[Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.1"] [White "Nihal Sarin"] [Black "Kovalenko, Igor"] [Result "1-0"] [ECO "D02"] [WhiteElo "2620"] [BlackElo "2643"] [Annotator "Shahid"] [PlyCount "81"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,81,-10,17,18,16,17,10,12,26,26,26,26,37,31,33,40,33,33,43,31,53,56,43, 33,38,25,17,9,44,39,41,25,35,30,33,28,39,36,46,46,36,36,39,43,45,41,97,100,77, 79,91,0,45,47,115,120,120,93,97,83,130,90,197,188,816,823,791,792,726,711,1366, 1367,5310,5241]} 1. d4 d5 2. Nf3 Nf6 3. Bf4 c5 4. e3 Nc6 5. Nbd2 cxd4 6. exd4 { D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Bf5 7. Bb5 Rc8 8. Ne5 {[#] The position is equal.} Bd7 $146 ({Predecessor:} 8... Qb6 9. Bxc6+ bxc6 10. Nb3 h6 11. O-O e6 12. c4 Be7 13. Qe2 Qa6 14. Nc5 Bxc5 15. dxc5 {1-0 (38) Abasov,N (2665)-Navara,D (2697) Prague 2021}) 9. Nxd7 Qxd7 10. c3 e6 11. O-O a6 12. Bd3 Bd6 13. Bg5 Be7 14. Re1 Qc7 15. Qf3 Nd7 16. Bxe7 Nxe7 17. Qh3 Qf4 18. Nf3 Rc6 19. Re3 g6 20. Rae1 h5 21. g3 Qf6 22. Qg2 Nf5 23. Bxf5 gxf5 24. h4 Kd8 25. Ng5 Kc8 26. Qf3 Kb8 27. b3 Ka7 $6 {[#]} (27... Rc7) 28. c4 $1 $16 {[%CAl Rc4d5]} dxc4 (28... Rd6 29. Qf4) 29. d5 exd5 {[#]} 30. Qxd5 ({ White should try} 30. Re7 $1 $16 {[%CAl Re7d7]} cxb3 31. Qxb3 (31. Rxd7 b2 $11) (31. Rxf7 Re8 $11) 31... Nb6 (31... Rb6 $2 32. Qxd5 Rd6 33. Qxf7) 32. Rxf7) 30... Nb6 31. Qxf7 cxb3 (31... Qxf7 $14 32. Nxf7 f4) 32. Qxb3 Rhc8 33. Nh3 Rc1 34. Nf4 Qd4 35. Kg2 {And now Rxc1 would win.} ({Not} 35. Nxh5 Qd2 $15) 35... R8c3 $4 (35... R1c2 $16 {might work better.}) 36. Rxc1 $18 Rxc1 (36... Rxb3 37. axb3 (37. Rxb3 Nd5 $16) 37... Nd5) 37. Ne2 {[%mdl 64] Double Attack. White is clearly winning.} Qa1 38. Nxc1 Qxc1 39. Re6 Qc7 40. Qe3 a5 41. f3 {Weighted Error Value: White=0.08/Black=0.18} (41. f3 Ka6 (41... Qc2+ 42. Qf2) 42. Qd3+ Ka7 43. Qxf5) 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.2"] [White "Basso, Pier Luigi"] [Black "Fedoseev, Vladimir"] [Result "0-1"] [ECO "E81"] [WhiteElo "2550"] [BlackElo "2696"] [Annotator "TA"] [PlyCount "92"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,92,25,8,22,5,22,25,19,20,15,14,32,21,33,29,12,34,47,57,57,46,33,0,0, 0,0,0,0,0,0,0,0,0,12,12,26,0,0,0,0,0,0,0,0,0,12,-12,-10,-23,0,-26,-17,-24,-21, -60,-62,-59,-53,-59,-73,-175,-163,-231,-229,-402,-56,-1193,-1186,-29985,-29986, -29991,-29992,-29992,-29992,-29992,-29993]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Nge2 c5 7. d5 e6 8. Ng3 exd5 9. cxd5 a6 10. a4 h5 {A65: Modern Benoni: 6 e4.} 11. Bg5 Qe8 12. Bd3 Nbd7 {White has an edge. has lost popularity (12...Nh7).} 13. O-O Nh7 14. Bh4 Ne5 {[#] Strongly threatening ... g5.} 15. f4 {[#]} Bg4 $146 ({Predecessor:} 15... Nxd3 16. Qxd3 Bd7 17. e5 dxe5 18. f5 e4 19. Ngxe4 Qe5 20. f6 Bh6 21. Bf2 Bf5 {1-0 (38) Salzmann,S (2347) -Sommerhalder,E (2058) ICCF email 2017}) 16. Qd2 Nxd3 17. Qxd3 b5 18. axb5 axb5 19. Nxb5 Qd7 20. Ne2 Bxe2 21. Qxe2 Rab8 22. Nc3 Rb4 23. f5 Rfb8 24. Ra2 Bd4+ 25. Bf2 Bf6 26. Bg3 Bd4+ 27. Bf2 Qe7 28. Bxd4 cxd4 29. Nd1 Nf6 30. fxg6 fxg6 31. Qf3 Rf8 32. Qd3 Qxe4 33. Nf2 Qe8 34. Ra6 Nxd5 {...Nf4 is the strong threat. } 35. Ra8 $1 {[%CAl Ra8e8]} Qe6 36. Rxf8+ Kxf8 37. Qf3+ Kg7 $1 38. Nd3 Rb8 39. Re1 {[#]} (39. Nf4 $17 {was necessary.} Nxf4 40. Qxf4) 39... Ne3 $1 $19 40. h3 (40. Ra1 $142) 40... Rf8 41. Nf4 $2 (41. Qg3 {is a better defense.}) 41... Qe5 $2 (41... Qf5 $19 42. Ne2 Qe5) 42. g3 {[%mdl 8192] Loses the game.} (42. Nxg6 $15 Rxf3 43. Nxe5) 42... h4 43. Qb7+ Kh6 {Black mates.} 44. Rc1 hxg3 45. Rc7 Rxf4 {[%csl Ge3][%CAl Rf4f1]} 46. Rh7+ Kg5 {[%csl Ge3][%CAl Rf4f1] Weighted Error Value: White=0.42/Black=0.17} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.3"] [White "Warmerdam, Max"] [Black "Hovhannisyan, Robert"] [Result "1/2-1/2"] [ECO "A21"] [WhiteElo "2535"] [BlackElo "2632"] [Annotator "TA"] [PlyCount "77"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] 1. c4 e5 2. Nc3 Bb4 3. Qc2 Nf6 4. Nf3 d6 5. Qa4+ Nc6 6. Nd5 {A21: English Opening: 1...e5 2 Nc3.} Ba5 7. b4 Bb6 8. Nxb6 cxb6 {[#]} 9. e3 $146 ({ Predecessor:} 9. b5 Ne7 10. g3 O-O 11. Bg2 Bg4 12. O-O Qd7 13. d3 h6 14. Ba3 Ng6 15. Rfe1 {1/2-1/2 (33) Gierth,K-Weber,J Germany 1996}) 9... O-O 10. b5 Na5 11. Be2 Bg4 12. d3 a6 13. Qb4 d5 14. cxd5 Qxd5 15. e4 Qe6 16. Bb2 axb5 17. Qxb5 Nc6 18. O-O (18. Nxe5 $2 Bxe2 19. Kxe2 Ra5 $19) 18... Bxf3 19. Bxf3 Nd7 20. Bc3 Ra3 21. Qb2 Rfa8 22. Bd1 Nc5 ({Inferior is} 22... Rxa2 23. Bb3 $1 $16) 23. Bb3 Qd6 24. Rfd1 h5 ({Stronger than} 24... Nxd3 25. Qb1 $16) (24... b5 {feels hotter.} 25. Qb1 Nxb3 26. axb3 R8a6 27. d4 exd4 28. Rxa3 Rxa3 29. Rd3 Ra8) 25. h3 Nxb3 ({And not} 25... Nxd3 26. Qb1 $16) (25... b5 {seems wilder.} 26. Qd2 Nd4 27. Bxd4 Qxd4 28. Bd5 Na4) 26. axb3 Rxa1 27. Rxa1 Rxa1+ (27... Re8 { is more complex.} 28. Rd1 b5 29. b4 g6 30. Qb3 Kf8) 28. Qxa1 Qxd3 29. Bxe5 Nxe5 30. Qxe5 Qxb3 $15 {[%mdl 4096] Endgame KQ-KQ} 31. Qb8+ Kh7 32. Qxb7 {[#]} (32. Qe5 $1 $11 {keeps the balance.}) 32... b5 $1 $17 33. e5 {[#]} b4 (33... Qc4 $1 $17 34. Qf3 b4 35. Qxh5+ Kg8) 34. Qe4+ $11 {The position is equal.} g6 35. Qb7 Kg8 36. Qb8+ Kg7 {Threatens to win with ...Qc3.} 37. e6 Kf6 38. Qd6 {aiming for e7+.} Qxe6 39. Qxb4 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.4"] [White "Petrosyan, Manuel"] [Black "Aleksandrov, Aleksej"] [Result "1/2-1/2"] [ECO "D37"] [WhiteElo "2625"] [BlackElo "2529"] [Annotator "TA"] [PlyCount "47"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,47,18,29,18,18,18,28,11,17,20,20,15,15,0,27,27,21,17,17,16,29,33,30, 27,36,37,35,29,61,48]} 1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 Nbd7 5. cxd5 exd5 6. Bg5 h6 7. Bh4 c6 8. e3 Be7 9. Bd3 Ne4 10. Bxe7 Qxe7 11. Bxe4 {D35: Queen's Gambit Declined: Exchange Variation.} dxe4 12. Nd2 Nf6 13. Qc2 {[%CAl Rd2e4] White has an edge.} Bf5 14. O-O O-O 15. Rab1 Rfe8 16. b4 a6 17. Rfc1 Rad8 18. a4 Nd5 19. Nxd5 Rxd5 {[#]} 20. Qd1 $146 ({Predecessor:} 20. a5 Bc8 21. Nc4 Rb5 22. Nb6 Bf5 23. Qd2 Bd7 24. Nxd7 Qxd7 25. Rc5 Rxc5 26. bxc5 Re7 27. Qb4 Qd5 28. Qb3 Qxb3 29. Rxb3 f5 30. h4 Kf7 {1/2-1/2 (30) Kukov,V (2399)-Nalbant,T (2256) Manisa 2018}) 20... Qg5 21. Rc5 h5 22. Kh1 Re6 23. Rbc1 Bg6 24. Qf1 {Weighted Error Value: White=0.05/Black=0.07} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.5"] [White "Nenezic, Marko"] [Black "Indjic, Aleksandar"] [Result "1/2-1/2"] [ECO "A33"] [WhiteElo "2531"] [BlackElo "2607"] [Annotator "TA"] [PlyCount "90"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,90,16,4,30,29,29,22,30,12,15,12,14,16,16,14,15,15,20,7,21,0,0,-10,12, 0,0,0,0,0,0,0,4,0,0,0,0,0,3,2,33,-27,-21,-23,-32,-43,-24,-18,-27,-17,-6,-10,-5, -6,-14,-8,-10,-21,-6,-42,-33,-37,-37,-43,-27,-37,-22,-30,0,0,0,0,0,-11,0,0,0,0, 0,0,0,0,0]} 1. Nf3 c5 2. c4 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Bf4 d6 { A33: Symmetrical English: 2 Nf3 Nf6 3 d4 cxd4 4 Nxd4 e6 5 Nc3 Nc6.