[Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.1"] [White "Vasquez Schroeder, Rodrigo"] [Black "Cheparinov, Ivan"] [Result "1/2-1/2"] [ECO "D39"] [WhiteElo "2441"] [BlackElo "2688"] [Annotator "TA"] [PlyCount "72"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,72,23,27,10,32,0,0,-6,0,0,0,0,0,-14,0,-27,-16,-15,0,-3,-16,-13,-15, -23,-30,-29,0,0,0,0,0,0,0,0,0,-2,0,0,0,-33,-30,-33,0,-11,-1,-1,0,0,0,0,0,0,0,0, 0,0,0,0,0]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. Bg5 Bb4+ 5. Nc3 dxc4 6. e4 h6 7. Bxf6 Qxf6 8. Bxc4 c5 9. e5 {D39: Queen's Gambit Declined: Ragozin Defence with 5 Bg5 dxc4.} Qd8 10. a3 Bxc3+ 11. bxc3 cxd4 12. cxd4 Qa5+ 13. Qd2 Nc6 {[%CAl Bb8c6,Bc6a5,Ba5c4][%mdl 32] [#]} 14. Bd3 $146 ({Predecessor:} 14. d5 Qxd2+ 15. Kxd2 Na5 16. Ba2 exd5 17. Bxd5 Ke7 18. Ke3 Be6 19. Rhd1 Rhd8 20. Bxe6 Kxe6 { 1/2-1/2 (37) Checa,N (2467)-Tiglon,B (2388) Charlotte 2017}) 14... Bd7 15. Be4 Ke7 16. Rb1 Rab8 17. Qxa5 Nxa5 18. Ke2 $1 Nc4 19. Rb3 Rhc8 20. Rc1 ({Not} 20. Bxb7 $2 Rc7 $19) 20... b5 21. Bd3 Bc6 22. Bxc4 bxc4 23. Rxb8 Rxb8 $11 {[%mdl 4096] Endgame KRB-KRN} 24. Nd2 Rb2 25. Ke3 Ra2 26. Nxc4 Bxg2 27. Rc3 f5 28. exf6+ $1 gxf6 29. Nd2 {The position is equal.} a6 30. f3 Kf7 31. h4 h5 32. Ne4 Kg6 33. Ng3 Bh3 34. Kf4 Rd2 35. Ke3 Ra2 36. Kf4 Rd2 {Weighted Error Value: White=0.05/Black=0.03} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.2"] [White "Moussard, Jules"] [Black "Fier, Alexandr"] [Result "1/2-1/2"] [ECO "B47"] [WhiteElo "2626"] [BlackElo "2558"] [Annotator "TA"] [PlyCount "102"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,102,23,34,25,44,40,40,19,38,31,42,17,23,11,11,2,6,8,62,29,32,33,31, 49,26,26,36,14,14,14,14,14,13,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-17,0,0,0,-35,0,0,0, 0,0,0,0,-17,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. f4 a6 7. Nxc6 Qxc6 8. Bd3 b5 9. Qe2 Bb7 10. Bd2 Bc5 11. O-O-O {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2. } Ne7 12. a3 O-O 13. h4 {White is slightly better.