[Event "FIDE Chesscom Grand Swiss 2021"] [Site "Riga"] [Date "2021.10.27"] [Round "1.7"] [White "Harikrishna, Pentala"] [Black "Kovalev, Vladislav"] [Result "1/2-1/2"] [ECO "C97"] [WhiteElo "2719"] [BlackElo "2634"] [Annotator "TA"] [PlyCount "60"] [EventDate "2021.10.27"] [EventType "swiss"] [EventCountry "LAT"] [Tiebreak "Cut1 Buchholz+Sonneborn-Berger (Swiss)"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 25,60,25,27,23,35,7,34,11,13,0,0,0,0,-4,-10,-20,-11,-16,-17,-22,-10,-7, 0,0,0,-27,-16,-37,-18,-18,10,8,20,6,2,-18,-5]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5 10. Bc2 c5 11. d4 Qc7 12. Nbd2 Be6 13. d5 Bd7 14. Nf1 {C97: Closed Ruy Lopez: Chigorin Defence: 11 d4 Qc7, sidelines.} Nc4 15. Ng3 {[#]} g6 $146 ({Predecessor:} 15... Rfc8 16. Nh4 g6 17. Nf3 Ne8 18. Nh2 Ng7 19. Rf1 Bh4 20. Nf3 Be7 21. Nh2 Rf8 {1/2-1/2 (83) Nakahara,K (2095)-Advait,B (2242) Chess.com INT 2020}) 16. b3 {White is slightly better.} Nb6 17. Bg5 Rfc8 18. Qd2 a5 19. Qe2 c4 20. bxc4 Nxc4 21. Bd3 Na3 22. Rac1 Kg7 23. Qe3 Ng8 {next ...f6 is good for Black.} 24. Bxe7 Nxe7 25. Qg5 {[#] Threatens to win with Nh5+.} Ng8 26. Nf5+ Kf8 27. Ne3 {The position is equal.} Qd8 28. Qxd8+ Rxd8 29. c4 bxc4 30. Nxc4 Nxc4 {Not much happened in this game. Weighted Error Value: White=0.08/Black=0.07} 1/2-1/2 [Event "FIDE Chesscom Grand Swiss 2021"] [Site "Riga"] [Date "2021.10.27"] [Round "1.25"] [White "Adhiban, B..."] [Black "Sethuraman, S.P..."] [Result "1/2-1/2"] [ECO "C42"] [WhiteElo "2672"] [BlackElo "2620"] [Annotator "TA"] [PlyCount "139"] [EventDate "2021.10.27"] [EventType "swiss"] [EventCountry "LAT"] [Tiebreak "Cut1 Buchholz+Sonneborn-Berger (Swiss)"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,139,15,12,33,0,3,-9,4,6,14,16,8,8,17,15,14,14,27,33,38,13,16,0,37,25, 42,40,43,33,32,8,35,24,20,0,33,33,48,48,48,48,48,40,40,32,32,29,29,29,29,29,47, 47,39,39,96,96,96,96,96,96,96,96,96,96,96,96,96,96,96,96,96,96,96,96,96,96,96, 82,82,82,82,82,82,82,82,82,82,0,82,82,82,82,82,82,82,82,82,82,82,82,82,82,82, 82,82,82,82,82,82,82,82,0,82,0,82,82,82,82,82,82,82,0,82,0,82,0]} 1. e4 { Ftacnik,L} e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6 7. Nc3 Qxe2+ 8. Bxe2 g6 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} 9. Nd4 Bg7 10. h3 a6 {[#] The position is equal.} 11. Be3 $146 ({Predecessor:} 11. g4 Bd7 12. Bf3 Nc6 13. Nxc6 Bxc6 14. Bxc6+ bxc6 15. Bd2 h5 16. g5 Nd5 17. Nxd5 cxd5 18. O-O-O Kd7 {1/2-1/2 (18) Shirov,A (2710)-Kramnik,V (2790) Cazorla 1998 CBM 065 [Ftacnik,L]}) 11... Bd7 12. Bf3 Nc6 13. Kd2 Nxd4 14. Bxd4 O-O-O 15. Rae1 Be6 16. b4 Rhe8 17. h4 h5 18. a3 (18. a4 {with more complications.