} 7. Nxc6 bxc6 8. e4 e5 {[#]} 9. Bd2 $146 ({Predecessor:} 9. Be3 Be7 10. Be2 O-O 11. O-O a5 12. Qc2 Ng4 13. Bd2 Be6 14. h3 Nf6 15. Rfd1 {1-0 (52) Korpa,B (2505) -Perunovic,M (2604) Austria 2018}) 9... Be7 10. Be2 O-O 11. O-O Be6 12. Qc2 Rc8 13. Rfd1 Qc7 14. Rac1 Qb8 15. Qa4 Bd8 ({Don't blunder} 15... Qxb2 $2 16. Rb1 $18) 16. Be3 a5 17. Rb1 Qb4 18. a3 Qxa4 19. Nxa4 Bc7 20. f3 Ra8 21. Bb6 Bxb6+ 22. Nxb6 Rab8 23. Na4 Rfd8 24. b4 Kf8 25. c5 ({Much worse is} 25. bxa5 Rxb1 26. Rxb1 Ra8 $15) (25. b5 $14) 25... axb4 $11 26. axb4 d5 27. exd5 Nxd5 28. b5 cxb5 29. Bxb5 Bf5 30. Rb2 Ke7 31. Bc4 {[#] Strongly threatening Rxb8.} Rxb2 32. Nxb2 Be6 33. Kf2 f6 34. Na4 (34. Bxd5 {looks sharper.} Bxd5 35. Ra1 Rd7 36. Nd1 Rc7 37. Ra5) 34... Nc7 35. Rxd8 Kxd8 $15 {[%mdl 4096] Endgame KBN-KBN} 36. Bd3 h6 37. Nc3 Kd7 38. Ne4 Kc6 39. Ng3 $1 {The position is equal.} Bf7 40. Nf5 Ne8 41. Bc2 Kxc5 42. Ba4 $1 Be6 43. Ng3 Bf7 44. Nf5 Be6 45. Ng3 Bf7 {Weighted Error Value: White=0.06/Black=0.06} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.6"] [White "Bernadskiy, Vitaliy"] [Black "Makhnev, Denis"] [Result "1-0"] [ECO "D43"] [WhiteElo "2599"] [BlackElo "2480"] [Annotator "TA"] [PlyCount "53"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,53,0,27,0,16,-41,37,0,0,-10,20,26,70,70,64,48,57,41,25,0,0,0,182,200, 423,190,197,190,169,162,529,532,514,516,501,500,578,546]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5 h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Be2 Nbd7 10. Qc2 {Recently 10.0-0 got a lot of attention. D43: Semi-Slav: 5 Bg5 h6.} (10. d5 $5 {[%CAl Rd5c6]} Bb7 11. dxe6 fxe6 12. Nd4 $11) 10... Bb7 11. O-O ({White should try} 11. Rd1 $11) 11... Rg8 {[#]} ({Black should play} 11... Nh5 $15) 12. d5 $146 {White is slightly better.} ({Predecessor:} 12. Rad1 Qb6 13. b3 cxb3 14. axb3 Bb4 15. e5 Bxc3 16. exf6 Bb4 17. Ne5 Nxf6 18. f4 Be7 19. fxg5 hxg5 20. Nxf7 {1-0 (31) Komljenovic,D (2434)-Coursaget,N (2226) Plancoet 2003}) 12... cxd5 (12... exd5 $6 13. exd5 Bc5 14. dxc6 $16) 13. exd5 Bxd5 (13... exd5 $6 14. Nxb5 Rc8 15. Nxa7 $16) 14. Nd4 a6 15. Nxd5 exd5 {[#]} 16. Bh5 $1 Bc5 $1 { [%CAl Rc5d4]} (16... Nxh5 $2 17. Rae1+ Be7 18. Nc6 $18) 17. Ne6 {[%CAl Re6d8]} (17. Nc6 $2 Qb6 $19) 17... Qc8 18. Qe2 Ne4 19. Rad1 Ndf6 {[#]} ({Not} 19... Nxg3 $2 20. hxg3 Nf6 21. Nxc5+ Kf8 22. Qf3 $1 $18) (19... Qc6 $1 $11 {and Black has nothing to worry.} 20. Nc7+ {[%mdl 64] Double Attack} Kf8 21. Nxa8 Qxa8) 20. Rxd5 $3 $18 {[%mdl 512]} Nxd5 (20... Qxe6 {was worth a try.} 21. Re5 Ke7) 21. Qxe4 (21. Nxc5 $142 Qxc5 22. Qxe4+ Kf8 23. Qh7 {[%mdl 64] Double Attack}) 21... Nf6 {[#]} 22. Nc7+ $1 $40 {[%mdl 128] White has strong attack.} Kf8 {[#]} 23. Qc6 {[%CAl Rc6f6]} Nxh5 (23... Kg7 {is a better chance.}) 24. Qxh6+ {White is clearly winning.} Rg7 25. Qh8+ Rg8 26. Qxh5 Be7 27. Re1 { Weighted Error Value: White=0.15/Black=0.72} (27. Re1 Ra7 (27... Rb8 28. Qh6+ Rg7 29. Rxe7 Qf5 (29... Kxe7 30. Qd6#) 30. Re1) 28. Qh6+ Rg7 29. Be5 f6 30. Bxf6 Bxf6 31. Qh8+) 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.7"] [White "Shevchenko, Kirill"] [Black "Nikitenko, Mihail"] [Result "1/2-1/2"] [ECO "C88"] [WhiteElo "2605"] [BlackElo "2472"] [Annotator "TA"] [PlyCount "75"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 21,75,0,37,39,22,37,36,25,26,32,54,33,2,18,80,81,73,72,75,27,29,22,16, 20,50,30,23,0,0,0,0,0,0,0,0,0,7,0,9,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. a4 b4 9. a5 O-O 10. c3 Rb8 11. Bc4 Bb7 (11... Nxe4 {seems wilder.} 12. Bd5 Nxf2 13. Kxf2 Nxa5 14. cxb4 c6) 12. d4 {C90: Closed Ruy Lopez with 7...d6: Early deviations.} bxc3 13. Nxc3 exd4 14. Nxd4 {White is slightly better.} Nxd4 15. Qxd4 Nxe4 16. Nd5 Bxd5 17. Qxd5 {[#]} Nf6 $146 {[#]} (17... Nc5 $11 {keeps the balance.}) ({ Predecessor:} 17... Nc5 18. Ra3 Bf6 19. Rh3 h6 20. Rg3 c6 21. Qxc6 Qxa5 22. Rd1 Rfe8 23. Re3 Rxe3 24. Bxe3 {1-0 (55) Molner,M (2447)-Nguyen,E (2105) Orlando 2019}) 18. Qc6 $1 $16 d5 19. Bxa6 Qd6 20. Bb7 {Hoping for Qxd6.} Qb4 {[%CAl Rb4e1][%mdl 64] [#] Double Attack} 21. Bg5 $1 {next a6 is good for White.} Rxb7 {[#]} 22. Rxe7 $1 Qxb2 (22... Ne4 23. Be3) 23. Ree1 {aiming for Bxf6.} Qb5 $1 { [%CAl Rb5c6]} 24. Qc2 {With the idea Bxf6.} Qa6 {The position is equal.} 25. Qc5 Ne4 26. Qxd5 Nxg5 27. Qxg5 Rb5 28. Qd2 h6 29. Qc3 c5 30. Re5 Rc8 31. g3 c4 32. Rxb5 Qxb5 $11 {[%mdl 4096] Endgame KQR-KQR} 33. a6 Ra8 34. a7 {Threatens to win with Qf3.} Qc5 35. Ra5 Qc7 36. h4 Rxa7 37. Rxa7 Qxa7 38. Qxc4 {Weighted Error Value: White=0.06/Black=0.08} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.8"] [White "Safarli, Eltaj"] [Black "Pranav Vijay"] [Result "1/2-1/2"] [ECO "A20"] [WhiteElo "2598"] [BlackElo "2265"] [Annotator "TA"] [PlyCount "135"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 11,135,32,36,5,22,0,0,0,0,0,0,0,0,0,-6,-8,0,-16,-8,-12,-14,-20,-6,0,-9, -4,0,0,0,0,0,-35,-34,-29,-54,-47,-40,-60,0,0,0,-10,-12,-8,0,0,0,0,15,4,29,0,0, 0,160,144,91,14,115,113,121,109,138,79,107,97,193,164,206,204,188,191,214,132, 122,128,122,137,312,131,124,19,93,0,17,0,111,132,121,132,117,122,129,98,79,91, 60,93,120,6,20,20,20,20,45,0,146,56,46,50,63,0,0,0,0,-34,0,0,0,0,0,0,0,-214, -214,-199]} 1. c4 e5 2. g3 Nf6 3. Bg2 c6 4. Nf3 e4 5. Nd4 d5 6. cxd5 Qxd5 7. e3 {A20: English Opening: 1...e5.} Bc5 (7... Bg4 $5 {[%CAl Rg4d1]} 8. Qc2 Na6 $14) 8. Nc3 Qe5 9. d3 {The position is equal.} exd3 10. Qxd3 O-O 11. O-O Rd8 12. Qc2 Na6 {[#]} 13. Nce2 $146 ({Predecessor:} 13. a3 Qh5 14. Nce2 Bxd4 15. Nxd4 Bh3 16. Bxh3 Qxh3 17. f3 c5 18. Ne2 Rac8 19. e4 {1-0 (45) Svidler,P (2723)-Vidit,S (2726) chess24.com INT 2020}) 13... Nb4 14. Qc4 Bf8 15. Bd2 Nbd5 16. Bc3 Qh5 17. Nf4 Nxf4 18. exf4 Bg4 19. Rfe1 b5 20. Qb3 {Re5 is the strong threat.} (20. Qxc6 b4 $17) 20... b4 $1 {[%CAl Rb4c3]} 21. Nxc6 bxc3 22. Nxd8 Rxd8 23. Qxc3 Qb5 24. a3 Rc8 (24... Rd3 $15 25. Qe5 Qb6) 25. Qd2 $11 Qb3 26. Re3 Qb6 27. b4 Bf5 28. Rc3 Re8 29. Rc6 Qb5 30. Qd4 Be4 31. Rc7 Bxg2 32. Kxg2 a6 $2 (32... Nd5 $11 33. Rc5 (33. Rxa7 $2 Qc6 $19) 33... Nxf4+ 34. Qxf4 (34. gxf4 Bxc5 35. Qxc5 Qb7+ 36. f3 Qa6 $11) 34... Bxc5 35. bxc5 Qxc5) 33. Qc4 $1 $16 Qh5 {White should prevent ...Nd5.} 34. Qc6 (34. h3 $16) 34... Qf5 (34... a5 $1 $11) 35. Rd1 $1 h5 {Black wants to play ...h4.} 36. h4 Re6 37. Qc2 (37. Qc4 $142 $1) 37... Qb5 38. Qc4 Qb6 (38... Qxc4 $16 {was called for.} 39. Rxc4 g6) 39. f5 Ng4 40. Rd2 Ne5 41. Qe4 ({And not} 41. fxe6 Nxc4 42. exf7+ Kh7 $15) 41... Rd6 42. Rxd6 Qxd6 43. Rc8 Ng4 44. Qa8 $1 Qe7 $2 (44... Nf6 $16 45. Rd8 Qe7) 45. Rb8 ( 45. Re8 $18 {has better winning chances.} Qd6 46. Rd8) 45... Nf6 46. Qf3 (46. Rd8 $16) 46... Qc7 (46... Ng4 $1 $11) 47. Rb7 (47. Qb7 $16 Qe5 48. Rd8) 47... Qc4 48. Rb6 Nd7 (48... Ng4 $11 {keeps the balance.}) 49. Rc6 Qd4 {And now ... Ne5 would win.} 50. Rc8 $1 ({Don't play} 50. Rxa6 $6 Ne5 $11) ({Don't blunder} 50. Qxh5 $2 Qe4+ 51. Qf3 Qxf3+ 52. Kxf3 Ne5+ 53. Ke4 Nxc6 $19) 50... Nf6 {[#]} 51. Qa8 $1 Qd6 52. Kh3 Nd7 53. Re8 Qd3 54. Kg2 Qd6 55. a4 (55. Rd8 $16 Qe7 56. Kf1) 55... Qxb4 56. Qxa6 {Threatens to win with Qc6.