Qd6 13. d4 e4 14. Nd2 {[#]} a5 $146 (14... Nb4 $15 ) ({Predecessor:} 14... Rfd8 15. Nf4 Bf7 16. Rc1 Ne7 17. Nc4 Nxc4 18. bxc4 c5 19. Ba3 Qa6 20. Bxc5 Bxc4 {1/2-1/2 (68) Rausch,R (1660)-Hertwig,C (1591) Berlin 2004}) 15. Nf4 (15. g4 $5) 15... Bf7 16. Rc1 Ne7 (16... Bg5 $11) 17. Rc5 (17. g4 $16 g6 18. Bxe4) 17... a4 (17... Ned5 $11 {keeps the balance.}) 18. g4 $1 $16 {[%CAl Rg4f5]} axb3 {And now ...Na4 would win.} 19. gxf5 Na4 {[%mdl 64] Double Attack} 20. Nxe4 Nxb2 21. Qg4 h5 {[#]} 22. Nxh5 (22. Qf3 $1 $16 Qb6 23. axb3) (22. Qg3 Qb6 23. axb3) 22... Bxh5 $14 23. Qxh5 Qd7 {[#] Threatens to win with ...Nd3.} 24. axb3 ({White should try} 24. Qe2 $1 $16 {[%CAl Re2b2]}) 24... Nd3 $11 25. Rc3 Nb4 26. Rc4 (26. Nc5 {with more complications.} Qxf5 27. Qxf5 Nxf5 28. Rc4 Nc6 29. Nxb7 Na5 30. Rxc7 Nxb7 31. Bxb7 Ra2 32. Rfc1) 26... Nbc6 ( 26... Na6 {is interesting.} 27. Ra4 c6 28. Rfa1 Qe8 29. Qxe8 Raxe8 30. Nd6 Rb8) 27. Nc5 Qxf5 28. Qxf5 Nxf5 29. Nxb7 Nce7 30. Rxc7 Ra2 31. Nc5 Nh6 (31... Bh4 $11) 32. Rd7 ({White should play} 32. Nd7 $16 Re8 33. Nxf6+ gxf6 34. Bf3) 32... Bh4 {[%CAl Rf8f2]} 33. Bh3 (33. Ne4 $11 {remains equal.}) 33... Rfxf2 $17 34. Ne6 $2 {[#] This move loses the game for White.} (34. Rxf2 $17 Bxf2+ 35. Kg2) 34... Ng4 $1 $19 {[%mdl 512]} 35. Rxf2 (35. Bxg4 $2 {leads to mate.} Rg2+ 36. Kh1 Rxh2+ 37. Kg1 Rag2#) (35. Rd8+ Kh7) 35... Nxf2 36. Rd8+ Kh7 37. Nf8+ $2 ( 37. Bf1) 37... Kh6 38. Rd6+ g6 39. Bd7 Ne4 40. Rb6 Ng5 {( -> ...Nf3+)} 41. Bg4 Bf2+ 42. Kf1 Bxe3 43. Nxg6 $2 (43. h4 Rf2+ {[%mdl 64] Double Attack} 44. Ke1 Rxf8 45. hxg5+ Kxg5 46. Bd7) 43... Nxg6 44. h4 Ne4 {Weighted Error Value: White=0.49/ Black=0.26} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.16"] [White "Kuzubov, Yuriy"] [Black "Bharath Subramaniyam H"] [Result "1-0"] [ECO "B40"] [WhiteElo "2653"] [BlackElo "2437"] [Annotator "TA"] [PlyCount "111"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,111,9,18,20,23,26,28,14,33,28,34,35,39,22,24,20,37,21,22,49,29,50,69, 58,59,58,56,58,69,56,60,66,56,76,110,97,115,105,99,106,155,141,154,156,172,172, 169,167,217,217,213,218,248,197,196,187,223,207,215,202,240,230,211,187,187, 197,252,224,228,141,291,271,287,288,292,291,265,250,278,299,403,403,395,363, 575,559,845,820,818,817,895,978,585,858,814,800,1785,1741,1785,567,1837,1780, 1389,1121]} 1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. Qe2 d5 6. exd5 {B40: Sicilian: 2...e6, Unusual lines.} Nxd5 7. O-O Be7 8. Rd1 {White has an edge.} Bf6 9. Nc3 O-O 10. Ne4 Be7 11. d4 cxd4 12. Nxd4 Nxd4 13. Rxd4 Nf4 {[#]} 14. Nf6+ $1 Bxf6 15. Rxf4 Bg5 {[#]} 16. Rf3 $146 ({Predecessor:} 16. Rb4 Bxc1 17. Rxc1 Qe7 18. a3 Re8 19. Rd1 e5 20. Rb5 f5 21. Qc4+ Kh8 22. Qc3 {1-0 (35) Lin,C (2520)-Severino,S (2349) Olongapo City 2015}) 16... Bd7 17. Rd3 {Threatens to win with Bxg5.} Bxc1 18. Rxc1 {Strongly threatening Qd1.} Qc7 19. Rc3 Qa5 20. Ra3 Qc7 21. Qe3 a6 22. Rc3 Bc6 23. Bxc6 bxc6 24. Qc5 Rfc8 25. Rd1 {[%CAl Bc1d1, Bd1d6,Bd6c6][%mdl 32]} h6 26. Rd6 Qb7 27. Rxc6 Rd8 28. Rb3 Rd1+ 29. Kg2 Qd7 30. Rc7 Qa4 31. Qc6 Qxc6+ 32. Rxc6 $18 {[%mdl 4096] Endgame KRR-KRR} a5 33. Rb7 Rd5 34. c4 Rf5 35. Rcb6 Kh7 36. Rb3 Rc8 {[#]} 37. Rc3 g5 (37... Rfc5 $142 38. Rxf7 Rxc4) 38. Rb5 Kg6 39. Ra3 Rf6 {[#] This costs Black the game.} (39... Rxc4 $16 40. Raxa5 (40. Rbxa5 Rb4 $16) 40... Rxb5 41. Rxb5 Ra4) 40. c5 $1 (40. Raxa5 Rd8 $11) 40... Rd8 41. Rf3 ({Not} 41. Rbxa5 Rd2 $16) 41... Rd2 42. c6 ({Weaker is} 42. Rxa5 Rxb2 43. a4 Rc2 $16) 42... Rc2 43. Rxa5 Rxc6 44. b4 g4 45. Rxf6+ Kxf6 {KR-KR} 46. a4 {[%CAl Ba2a4,Ba4a5,Ba5a6][%mdl 32]} Rc4 (46... Rc7 {was necessary.} 47. Rc5 Ra7) 47. Rb5 {White is clearly winning.} Rc2 48. a5 Ra2 49. Rb6 Ke7 50. a6 Kd7 51. b5 Kc8 52. Rb7 f5 53. Re7 Kb8 54. Rxe6 h5 55. Rf6 Ka7 56. Rxf5 {Weighted Error Value: White=0.05/Black=0.26} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.17"] [White "Diermair, Andreas"] [Black "Markus, Robert"] [Result "1/2-1/2"] [ECO "A46"] [WhiteElo "2455"] [BlackElo "2600"] [Annotator "TA"] [PlyCount "33"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,33,33,38,23,45,17,14,17,22,16,17,18,21,16,26,13,17,21,20,19,68,66]} 1. d4 Nf6 2. Nf3 d6 3. g3 g6 4. Bg2 Bg7 5. O-O O-O 6. b3 c6 7. Bb2 Qa5 8. Qd2 { A49: 1 d4 Nf6 2 Nf3 g6 3 g3: Anti-King's Indian systems.