} Bh6+ 19. Be3 Bxe3+ 20. Rxe3 d5 21. Ree1) 18... Bh8 (18... Bh6+ {keeps more tension.} 19. Be3 Bg7 20. Bd4) 19. g3 Nd7 20. Bxh8 Rxh8 21. Bg2 Nf6 22. Re2 Rde8 23. Rhe1 c6 24. a4 {[%CAl Ba3a4,Ba4a5][%mdl 32]} Kc7 (24... a5 $5) 25. a5 Kd8 26. Ne4 Nxe4+ 27. Rxe4 Kd7 28. c4 Rb8 29. c5 d5 30. Re5 Rbe8 31. d4 f6 32. R5e3 Re7 33. Bf1 Rhe8 34. Bd3 f5 (34... Bf7 $14) 35. Re5 Bf7 36. f4 Re6 37. Ke3 R6e7 38. Kf2 Re6 39. Bc2 R6e7 40. Ra1 Ra8 41. Bb3 Be6 42. Ra3 Ree8 43. Ba2 Re7 44. Bb1 Bf7 45. Kg2 Re6 46. Rae3 Rae8 47. Kf2 R6e7 48. Ke2 Re6 49. Kd2 Rg8 50. Bd3 Rh8 51. Bb1 Rg8 $1 52. Bc2 Rh8 53. Ba4 Ke7 54. Kc3 Ra8 55. Bc2 Kf6 56. Bd3 Ke7 57. Kd2 Kf6 58. Ke2 Ke7 59. Kf2 Rh8 60. Kg2 Kf6 61. Bc2 Ke7 62. Ra3 Ra8 63. Rae3 Rh8 $1 64. Bd3 Kf6 $1 65. Re1 Ke7 66. Rb1 Ra8 67. Rb2 Kf6 68. Rb1 Ke7 $1 69. Rb2 Kf6 $1 70. Rb1 {Weighted Error Value: White=0.05/Black=0.04} ({Better is} 70. Bf1 $16) 1/2-1/2 [Event "FIDE Chesscom Grand Swiss 2021"] [Site "Riga"] [Date "2021.10.27"] [Round "1.27"] [White "Sargissian, Gabriel"] [Black "Praggnanandhaa R"] [Result "1/2-1/2"] [ECO "E49"] [WhiteElo "2664"] [BlackElo "2618"] [Annotator "TA"] [PlyCount "87"] [EventDate "2021.10.27"] [EventType "swiss"] [EventCountry "LAT"] [Tiebreak "Cut1 Buchholz+Sonneborn-Berger (Swiss)"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,87,0,-22,0,0,-18,-11,0,0,0,-7,-12,-10,0,0,47,79,66,84,59,56,64,2,0,0, 0,0,0,-2,-5,-29,-28,-108,-81,-114,-125,-118,-113,-112,-62,-74,0,-110,-117,-140, -118,-117,-117,-114,-7,-33,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. a3 Bxc3+ 7. bxc3 dxc4 8. Bxc4 c5 9. Ne2 Qc7 10. Ba2 b6 {E49: Nimzo-Indian: Rubinstein: 5 Bd3 d5 6 a3 Bxc3+ 7 bxc3.} 11. O-O Ba6 12. Bb2 $1 {[%mdl 4] is now more promising than 12.Re1.} Nc6 13. Rc1 Rfd8 14. c4 cxd4 15. exd4 Na5 {[%CAl Ra6c4]} 16. d5 Bxc4 (16... Nxc4 $2 17. Bxf6 gxf6 18. Qa4 $18) 17. Bxc4 Nxc4 18. Bxf6 gxf6 19. Ng3 $1 {Hoping for Qg4+. } (19. Qd4 exd5 20. Qxf6 Qe5 $15) 19... exd5 {[#]} 20. Qg4+ $146 (20. Qf3 $14 Qe5 21. Nf5) ({Predecessor:} 20. Nh5 Kh8 21. Re1 Qd6 22. Qd4 Ne5 23. Qf4 Rg8 24. Nxf6 Rg6 25. Nh5 Re8 26. Qd4 {1-0 (43) Parligras,M (2591)-Gavrilescu,D (2477) Reykjavik 2021}) 20... Kh8 $11 21. Rfe1 {And now Qh4! would win.} Rg8 22. Qd4 Qd8 23. Nf5 Ne5 {White must now prevent ...Nf3+.} (23... Nxa3 $6 24. Ne7 $16) 24. Kh1 Rc8 25. Rxc8 (25. f4 $11 {remains equal.} Nc6 26. Qd3) 25... Qxc8 $17 26. Ne7 Qg4 {[%csl Gg8][%CAl Rg4g2]} 27. Qxd5 Re8 28. Nc6 {[%CAl Rc6e5]} Qf4 (28... Qc8 {keeps more tension.} 29. Qd6 Kg7 30. Nxe5 Rxe5 31. Rd1 Qc5) 29. f3 Rc8 (29... Kg7 $17 30. g3 Nd3 $1 {[%mdl 512]}) 30. Nxe5 {[#]} (30. Ne7 $11 {keeps the balance.