} Nf6 57. Re2 Qg4 58. Qb5 Nd5 {[#]} 59. Re8 ({White has to play} 59. Rd2 $1 $16 Nf4+ 60. Kg1) 59... Nf6 $14 60. Re3 Qd4 61. Re2 ({White should play} 61. Rf3 $14) 61... Bc5 $36 { [%mdl 2048] Hoping for ...Qd5+. Black fights for an advantage.} 62. Qb8+ Kh7 { White must now prevent ...Qd5+.} 63. Qb7 Qxa4 (63... Qc4 $5 {[%CAl Rc4e2]} 64. Rb2 Qxa4 $11) 64. Qxf7 Qa8+ 65. Kg1 Qf3 66. Qg6+ Kg8 67. Rd2 $2 (67. Re8+ $1 $11 Nxe8 68. Qxe8+ Bf8 69. Qe6+ Kh8 70. Qf7 Qd1+ 71. Kh2) 67... Bb6 $19 { [%mdl 1024] Black has strong compensation.} 68. Rb2 {Black used his chance. Weighted Error Value: White=0.22/Black=0.27} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.9"] [White "Aditya Mittal"] [Black "Postny, Evgeny"] [Result "1-0"] [ECO "E39"] [WhiteElo "2438"] [BlackElo "2583"] [Annotator "TA"] [PlyCount "63"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,63,30,31,27,23,32,12,20,30,26,8,31,30,40,27,37,13,22,16,51,11,47,52, 77,9,179,210,248,247,262,257,275,291,295,301,289,296,278,294,337,262,376,376, 402,357,406,392,753,746,729,713]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O 6. Nf3 Nc6 7. a3 Bxc5 8. Bg5 h6 {E39: Nimzo-Indian: Classical: 4...c5 5 dxc5 0-0.} 9. Bh4 Be7 10. e3 b6 {The position is equal.} 11. Be2 Bb7 12. O-O d6 13. Rfd1 {[#]} Qb8 $146 ({Predecessor:} 13... a6 14. Rd2 Qc7 15. Rad1 Rfd8 16. Nd5 exd5 17. cxd5 Nxd5 18. Rxd5 Qd7 19. Bxe7 Qxe7 {1/2-1/2 (42) Christensen,N (2196)-Kuecher,W (2043) Bayern 2011}) 14. b4 {[%CAl Bb2b4,Bb4b5] [%mdl 32]} a6 15. Na4 Qc7 16. Rac1 Rad8 17. b5 Nb8 18. Qb2 Ba8 19. Qd4 (19. bxa6 $16 Nxa6 20. Qxb6) 19... axb5 $2 {Loses the game.} (19... Nbd7 $1 $11 { and Black stays safe.}) 20. cxb5 $18 Qa7 21. Nxb6 {[#] And now Nd5 would win.} Bxf3 22. Bxf3 {Hoping for Nd5.} ({Don't do} 22. gxf3 $6 Qb7 $16) 22... Qxa3 23. Ra1 Qc5 24. Qxc5 dxc5 25. Nc4 Rxd1+ 26. Rxd1 Rd8 {Now ...Rxd1+ and Black clings on.} 27. b6 Kf8 (27... Rxd1+ $142 28. Bxd1 Na6) 28. Bg3 {[#] Threatens to win with Rxd8+.} Rxd1+ 29. Bxd1 Na6 30. Ba4 Ne4 $2 (30... Nd5 31. Bb5 Nxb6 32. Nxb6 Nb4) 31. Bb5 Nxg3 32. Bxa6 {[%emt 0:00:36] Weighted Error Value: White=0.13/Black=0.} ({Not} 32. fxg3 Nb8 $14) 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.10"] [White "Iskandarov, Misratdin"] [Black "Kuzubov, Yuriy"] [Result "1-0"] [ECO "B33"] [WhiteElo "2535"] [BlackElo "2653"] [Annotator "TA"] [PlyCount "87"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 24,87,41,40,56,56,62,58,55,41,43,31,62,62,66,54,55,47,55,37,40,35,50,37, 37,24,14,21,27,14,18,8,86,86,90,90,90,81,84,79,127,79,59,50,102,98,102,16,47, 47,47,47,47,47,47,47,47,47,12802,12822,8106,7592,6103,686,6079,5559]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6 9. Nc4 Rc8 10. Bxf6 Qxf6 11. Nb6 Rb8 12. Bd3 Qd8 13. Ncd5 g6 {B33: Sicilian: Pelikan and Sveshnikov Variations.} 14. O-O Bh6 15. a4 O-O {White is slightly better.} 16. c3 Kh8 {[#]} 17. Qe2 $146 ({Predecessor:} 17. Bc2 Rg8 18. Qf3 Bg5 19. Rad1 f5 20. Qh3 Rf8 21. Kh1 Rf7 22. b4 a5 23. b5 {1-0 (36) Arnold,L (2375) -Schebler,G (2435) Germany 1997}) 17... f5 18. b4 a5 19. bxa5 Nxa5 20. Rab1 Nc6 21. exf5 gxf5 22. f4 Bg7 23. Kh1 Ne7 24. Nxe7 Qxe7 25. Bc4 Bxc4 26. Qxc4 exf4 27. Qxf4 Bxc3 (27... Rbe8 $11) 28. Nd5 $1 $16 {[%csl Bc3,Be7][%mdl 64] [#] Double Attack} Qg7 29. Nxc3 Qxc3 30. Qxd6 {aiming for Rxb7!} Qf6 31. Qf4 Qg7 32. h3 Rbe8 33. Qf3 Re7 (33... Re4 $14) 34. Rb5 f4 35. Rb3 ({White should play } 35. Rb4 $16) 35... Rg8 36. Rfb1 {[%CAl Rb3b7]} Re3 37. Rxe3 fxe3 $14 { [%mdl 4096] Endgame KQR-KQR} 38. Qe4 Qg6 39. Qxb7 Qc2 40. Rg1 {Strongly threatening Qe7.} Qxa4 $2 {[%mdl 8192] This move loses the game for Black.} ( 40... Qf2 $14) 41. Qb2+ $18 {White is clearly winning.} Rg7 42. Qb8+ Rg8 43. Qe5+ {[%mdl 64] [#] Double Attack} Rg7 44. Rb1 {Weighted Error Value: White=0. 10/Black=0.15} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.11"] [White "Ter-Sahakyan, Samvel"] [Black "Annaberdiev, Meilis"] [Result "1-0"] [ECO "B42"] [WhiteElo "2644"] [BlackElo "2532"] [Annotator "TA"] [PlyCount "61"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,61,29,48,29,38,29,23,14,68,59,110,90,150,76,96,100,108,93,101,87,156, 107,156,45,110,127,135,102,100,95,95,114,105,93,86,88,91,95,85,74,195,179,189, 195,181,193,170,192,771,740,682,312,29997,-117]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Ne7 6. O-O {B42: Sicilian: Kan Variation: 5 Bd3.} g6 7. f4 $5 {[%mdl 4] A promising side line.} Bg7 8. c3 {[#] White has an edge.} e5 $146 ( 8... O-O $11) ({Predecessor:} 8... f5 9. exf5 gxf5 10. Qh5+ Ng6 11. Nf3 Nc6 12. Be3 O-O 13. Ng5 h6 14. Qxg6 hxg5 15. fxg5 Ne5 {0-1 (29) Gulamali,K (2532) -Iturrizaga Bonelli,E (2962) Chess.com INT 2020}) 9. fxe5 $14 Nec6 ({Black should try} 9... Nbc6 $14) 10. Nf3 $16 O-O (10... d5 $142) 11. Nbd2 (11. Bc4 $142) 11... d6 12. exd6 Qxd6 13. Nc4 Qc7 14. Ne3 Ne7 (14... Be6 $142) 15. Bc4 { Threatens to win with Bxf7+!} Nd7 16. a3 ({Better is} 16. Ng5 $1 $16 {[%CAl Rc4f7]} Ne5 17. Bxf7+ Kh8 18. Bb3) 16... b5 (16... Nc5 $14) 17. Ba2 Nc5 {[#]} 18. Ng5 {[%CAl Rf1f7]} Be6 {...Bxa2 would now be nice for Black.} 19. Nd5 Bxd5 20. exd5 ({Of course not} 20. Bxd5 $6 Nxd5 21. exd5 h6 $11) 20... Nf5 21. Bf4 Be5 22. d6 {[%mdl 64] X-Ray Attack} Bxd6 23. Bxd6 Nxd6 24. Qg4 {And now Qh4 would win.} Rae8 {[#] Black cannot hold the game after this.} (24... h5 $16 25. Qg3 Qb6) 25. Qh4 $1 $18 {[%csl Gg5][%CAl Rh4h7]} h5 26. Rf6 {White threatens Rxg6+ and mate.} Nc4 27. Bxc4 $40 {[%mdl 128] White wants a kill.} bxc4 28. Qxc4 Kg7 (28... Ne6 29. Qxc7 Nxc7) 29. Raf1 {[%CAl Rf6f7]} Re7 30. Qd4 (30. b4 $142 Qe5 31. Qxc5 Qxc5+ 32. bxc5) 30... Kg8 $2 {[#]} (30... Qe5 $18 31. Rxf7+ Rfxf7 32. Rxf7+ Kg8 33. Rxe7 Qxe7) 31. Rxg6+ $1 {[%mdl 33344] Back Rank. Weighted Error Value: White=0.29/Black=0.42.} (31. Rxg6+ fxg6 32. Rxf8+ Kxf8 33. Qh8#) 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.12"] [White "Sadikhov, Ulvi"] [Black "Dragnev, Valentin"] [Result "1-0"] [ECO "A21"] [WhiteElo "2490"] [BlackElo "2569"] [Annotator "TA"] [PlyCount "55"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,32,9,6,43,33,30,38,49,41,28,37,43,43,43,43,43,28,96,62,109,84,151,89, 105]} 1. c4 e5 2. d3 g6 3. Nc3 Bg7 4. g3 Ne7 5. Bg2 O-O 6. h4 h6 {A21: English Opening: 1...e5 2 Nc3.} 7. h5 {[#] Threatens to win with hxg6.} g5 8. f4 exf4 { White is slightly better.} 9. gxf4 g4 10. e4 {aiming for f5.