} Qh5 9. Qg5 Qxg5 10. Nxg5 {The position is equal.} Na6 11. c4 {[#]} h6 $146 ({Predecessor:} 11... Rb8 12. Nd2 c5 13. d5 h6 14. Ngf3 Ne8 15. Bxg7 Nxg7 16. e4 e5 17. dxe6 Bxe6 { 1-0 (65) Gaehwiler,G (2363)-Vezzani,S (2121) Ortisei 2016}) 12. Nf3 Bf5 13. Nc3 Ne4 14. Rfd1 Nxc3 15. Bxc3 Be4 16. Rac1 Rac8 17. Bh3 {Weighted Error Value: White=0.09/Black=0.06} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.18"] [White "Kilgus, Georg"] [Black "Puranik, Abhimanyu"] [Result "1/2-1/2"] [ECO "D04"] [WhiteElo "2452"] [BlackElo "2589"] [Annotator "TA"] [PlyCount "106"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,106,25,17,16,25,0,0,-12,0,0,0,0,0,0,89,103,115,110,101,86,100,112,91, 87,81,98,125,113,164,156,166,166,188,97,95,104,104,94,203,194,152,114,204,218, 212,208,203,209,421,379,410,405,409,404,397,375,483,114,117,116,112,114,112, 104,81,105,114,87,99,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0]} 1. Nf3 d5 2. d4 Nf6 3. e3 g6 4. c4 c6 5. h3 Bg7 6. Bd3 {D70: Grünfeld: Unusual White 3rd moves (met by ...d5).} c5 {[#]} 7. cxd5 $146 ({Predecessor:} 7. Nc3 O-O 8. O-O cxd4 9. exd4 dxc4 10. Bxc4 Nc6 11. Bf4 Na5 12. b3 Nxc4 13. bxc4 b6 14. Be5 Bb7 15. d5 Rc8 16. Qb3 e6 17. Rad1 exd5 18. cxd5 Rc5 19. Rfe1 { 1/2-1/2 (19) Jones,P (2139)-Vyzharov,I (2164) LSS email 2008}) 7... Nxd5 8. e4 Nb4 9. Bc4 Bxd4 10. Bh6 (10. O-O) 10... Bxb2 11. Qb3 Nd3+ 12. Ke2 $1 $16 ({ Worse is} 12. Bxd3 Bxa1 13. O-O Bd4 $17) 12... Be6 13. Bxe6 fxe6 {[#]} 14. Nbd2 $1 $36 {Black must now prevent Rab1. Black is under strong pressure.} Bxa1 15. Rxa1 Nc6 {...Nd4+ is the strong threat.} 16. Qxd3 Qxd3+ 17. Kxd3 Kd7 18. Nc4 { [%mdl 1024] White has strong compensation.} b5 (18... Rhd8 $16) 19. Nce5+ $18 Kc7 20. Be3 Rhc8 21. Nf7 (21. a4 $18) 21... c4+ 22. Kc3 Kb7 23. N3g5 a5 (23... Rab8 $16) 24. Nxe6 b4+ 25. Kc2 a4 (25... Ka6 $16) 26. Nc5+ Kc7 27. Rd1 Ra5 28. Ng5 e5 $2 (28... Rb8 29. Nge6+ (29. Nxh7 b3+ 30. Kb2 bxa2+ 31. Kxa2 Nb4+ 32. Ka3 Nc2+ 33. Ka2 Nb4+ 34. Ka3 Nc2+ 35. Ka2 Nb4+ $11) 29... Kc8) 29. Nge6+ Kb8 30. Nd7+ Kb7 31. Nb6 Nd4+ 32. Bxd4 b3+ 33. axb3 $2 (33. Kd2 $18 {has better winning chances.} Ra6 34. Nxc8 Rxe6 35. Bb2) 33... axb3+ $16 34. Kb1 c3 {[#]} 35. Bxc3 Rxc3 36. Nd5 Rc2 37. Rd3 Rxf2 38. Rxb3+ Kc6 39. g4 ({Better is} 39. Rb6+ $16 Kd7 40. Ne3) 39... Rb5 $11 {The position is equal.} 40. Ne7+ (40. Nd8+ {is interesting.} Kc5 41. Rxb5+ Kxb5 42. g5 Kc5 43. Nf6) 40... Kb6 $1 41. Nc8+ (41. Rxb5+ {with more complications.} Kxb5 42. Ng5 Kc4 43. Ng8 Kd4 44. Nh6) 41... Ka5 42. Rxb5+ Kxb5 43. Nd6+ Kb4 {And now ...Rf6 would win.} 44. Ng5 h6 ( 44... Kb3 $5 45. Kc1 $8 Kc3 46. Nb5+ Kd3 $11) 45. Ngf7 {[%mdl 64] Double Attack } Kc5 46. Nb7+ Kd4 47. Nbd6 Kc5 48. Nb7+ Kd4 49. Nbd6 Kc5 50. Nb7+ Kc6 51. Nbd6 Kc5 52. Nb7+ Kd4 53. Nbd6 Kc5 {Black escapes into a draw. Weighted Error Value: White=0.19/Black=0.19} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.19"] [White "Martin Duque, Jesus"] [Black "Asadli, Vugar"] [Result "1/2-1/2"] [ECO "B75"] [WhiteElo "2444"] [BlackElo "2572"] [Annotator "TA"] [PlyCount "114"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,114,62,54,56,56,49,54,60,64,55,57,93,83,60,48,64,29,44,26,39,49,85, 58,115,59,60,86,88,70,177,84,118,122,114,128,120,119,120,85,73,78,88,85,135,92, 86,107,216,216,214,212,208,197,196,206,220,93,93,76,73,68,73,39,38,27,93,85,86, 85,85,70,70,70,70,8,8,8,8,8,8,8,8,8,43,43,43,43,43,43,43,43,43,43,43,43,43,0, 43,0,43,0,43]} 1. Nf3 c5 2. e4 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 a6 8. Qd2 h5 {B75: Sicilian Dragon: Yugoslav Attack, Miscellaneous.} 9. Be2 Nbd7 10. O-O b6 {White is slightly better.