} Rf8 31. h3) 30... Qxe5 $1 $11 {[%CAl Re5e1][%mdl 4608] Endgame KQR-KQR} 31. Qd1 (31. Qxe5 fxe5) 31... Qb2 32. Qd6 {[#]} Qc3 $1 { [%CAl Rc3e1]} 33. Rd1 {[#]} Re8 ({Black should play} 33... Qe5 $1 $17 {[%CAl Re5d6] ( -> ...Qxd6)} 34. Qd7 Rc7) 34. h4 (34. h3 {with more complications.} Qe5 35. Qxe5 Rxe5 36. Rd7 Ra5 37. Rxf7 Rxa3 38. Rxf6 Rb3 39. Rf7) 34... Qe5 ( 34... a6 {is more complex.} 35. a4 Qe5 36. Kg1 Qxd6 37. Rxd6 Re6) 35. Qxe5 { The position is equal.} Rxe5 {KR-KR} 36. Rd7 Ra5 37. Rxf7 Rxa3 38. Rxf6 Kg7 39. Rc6 b5 40. Rc7+ Kg6 41. h5+ Kh6 42. Rc6+ Kg7 43. Rc7+ Kh6 44. Rc6+ {Weighted Error Value: White=0.15/Black=0.17} 1/2-1/2 [Event "FIDE Chesscom Grand Swiss 2021"] [Site "Riga"] [Date "2021.10.27"] [Round "1.28"] [White "Ganguly, Surya Shekhar"] [Black "Sjugirov, Sanan"] [Result "1/2-1/2"] [ECO "C78"] [WhiteElo "2617"] [BlackElo "2663"] [Annotator "TA"] [PlyCount "45"] [EventDate "2021.10.27"] [EventType "swiss"] [EventCountry "LAT"] [Tiebreak "Cut1 Buchholz+Sonneborn-Berger (Swiss)"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,45,30,24,29,23,23,23,23,23,15,18,18,25,16,12,16,-8,-3,-4,-4,0,8,0,0, 0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bb7 7. d3 Bc5 8. Nc3 O-O {C78: Ruy Lopez: Archangelsk and Möller Defences.} 9. Nd5 Na5 10. Bg5 {White wants to play Nxf6+.} Bxd5 {White has an edge.} 11. Bxd5 c6 12. Bb3 h6 13. Bh4 {[#]} d6 $146 ({Predecessor:} 13... Re8 14. Re1 Nxb3 15. axb3 g5 16. Bg3 d6 17. h3 a5 18. Qd2 Bb6 19. Bh2 Ra7 {1/2-1/2 (48) Wastel,H (2234)-Richter,W (2321) ICCF corr 2010}) 14. Qd2 {The position is equal.} Bb6 15. Kh1 Qe7 16. Ng1 Nxb3 17. axb3 g5 18. Bxg5 hxg5 19. Qxg5+ Kh8 20. Qh4+ Kg7 { Threatens to win with ...Rh8.} 21. Qg5+ Kh8 22. Qh4+ Kg7 {Hoping for ...Rh8.} 23. Qg5+ {Not much happened in this game. Weighted Error Value: White=0.03/ Black=0.01} 1/2-1/2 [Event "FIDE Chesscom Grand Swiss 2021"] [Site "Riga"] [Date "2021.10.27"] [Round "1.30"] [White "Sadhwani, Raunak"] [Black "Cheparinov, Ivan"] [Result "1/2-1/2"] [ECO "C50"] [WhiteElo "2609"] [BlackElo "2659"] [Annotator "TA"] [PlyCount "61"] [EventDate "2021.10.27"] [EventType "swiss"] [EventCountry "LAT"] [Tiebreak "Cut1 Buchholz+Sonneborn-Berger (Swiss)"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,61,11,19,25,20,26,26,35,33,47,39,41,8,8,17,17,18,35,18,36,11,23,8,15, 0,0,0,20,-41,-45,-66,-62,-68,-68,-58,-48,-53,-52,-53,-18,-25,-16,-27,-30,-28,0, 0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 d6 6. O-O O-O 7. Bg5 { 7.Re1 is setting a new trend.} h6 8. Bh4 a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} 9. Re1 g5 10. Bg3 Ba7 {White has an edge.