} f5 $1 11. Nge2 d6 12. Be3 {[#]} Nbc6 $146 ({Predecessor:} 12... Nd7 13. Qd2 c6 14. O-O-O Nf6 15. e5 Ne8 16. d4 d5 17. cxd5 cxd5 18. Bf2 Be6 {0-1 (50) Rotstein,A (2501) -Eisenbeiser,A (2387) Austria 2017}) 13. Qd2 Be6 (13... Rb8 $11 {remains equal. }) 14. O-O-O a6 15. Rdg1 Qd7 {[#]} (15... Rf7 $142) 16. Rh4 ({White should try } 16. b3 $1) 16... Kh8 {Weighted Error Value: White=0.10/Black=0.26} 17. exf5 Bxf5 18. Be4 Be6 19. f5 Nxf5 20. Rhxg4 Rf7 21. Rg6 Ne5 22. Bxh6 Nxg6 23. Bxg7+ Rxg7 24. hxg6 Rf8 25. Nf4 Bg8 26. Qh2+ Bh7 27. gxh7 Rf6 28. Bxf5 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.13"] [White "Blohberger, Felix"] [Black "Erigaisi Arjun"] [Result "0-1"] [ECO "D31"] [WhiteElo "2490"] [BlackElo "2567"] [Annotator "TA"] [PlyCount "110"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 29,110,-17,0,-46,-9,-23,0,-37,-29,-131,53,-123,-83,-139,-110,-277,-290, -261,-277,-464,-463,-411,-411,-484,-487,-474,-460,-445,-442,-510,-395,-397, -397,-397,-397,-397,-395,-395,-395,-389,-387,-431,-431,-443,-450,-441,-366, -640,-647,-412,-285,-524,-499,-543,-533,-491,-436,-429,-400,-531,-518,-509, -509,-767,-735,-695,-695,-922,-914,-862,-899,-811,-770,-2514,-2575,-2766,-2498, -2602,-2436,-2633,-2463,-29977,-29977]} 1. d4 d5 2. c4 e6 3. Nc3 c6 4. Nf3 dxc4 5. e3 b5 6. a4 Bb4 7. Bd2 a5 8. axb5 Bxc3 9. Bxc3 cxb5 10. b3 Bb7 11. bxc4 b4 12. Bb2 Nf6 13. Bd3 Nbd7 14. Qc2 Qc7 15. O-O O-O 16. h3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6.} Rfe8 {[#]} (16... Bxf3 $5 17. gxf3 Qc6 $15) 17. Nd2 $146 ({Predecessor:} 17. Kh1 h6 18. Rfe1 Bc6 19. d5 Bb7 { 1/2-1/2 (19) Wedda,D (2246)-Plesek,J (2050) Pardubice 2020}) 17... a4 18. Rfb1 {The position is equal.} e5 19. dxe5 $2 {[#]} (19. Bc1 $11 b3 20. Qd1) 19... Nxe5 $2 ({Black should try} 19... b3 $1 $17 20. Qc3 Rxe5) 20. Be2 $2 (20. Bxe5 $14 {was the only good move.} Rxe5 21. Rxb4) 20... b3 $40 {[%mdl 128] Black goes for the king.} 21. Qf5 (21. Qc3 $142) 21... Bc6 22. f3 $2 {[#] This move loses the game for White.} (22. Rd1 $17) 22... Ra5 $1 $19 {White must now prevent ... Nxf3+!} 23. Qf4 {[#]} Nh5 $1 {[%CAl Rh5f4]} 24. Qh4 {[#]} (24. Qd4 {keeps fighting.}) 24... Ng3 $1 {[%mdl 512] ...Ng6 is the strong threat.} 25. Qxg3 {[#] aiming for f4.} (25. Kf2 Nxe2) 25... Nxf3+ {[%mdl 576] Discovered Attack} 26. Bxf3 {[%csl Gb2][%CAl Rg3g7]} (26. Qxf3 Bxf3) 26... Qxg3 27. Bxc6 { next Nf1 is good for White.} Qxe3+ {[%mdl 64] Double Attack} 28. Kh1 Rc8 29. Nf3 Rxc6 30. Re1 {[#]} Qxe1+ 31. Rxe1 {[%CAl Re1e8]} f6 32. Nd2 Ra7 33. Ba3 Rd7 34. Re2 Rd3 35. Kg1 Rc3 36. Kf2 Rc2 37. c5 Ra2 38. Nc4 (38. Bb4) 38... Re6 39. Rb2 Kf7 40. Kf3 $2 (40. Rd2 {is the only way for White.}) 40... Ke8 41. Rd2 Rxd2 42. Nxd2 Kd7 43. Ne4 Kc6 44. g4 Re8 45. Nc3 g6 46. Ne4 (46. Bb2 $142 Ra8 47. Ba3) 46... Rb8 47. Bb2 f5 48. gxf5 gxf5 49. Nc3 Rb4 50. Ke3 Rh4 51. Ba3 Rxh3+ 52. Kd4 h5 53. Ne2 Rh2 54. Kd3 Kd7 55. Nd4 b2 {Weighted Error Value: White=1. 01/Black=0.16} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.14"] [White "Muradli, Mahammad"] [Black "Kadric, Denis"] [Result "1-0"] [ECO "A41"] [WhiteElo "2449"] [BlackElo "2586"] [Annotator "TA"] [PlyCount "75"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,75,43,48,29,51,17,54,45,37,41,43,28,20,14,12,23,64,84,111,102,162, 148,163,170,213,207,298,304,279,180,233,244,237,227,261,258,256,282,286,267, 424,233,282,264,375,362,353,278,448,192,906,874,1079,1056,4282,2799,6211,5098] } 1. d4 d6 2. Nf3 Nf6 3. c4 g6 4. Nc3 Bf5 5. Nh4 Bd7 6. e4 e5 7. Nf3 Bg7 8. Be2 Nc6 9. d5 Ne7 10. O-O {was the old line (10.Be3).} O-O 11. b4 {[#] E61: King's Indian: Early deviations for White, including Smyslov System.} a5 $146 ({ Predecessor:} 11... Ne8 12. c5 Kh8 13. a4 Ng8 14. a5 a6 15. Nd2 f5 16. Nc4 Qe7 {1/2-1/2 (16) Poluljahov,A (2505)-Malaniuk,V (2600) Krasnoyarsk 1998}) 12. Ba3 Re8 13. bxa5 {White is slightly better.} Rxa5 14. Bb4 Ra8 15. a4 c5 16. dxc6 Nxc6 17. Bxd6 Qa5 18. Nb5 {White stays focused until the end.} Rac8 19. Nd2 ( 19. Qd3 {keeps more tension.} Bg4 20. Rfb1 Red8 21. c5 Ne8 22. h3) 19... Nd4 ( 19... Qd8 $16) 20. Nxd4 $18 exd4 21. e5 Nh5 22. f4 f6 (22... Bc6 $142 23. Ra3 Nxf4) 23. Bxh5 gxh5 24. c5 {aiming for Ne4.} Bg4 (24... Qc3 {was worth a try.} 25. Nf3 h4) 25. Qb3+ Be6 26. Nc4 $1 {[%CAl Rc4a5]} Qa6 27. Rac1 {[%CAl Ba1c1, Bc1c2,Bc2f2][%mdl 32]} Kh8 28. f5 Bd5 29. Qd3 $1 {[%CAl Rd3d4]} Qc6 (29... Bh6 $142 30. Qxd4 Bxc4 31. Rxc4 Be3+ 32. Qxe3 Qxc4) 30. g3 (30. Qxd4 $142 Bh6 31. e6 (31. exf6 Re2 $11) 31... Bxg2 32. Ne5 $1 {[%mdl 512]} (32. Qxf6+ Bg7 $11)) 30... Bh6 {Hoping for ...Bxc4.} 31. Qxd4 {Black must now prevent Rce1.} Bh1 ( 31... Bxc1 $142 32. Rxc1 Bxc4) 32. Rc2 Qxa4 33. Rcf2 ({Weaker is} 33. Kxh1 Qxc2 34. Nb6 (34. exf6 Re4 $11) 34... Qe2 $18) 33... Bc6 $2 (33... b5) 34. Qc3 (34. e6 $142 Kg7 {[#]} 35. Be5 $1 {[%mdl 512]}) 34... Bb5 $2 (34... b5) 35. Nb6 { [%mdl 64] Double Attack. White is clearly winning.} Qg4 36. Nxc8 Bxf1 37. exf6 {Intending f7+ and mate.} Kg8 38. Ne7+ {Weighted Error Value: White=0.32/ Black=0.46} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.15"] [White "Agibileg, Uurtsaikh"] [Black "Sanal, Vahap"] [Result "1/2-1/2"] [ECO "E20"] [WhiteElo "2413"] [BlackElo "2546"] [Annotator "TA"] [PlyCount "95"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,95,27,21,36,26,18,7,15,9,16,1,7,14,27,10,87,91,95,88,89,-9,45,-12, -12,-12,-25,-39,10,0,17,-94,45,39,35,0,51,54,53,35,40,0,0,0,0,0,0,0,0,-7,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. f3 Bb4+ 4. Nc3 d5 5. a3 Bd6 6. e4 c5 {E20: Nimzo-Indian: 4 g3 and 4 f3.} 7. cxd5 cxd4 8. Qxd4 exd5 9. Bg5 Nc6 10. Qd2 {[#]} h6 $146 ({ Predecessor:} 10... d4 11. Nd5 Be6 12. Bc4 Be7 13. Nxe7 Qxe7 14. Bb5 Rd8 15. Rc1 O-O 16. Ne2 d3 17. Bxc6 dxe2 18. Qxe2 bxc6 {0-1 (95) Aschenbrenner,R (2230) -Hoelzl,F (2393) Oberpullendorf 2002}) 11. Bxf6 Qxf6 12. Nxd5 Qd8 (12... Qh4+ $11 13. g3 Bxg3+ 14. hxg3 Qxh1 15. Nc7+ {[%mdl 64] Double Attack} Kf8 16. Nxa8 Qxg1) 13. O-O-O $16 Be6 14. Ne2 O-O 15. Nd4 (15. Nef4 $16) 15... Be5 ({Better is} 15... Bxd5 $11 16. exd5 Nxd4 17. Qxd4 Bxh2) 16. Nb3 (16. Nb5 $1 $14) 16... Bxd5 $11 17. exd5 {[#]} Qb6 18. Bc4 Ne7 {[%mdl 1024] Black has compensation.} 19. Kb1 Nf5 {Hoping for ...Nd6.} 20. Bd3 Nd6 (20... Ne3 $17 21. Rde1 Qxb3 22. Rxe3 Bf4) 21. Ka2 a5 {[%CAl Ba7a5,Ba5a4][%mdl 32]} 22. Rhe1 Rfe8 (22... Bxh2 $11 23. Qe3 Qxe3 24. Rxe3 Rfc8) 23. f4 $14 Bf6 24. Rxe8+ Nxe8 25. Re1 a4 { The position is equal.} 26. Nc1 Qc5 27. Qb4 Qxd5+ 28. Bc4 Qxg2 {With the idea . ..Nd6!} 29. Nd3 Rd8 30. Ne5 Nd6 31. Rd1 Nxc4 32. Rxd8+ Bxd8 33. Qxc4 Bf6 34. Qxf7+ Kh7 35. h4 b5 36. h5 Qc2 37. Qd7 Qc5 38. Qf5+ Kg8 39. Qe6+ Kh7 40. Qf5+ Kg8 41. Qe6+ Kh7 42. Nd7 Qxh5 43. f5 {aiming for Qxf6.} Qg4 44. Nf8+ Kh8 { [#] Strongly threatening ...Qc4+.} 45. Ng6+ Kh7 {And now ...Qc4+ would win.} 46. Nf8+ Kh8 {Threatens to win with ...Qc4+.} 47. Ng6+ Kh7 {White must now prevent ...Qc4+.} 48. Nf8+ {Weighted Error Value: White=0.14/Black=0.17} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.16"] [White "Kamer, Kayra"] [Black "Bjerre, Jonas Buhl"] [Result "0-1"] [ECO "B54"] [WhiteElo "2355"] [BlackElo "2542"] [Annotator "TA"] [PlyCount "103"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,37,29,1,6,0,0,0,-6,0,0,0,0,0,0,0,0,0,18,19,18,2,38,0,0,0,16,12,39,39] } 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. a3 e5 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} 7. Nf5 {The main line 7.Nf5 scores better than 7.Nf3.} d5 8. Bg5 {[%CAl Rc3d5]} d4 {The position is equal.} 9. Bxf6 gxf6 10. Nb1 Bxf5 11. exf5 Qd5 12. Qd3 Nd7 { [%CAl Bb8d7,Bd7c5,Bc5a4,Ba4c3][%mdl 32] ...Nc5 is the strong threat.