} 11. Nd5 {And now Nc6 would win. } Bb7 12. c4 Rc8 13. Rac1 O-O 14. Rfd1 {[#]} e6 $146 ({Predecessor:} 14... Re8 15. Bg5 e6 16. Nxf6+ Bxf6 17. Bxf6 Qxf6 18. b4 d5 19. cxd5 exd5 20. Rxc8 Rxc8 21. exd5 Bxd5 22. Bxa6 {1-0 (54) Kryvoruchko,Y (2711)-Zubarev,A (2548) Lvov 2015}) 15. Nxf6+ Bxf6 16. b4 Re8 17. Nb3 Be7 18. Bf1 Qc7 {[#]} (18... Bc6 $14) 19. Kh1 (19. a4 $1 $16) 19... Qb8 20. a4 Bc6 21. Qa2 Rc7 {[#]} (21... Ne5 $14) 22. Nd4 (22. a5 $1 $18 {has better winning chances.}) 22... Ba8 23. a5 bxa5 24. Qxa5 Bb7 25. Nb3 Rec8 26. c5 dxc5 27. Nxc5 Nxc5 28. bxc5 Qa7 29. Qa1 Bc6 30. Qe5 {Threatens to win with Bd4.} Be8 (30... Rd7 $16) 31. Bd4 $18 {[%csl Gd4] [%CAl Re5h8]} f6 32. Qxe6+ {[%mdl 64] Double Attack} Bf7 33. Qxa6 Qxa6 34. Bxa6 Rd8 35. c6 (35. Be2 $18 {and White stays clearly on top.}) 35... Ba3 $16 36. Bg1 ({Don't play} 36. Bxf6 Rxd1+ 37. Rxd1 Rxc6 $11) (36. Rc2 {is interesting.} Bb3 37. Bc4+ Bxc4 38. Rxc4 Bb2 39. h4) 36... Rxd1 37. Rxd1 Rxc6 38. Bb7 Rc7 39. Bd5 Bc5 (39... Bxd5 $11 40. Rxd5 Kf7) 40. Rc1 Bb6 41. Rxc7 Bxc7 42. Bd4 Bxd5 43. exd5 $14 {[%mdl 4096] Endgame KB-KB} Kf7 44. Bf2 (44. g3 $14) 44... Ke7 $11 45. g4 hxg4 46. fxg4 {aiming for h4.} Be5 47. Bc5+ Bd6 48. Bd4 {Hoping for h4.} Bf4 49. h4 Kd6 50. Bxf6 Kxd5 51. Kg2 Ke4 52. Bc3 Bc1 53. Be1 Be3 54. Bg3 Bc1 55. Be1 Be3 56. Bg3 Bc1 57. Be1 Be3 {White really could win this. Weighted Error Value: White=0.17/Black=0.14} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.20"] [White "Dragnev, Valentin"] [Black "Zarubitski, Viachaslau"] [Result "1-0"] [ECO "B40"] [WhiteElo "2569"] [BlackElo "2426"] [Annotator "TA"] [PlyCount "81"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,81,38,41,47,43,28,29,20,29,31,50,5,30,0,43,31,52,39,30,23,17,14,14,8, 43,35,44,44,43,41,45,40,35,39,35,28,28,27,29,34,36,44,75,71,99,99,99,98,120, 111,125,125,126,98,108,115,177,175,182,175,487,487,487,479,479,467,414,289,703, 703,703,641,627,602]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5 5. Be3 Qb6 6. Na3 {[#] Hoping for Nc4. B40: Sicilian: 2...e6, Unusual lines.} Qa5+ 7. Bd2 Qd8 8. Nb3 {White has an edge.} Bxa3 9. bxa3 Nc6 {[#]} 10. Bd3 $146 ({Predecessor: } 10. Qg4 Qf6 11. Bd3 d6 12. Qg3 e5 13. f4 exf4 14. Bxf4 Qc3+ 15. Ke2 Nf6 16. Bxd6 {1/2-1/2 (56) Mayer,E-Keller,G DESC email 2011}) 10... Nf6 11. O-O d5 12. exd5 Qxd5 13. Qe2 O-O 14. Bc3 Qh5 15. Rfd1 Qxe2 16. Bxe2 e5 17. Bb5 Bf5 18. Bxc6 bxc6 19. Bxe5 Bxc2 20. Rdc1 Be4 21. f3 $36 {[%mdl 2048] [#] And now Bxf6 would win. Black is under pressure.} Bd5 22. Nd4 Rfe8 23. Bxf6 gxf6 24. Nxc6 Bxc6 25. Rxc6 $11 {[%mdl 4096] Endgame KRR-KRR} Kg7 26. Rac1 Re2 27. R1c2 Rxc2 28. Rxc2 $16 {KR-KR} Rd8 29. Rc7 Rd2 30. Rxa7 Rxa2 31. Ra4 h5 32. h4 Kg6 (32... f5 $16 33. Ra5 Kf6) 33. Kh2 Kg7 34. Kh3 Kg6 $2 (34... f5 {is a better chance.} 35. Ra5 Kf6) 35. g4 $18 Ra1 36. gxh5+ Kxh5 37. Ra5+ Kg6 38. a4 {[%CAl Ba3a4, Ba4a5][%mdl 32]} Kh6 $2 (38... Rg1 39. h5+ Kh6) 39. Ra8 {White is clearly winning.} Kg7 40. a5 Rh1+ 41. Kg3 {Weighted Error Value: White=0.05/Black=0.21} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.21"] [White "Fernandez, Daniel Howard"] [Black "Perunovic, Milos"] [Result "1/2-1/2"] [ECO "B33"] [WhiteElo "2487"] [BlackElo "2567"] [Annotator "TA"] [PlyCount "97"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,97,46,28,25,18,29,31,25,29,62,10,0,-18,-7,-8,-7,-17,-18,-18,-28,-29, -31,-26,-35,-13,-6,-6,-6,-5,-10,-14,-9,-9,-12,-10,-9,-12,-13,-13,-15,-8,0,-14, -18,-41,-14,-41,-47,-45,-6,-45,-5,-5,-5,-7,0,0,0,-5,-5,-9,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Ndb5 Bc5 7. Bf4 {[#] Black must now prevent Nc7+.} O-O {B45: Sicilian Four Knights.} 8. Bc7 Qe7 9. Bd6 $1 {[%CAl Rd6e7]} Bxd6 {White is slightly better.} 10. Qxd6 Qd8 $1 {The main line 10...Qd8 scores better than 10...Ne8.} 11. Qc7 (11. Nc7 $14 Ne8 12. Nxe8 Rxe8 13. O-O-O) 11... d5 $11 12. exd5 exd5 13. O-O-O d4 {[#] Strongly threatening ...a6.