} 11. Na3 g4 {[#]} 12. Bh4 $146 ({Predecessor:} 12. Nh4 Nh5 13. Nc2 Qg5 14. Ne3 Bxe3 15. Rxe3 a4 16. Re1 Be6 17. b3 axb3 18. Bxe6 fxe6 19. Qxb3 Nd8 20. d4 Kh7 21. Qc4 Rf7 22. Rf1 b6 {1/2-1/2 (22) Martin Martin,O (2457)-Straka,Z (2543) ICCF email 2018}) 12... Kg7 13. Nd2 Ne7 $1 {[%CAl Re7g6] White should prevent ...Ng6.} 14. Bxf6+ Kxf6 15. d4 Ng6 16. Nf1 Kg7 17. Nc2 Qg5 18. Nce3 h5 19. Ng3 Ne7 20. Qd2 { Black must now prevent Nef5+!} h4 21. Nef5+ (21. Ngf5+ $11 Nxf5 22. Nxf5+ { [%mdl 64] Discovered Attack} Kg6 23. Qd3) 21... Kf6 $1 $15 22. dxe5+ dxe5 23. Qxg5+ Kxg5 24. Nxe7 hxg3 25. hxg3 Be6 {Strongly threatening ...Rh8.} 26. b3 c6 27. Rad1 Rad8 (27... Rae8 $5 28. Nf5 $8 Bxf5 29. exf5 Rd8 $11) 28. Kf1 Bc5 29. Nf5 $1 {[%mdl 64] [#] Decoy} Bxf5 30. exf5 Kxf5 31. Bd3+ {Weighted Error Value: White=0.09/Black=0.08} 1/2-1/2 [Event "FIDE Chesscom Grand Swiss 2021"] [Site "Riga"] [Date "2021.10.27"] [Round "1.54"] [White "Miezis, Normunds"] [Black "Sasikiran, Krishnan"] [Result "1/2-1/2"] [ECO "A10"] [WhiteElo "2467"] [BlackElo "2640"] [Annotator "TA"] [PlyCount "73"] [EventDate "2021.10.27"] [EventType "swiss"] [EventCountry "LAT"] [Tiebreak "Cut1 Buchholz+Sonneborn-Berger (Swiss)"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,73,6,6,2,0,2,1,0,0,7,6,16,0,0,7,-7,-4,0,-7,-26,-36,-51,-36,-53,0,-80, -68,-72,-69,-78,-60,-64,-54,-57,-48,-41,0,-89,29,41,27,0,0,0,0,0,0,0,0,0,68,76, 53,33,58,6,7,0,60,0,8,0]} 1. c4 g6 2. Nc3 Bg7 3. g3 e5 4. Bg2 d6 5. d3 Ne7 6. e4 c5 7. Nge2 Nbc6 8. a3 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7.} a6 9. O-O O-O 10. Rb1 Rb8 11. b4 cxb4 12. axb4 b5 13. cxb5 axb5 14. Be3 Nd4 15. Qd2 Bg4 16. f3 Be6 17. f4 {[#]} Ra8 $146 ({Predecessor:} 17... Qd7 18. Bf2 Nxe2+ 19. Nxe2 Rfc8 20. Rfc1 Ra8 21. Rxc8+ Rxc8 22. Rc1 Rxc1+ 23. Qxc1 Qc6 24. Qb1 Qc7 25. fxe5 dxe5 {1-0 (41) Hoogland,D (2098)-Bowmer,K (2041) Vale 2017}) 18. Rf2 Qd7 ({Black should try} 18... Ra6 $15) 19. Rbf1 (19. f5 $1 $11 gxf5 20. exf5 Ndxf5 21. Bxa8 Rxa8 22. Bg5) 19... Nxe2+ $17 20. Nxe2 Ra2 21. Qe1 Rc8 22. fxe5 dxe5 23. Bc5 Bf8 24. Nc3 Ra3 25. Nd5 (25. d4 $11 exd4 26. Nd5 Nxd5 27. exd5 Bxd5 28. Qe5 {[%mdl 64] Double Attack} Rxc5 29. bxc5) 25... Bxd5 (25... Nxd5 $17 26. exd5 Bxc5 27. bxc5 Bxd5 28. Qxe5 Rxd3 29. Bxd5 Rxd5) 26. exd5 $11 Nf5 27. Qxe5 {[%CAl Rf2f5] [#] And now Rxf5 would win.} Rxc5 28. Rxf5 gxf5 29. bxc5 Bxc5+ 30. d4 Bd6 31. Qf6 Qe7 ({Black should play} 31... f4 $11) 32. Qxf5 $14 Re3 33. Qg4+ Kh8 34. Qc8+ (34. Qh5 $14) 34... Kg7 $1 $11 35. Qg4+ (35. Rf2 $11) 35... Kh8 $14 36. Qc8+ (36. Qh5 $14) 36... Kg7 $1 $11 37. Qg4+ {Weighted Error Value: White=0.21/Black=0.14} 1/2-1/2