} 13. Nd2 Nc5 14. Qh3 h5 {White must now prevent ...Bh6.} 15. b4 {[#]} Na4 $146 ({ Predecessor:} 15... Ne4 16. Qf3 Nc3 17. Qxd5 Nxd5 18. Ne4 Be7 19. h4 a5 20. Bc4 Nc7 {1/2-1/2 (20) Sahin,O (2220)-Fernandez,D (2466) Novi Sad 2020}) 16. Bc4 Qc6 {Hoping for ...Nc3.} 17. Qb3 {[#] Threatens to win with b5.} O-O-O 18. O-O Nc3 19. a4 Qd6 20. b5 a5 21. Bxf7 Bh6 22. Nb1 Ne4 23. Na3 Kb8 24. b6 Rc8 25. Nc4 Qc5 26. Be6 Rc6 27. Qa3 Ng5 28. Qxc5 Rxc5 29. Nd6 Rc6 30. Nf7 Nxf7 31. Bxf7 Rxc2 32. Bxh5 Bf4 33. g3 Bxg3 34. hxg3 Rxh5 35. Rab1 Rxf5 36. Rb5 Kc8 37. f4 Kd7 38. Rxa5 Ke6 39. Rb5 d3 40. Rd1 d2 41. Kf2 Rh5 42. Kg2 Ra2 43. g4 Rh7 44. fxe5 Rxa4 45. Rb2 Kxe5 46. g5 Rg7 47. Rdxd2 Rxg5+ 48. Kh3 Rg1 49. Rg2 Rxg2 50. Rxg2 Kd6 51. Rd2+ Ke6 52. Rg2 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.17"] [White "Asadli, Vugar"] [Black "Ahmadzada, Ahmad"] [Result "1-0"] [ECO "A36"] [WhiteElo "2572"] [BlackElo "2431"] [Annotator "RC"] [PlyCount "97"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] [TimeControl "40/5400+30:900+30"] {[%evp 0,24,25,-25,-8,-16,15,21,17,40,21,13,60,37,43,42,41,9,43,8,11,-2,18,19, 24,29,31]} 1. c4 {[%emt 0:00:05]} Nf6 {[%emt 0:00:15]} 2. Nc3 {[%emt 0:00:20]} c5 {[%emt 0:00:09]} 3. g3 {[%emt 0:00:30]} b6 {[%emt 0:00:05]} 4. Bg2 {[%emt 0: 02:02]} Nc6 {[%emt 0:00:06]} 5. e4 {[%emt 0:02:58]} Qc7 {[%emt 0:05:39]} 6. Nge2 {[%emt 0:03:05]} e6 {[%emt 0:01:32]} 7. O-O {[%emt 0:01:28]} Bb7 {[%emt 0: 02:44]} 8. d3 {[%emt 0:05:44]} d6 {[%emt 0:06:16]} 9. a3 {[%emt 0:02:22]} Be7 { [%emt 0:02:05]} 10. h3 {[%emt 0:03:14]} h5 {[%emt 0:03:05]} 11. Rb1 {[%emt 0: 02:21]} a6 {[%emt 0:03:03]} 12. b4 {[%emt 0:04:06]} O-O {[%emt 0:13:54]} 13. f4 cxb4 14. axb4 Nxb4 15. Be3 a5 16. Nb5 Qd8 17. Nec3 Nd7 18. Qxh5 Nxd3 19. Rfd1 N7c5 20. Qe2 Nb4 21. e5 d5 22. f5 Bg5 23. Nd6 Bxe3+ 24. Qxe3 d4 25. Qf4 Nbd3 26. Qxd4 Bxg2 27. Kxg2 f6 28. Rxd3 fxe5 29. Qxe5 Nxd3 30. Qxe6+ Kh8 31. Rd1 Rf6 32. Nf7+ Rxf7 33. Qxf7 Qd4 34. Qh5+ Kg8 35. Qf3 Rd8 36. Nd5 Qb2+ 37. Kg1 Ne5 38. Qh5 Rd7 39. Ne7+ Kf8 40. Ng6+ Nxg6 41. Rxd7 Qc1+ 42. Rd1 Qe3+ 43. Kf1 Ne5 44. Rd8+ Ke7 45. Qe8+ Kf6 46. Qf8+ Kg5 47. Qxg7+ Kxf5 48. Qh7+ Ke6 49. Re8+ 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.18"] [White "Pichot, Alan"] [Black "Mohammad Nubairshah Shaikh"] [Result "1-0"] [ECO "B12"] [WhiteElo "2630"] [BlackElo "2436"] [Annotator "ChessBase"] [PlyCount "129"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] [TimeControl "40/5400+30:900+30"] {[%evp 0,10,25,37,69,63,57,55,88,43,34,21,0]} 1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. a3 Nc6 6. Nf3 Bxc5 7. b4 Bb6 8. Bb2 f6 9. Nbd2 a5 10. b5 Nxe5 11. Nxe5 fxe5 12. Qh5+ Kf8 13. Qxe5 Nf6 14. Be2 Bc7 15. Qg5 h6 16. Qe3 e5 17. Bxe5 Bxe5 18. Qxe5 Kf7 19. Qf4 Re8 20. Kf1 g5 21. Qd4 Bf5 22. h4 g4 23. Bd3 Bxd3+ 24. cxd3 Rc8 25. Kg1 Qd6 26. Nc4 Qe6 27. Ne3 Qe5 28. Qxe5 Rxe5 29. Kh2 g3+ 30. Kxg3 d4 31. Nc4 Rg8+ 32. Kf3 Rf5+ 33. Ke2 Ke6 34. g3 Nd5 35. Rhe1 Kd7 36. Kf1 Rxg3 37. Re5 Rgf3 38. Rxf5 Rxf5 39. Nxa5 Ne3+ 40. Ke2 Nc2 41. Ra2 Re5+ 42. Kd1 Ne1 43. Nc4 Re6 44. a4 Nxd3 45. Rd2 Re1+ 46. Kc2 Nb4+ 47. Kb3 Rb1+ 48. Nb2 Nd5 49. Rxd4 Kd6 50. Rd1 Rxd1 51. Nxd1 Nf4 52. Kc4 Ng6 53. h5 Nf4 54. Ne3 Nxh5 55. Nf5+ Ke5 56. Nxh6 b6 57. a5 bxa5 58. b6 Kd6 59. Kb5 Nf6 60. Nf5+ Kd7 61. Nd4 Ne4 62. f3 Nc3+ 63. Kxa5 Nd5 64. Ka6 Kc8 65. Ka7 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.19"] [White "Markus, Robert"] [Black "Stukan, Martin"] [Result "1/2-1/2"] [ECO "E46"] [WhiteElo "2600"] [BlackElo "2376"] [Annotator "TA"] [PlyCount "69"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,69,0,0,0,0,0,0,0,21,12,15,16,25,9,19,0,26,-1,3,7,11,8,6,6,6,6,6,7,17, 5,6,0,0,0,0,0,0,0,0,0,0,-54,0,-7,0,-8,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd2 b6 6. Nf3 c5 7. dxc5 Bxc5 8. Bd3 Bb7 9. O-O d5 10. cxd5 Nxd5 11. Nxd5 {E43: Nimzo-Indian: Rubinstein: 4...b6.} Qxd5 12. Qc2 Qh5 {[#]} 13. Be4 $146 ({Predecessor:} 13. Be2 Bd6 14. h3 Nd7 15. Qd3 Bd5 16. Nd4 Qe5 17. f4 Qe4 18. Qxe4 Bxe4 19. Bf3 {1/2-1/2 (55) Sandvik,A-Torsvik,C Norway 1992}) 13... Bxe4 14. Qxe4 Nd7 {[%CAl Bb8d7,Bd7f6,Bf6d5][%mdl 32]} 15. Bc3 Qg6 16. Qb7 Nf6 17. Rfd1 Qe4 {[#]} 18. Rd7 Qxb7 (18... Rfb8 19. Qxe4) 19. Rxb7 Nd5 20. Bd4 Bxd4 21. Nxd4 Rfb8 22. Rxb8+ Rxb8 $11 {[%mdl 4096] Endgame KRN-KRN} 23. Rc1 Kf8 24. a3 e5 25. Nf3 f6 26. Rd1 Ne7 27. Rd7 a5 28. g4 Rc8 29. Rb7 Nd5 30. b4 (30. Nh4 $11) 30... axb4 (30... a4 {keeps more tension.} 31. Ra7 b5 32. Nh4 Rc3 33. Nf5 Rxa3 34. Ra8+ Kf7) 31. axb4 {The position is equal.} Rc4 32. g5 Rxb4 33. gxf6 gxf6 34. Rxh7 Ne7 35. Kg2 {A rather calm draw. Weighted Error Value: White=0.08/Black=0.06} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.20"] [White "Pap, Misa"] [Black "Puranik, Abhimanyu"] [Result "0-1"] [ECO "C48"] [WhiteElo "2431"] [BlackElo "2589"] [Annotator "TA"] [PlyCount "110"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,110,0,0,30,31,50,24,52,24,27,19,17,20,18,11,17,17,16,9,16,20,16,17, 19,18,23,8,25,6,17,0,4,0,14,3,9,9,8,10,13,0,16,19,47,8,7,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,-6,0,-6,0,0,0,0,0,0,0,-18,-14,-21,-26,-155,-134,-183,-183,-187,-182,-331, -321,-325,-340,-552,-550,-5531,-5398,-5065,-5065,-991,-6033,-5414,-2272,-29986, -29987,-29988,-29989]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Nxd4 exd4 6. e5 dxc3 7. exf6 Qxf6 8. dxc3 Qe6+ $5 {[%mdl 4] Exploring less charted territory. C48: Four Knights: 4 Bb5, replies other than 4...Bb4.} 9. Be3 {[#]} Bd6 $146 ({Predecessor:} 9... Bc5 10. O-O Bxe3 11. Re1 O-O 12. Rxe3 Qb6 13. Bc4 g6 14. Qd4 Qxd4 15. cxd4 Rd8 16. Rae1 {1/2-1/2 (45) Medvegy,Z (2452)-Gyimesi,Z (2553) Eppingen 2004}) 10. Qh5 O-O {White has an edge.} 11. O-O (11. O-O-O { seems wilder.} Be5 12. Kb1 d6 13. h3 a6 14. Bd3) 11... Qe5 12. Qxe5 Bxe5 13. Rfe1 d6 14. Bg5 a6 15. Bd3 h6 16. Be3 Be6 17. f4 Bf6 18. Bd4 Bxd4+ 19. cxd4 Rfe8 20. Kf2 Kf8 21. Be4 c6 22. a4 a5 23. Ra3 Bc4 24. Rc3 d5 25. Bf3 Rxe1 26. Kxe1 $11 {[%mdl 4096] Endgame KRB-KRB} Ke7 27. Kd2 Ba6 28. Re3+ Kd6 29. Bh5 g6 30. Bg4 Rg8 31. Re5 b6 32. b3 Bf1 33. Bf3 Ba6 34. f5 Bc8 35. fxg6 fxg6 36. h4 Rf8 37. c3 Be6 38. Ke3 b5 39. axb5 cxb5 40. c4 dxc4 41. Rxb5 {[#] Strongly threatening Rb6+.} cxb3 42. d5 Bd7 43. Rxb3 a4 {[%CAl Ba5a4,Ba4a3][%mdl 32]} 44. Rb1 $2 (44. Rb6+ $11 Kc5 45. Rb7) 44... a3 45. Rb6+ Kc5 46. Ra6 {[#]} Kb4 { Hoping for ...Ba4.} 47. d6 (47. Kd2 {keeps fighting.