} 14. Bc4 $146 ({ Predecessor:} 14. Na4 Qd5 15. Kb1 Bf5 16. Qd6 Rfd8 17. Qxd5 Nxd5 18. Bd3 Bxd3 19. cxd3 a6 20. Na3 {0-1 (59) Sadikhov,U (2502)-Navara,D (2703) Budva 2019}) 14... a6 15. Qxd8 Rxd8 16. Nc7 Rb8 17. N3d5 Nxd5 18. Nxd5 Bg4 (18... Be6 $5 19. Nb6 $8 Bxc4 20. Nxc4 f6 $11) 19. f3 Be6 20. Nb6 Bxc4 21. Nxc4 Nb4 22. a3 {[#]} Rbc8 $1 23. axb4 Rxc4 {[%mdl 4096] Endgame KRR-KRR} 24. Rhe1 Rxb4 25. Re7 g6 26. Rde1 Rc8 (26... Kf8 {with more complications.} 27. R1e4 a5 28. b3 b5 29. Rc7 Re8) 27. Re8+ (27. Rd7 {is interesting.} h5 28. Ree7 Rbc4 29. Re2 Kf8 30. Rd2) 27... Rxe8 28. Rxe8+ {KR-KR} Kg7 29. Re4 a5 30. b3 b5 31. g4 f5 32. Re7+ { The position is equal.} Kf6 33. Rxh7 a4 34. bxa4 bxa4 35. h4 Rc4 36. Kd2 Ke5 37. h5 fxg4 {aiming for ...g3.} 38. hxg6 {Threatens to win with g7.} Kf6 ({Not } 38... gxf3 $2 39. g7 $18) 39. g7 Kf7 40. fxg4 Kg8 41. Rh5 (41. Rh6 {is more complex.} Kxg7 42. Ra6 Kf7 43. Kd3 Rc3+ 44. Kxd4 Rxc2 45. Rxa4 Kg6 46. Kd3) 41... Kxg7 42. Ra5 Kg6 43. Kd3 {White threatens Ra6+ and mate.} Rc3+ 44. Kxd4 Rxc2 45. Rxa4 Kg5 46. Kd3 Rg2 47. Re4 Rxg4 48. Rxg4+ Kxg4 49. Ke4 {Weighted Error Value: White=0.05/Black=0.04} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.22"] [White "Kadric, Denis"] [Black "Lazov, Toni"] [Result "1-0"] [ECO "C41"] [WhiteElo "2586"] [BlackElo "2412"] [Annotator "TA"] [PlyCount "135"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,135,42,49,41,44,30,31,33,34,18,25,21,48,40,45,56,88,91,95,83,89,100, 80,80,86,92,81,71,79,80,90,67,71,70,79,85,92,47,63,68,98,98,98,97,97,99,112, 112,105,105,127,110,197,79,120,106,251,234,233,230,237,228,219,187,188,190,229, 228,303,294,279,265,390,284,284,284,333,250,230,230,223,140,199,161,161,161, 149,157,152,149,140,141,347,345,338,317,447,444,441,441,444,414,450,445,545, 516,461,422,754,606,1120,395,596,594,627,620,617,633,741,740,668,685,785,727]} 1. e4 d6 2. d4 Nf6 3. Nc3 e5 4. Nf3 Nbd7 5. Bc4 Be7 6. O-O h6 7. a4 c6 8. Ba2 { C41: Philidor Defence.} Qc7 9. a5 $5 {[%mdl 4] An interesting side line.} Nf8 { [#]} 10. d5 $146 {White is slightly better.} ({Predecessor:} 10. Nh4 g6 11. f4 Be6 12. Nf3 exd4 13. Nxd4 Bxa2 14. Rxa2 O-O-O 15. a6 b6 16. Be3 {1-0 (36) Prithu,G (2293)-Pribylova,S (1979) Prague 2017}) 10... Ng6 11. h3 O-O 12. Be3 c5 13. Bc4 Nh7 14. a6 bxa6 15. Bxa6 f5 16. Bxc8 Qxc8 17. exf5 Qxf5 18. Ra4 Rab8 19. b3 Rb7 20. Ne2 {[%CAl Bc3e2,Be2g3,Bg3e4][%mdl 32]} Qf7 21. Ng3 Rfb8 22. Ne4 Rb4 23. Rxb4 Rxb4 24. c4 Nf6 25. Nfd2 Nxe4 26. Nxe4 Qf5 27. Ng3 Qf7 28. Qc2 Bf8 29. Ra1 Nh4 30. Qe4 Ng6 31. Ra3 Rb7 32. Nf5 Qf6 {[#]} (32... Rb6 $16 {is a better defense.}) 33. Qg4 (33. Ra6 $1 $18 {is more deadly.}) 33... Kh7 34. Ng3 Rf7 (34... Nf4 $16 {was called for.}) 35. Ne4 Qh4 {[#]} 36. Ra6 $1 Qxg4 37. hxg4 Rd7 38. Nc3 Ne7 39. Nb5 Nc8 40. Rc6 Nb6 41. Bd2 Kg6 42. Kf1 h5 (42... Kf7 $142 43. f3 g6) 43. gxh5+ Kxh5 44. Ke2 Kg4 45. Ba5 Kf5 46. Bxb6 axb6 47. Rxb6 $18 {[%mdl 4096] Endgame KRB-KRN} e4 (47... Be7 $16 48. Rb8 e4) 48. b4 cxb4 49. Ke3 g6 50. Nd4+ {[%mdl 64] Discovered Attack} Ke5 {Hoping for ...Bh6+.} 51. Nc6+ Kf5 52. Rxb4 ({But not} 52. Nxb4 Ra7 $14) 52... Rh7 $2 {Black cannot hold the game after this.} (52... Bh6+ $16 53. Ke2 Bg7) 53. Rb8 Bh6+ 54. Ke2 Kg4 ( 54... Bc1 {keeps fighting.} 55. Re8 Kg5 56. Rxe4 Ba3) 55. Re8 Rb7 {Now ...Rb2+ and Black clings on.} 56. Rxe4+ Kf5 57. f3 Rb2+ 58. Kf1 Bg7 59. Ne7+ Kg5 60. Rg4+ Kh5 (60... Kf6 $142 61. Rxg6+ Kxe7 62. Rxg7+ Kf6) 61. Nxg6 Rc2 62. Nf4+ { [%mdl 64] Discovered Attack} Kh6 63. Ne2 {White is clearly winning.} Bb2 64. Kf2 Ba3 65. Ke3 Bc5+ 66. Kd3 Ra2 67. Ng3 Ra8 68. Nf5+ {Weighted Error Value: White=0.12/Black=0.25} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.23"] [White "Ahmadzada, Ahmad"] [Black "Sadhwani, Raunak"] [Result "1-0"] [ECO "A80"] [WhiteElo "2431"] [BlackElo "2555"] [Annotator "TA"] [PlyCount "93"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,93,22,0,0,0,5,0,25,0,0,0,16,29,54,54,70,58,99,111,112,77,77,77,77,77, 77,74,98,77,77,77,77,77,77,77,77,70,77,77,106,41,39,37,43,0,73,108,77,73,145, 137,234,239,1118,687,652,641,841,813,717,302,2606,2443,5604,5604,5363,5110, 5057,1226,5402,5203,1793,1148,1133,1114,1104,1097,1073,1058,1079,1027,995,973] } 1. d4 f5 2. Nf3 Nf6 3. Bg5 e6 4. Nbd2 Be7 5. Bxf6 Bxf6 6. e4 O-O 7. Bd3 d5 { A80: Dutch Defence: Unusual White second moves.