} b4 14. axb4 Bxb4 {[#]} 15. f5 $146 ({Predecessor:} 15. h5 Rfc8 16. Qg4 f5 17. exf5 exf5 18. Bxf5 Nxf5 19. Qxf5 Qe6 20. Qxe6+ dxe6 21. h6 {1/2-1/2 (36) Kriebel,T (2531)-Werle,J (2540) Novy Bor 2019}) 15... exf5 16. exf5 Bxc3 ({Much weaker is} 16... Qxg2 $6 17. Qxg2 Bxg2 18. Rhg1 $18) 17. Bxc3 Nd5 18. Bd4 Nf4 (18... Rac8 $11) 19. Qg4 { [%csl Gd4][%CAl Rg4g7] [#]} (19. Qf2 $5 {[%CAl Rf2f4]} Nxd3+ 20. Rxd3 $11) 19... Nxd3+ 20. Rxd3 {[%csl Gd4][%CAl Rg4g7]} f6 $1 ({Not} 20... Qxg2 $2 21. Qxg2 Bxg2 22. Rg1 $18) 21. Rg3 {[%csl Gg3][%CAl Rg4g7]} Rf7 22. Re1 Qa4 23. Qf4 Rc8 {[%csl Gc8][%CAl Ra4c2] [#]} 24. Rc3 {Threatening mate with Rxc8+.} Rff8 25. g4 Rfe8 {( -> ...Qa1+)} 26. Rxe8+ Rxe8 27. Re3 Rxe3 28. Qxe3 {[%CAl Re3e8]} Kf7 29. b3 Qa3+ 30. Kb1 {aiming for Bc5.} Qe7 31. Qf4 Qe4 32. Qd6 Qd5 33. Qb6 Qc6 34. Qd8 Qd6 35. Bc3 Bf3 36. g5 {Black must now prevent gxf6.The position is equal.} Be4 37. Kb2 Bxf5 38. gxf6 gxf6 39. h5 Be4 40. h6 Qe7 41. Qc8 Qe6 42. Qh8 Qf5 43. Qg7+ Ke6 44. Qg8+ Ke7 45. Bb4+ d6 46. Qc4 Qe5+ 47. Bc3 Qf4 48. Qc7+ Ke6 49. Qc8+ Ke7 50. Qc7+ Ke6 51. Qc8+ Ke7 {Weighted Error Value: White=0.05/ Black=0.05} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.3"] [White "Checa, Nicolas"] [Black "Santos Latasa, Jaime"] [Result "1/2-1/2"] [ECO "D43"] [WhiteElo "2527"] [BlackElo "2600"] [Annotator "TA"] [PlyCount "78"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,78,12,22,14,31,21,34,0,6,6,4,4,0,8,10,7,30,19,16,15,49,29,29,31,27, 16,72,72,54,13,16,-10,16,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. Bg5 h6 6. Bxf6 Qxf6 7. e3 g6 8. Be2 {D43: Semi-Slav: 5 Bg5 h6.} Bg7 9. O-O {9.e4 is not played anymore.} O-O 10. Qc2 {White is slightly better.} Nd7 11. cxd5 exd5 12. b4 {[#] } a6 $146 ({Predecessor:} 12... Qd6 13. b5 c5 14. Rfd1 Nb6 15. a4 Be6 16. a5 Nd7 17. dxc5 Qxc5 18. Nd4 Rac8 {1/2-1/2 (50) Stupak,K (2545)-Sethuraman,S (2613) St Petersburg 2014}) 13. a4 Qd6 14. b5 a5 15. bxc6 bxc6 16. Rab1 Rb8 17. Rxb8 (17. Rfc1 {looks sharper.} Nb6 18. Nd2 Be6 19. Bd3 Rfc8 20. Ne2) 17... Nxb8 18. Rc1 Be6 19. Nd2 Qd8 (19... Nd7 $11 {keeps the balance.}) 20. Nb3 $16 Nd7 21. Nb1 {[%CAl Bc3b1,Bb1d2,Bd2f3][%mdl 32]} Qb6 {The position is equal.} 22. Qc3 Rb8 23. N1d2 ({Reject} 23. Nxa5 {[#]} c5 $1 $15 {[%mdl 512]}) 23... c5 24. dxc5 ({But not} 24. Nxc5 Nxc5 25. Qxc5 Qxc5 $17) 24... Bxc3 25. cxb6 Bb4 26. Nf3 Nxb6 27. Bb5 $1 Bd7 28. Bxd7 Nxd7 29. Nfd4 Ne5 30. Kf1 Nc4 31. Ke2 Kf8 32. Rc2 h5 33. g3 Ke8 34. h4 Kd7 35. Nb5 Rc8 36. Na7 Rc7 37. Nb5 Rc8 38. Na7 Rc7 39. Nb5 Rc8 {Weighted Error Value: White=0.05/Black=0.07} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.4"] [White "Santos Ruiz, Miguel"] [Black "Asis Gargatagli, Hipolito"] [Result "1/2-1/2"] [ECO "B07"] [WhiteElo "2581"] [BlackElo "2470"] [Annotator "Shahid"] [PlyCount "68"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,68,35,43,29,10,28,21,27,23,45,40,58,50,71,31,31,31,45,31,39,27,32,8, 102,99,114,98,127,98,108,104,97,108,100,107,179,168,193,134,155,132,137,135, 114,108,239,132,257,225,293,287,313,303,305,305,277,0,0,0,-6]} 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 a6 5. a4 Bg7 6. f3 O-O {B06: Modern Defence.} 7. Bc4 Nc6 8. Nge2 e5 9. d5 Ne7 10. Qd2 Ne8 11. g4 c5 {[#]} 12. dxc6 $146 ({Predecessor:} 12. Bh6 Qa5 13. Bxg7 Nxg7 14. Qc1 Bd7 15. h4 Qb4 16. Bb3 c4 17. Ba2 Bxa4 18. Bxc4 Qxc4 19. Rxa4 {0-1 (48) Tardos,Z-Kiss,E (2118) Hungary 2005}) 12... bxc6 13. O-O-O Be6 14. Bxe6 fxe6 15. f4 exf4 16. Bxf4 e5 (16... d5 $11) 17. Bg5 $16 Ra7 18. h4 Qc8 19. h5 Qxg4 20. hxg6 Nxg6 21. Rdg1 Qe6 22. Ng3 Nf6 (22... d5 $16 ) 23. Nf5 $18 d5 24. Nxg7 (24. Qh2 $18 d4 25. Nd1) 24... Rxg7 $16 25. exd5 cxd5 {aiming for ...d4.} 26. Bh6 (26. Bxf6 Rxf6 27. Nxd5 Rf8 28. Kb1 Rd8 29. c4) 26... d4 {[#]} 27. Nb1 $1 ({Not} 27. Bxg7 dxc3 28. Qxc3 Kxg7 $17) 27... Ne4 { [#]} (27... Rc7 $16 {is a better defense.}) 28. Qe2 (28. Qg2 $1 $18 Qf5 29. Rf1 ) 28... Qf5 (28... Nf2 $16 {might work better.}) 29. Rh5 ({And not} 29. Qxa6 Rc7 $11) 29... Ng3 30. Rxg3 Qf1+ 31. Qd1 Qxd1+ 32. Kxd1 Rf1+ 33. Ke2 $2 (33. Kd2 $18 Rgf7 34. Na3) 33... Rxb1 $11 34. Rxe5 {Black must now prevent Re8+.} Rc7 {Weighted Error Value: White=0.23/Black=0.32} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.5"] [White "Plat, Vojtech"] [Black "Bellahcene, Bilel"] [Result "1-0"] [ECO "E35"] [WhiteElo "2562"] [BlackElo "2510"] [Annotator "Shahid"] [PlyCount "122"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 20,122,0,0,14,11,33,33,33,17,28,35,64,48,58,58,76,59,58,47,62,47,60,47, 52,53,70,77,67,50,122,78,129,90,86,83,117,0,60,59,70,58,54,28,12,12,28,39,29,0, 0,0,113,117,125,126,111,112,114,114,125,105,106,97,214,217,195,196,225,221,216, 211,203,152,189,185,220,213,382,370,405,398,391,385,347,361,347,91,340,168,191, 108,132,112,157,33,181,103,214,161,170,127,174,139,314]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. cxd5 exd5 6. e3 O-O 7. Nf3 c5 8. dxc5 Nc6 9. Be2 Bxc5 10. O-O Qe7 11. a3 Rd8 {E39: Nimzo-Indian: Classical: 4...c5 5 dxc5 0-0.