}) 47... Bb5 $19 48. Ra7 Rd8 49. Bd5 $2 (49. Kd2) 49... Rxd6 50. Bf7 Rd3+ 51. Ke4 Rd7 52. Rxd7 Bxd7 53. Kd3 Ba4 54. Kd2 Bb3 55. Bxg6 a2 {Weighted Error Value: White=0.49/Black=0.05} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.21"] [White "Fier, Alexandr"] [Black "Perunovic, Miodrag"] [Result "0-1"] [ECO "B76"] [WhiteElo "2569"] [BlackElo "2425"] [Annotator "TA"] [PlyCount "160"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 22,160,27,31,30,27,35,22,20,25,28,25,31,29,8,21,36,30,44,19,0,0,0,0,31, 0,21,-85,-77,-177,-203,-291,-297,-291,-281,-291,-292,-356,-285,-306,-294,-448, -323,-567,-318,-314,-290,-324,-286,-344,-338,-309,-235,-243,-258,-265,-254, -233,-217,-283,-275,-295,-283,-274,-196,-340,-271,-257,-203,-288,-14,-42,-37, -67,-67,-62,-62,-79,-61,-61,-30,-45,-46,-106,-96,-481,-468,-542,-542,-542,-94, -542,-542,-542,-542,-542,-386,-542,-493,-542,-542,-938,-950,-995,-938,-1294, -958,-1539,-1480,-1553,-1152,-29977,-29978,-29977,-29976,-29986,-29979,-29980, -29981,-29981,-29982,-29986,-29987,-29987,-29985,-29985,-29985,-29985,-29986, -29986,-29987,-29988,-29989,-29990,-29991,-29993,-29994,-29994,-29995,-29995, -29996]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6 9. O-O-O d5 10. Nxc6 bxc6 11. Bh6 {is more profitable than 11. exd5 at the moment.} Bxh6 12. Qxh6 Rb8 {B76: Sicilian Dragon: Yugoslav Attack, 9 g4 and 9 0-0-0.} 13. e5 Nd7 14. Rd4 {White wants to mate with Rh4.} Re8 $1 { The position is equal.} 15. e6 fxe6 16. Bd3 {Intending Bxg6! and mate.} Nf8 17. h4 e5 18. Ra4 Qd6 19. h5 {hxg6 is the strong threat.} Bf5 {[#]} 20. Bxf5 $146 ( {Predecessor:} 20. hxg6 Bxg6 21. Bxg6 hxg6 22. f4 e4 23. g4 Qf6 24. Rxa7 Qg7 25. Qxg7+ Kxg7 26. Ne2 {1-0 (78) Griffith,K (2346)-Kruckenhauser,A (2283) Chess.com INT 2020}) 20... gxf5 21. Qg5+ Kh8 22. Qxf5 Ra8 (22... a5 $5) 23. Ra6 {next Nb5 is good for White.} Reb8 24. Rh4 (24. Na4 $11) 24... Ne6 $17 25. Rxc6 Ng7 $19 {[%mdl 64] Zwischenzug} ({Inferior is} 25... Qxc6 26. Qxe5+ Kg8 27. Nxd5 $11) 26. Qg5 (26. Rxd6 Nxf5 27. Rxd5 Nxh4 $19) (26. Qg6 $142 Qd7 27. Qh6) 26... Qxc6 27. h6 {[%csl Gh6][%CAl Rg5g7]} Ne8 28. Qxe5+ Nf6 $1 ({But not} 28... Qf6 $2 29. Rf4 $1 $18 {[%mdl 512]}) 29. Qxe7 {[%csl Gh6][%CAl Re7g7]} Rb7 30. Qe5 {With the idea Nxd5!} Re8 31. Qg5 (31. Qd4 $142) 31... Qe6 ({Not} 31... Qb6 32. b3 $19) 32. b4 $2 (32. Nd1) 32... Qe3+ 33. Qxe3 Rxe3 34. Kd2 Re6 35. a4 Ng8 36. b5 Nxh6 37. Nxd5 Rd7 38. c4 Nf5 39. Re4 Rg6 40. Kc3 Rxg2 41. Re5 Rf7 42. c5 Rg3 43. b6 (43. c6 {was worth a try.}) 43... Rxf3+ 44. Kb4 Nd4 {Hoping for ...Nc6+.} 45. Kc4 (45. Re4 $142 Nc2+ 46. Kb5) 45... Ra3 $2 46. Kxd4 (46. Re8+ {looks sharper.} Kg7 47. Kxd4 Rxa4+ 48. Ke5 axb6 49. c6) 46... Rxa4+ $11 { [%mdl 4096] Endgame KRR-KRN} 47. Kc3 axb6 48. cxb6 Kg7 49. Kb3 Ra1 50. Kc4 Rb1 51. Kc5 Kg6 52. Kc6 {White is now going downhill.} ({White should play} 52. Re6+ $1 $15 Kf5 53. Re2) 52... h5 $17 53. Re8 $2 {[%mdl 8192]} (53. Re6+ $17 { is more resistant.} Kf5 54. Re2) 53... h4 $19 54. Rh8 Kg5 55. Rg8+ {[#]} Kf5 $2 (55... Kh5 $1 $19 {and Black stays clearly on top. Strongly threatening ...h3.} 56. Rb8 Rg7 57. Rh8+ Kg4 58. Nf6+ Kh3) 56. Ne3+ $2 {[%mdl 8192]} (56. Rg2 $17 { nothing else works.}) 56... Ke4 57. Nc4 {Black must now prevent Nd2+.} Kf4 58. Rh8 Kg3 59. Rg8+ {[#]} (59. Nd6 {is a better defense.} Rf6 60. Rd8) 59... Kh2 $1 60. Rg6 h3 61. Nd6 Rf2 62. b7 Rc2+ 63. Kd7 Rg2 64. Rh6 Rg7+ 65. Kc6 Kg2 66. Rh5 h2 {Black mates.} 67. Nb5 Rg8 68. Kc7 Rc1+ 69. Kb6 h1=Q 70. Rxh1 Kxh1 71. Nc7 Rb1+ 72. Ka7 Rg2 73. b8=N Ra2+ 74. Nba6 Kg2 75. Nd5 Ra3 76. Nf4+ Kf3 77. Ne6 Ke4 78. Nec7 Ke5 79. Na8 Kd6 80. Nb6 Kc6 {Weighted Error Value: White=0.69/ Black=0.35} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.22"] [White "Perunovic, Milos"] [Black "Milanovic, Danilo"] [Result "1-0"] [WhiteElo "2567"] [BlackElo "2416"] [Annotator "TA"] [PlyCount "1"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 1,1,13]} 1. e4 {Opponent absent} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.23"] [White "Suleymanli, Aydin"] [Black "Babazada, Khazar"] [Result "1/2-1/2"] [ECO "A45"] [WhiteElo "2560"] [BlackElo "2409"] [Annotator "TA"] [PlyCount "121"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,121,2,-13,0,-11,-2,-9,0,-8,0,0,0,0,11,1,8,0,0,0,30,24,21,17,22,18,23, 18,18,14,23,23,18,11,21,12,12,11,33,24,35,34,33,32,47,25,53,34,64,50,54,33,58, 62,79,74,121,121,127,137,127,127,213,218,438,384,352,145,115,65,47,-43,-36,-36, -37,-37,-36,-36,-36,-36,-37,-38,-39,-41,-42,-95,-95,-101,-92,-135,-101,-162, -154,-154,-150,-169,-66,-66,-66,-68,-17,-29,-2,-8,-4,-5,0,0,0,0,0,0,93,0]} 1. d4 Nf6 2. Bf4 e6 3. e3 d5 4. Nf3 Bd6 5. Bg3 O-O 6. Nbd2 c5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 7. c3 Qc7 8. Ne5 Nbd7 { [%CAl Rd7e5,Bb8d7,Bd7f6,Bf6d5][%mdl 32] The position is equal.} 9. f4 Ne4 10. Nxe4 dxe4 11. Nc4 Nf6 12. Nxd6 Qxd6 {[#]} 13. Bh4 $146 ({Predecessor:} 13. Be2 Nd5 14. Qd2 cxd4 15. Qxd4 Qb6 16. Qxb6 axb6 17. Kf2 Bd7 18. Rhd1 Bc6 19. c4 { 1-0 (63) Stefanova,A (2481)-Buksa,N (2410) Monte Carlo 2019}) 13... Nd5 14. Qd2 cxd4 15. Qxd4 Qb6 16. Qxb6 axb6 17. Kf2 Bd7 18. c4 Nc7 19. Be7 Rfc8 20. Be2 b5 21. Rhd1 Bc6 22. b3 bxc4 23. bxc4 Ra4 24. Rd2 f6 25. a3 Kf7 26. Bd6 Raa8 27. Raa2 Na6 28. Rd4 Re8 29. g4 Nb8 30. g5 f5 31. Rad2 Nd7 32. Bb4 Nf8 33. h4 e5 34. fxe5 Rxe5 35. Kg3 h6 (35... Re7 $16 36. Bxe7 Kxe7) 36. gxh6 $18 Ne6 $2 ( 36... gxh6 {was called for.} 37. Bh5+ Ng6 38. Rd7+ Bxd7) 37. Rd6 gxh6 {[#]} 38. Kh2 (38. R2d5 $1 $18 {[%mdl 512] and the rest is easy.} Bxd5 39. cxd5) 38... f4 $16 39. Bc3 fxe3 40. Rb2 (40. Bxe5 $14 exd2 41. Bh5+ Ke7 42. Rxd2) 40... Rf5 $15 {White must now prevent ...Rf2+.} 41. Bg4 Rf2+ 42. Rxf2+ $1 exf2 43. Bxe6+ Ke7 44. Bb4 $1 {[#]} f1=Q 45. Rd1+ $1 Kxe6 46. Rxf1 {[%mdl 4096] Endgame KRB-KRB} Rd8 47. Rg1 (47. Kg3 $15) 47... Kf5 $17 48. Rf1+ Kg4 $1 49. Rf6 e3 { Hoping for ...Rd1.} ({Don't go for} 49... Kxh4 $2 50. Rxc6 $1 Kg4 51. Rxh6 $18) 50. Rg6+ (50. Rxh6 $17 {was worth a try.} Be4 51. Rd6 Rxd6 52. Bxd6) 50... Kf3 $19 {...Rd2+! is the strong threat.} ({But not} 50... Kxh4 $2 51. Rxc6 $1 Kg4 52. Rxh6 $18) 51. Rf6+ {[#]} Ke2 $1 52. Bc5 Rd2 (52... h5 $19 53. Re6 Rd3) 53. Kg3 $1 $15 Kd3 $1 54. Rxh6 Rg2+ ({Better is} 54... Rf2 $1 $15) 55. Kf4 $11 e2 ( 55... Rf2+ $5 56. Kg5 Rf3 $17) 56. Re6 $1 Rh2 57. Re3+ Kd2 58. Bb4+ Kd1 59. Kg4 Rh1 60. Rd3+ Kc2 (60... Kc1 $11 {remains equal.}) 61. Re3 {White used his chance. Weighted Error Value: White=0.15/Black=0.18} ({White should play} 61. Rd2+ $16 Kb3 62. Rxe2) 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.24"] [White "Bharath Subramaniyam H"] [Black "Zanan, Evgeny"] [Result "0-1"] [ECO "C34"] [WhiteElo "2437"] [BlackElo "2531"] [Annotator "TA"] [PlyCount "82"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,82,-62,-56,-59,-34,-45,-38,-72,-54,-70,-29,-44,-27,-74,-82,-143,-151, -181,-157,-166,-184,-290,-284,-443,-454,-438,-440,-530,-533,-504,-486,-487, -492,-468,-456,-583,-402,-461,-441,-437,-452,-447,-434,-448,-437,-441,-390, -702,-695,-681,-656,-613,-583,-1577,-1416,-5485,-707,-629,-623,-580,-555,-942, -939,-29941,-11987,-12850,-1356,-8119,-8119,-6503,-6037,-7781,-6319,-29987, -29988]} 1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Nh5 5. Qe2 Be7 6. d4 {C34: King's Gambit Accepted: 3 Nf3: 3...Nf6 and 3...d6.} g6 7. Nc3 d5 8. exd6 { Black is slightly better.} cxd6 {[#]} 9. Bd2 $146 ({Predecessor:} 9. Qb5+ Bd7 10. Qxb7 Nc6 11. Bb5 Rb8 12. Qa6 Rb6 13. Qa4 Bh4+ 14. Kd1 a6 15. Bxa6 {1/2-1/2 (36) Mukanov,S (2250)-Cummings,D (2331) Bled 2018}) 9... O-O 10. O-O-O Bf5 11. Qf2 Nc6 {Black keeps a firm grip on the game.