} 8. exf5 exf5 9. O-O g5 { The position is equal.} 10. Re1 Nc6 11. c3 {[#]} g4 $146 ({Predecessor:} 11... Qd6 12. Bb5 g4 13. Bxc6 gxf3 14. Be8 fxg2 15. Qf3 Kh8 16. Re2 Be6 17. Bh5 Rad8 {1-0 (41) Gurevich,D (2553)-Frisk Kockum,A (2367) Chess.com INT 2019}) 12. Ne5 Bxe5 13. dxe5 Be6 14. f4 Ne7 15. Nb3 Ng6 16. Nd4 Qd7 (16... Nxf4 $2 17. Rf1) 17. g3 c5 18. Nxe6 Qxe6 19. Qe2 a5 20. Qf2 Rac8 21. Rad1 Ne7 22. Rd2 Kg7 23. Red1 h5 24. a4 b6 25. Bf1 c4 26. Rd4 (26. Rb1 $16) 26... Rc5 $14 27. Bg2 Qc6 28. Qe2 Kf7 (28... b5 $11) 29. b4 $16 cxb3 30. c4 $1 Qxa4 (30... b2 $142) 31. cxd5 Qb5 {[#]} (31... Rc2 $16 {was called for.} 32. Qf1 Qa2) 32. e6+ $1 $18 Ke8 $2 (32... Kg7 33. Qxb5 Rxb5) 33. Qe1 {Threatens to win with Bf1.} Rc2 34. d6 Qe2 35. Qxe2 Rxe2 36. Bf1 (36. d7+ $142 Kd8 37. Rd6) 36... Rc2 $2 {[#]} (36... Re4 37. Bb5+ Kd8 38. dxe7+ Kxe7) 37. Bb5+ {White is clearly winning.} Kd8 38. dxe7+ Kxe7 39. Rd7+ Kf6 40. Ba4 (40. e7 $142 Re8 41. Re1) 40... Rc3 41. e7 Re8 42. R7d6+ Kxe7 43. Bxe8 Kxe8 44. Re6+ Kf8 45. Rxb6 a4 46. Rd8+ Ke7 47. Ra8 { Weighted Error Value: White=0. 35/Black=0.24} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.24"] [White "Bjerre, Jonas Buhl"] [Black "Nguyen, Piotr"] [Result "1-0"] [ECO "B36"] [WhiteElo "2542"] [BlackElo "2411"] [Annotator "TA"] [PlyCount "105"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,104,43,39,42,24,31,25,23,25,27,25,33,35,31,20,21,8,14,0,0,-9,-13,-38, -37,-40,-40,-44,-26,-31,-42,-82,-33,-33,0,-12,-11,-17,14,0,141,131,164,166,380, 368,320,40,40,35,35,35,41,33,31,42,30,10,10,10,10,10,15,8,8,8,49,10,310,306, 306,306,295,281,396,396,386,72,376,367,524,513,29989,29990,29996,29997,29997, 29998,29999]} 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. c4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Be3 O-O 10. Qd2 a5 {B36: Sicilian: Maroczy Bind: Gurgenidze System.} 11. Rd1 a4 12. O-O Qa5 {White has an edge.} 13. Bd4 Bd7 14. Qe3 Bc6 15. h4 h5 16. f4 Nd7 {[#]} 17. Bxg7 $146 ({Predecessor:} 17. Nd5 Bxd5 18. Bxg7 Kxg7 19. Rxd5 Qc7 20. Qd4+ Nf6 21. Rb5 Rfd8 22. Qe3 e5 23. f5 { 1/2-1/2 (34) Wosch,A (2657)-Keller,G IECC email 2015}) 17... Kxg7 18. Qg3 Rad8 19. Kh1 Nf6 20. e5 (20. Qe3 {is more complex.} Qc5 21. Qd3 Rfe8 22. Kh2 Rc8 23. g3) 20... dxe5 21. fxe5 Ng4 22. Rxd8 Qxd8 23. Bxg4 hxg4 24. Kh2 Qb6 25. Rf2 Qc5 26. b3 axb3 27. axb3 Qb4 28. Ne2 b5 (28... Qb6 $11 {keeps the balance.}) 29. Nd4 Bd7 30. e6 $1 {[%mdl 64] Decoy} (30. Nxb5 Bxb5 31. cxb5 Rh8 $11) 30... Bxe6 (30... Bc8) 31. Qe5+ $18 {[%mdl 64] Double Attack} Kg8 {next ...Qc3 is good for Black.} 32. h5 $2 (32. cxb5 Qc3 $17) (32. Nxe6 $18 fxe6 33. Qxe6+ Kg7 34. Rxf8 {[%mdl 64] Overworked Piece} Kxf8 35. Qxg6 (35. Qxg4 bxc4 36. bxc4 Kf7 $16 )) 32... bxc4 $14 33. Nxe6 {[%csl Ge6][%CAl Re5g7]} Qb8 34. Qxb8 Rxb8 {Endgame KRN-KR} 35. Nd4 {hxg6 is the strong threat.} e5 36. Nc6 Rxb3 37. Rc2 {Black must now prevent hxg6.} gxh5 38. Nxe5 c3 39. Kg3 Kg7 40. Nd3 Kg6 41. Kh4 Kh6 42. Rf2 {aiming for Rf6+.} (42. Nc1 $5 {[%CAl Rc1b3]} Rb2 43. Rxc3 $11) 42... Rb1 $2 {[%mdl 8192]} (42... c2 $11 {and Black has nothing to worry.} 43. Nc1 Rc3) 43. Rf6+ $1 $18 Kg7 44. Rc6 Rh1+ 45. Kg5 $1 f6+ (45... Ra1 {is a better defense.} 46. Kxh5 Ra2) 46. Kf5 h4 47. Rc7+ $2 (47. Kxg4 $18 {and the rest is easy.} Kf8 48. Rxf6+ Ke8 49. Rc6) 47... Kf8 $2 {[%mdl 8192]} (47... Kh6 $16 { is tougher.}) 48. Kxg4 f5+ {[#]} (48... Rg1 $142 49. Nf4 (49. Rxc3 Rxg2+ 50. Kh3 Rg3+ 51. Kh2 f5 $11) 49... Rc1 50. Kxh4 Ke8) 49. Kg5 $1 {[%CAl Rg5f6] Hoping for Kf6.} h3 (49... Ra1 $18 50. Nf4 Ra4 51. Rxc3 Ra5 52. Rc8+ Ke7) 50. Kf6 {[%CAl Rc7c8] White mates.} Ke8 {[#]} 51. Nc5 $1 {[%CAl Rc7c8]} Rd1 52. Ne6 {[%csl Gf6][%CAl Rc7e7]} hxg2 53. Re7# {Weighted Error Value: White=0.24/ Black=0.57} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.25"] [White "Zanan, Evgeny"] [Black "Raja Rithvik R"] [Result "1/2-1/2"] [ECO "E04"] [WhiteElo "2531"] [BlackElo "2408"] [Annotator "TA"] [PlyCount "64"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,64,11,11,11,11,6,15,12,12,12,10,8,0,21,23,33,-10,-11,-31,-16,-42,-46, -44,-39,-80,-10,-24,53,51,53,66,64,44,61,20,16,11,19,20,20,18,27,0,0,0,0,-13, -9,-11,0,0,0,-12,-2,-5,-4]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 dxc4 5. Bg2 a6 6. Ne5 Bb4+ {E04: Open Catalan: 5 Nf3.} 7. Nc3 {[#] aiming for Qa4+.} Nd5 8. Bd2 Nb6 9. e3 N8d7 10. Nxd7 Qxd7 11. Ne4 Qe7 12. O-O a5 {[#]} 13. Bc3 $146 ({ Predecessor:} 13. a3 Bd6 14. Qc2 O-O 15. Rfc1 Bd7 16. Be1 Bc6 17. Nd2 Bxg2 18. Kxg2 e5 19. Nxc4 Nxc4 20. Qxc4 {0-1 (83) Navaratnam,R (2061)-Hua,E (2285) Corum 2019}) 13... O-O 14. Qh5 Nd5 15. a3 Bxc3 16. Nxc3 c6 17. Rfc1 Re8 (17... a4 $17) 18. Ne4 e5 ({Black should try} 18... b5 $11) 19. Qxe5 $14 Qxe5 20. dxe5 Rxe5 21. Rxc4 Nb6 22. Rc5 (22. Rd4 {is more complex.} g6 23. Rc1 Re7 24. Rd8+ Kg7 25. Nc5) 22... Rxc5 23. Nxc5 Kf8 24. Rd1 Ke7 25. Rd4 Nd7 26. Na4 Rb8 { The position is equal.} 27. Nc3 Nc5 28. b4 axb4 29. axb4 Ne6 30. Rd1 Nc7 31. Na4 Be6 {[#] ...Bb3 is the strong threat.} 32. Nc5 Na6 {Weighted Error Value: White=0.09/Black=0.12} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.26"] [White "Iskandarov, Misratdin"] [Black "Agmanov, Zhandos"] [Result "1-0"] [ECO "C15"] [WhiteElo "2535"] [BlackElo "2404"] [PlyCount "107"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. e4 {[%emt 0:14:39]} e6 {[%emt 0:15:30]} 2. d4 {[%emt 0:00:07]} d5 {[%emt 0: 00:30]} 3. Nc3 {[%emt 0:00:30]} Bb4 {[%emt 0:00:30]} 4. Nge2 {[%emt 0:00:30]} dxe4 {[%emt 0:00:30]} 5. a3 {[%emt 0:00:30]} Bxc3+ {[%emt 0:00:30]} 6. Nxc3 { [%emt 0:00:30]} Nc6 {[%emt 0:00:30]} 7. Bb5 {[%emt 0:00:30]} Nge7 {[%emt 0:00: 30]} 8. Nxe4 {[%emt 0:00:30]} O-O {[%emt 0:00:30]} 9. c3 {[%emt 0:00:30]} Qd5 { [%emt 0:05:20]} 10. Qe2 {[%emt 0:12:31]} f5 {[%emt 0:00:30]} 11. Ng5 {[%emt 0: 00:30]} Qxg2 {[%emt 0:00:30]} 12. Rf1 {[%emt 0:00:30]} f4 {[%emt 0:00:30]} 13. Nf3 {[%emt 0:00:30]} e5 {[%emt 0:00:30]} 14. Rg1 {[%emt 0:00:30]} Qh3 {[%emt 0: 00:30]} 15. d5 {[%emt 0:00:30]} e4 {[%emt 0:00:30]} 16. Ng5 {[%emt 0:00:30]} Qxh2 {[%emt 0:00:30]} 17. Qf1 {[%emt 0:00:30]} e3 {[%emt 0:00:30]} 18. dxc6 { [%emt 0:00:30]} bxc6 {[%emt 0:00:30]} 19. Be2 {[%emt 0:00:30]} Nd5 {[%emt 0:00: 30]} 20. Nf3 {[%emt 0:00:30]} Qh6 {[%emt 0:00:30]} 21. Qg2 {[%emt 0:00:30]} exf2+ {[%emt 0:00:30]} 22. Kxf2 {[%emt 0:00:30]} Nf6 {[%emt 0:00:30]} 23. Rh1 { [%emt 0:00:30]} Ne4+ {[%emt 0:00:30]} 24. Kg1 {[%emt 0:00:30]} Qd6 {[%emt 0:00: 30]} 25. Nd4 {[%emt 0:00:30]} Ng3 {[%emt 0:00:30]} 26. Rh4 {[%emt 0:00:30]} Nxe2+ {[%emt 0:00:30]} 27. Qxe2 {[%emt 0:00:30]} f3 {[%emt 0:00:30]} 28. Qc4+ { [%emt 0:00:30]} Kh8 {[%emt 0:00:30]} 29. Kf2 {[%emt 0:00:30]} c5 {[%emt 0:00: 30]} 30. Nxf3 {[%emt 0:00:30]} Be6 {[%emt 0:00:30]} 31. Bf4 {[%emt 0:00:30]} Qb6 {[%emt 0:00:30]} 32. Qe2 {[%emt 0:00:30]} Rae8 {[%emt 0:00:30]} 33. Re1 { [%emt 0:00:30]} Bf7 {[%emt 0:00:30]} 34. Ne5 {[%emt 0:00:30]} Qf6 {[%emt 0:00: 30]} 35. Reh1 {[%emt 0:00:30]} Kg8 {[%emt 0:00:30]} 36. Kg3 {[%emt 0:00:30]} h5 {[%emt 0:00:30]} 37. Qe4 {[%emt 0:00:30]} Re6 {[%emt 0:00:30]} 38. Rxh5 { [%emt 0:00:30]} Bxh5 {[%emt 0:00:30]} 39. Rxh5 {[%emt 0:00:30]} g6 {[%emt 0:00: 30]} 40. Rg5 {[%emt 0:00:30]} Kg7 {[%emt 0:00:30]} 41. Qc4 {[%emt 0:00:30]} Qe7 {[%emt 0:00:30]} 42. Nf3 {[%emt 0:00:30]} Rf5 {[%emt 0:00:30]} 43. Rxf5 { [%emt 0:00:30]} gxf5 {[%emt 0:00:30]} 44. Qd5 {[%emt 0:00:30]} Qf7 {[%emt 0:00: 30]} 45. Qxc5 {[%emt 0:00:30]} Qd7 {[%emt 0:00:30]} 46. Nd4 {[%emt 0:00:30]} Rg6+ {[%emt 0:00:30]} 47. Kf3 {[%emt 0:00:30]} Kf7 {[%emt 0:00:30]} 48. Qxc7 { [%emt 0:00:30]} Qxc7 {[%emt 0:00:30]} 49. Bxc7 {[%emt 0:00:30]} Kf6 {[%emt 0: 00:30]} 50. c4 {[%emt 0:00:30]} Rg4 {[%emt 0:00:30]} 51. Bf4 {[%emt 0:00:30]} Rg1 {[%emt 0:00:30]} 52. c5 {[%emt 0:00:30]} Rf1+ {[%emt 0:00:30]} 53. Ke3 { [%emt 