} 12. Nd5 (12. d5 $142 Ne5 13. Be2 ) 12... Rc8 $17 13. Bc4 {[#]} Nb4 $1 {[%mdl 512]} 14. Bxb4 {Strongly threatening Bb3.} Rxc4 15. c3 (15. Bc3 {might work better.} Nf6 16. Qe2 Nxd5 17. Qxc4) 15... Nf6 $19 16. b3 (16. Qf1 {was worth a try.} Rc6 17. Qb5) 16... Nxd5 17. bxc4 Ne3 {[%mdl 64] Double Attack} 18. Rde1 a5 19. Ba3 Nxc4 20. Bb2 Bf6 21. Nd2 {[#]} Bh4 $1 {[%mdl 64] Skewer} 22. Qe2 (22. Qf3 Nxd2) 22... Nxb2 23. Kxb2 Bxe1 24. Rxe1 Qb6+ 25. Ka1 Rc8 26. Qf3 a4 {[%CAl Ba5a4,Ba4a3][%mdl 32] } 27. Rc1 Qa5 28. Nb1 $2 (28. a3) 28... Bxb1 29. Kxb1 {[%mdl 4096] Endgame KQR-KQR} Qb5+ 30. Ka1 a3 {[%csl Ga3][%CAl Rb5b2]} 31. Rb1 Qc4 {( -> ...Re8)} 32. Rxb7 Qxc3+ (32... Re8 $142 33. Rb1 Kg7 34. h4 Re2 35. Qxe2 Qxe2 36. h5 gxh5 37. g4 Qe3 38. Rb8 Qe1+ 39. Rb1 Qxc3+ {[%mdl 64] Double Attack} 40. Rb2 Qxb2#) 33. Qxc3 Rxc3 {KR-KR} 34. Kb1 Re3 35. Rc7 Re2 36. Rc2 Re1+ 37. Rc1 Rxc1+ 38. Kxc1 g5 39. Kc2 g4 40. Kd3 d5 41. h3 f3 {Weighted Error Value: White=1.12/ Black=0.24} 0-1 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.25"] [White "Bogosavljevic, Boban"] [Black "Raja Rithvik R"] [Result "1/2-1/2"] [ECO "E10"] [WhiteElo "2530"] [BlackElo "2408"] [Annotator "TA"] [PlyCount "109"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,109,11,12,13,20,20,18,8,20,16,19,6,7,-18,-30,-17,-8,-8,-7,-11,-10,-8, 0,0,0,-13,-5,-17,-8,-23,-24,-35,-26,-64,-37,-59,-20,-31,0,-12,-12,-12,0,0,0,6, 198,208,183,83,119,120,109,74,64,0,0,-5,0,0,0,0,0,-6,0,0,0,-6,0,-6,-3,-3,-3,-2, -2,0,0,0,0,-52,-51,-52,-47,-47,0,-60,-52,-52,-47,-43,0,-47,-47,-47,-47,-47,-47, -47,-47,-47,-47,-47]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. e3 a6 5. b3 b6 6. Bb2 { D30: Queen's Gambit Declined: Systems without Nc3.} Bb7 7. Bd3 Bd6 8. Nbd2 { The position is equal.} O-O 9. O-O Nbd7 {[%CAl Bb8d7,Bd7c5,Bc5d3][%mdl 32]} 10. Ne5 Ne4 11. Qe2 Bxe5 12. dxe5 Nxd2 13. Qxd2 Nc5 {[#]} 14. Rad1 $146 ({ Predecessor:} 14. Rfd1 Nxd3 15. Qxd3 Qg5 16. cxd5 exd5 17. f4 Qg4 18. Rd2 a5 19. Rf2 a4 20. Rf3 {1/2-1/2 (56) Dumitrascu,C (2090)-Florescu,C (2226) Sarata Monteoru 2011}) 14... Nxd3 15. Qxd3 Qe7 16. cxd5 Bxd5 17. Qe2 Rfd8 18. Rc1 Be4 {[#] Threatens to win with ...Bd3.} 19. Qg4 Bd3 20. Rfe1 Rd7 21. h4 Rad8 22. e4 c5 23. Re3 Bb5 24. Rg3 {[%csl Gg3][%CAl Rg4g7] [#]} Qf8 25. a4 Bc6 26. a5 bxa5 27. Ba3 f5 $2 (27... Rd3 $1 $11 {and Black has nothing to worry.}) 28. exf6 $1 $18 Qxf6 29. Bxc5 (29. Rxc5 $18 {is more deadly.} Bb5 30. Kh2) 29... Bb7 30. Be3 {aiming for Bg5.} Qe5 31. Bg5 Rf8 32. Rf3 ({White should play} 32. Rc4 $14) 32... Qxe4 $11 33. Rxf8+ Kxf8 34. Qg3 h6 35. Be3 Kg8 36. Kh2 Bd5 37. Rc3 Kh7 38. f3 Qg6 39. Qe5 Qf6 40. Qxf6 gxf6 {[%mdl 4096] Endgame KRB-KRB} 41. Bb6 Rb7 42. Bxa5 Rxb3 43. Rc7+ Kg6 44. Bc3 (44. h5+ $1 $11 Kxh5 45. Rg7 Bxf3 46. gxf3) 44... h5 $15 45. Kg3 Ra3 46. Bb4 Rb3 47. Bf8 (47. Bc3 $11) 47... e5 48. Rd7 Rd3 49. Kf2 e4 {[%CAl Re4f3]} 50. fxe4 (50. g4 {with more complications.} f5 51. g5 Rxf3+ 52. Kg2 Bf7 53. Rd6+) 50... Bxe4 {Black is slightly better.} 51. Rxd3 Bxd3 52. Bb4 Kf5 53. Ke3 Bb5 54. Bc3 Ke6 55. g3 {Weighted Error Value: White=0. 11/Black=0.14} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.26"] [White "Perez Gormaz, Matias"] [Black "Caspi, Israel"] [Result "1/2-1/2"] [ECO "A80"] [WhiteElo "2413"] [BlackElo "2503"] [Annotator "NA RC"] [PlyCount "142"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] [TimeControl "40/5400+30:900+30"] {[%evp 0,2,16,9,75]} 1. d4 f5 {[%emt 0:00:17]} 2. c4 Nf6 3. Nc3 g6 4. g3 Bg7 5. Bg2 O-O 6. Nf3 d6 7. O-O c6 8. Qb3 Na6 9. Bf4 Nh5 10. c5+ Kh8 11. cxd6 Nxf4 12. dxe7 Nxe2+ 13. Nxe2 Qxe7 14. Nf4 Qb4 15. Qxb4 Nxb4 16. a3 Na6 17. Rfe1 Bf6 18. Ne5 Nc7 19. d5 Nxd5 20. Nxd5 cxd5 21. Bxd5 Kg7 22. Rac1 Bd8 23. Nd3 Rb8 24. Nf4 Kh6 25. h4 Bd7 26. Be6 Bc6 27. Bd5 Bd7 28. Be6 Bb5 29. Bc4 Bc6 30. Bd5 Bd7 31. b4 Rf6 32. Be6 Bc6 33. Bd5 Ba4 34. Ne6 Bb6 35. Ng5 Bd8 36. Nf7+ Kg7 37. Nxd8 Rxd8 38. Rc7+ Kf8 39. Bxb7 Rf7 40. Rxf7+ Kxf7 41. Re5 Rd7 42. Ra5 Bb3 43. Bc6 Rc7 44. Bd5+ Bxd5 45. Rxd5 a6 46. Rd6 a5 47. bxa5 Rc5 48. a6 Ra5 49. Rb6 Rxa3 50. Kg2 Kg7 51. Rb7+ Kf6 52. a7 h6 53. Rb6+ Kg7 54. Rb7+ Kf6 55. Rh7 Ra2 56. Kf3 Ra3+ 57. Ke2 f4 58. g4 f3+ 59. Kd2 Ke5 60. Rf7 Ke6 61. Rh7 Ke5 62. Rxh6 Rxa7 63. Rxg6 Ra2+ 64. Ke3 Ra3+ 65. Kd2 Ra2+ 66. Kd3 Kf4 67. g5 Rxf2 68. Rf6+ Kg4 69. g6 Rg2 70. g7 Kh5 71. Rf7 Kxh4 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.27"] [White "Erenberg, Ariel"] [Black "Can, Isik"] [Result "1/2-1/2"] [ECO "D17"] [WhiteElo "2494"] [BlackElo "2394"] [Annotator "TA"] [PlyCount "173"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 25,173,0,0,-52,-48,-39,-32,-43,-43,-60,-37,-45,-3,-70,0,0,0,0,0,0,0,-17, -3,-17,26,26,23,20,21,0,0,0,0,0,0,0,0,0,2,2,5,10,8,0,10,0,11,0,0,0,0,0,63,63, 63,63,63,63,63,71,85,85,85,85,85,48,85,85,85,48,85,85,85,85,85,63,63,63,63,63, 63,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 12846,0,0,0,0,0,0,0,0,0,0,0,0,0,-28000,-28000,-28000,-28000,-28000,-28000, -28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000,-28000, -28000]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. Ne5 Nbd7 7. Nxc4 Nb6 8. Ne5 a5 9. e3 Nbd7 10. Nc4 Qc7 11. Qb3 e6 12. Be2 Bb4 13. O-O {[#]} O-O $146 ({Predecessor:} 13... Ng4 14. Bxg4 Bxg4 15. f3 Bh5 16. e4 O-O 17. Rd1 Rfb8 18. Be3 b5 19. axb5 Bxc3 20. Qxc3 Rxb5 21. b4 Bg6 22. Rxa5 Raxa5 23. bxa5 Rh5 24. Ne5 Nxe5 25. dxe5 f6 26. Bb6 Qe7 27. a6 {1-0 (25) Da Cruz,W (2155)-Freitas, J (1862) Sao Jose dos Pinhais 2010}) 14. Bd2 {D18: Slav Defence: 5 a4 Bf5 6 e3. } (14. f4 $11) 14... e5 $1 $15 15. h3 Rfe8 16. Rfe1 {Black is slightly better.} Rad8 17. Rac1 h6 18. Bf1 Qb8 19. Red1 (19. Nb1 $11) 19... Bg6 (19... exd4 $15 20. exd4 Nf8) 20. Ne2 $11 Bxd2 21. Rxd2 Ne4 22. Rdd1 exd4 23. exd4 Qc7 24. Nc3 Nd6 25. Nxd6 Qxd6 26. d5 Qb8 27. Qa3 Nf6 {[%CAl Rf6d5]} 28. dxc6 bxc6 29. Qc5 Qxb2 30. Qxa5 Rxd1 31. Rxd1 Bc2 32. Rd8 Qa1 $1 33. Rxe8+ Nxe8 {[#]} 34. Qd8 Qxc3 (34... Kf8 35. Qd4) 35. Qxe8+ Kh7 36. Qxf7 {Strongly threatening Qa2.} Qa1 37. Qc4 Bxa4 38. Kh2 {[#] Hoping for Bd3+.} Bb5 (38... Kh8 $11 39. Qa6 Qe5+ 40. g3 Bb5 41. Qa8+ Kh7) 39. Qe4+ $1 $14 g6 40. Bxb5 cxb5 {[%mdl 4096] Endgame KQ-KQ} 41. Qb7+ Qg7 42. Qxb5 Qc7+ 43. g3 h5 44. Kg2 Qe7 45. Qd5 Kg7 46. Kf1 Kh7 47. Qf3 Kg7 48. Qe3 Qd7 49. Kg2 Qb7+ 50. f3 Qb2+ 51. Qf2 Qe5 52. Qd2 Kh7 53. f4 (53. h4 $14) 53... Qe4+ $11 54. Kg1 Qe6 55. Kh2 Qf5 56. Qe2 Qf7 57. Qf3 Qa2+ 58. Kg1 Qb1+ 59. Kf2 Qa2+ (59... Qb6+ {keeps more tension.} 60. Kg2 Qb2+ 61. Qf2 Qb7+ 62. Kh2 Qe4) 60. Qe2 Qa7+ 61. Kg2 (61. Qe3 {keeps more tension.} Qa2+ 62. Qe2) 61... Qb7+ 62. Kh2 (62. Kf1 {seems wilder.} Qh1+ 63. Kf2 Qh2+ 64. Kf3 Qxh3 65. Qe7+) 62... Qf7 63. Qd2 Qf5 64. Qc1 Qd7 65. Qc3 Qf7 66. Qf3 Qa2+ 67. Qg2 Qf7 68. h4 Kh6 69. Qe4 Qa2+ 70. Kh3 (70. Kg1 {looks sharper.} Qd2 71. f5 gxf5 72. Qe6+ Kg7 73. Qxf5 Qe1+ 74. Kh2) 70... Qf2 71. Qg2 (71. g4 {with more complications.