0:00:30]} Rc1 {[%emt 0:00:30]} 54. c6 {[%emt 0:00:30]} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.27"] [White "Annaberdiev, Meilis"] [Black "Petkidis, Anthony"] [Result "1-0"] [ECO "D02"] [WhiteElo "2532"] [BlackElo "2401"] [Annotator "TA"] [PlyCount "81"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,81,5,5,7,0,4,0,0,-3,0,0,0,-8,0,0,-3,-11,30,-12,-12,-12,-7,-6,0,0,0,0, 14,0,0,0,0,0,39,5,0,0,0,0,0,-5,-5,-9,-15,-18,45,56,132,128,116,91,106,90,145, 152,482,265,260,254,584,582,577,576,522,432,574,570,1031,1033,29981,29982, 29981,29981]} 1. d4 Nf6 2. Nf3 d5 3. Bf4 e6 4. e3 Bd6 5. Nbd2 Bxf4 6. exf4 b6 { D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 7. c3 O-O 8. Bd3 c5 {The position is equal.} 9. O-O Ba6 10. Bxa6 Nxa6 11. Re1 Nc7 12. Ne5 {[#]} Nb5 $146 ({Predecessor:} 12... Nce8 13. Qf3 Nd6 14. Nb3 Rc8 15. Rad1 c4 16. Nd2 b5 17. Qh3 a5 18. Ndf3 b4 {1-0 (63) Berchtenbreiter,M (2499) -Garrido Outon,A (2359) Chess.com INT 2020}) 13. Nf1 Rc8 14. Qd3 (14. f5 $5) 14... Nd6 15. Ne3 Re8 16. Rad1 c4 17. Qc2 b5 18. f5 a5 19. Re2 b4 20. fxe6 Rxe6 21. Rde1 g6 22. h3 Kg7 23. N5g4 Nxg4 24. hxg4 Ne8 25. g3 Nf6 26. Kg2 h6 27. Qc1 Qd6 ({Black should play} 27... Ne4 $11) 28. g5 $1 $14 {[%CAl Rg5f6]} Ng8 ({ Don't blunder} 28... hxg5 $2 29. Nf5+ $1 {[%mdl 512]} gxf5 30. Qxg5+ Kh8 31. Rxe6 $18) ({Better is} 28... Ne4 $14) 29. Ng4 $16 h5 {Hoping for ...Rxe2.} 30. Ne5 {And now Nxf7! would win.} Re7 31. Qf4 bxc3 (31... Rd8 $142) 32. bxc3 Qa3 $2 {A mistake that costs the game.} (32... Rd8 $16 33. Rb2 f6) 33. Qf3 (33. g4 $142) 33... Qd6 $18 {[#]} 34. g4 $1 {[%CAl Rg4h5]} f6 $2 {[#]} (34... h4 35. Rh1 f6) 35. Nxg6 $1 {[%CAl Re2e7][%mdl 512]} Rxe2 36. Rxe2 fxg5 37. gxh5 Rd8 38. Re5 Qf6 {Black hopes to continue with ...Qxf3+.} 39. Rf5 g4 40. Qf4 Qe6 41. Ne5 {Weighted Error Value: White=0.21/Black=0.55} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.28"] [White "Caspi, Israel"] [Black "Radovanovic, Nikola"] [Result "1/2-1/2"] [ECO "B32"] [WhiteElo "2503"] [BlackElo "2395"] [Annotator "TA"] [PlyCount "63"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 30,63,39,30,29,34,27,15,65,65,117,116,188,62,70,0,0,-53,-49,-52,9,9,18, 12,17,21,19,11,84,-118,-121,-120,-116,-110,-112,-122]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 a6 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qd1 Qg6 9. Nc3 { [%CAl Bb1c3,Bc3d5,Bd5c7][%mdl 32]} d5 10. Nxd5 Qxe4+ 11. Be3 Nd4 12. Nc7+ Ke7 13. Rc1 Bg4 14. Qd3 Qxd3 15. Bxd3 Rd8 16. h3 Bh5 {B32: Sicilian: Löwenthal and Kalashnikov Variations.} 17. f4 exf4 18. Bxf4 {And now 0-0 would win.} Nf6 {[#] The position is equal.} 19. O-O $146 ({Predecessor:} 19. Kf2 Bg6 20. Rhe1+ Kd7 21. Rcd1 Kc6 22. Be5 Nf5 23. c4 Nd6 24. Bxg6 hxg6 25. Bxd6 Rxd6 {0-1 (39) Rawley,L-Pinto,M East Lansing 1981}) 19... Kd7 ({But not} 19... Ne2+ $2 20. Bxe2 Bxe2 21. Rce1 $18) (19... Rd7 $14) 20. Be5 $16 Kc8 (20... Bg6 $16 { was called for.}) 21. Rf4 ({White should try} 21. c4 $1 $18 {Strongly threatening Nd5.} Nc6 22. Bf5+ Kb8 23. Nxa6+ {[%mdl 64] Discovered Attack (Double check)} Ka7 24. Bxf6 gxf6 25. Nc7) 21... Nc6 $14 22. Bf5+ (22. Bxf6 $14 gxf6 23. Na8) 22... Nd7 $1 $11 23. Bd6 (23. Re1 $11) 23... g6 $15 24. Be4 Nde5 (24... Ndb8 $1 $15 25. Rf6 Rxd6 $1 {[%mdl 576] Remove Defender} 26. Rxd6 Kxc7) 25. Bxe5 $11 Nxe5 26. Nd5 f5 27. Ne7+ $1 Kb8 $1 28. Nxf5 Rhf8 {[#]} (28... gxf5 $11 {remains equal.} 29. Rxf5 {[%mdl 64] Double Attack} Ng6) 29. Rcf1 $1 Be2 $17 {Black is better.} ({And not} 29... gxf5 30. Rxf5 Rxf5 31. Rxf5 $16) 30. Re1 Rd1 31. Rxd1 Bxd1 32. Bxb7 {Weighted Error Value: White=0.38/Black=0.19} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.29"] [White "Milanovic, Danilo"] [Black "Erenberg, Ariel"] [Result "1/2-1/2"] [ECO "A46"] [WhiteElo "2416"] [BlackElo "2494"] [Annotator "TA"] [PlyCount "112"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 20,111,15,9,31,10,19,14,14,4,19,-6,-2,-7,6,0,6,7,4,0,-12,-37,-37,-7,-3, -87,-78,-87,-89,-87,-104,-116,-104,-106,-114,-109,-68,-71,-42,-59,-42,-69,-72, -95,-42,-33,-36,-58,-57,-54,-40,-33,-12,-12,-12,-12,-12,-107,-107,-133,-133, -133,-133,-446,-67,-74,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0] } 1. d4 Nf6 2. Nf3 e6 3. Bg5 Be7 4. e3 b6 5. Nbd2 Bb7 6. Bd3 c5 7. c3 cxd4 8. cxd4 O-O 9. O-O d6 10. Qe2 h6 11. Bh4 a6 {[%CAl Ba7a6,Ba6a5][%mdl 32] A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems.} 12. Rac1 Nbd7 {[#]} 13. e4 $146 ({Predecessor:} 13. Rfd1 b5 14. Bg3 Qa5 15. Nb3 Qb6 16. e4 Nh5 17. e5 Nxg3 18. hxg3 Rfc8 19. Bb1 {0-1 (32) Triger,F (2106)-Collas,S (2352) France 2009}) 13... b5 14. Bb1 e5 15. a3 Qb6 16. b4 a5 17. Bd3 exd4 18. Bxb5 Ne5 19. Nxe5 dxe5 20. bxa5 Qxa5 21. a4 Ba6 {White should prevent ...d3!} 22. Nf3 {[#]} (22. Bxf6 $11 {keeps the balance.} Bxf6 23. Rc6 Bxb5 24. axb5) 22... Qxa4 $1 $17 23. Bxa6 Qxa6 (23... Rxa6 $6 24. Nxe5 Re8 25. Qd3 $11) 24. Qxa6 Rxa6 25. Nxe5 g5 $1 {[%CAl Rg5h4]} 26. Bg3 Nxe4 27. Rfe1 Nxg3 28. hxg3 Bb4 29. Red1 Bc3 30. Nf3 Ra4 31. Rd3 g4 (31... Re8 $17 32. Rcd1 Re4) 32. Ne5 $15 f5 33. Nc6 Re8 {...Re6 is the strong threat.} 34. Rcd1 {[%CAl Rc6d4]} Re4 35. Kf1 $1 Kf7 (35... Ra1 { looks sharper.} 36. Rxa1 Bxa1 37. f3 Re6 38. Nb4 Kf7) 36. f3 Re3 37. Rxe3 dxe3 $11 {[%mdl 4096] Endgame KRB-KRN} 38. Rd7+ (38. Ke2 $11) 38... Ke6 $1 $17 { [%CAl Re6d7]} 39. Re7+ {[#]} Kd6 $1 {[%CAl Rd6c6]} 40. Rxe3 {[#]} Ra1+ $1 ({ Reject} 40... Kxc6 $6 41. Rxc3+ Kd6 42. Rc8 $11) 41. Ke2 $2 {[%mdl 8192]} (41. Kf2 $17 {nothing else works.} Ra2+ 42. Kf1 Ra1+ 43. Ke2 Ra2+ 44. Kd3) 41... Ra2+ $2 ({Inferior is} 41... Kxc6 42. Rxc3+ Kd5 43. Rc7 $11) (41... Re1+ $19 42. Kf2 Rxe3 43. Kxe3 Kxc6 44. fxg4 fxg4) 42. Kd3 $15 Bf6 ({But not} 42... Rxg2 43. Ne7 $11) ({Black should play} 42... Kxc6 $17 43. Kxc3 Kd5 44. Rd3+ Ke5 45. Re3+ Kf6 46. fxg4 fxg4) 43. Nd4 $11 {The position is equal.} Bxd4 44. Kxd4 { KR-KR} h5 45. Rb3 Rd2+ 46. Ke3 Rxg2 (46... Ra2 {feels hotter.} 47. Rb5 Rxg2 48. Rxf5 Rxg3 49. Kf2 h4) 47. Rb5 Rxg3 48. Rxf5 Ke6 (48... h4 {seems wilder.} 49. Kf2 gxf3 50. Rf4 Rg2+ 51. Kxf3 Rh2) 49. Kf2 Kxf5 (49... Rh3 {looks sharper.} 50. fxg4 hxg4 51. Rf4 Rf3+ 52. Rxf3 gxf3 53. Kxf3 Kf7) 50. Kxg3 h4+ (50... Kg5 {is interesting.} 51. fxg4 hxg4 52. Kh2 Kf6 53. Kg2 Kf7) 51. Kxh4 gxf3 {KP-K} 52. Kg3 Ke4 53. Kf2 Kf4 54. Kf1 Ke3 {( -> ...f2)} 55. Ke1 f2+ 56. Kf1 Kf3 { Weighted Error Value: White=0.24/Black=0.18} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.06"] [Round "7.30"] [White "Leniart, Arkadiusz"] [Black "Kamer, Kayra"] [Result "0-1"] [ECO "B43"] [WhiteElo "2499"] [BlackElo "2355"] [Annotator "TA"] [PlyCount "84"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,84,6,20,-7,-1,-10,-6,-30,-13,-9,-16,-22,-26,-87,-66,-95,-86,-103, -106,-105,-80,-193,-160,-156,-162,-169,-163,-164,-142,-145,-121,-129,-118,-219, -204,-204,-202,-247,-240,-275,-272,-262,-226,-243,-227,-251,-242,-314,-326, -326,-318,-285,-246,-224,-206,-676,-705,-855,-937,-918,-872,-1098,-1083,-5795, -5220,-29989,-29990,-29989,-29985]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. g3 Bb7 7. Bg2 Nf6 8. a3 Qc7 9. O-O Nc6 10. Bg5 {[#] B43: Sicilian: Kan Variation: 5 Nc3.} Nxd4 $146 ({Predecessor:} 10... Be7 11. Re1 h6 12. Be3 O-O 13. f4 d6 14. Nb3 Rac8 15. Kh1 Rfd8 16. Qd2 Nd7 {0-1 (34) Smetisko,M (1687) -Ljikar,T (1862) Busevec 2014}) 11. Qxd4 Bc5 12. Qd2 {The position is equal.} Ng4 $1 13. Rad1 Ne5 14. Bf4 {[#] Bxe5 is the strong threat.} d6 15. a4 (15. Ne2 $11) 15... Nc4 16. Qc1 b4 17. Na2 e5 18. Bd2 a5 19. Rfe1 (19. b3 $17 Nxd2 20. Qxd2) 19... Qb6 20. Be3 Nxe3 21. fxe3 Bc6 $36 {[%mdl 2048] Keeping White busy.} 22. b3 Qb7 23. Qd2 Bxe4 24. Bxe4 Qxe4 25. Qd3 (25. c3 $17) 25... Qxd3 26. cxd3 Bb6 27. Kf2 Kd7 28. Ke2 f5 29. Rf1 Ke6 30. Kd2 h5 31. Nc1 h4 32. Ne2 hxg3 33. hxg3 Rh2 34. Rc1 Rah8 35. Rc6 Bc5 36. g4 $2 (36. Ra6) 36... fxg4 $19 37. Rc7 R8h3 38. d4 exd4 39. exd4 Bxd4 {[#] Strongly threatening ...Bc3+.} 40. Rff7 Bf6 41. Kd1 Rd3+ 42. Kc2 Re3 {Weighted Error Value: White=0.94/Black=0.06} 0-1