} hxg4+ 72. Kxg4 Qf1 73. Qf3 Qxf3+) 71... Qxg2+ 72. Kxg2 { And now Kf3 would win. K3P-KPP} Kg7 73. Kf2 Kf7 74. Ke3 Ke7 75. Kf3 Kf7 76. Ke4 Ke6 77. Kf3 {Black must now prevent Ke4.} (77. f5+ {is more complex.} gxf5+ 78. Kf4) 77... Kf7 78. g4 $2 {[%mdl 8192]} (78. Ke2 $11) 78... hxg4+ 79. Kxg4 { KPP-KP. Mate.} Kf6 80. Kg3 Ke6 81. Kf2 Kf6 82. Ke3 Ke6 83. Ke4 Kf6 84. Kf3 Kf5 85. Kg3 Ke6 86. Kg4 Kf6 87. Kg3 {[%mdl 32768] Black used his chance. Weighted Error Value: White=0.11/Black=0.09. An unexpected result.} 1/2-1/2 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.28"] [White "Radovanovic, Nikola"] [Black "Damljanovic, Branko"] [Result "1-0"] [ECO "E70"] [WhiteElo "2395"] [BlackElo "2501"] [Annotator "TA"] [PlyCount "97"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,97,32,43,54,36,35,68,70,66,67,60,69,89,43,114,120,114,88,91,61,78,58, 54,57,50,54,56,64,61,46,58,67,65,63,68,75,115,56,89,58,185,212,353,361,322,336, 426,424,422,402,457,454,441,435,643,634,622,630,695,715,708,708,738,714,810, 787,912,529,468,0,791,719,761,707,766,766,715,733,1281,1325,29970,29975,29974, 29967,29973,29968]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bd3 O-O 6. Nge2 Nc6 7. O-O Nd7 8. Be3 {E70: King's Indian: Miscellaneous lines with 4 e4, including 5 Nge2 and 5 Bd3 0-0 6 Nge2.} e5 {[%CAl Re5d4]} 9. d5 {[#]} Nb4 $146 ({Predecessor:} 9... Nd4 10. Bxd4 exd4 11. Nb5 Re8 12. Nbxd4 Nc5 13. f3 a5 14. Bc2 Bd7 15. Kh1 Qh4 16. Qd2 c6 17. Nc3 f5 18. dxc6 bxc6 {1/2-1/2 (116) Jumabayev,R (2637)-Swiercz,D (2649) Chess.com INT 2021}) 10. Bb1 $1 {White is slightly better.} a5 11. a3 Na6 12. b4 Qh4 13. Bd3 Nf6 (13... Bh6 $14) 14. f3 $16 Nh5 15. Rb1 Nf4 16. Kh1 ({Much worse is} 16. bxa5 $6 Nc5 $11) (16. g3 { looks sharper.} Nxe2+ 17. Qxe2 Qe7 18. Rfc1 Rd8 19. Qc2) 16... Qe7 17. Qd2 Nxd3 18. Qxd3 axb4 19. axb4 Bd7 20. Qd2 f5 21. exf5 Bxf5 22. Ne4 Bxe4 23. fxe4 Qh4 24. Ng3 {White stays focused until the end.} Qg4 {[#]} 25. Rxf8+ (25. c5 $1 $16 ) 25... Rxf8 26. Qe2 Qh4 ({Black should play} 26... Qxe2 $14 27. Nxe2 Rc8) 27. c5 $18 Bh6 (27... Nb8 {is a better defense.} 28. Qb5 Qg4 29. Qxb7 h5) 28. Bxh6 Qxh6 29. c6 Qg5 30. cxb7 Nb8 31. Qc4 Qd8 32. Rc1 Rf7 33. b5 Qf8 (33... Kg7 $142 34. h3 Qd7) 34. h3 h5 35. Kg1 Qh6 36. Nf1 Qf4 37. Rc2 Kg7 38. Qe2 Qh4 39. Qe3 Qd8 40. Qc3 Qh4 41. Qe3 (41. Nd2 $142) 41... Qd8 $1 42. Ra2 Rf8 43. Ra8 Qd7 44. Qe2 Qf7 45. Ne3 Qf4 46. Qf3 Qg5 {[#]} 47. Qxf8+ $3 {[%mdl 576] Remove Defender. White mates.} Kxf8 48. Rxb8+ Kg7 49. Nf1 {Weighted Error Value: White=0.30/ Black=0.52} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.29"] [White "Kourkoulos-Arditis, Stamatis"] [Black "Yankelevich, Lev"] [Result "1-0"] [ECO "D30"] [WhiteElo "2485"] [BlackElo "2389"] [Annotator "TA"] [PlyCount "95"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,95,27,29,13,25,8,27,27,27,28,38,33,32,5,6,14,13,0,23,12,6,0,0,4,30,22, 44,22,68,85,83,76,65,77,130,130,131,129,125,119,122,115,167,166,168,152,152, 152,152,154,156,141,179,170,172,170,255,177,250,248,324,325,410,435,435,435, 662,662,662,662,662,658,642,642,624,624,621,618,597,472,574,557,557,457,556, 483,517,401]} 1. d4 d5 2. c4 e6 3. Nf3 a6 4. Bg5 Be7 5. Bxe7 Qxe7 6. e3 { D30: Queen's Gambit Declined: Systems without Nc3.} Nf6 7. Nbd2 O-O 8. Rc1 { [#] White has an edge.} Nbd7 $146 ({Predecessor:} 8... Nc6 9. a3 Rd8 10. Be2 Ne4 11. O-O Bd7 12. cxd5 exd5 13. Nxe4 Qxe4 14. Bd3 Qe7 {1-0 (46) Kozul,Z (2595)-Agdestein,S (2560) Nova Gorica 2020}) 9. cxd5 e5 10. dxe5 Nxe5 11. Qb3 Rd8 12. Nxe5 Qxe5 13. Nf3 Qxd5 14. Bc4 $36 {[%mdl 2048] White is more active.} Qa5+ 15. Ke2 Rf8 16. Qc3 Qxc3 (16... Qb6 {is more complex.} 17. h3 c6 18. Rhd1 Bf5 19. Kf1 Rad8) 17. Rxc3 c5 18. Ne5 Nd7 19. Nxd7 {White leaves nothing to chance now.} Bxd7 {[#]} 20. Rd1 $1 {[%CAl Rd1d7]} Bc6 21. Bd5 {aiming for Bxc6. } Rfc8 (21... Rac8 $142) 22. Rxc5 $16 Bxd5 23. Rdxd5 {[%mdl 4096] Endgame KRR-KRR} Kf8 24. Kd2 Ke7 25. Re5+ Kd6 (25... Kf8 $16 26. Kd3 Rd8+ 27. Ke2 f6) 26. Rcd5+ $18 Kc6 27. Rd3 Re8 28. Red5 Re7 29. a4 {[%CAl Ba2a4,Ba4a5][%mdl 32]} Rae8 30. a5 Kc7 31. f3 Kc8 32. e4 Re5 {[#]} (32... Re6 {keeps fighting.} 33. Ke3 f6) 33. Rc3+ $1 Kb8 34. Rd7 f5 35. Rb3 ({Less strong is} 35. Rxg7 fxe4 36. Rb3 (36. Rxh7 exf3 37. Rxf3 Re2+ 38. Kc3 Rc8+ 39. Kb3 Rc5 $16) 36... Rd5+ 37. Ke3 exf3+ 38. Kxf3 b5 $18) 35... fxe4 36. Rbxb7+ Ka8 {White is clearly winning. } 37. fxe4 Rxe4 (37... Rxa5 $142 38. Ra7+ Kb8 39. Rdb7+ Kc8 40. Rxg7 Rb5 41. Ra8+ Rb8) 38. Ra7+ Kb8 {Black hopes to continue with ...Re2+.} 39. Rdb7+ Kc8 40. Rxg7 {[%CAl Ra7a8]} Re2+ 41. Kc1 {[%CAl Ra7a8]} Kb8 42. Rgb7+ Kc8 43. Rxh7 {[%CAl Ra7a8]} Kb8 44. Rhb7+ Kc8 45. Rg7 {[%CAl Ra7a8]} Kb8 46. Kb1 Rd8 47. Rgb7+ Kc8 48. Re7 {[%CAl Ra7a8] Weighted Error Value: White=0.07/Black=0.23} 1-0 [Event "Serbia Chess Open 2021"] [Site "Belgrade"] [Date "2021.07.07"] [Round "8.30"] [White "Raja Harshit"] [Black "Damjanovic, Vuk"] [Result "0-1"] [ECO "E62"] [WhiteElo "2484"] [BlackElo "2369"] [Annotator "TA"] [PlyCount "94"] [EventDate "2021.07.02"] [EventType "swiss"] [EventCountry "SRB"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,94,45,47,50,46,47,50,54,49,49,50,40,79,20,36,26,27,0,0,0,0,0,0,-13, -12,-78,-77,-75,-82,-77,-79,-79,-72,-79,-90,-81,-58,-46,-43,-42,-36,-100,-103, -221,-222,-241,-242,-240,-237,-240,-233,-319,-312,-457,-449,-713,-728,-886, -863,-914,-896,-815,-803,-1195,-1181,-1223,-1215,-1187,-1179,-1943,-1937, -29977,-29976,-29970,-5619,-5189,-2762]} 1. d4 Nf6 2. Nf3 g6 3. g3 Bg7 4. Bg2 O-O 5. O-O d6 6. c4 Nc6 7. Nc3 e5 8. dxe5 dxe5 9. Bg5 h6 10. Qxd8 Rxd8 11. Bxf6 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without . ..a6.} Bxf6 12. Nd5 Kg7 $1 {[%mdl 4] is more profitable than 12...Bg7 at the moment.} 13. Nxc7 {White is slightly better.} Rb8 14. e4 g5 15. Rad1 Be6 16. Nd5 {[#]} ({White should try} 16. Nxe6+ $16 fxe6 17. Bh3) 16... b5 $146 ({ Predecessor:} 16... Rbc8 17. b3 g4 18. Nd2 h5 19. f4 Nd4 20. Nb1 b5 21. cxb5 h4 22. Nxf6 Kxf6 23. fxe5+ Kxe5 24. gxh4 {1/2-1/2 (41) Grkinic,G (1816)-Garcia Rojas,H (1970) IECG email 2003}) 17. c5 a5 18. a3 b4 19. a4 Rbc8 20. Nb6 Rb8 21. Rd5 Be7 22. Rc1 {[#]} (22. Re1 $11 {remains equal.}) 22... g4 $1 $17 { [%CAl Rg4f3]} 23. Nd2 Bxd5 24. exd5 Nd4 {...Ne2+ is the strong threat.} 25. Kf1 {[#]} Bxc5 $1 {[%mdl 64] Remove Defender} 26. Rxc5 {And now Ndc4 would win.} ( 26. Nbc4 Rbc8) 26... Rxb6 27. Nc4 {[#]} Nb3 $1 28. Rc7 Rf6 29. Be4 h5 30. Ke1 ( 30. Ke2 $1 $15) 30... Nd4 {Black continues to play with concentration.} 31. Nxa5 (31. Kf1 $17) 31... Ra8 $19 32. Rc5 {[#] next d6! is good for White.} Rfa6 {[%CAl Ra6a5]} 33. Nc6 {intending d6.} Rxa4 {Hoping for ...Ra1+.} 34. Nxd4 exd4 {[%mdl 4096] Endgame KRR-KRB} 35. d6 Rd8 ({Not} 35... Re8 36. d7 $17) 36. Rc6 ( 36. Rd5 $142) 36... Ra2 37. Bf5 (37. b3 $142) 37... Kf6 38. Bc8 Rxb2 39. d7+ Ke5 40. Rc5+ Kd6 41. Rxh5 b3 42. Rb5 d3 43. Kd1 Kc6 44. Rb8 f5 45. Rb4 Kc5 46. Rb7 Kd4 47. Rb5 Rxf2 {Weighted Error Value: White=0.69/Black=0.02} 0-1