} 12. b4 Bb6 13. Na4 {[%CAl Bc3a4,Ba4c5,Bc5d3,Bd3f4][%mdl 32]} Bc7 {White is slightly better.} 14. Bb2 Bg4 15. Nc5 {[#]} Bxf3 $146 ({Predecessor:} 15... Rac8 16. Nxb7 Nd4 17. Qd1 Nxe2+ 18. Qxe2 Re8 19. h3 Bh5 20. Rad1 Bb8 21. Bxf6 Qxb7 { 1-0 (40) Lahner,J (2241)-Asauskas,H (2383) Frydek Mistek 2005}) 16. Bxf3 Be5 17. Nd3 Bxb2 18. Qxb2 Rd6 19. b5 Na5 20. Qb4 b6 21. Nf4 Qd7 22. Rac1 Rd8 23. Rfd1 Nb7 24. Nd3 Qe7 $2 (24... Re8 $14) 25. Rc6 (25. Qf4) (25. Qa4) 25... g5 $2 (25... R6d7 $142) 26. Rdc1 (26. Qd4) 26... Na5 27. Rc7 Qe6 28. Qe1 (28. Rxa7 $16 d4 29. Re1 dxe3 30. Rxe3) (28. h3) 28... R6d7 ({Better is} 28... g4 $11 29. Bd1 d4) 29. Rxd7 $14 Rxd7 30. Rc8+ Kg7 $1 31. Qc3 d4 32. exd4 Rxd4 33. Qxd4 Qxc8 34. Qe5 (34. h4 $5 {[%CAl Rh4g5]} Qf5 35. hxg5 Qxg5 36. a4 $14) 34... h6 35. h4 $36 {[%mdl 2048] White has the initiative.} Qe8 (35... Nc4 $11 36. Qc3 Nd6) 36. hxg5 $16 Qxe5 37. gxh6+ (37. Nxe5 $6 hxg5 38. Kf1 Ne8 $11) 37... Kxh6 38. Nxe5 {[%mdl 4096] Endgame KBN-KNN} Kg7 39. Kf1 Ne8 40. Ke2 Nc7 41. a4 Nb3 ( 41... Kf6 $16) 42. Ke3 $18 Nc5 43. Bd1 Kf6 44. Nc6 a6 45. bxa6 N5xa6 46. Na7 Nc5 47. Kd4 N5e6+ 48. Kc4 Nf8 $2 {[#]} (48... Ke5 {is a better defense.} 49. Nc8 Nd5) 49. Nc8 Nd7 50. f4 Kf5 51. g3 Ke4 {Black hopes to continue with ... Ke3.} 52. Bh5 (52. Nd6+ Ke3 53. Nxf7) 52... Ke3 {If Black can now play ...Kf2 this consolidates a bit.} 53. Nd6 $2 (53. Bxf7 $18 {is the precise move to win. } Kf3 54. Kd4 Kxg3 55. f5) 53... Nf6 $2 (53... Kf2 $16) 54. Bd1 (54. Bxf7 $142 {Nb5 is the strong threat.} Kf3 55. Kd4) 54... Kf2 55. Nf5 (55. Nxf7 Kxg3 56. Be2 Kxf4 $11) (55. g4 $18) 55... Ne4 56. g4 {Strongly threatening g5.} Ne6 57. Bc2 (57. Nh6 $16) 57... N4c5 {[#]} (57... Kf3 $14) 58. Nd6 $1 {And now f5 would win.} Nxf4 (58... Ke3 $16 {was worth a try.}) 59. Nxf7 Kg3 60. g5 Kg4 61. Kb5 (61. a5 bxa5 62. Kxc5 (62. Bd1+ Kf5 $11) 62... Ne6+ {[%mdl 64] Double Attack} 63. Kb5 Nxg5 $11) 61... Nfe6 $2 {Weighted Error Value: White=0.27/ Black=0.38} (61... Kh5 $16 62. Bb1 (62. Kxb6 Nxa4+ 63. Kc6 Nc5 $11) (62. a5 bxa5 63. Kxc5 Ne6+ {[%mdl 64] Double Attack} 64. Kb6 Nxg5 $11) 62... Nd5) 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.6"] [White "Lagarde, Maxime"] [Black "Batsiashvili, Nino"] [Result "1/2-1/2"] [ECO "C54"] [WhiteElo "2651"] [BlackElo "2460"] [Annotator "TA"] [PlyCount "104"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,104,0,0,-28,-30,-32,-30,-35,-26,-29,-31,-23,-35,-50,-38,-88,281,262, 371,396,364,397,387,394,386,379,369,345,385,205,204,200,204,206,200,209,207, 200,195,198,203,204,202,197,191,177,203,199,315,188,312,235,204,141,147,142, 141,157,300,294,320,119,112,103,104,104,98,102,97,89,95,11,22,8,16,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. b4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} Bb6 7. e5 d5 {...Ne4 is the strong threat.} 8. exf6 {Black has an edge.} dxc4 9. b5 Na5 (9... Qxf6 10. bxc6 Qe6+ 11. Qe2 $14) 10. Qe2+ Be6 $1 11. fxg7 Rg8 12. cxd4 {[#]} c5 $146 {[%mdl 8192]} (12... Rxg7 $6 13. O-O $11) (12... Qd7 $1 $17 { and life is bright.} 13. d5 Qxd5) ({Predecessor:} 12... Bxd4 13. Nxd4 Qxd4 14. Bb2 Qc5 15. Bf6 Qf5 16. Qf3 a6 17. Nc3 axb5 18. O-O-O c6 {1-0 (28) City Barmen CC-City Berlin Academy CC corr 1873}) 13. Bg5 $18 Qd7 (13... Qd6 {is a better defense.}) 14. Nc3 cxd4 15. Ne5 Qd6 16. Ne4 {[%CAl Re4d6]} Qb4+ 17. Kf1 $1 (17. Bd2 Qe7 $18) 17... Rxg7 18. Nf6+ $1 Kf8 {Strongly threatening ...d3.} 19. Re1 ( 19. Bh6 $142 d3 20. Ned7+ Ke7 21. Qe5) 19... Rxg5 20. Nxh7+ {[%mdl 64] Double Attack} Ke7 21. Nxg5 {Intending Nexf7 and mate.} d3 22. Qf3 d2 {[%csl Gb4] [%CAl Rd2e1]} 23. Ng6+ $1 (23. Nc6+ bxc6 24. Qxf7+ Kd8 $11) 23... Kd7 {[%csl Gb4][%CAl Rd2e1]} 24. Rxe6 $1 {[%mdl 64] Remove Defender} fxe6 25. Qf7+ { [%mdl 64] Double Attack} Kc8 {[%CAl Rd2d1]} 26. Qxe6+ Kc7 27. Qf7+ Kc8 { [%CAl Rd2d1]} 28. Ke2 $1 Bd8 ({Don't go for} 28... Qxb5 $2 29. Ne7+ (29. Qf8+ Bd8 $19) 29... Kc7 30. Ne6+ Kd6 31. Nf5+ Qxf5 32. Qxf5 $18) (28... Qd6 $142) 29. Ne4 (29. Qf5+ $142 Kb8 30. Qe5+ Kc8 31. Qe6+ Kb8 32. Qe5+ Kc8 33. Qe6+ Kb8 34. Qe5+) 29... c3 (29... a6 $142) 30. Qe6+ Kc7 31. Qe5+ Kb6 {[#]} 32. Nf4 $1 { [%CAl Rf4d5] White threatens Nd5+! and mate.} ({Inferior is} 32. Nxc3 Qg4+ 33. f3 Qxg2+ 34. Kd3 Qxg6+ $17) 32... Qc4+ 33. Kf3 c2 (33... a6 $16) 34. Nxd2 Qxb5 35. Qe6+ $2 (35. Nd5+ $18 {and White stays clearly on top.} Ka6 36. Qe4) 35... Nc6 $16 36. Rc1 a5 37. Rxc2 Ka7 {[#]} 38. Rxc6 $1 Qxc6+ 39. Qxc6 bxc6 {[%mdl 4096] Endgame KRB-KNN} 40. Nd3 (40. g3 $16) 40... Bc7 $11 {The position is equal.} 41. h4 Rd8 42. Ke2 Rd4 43. g3 Ra4 44. h5 {aiming for h6.} Rxa2 45. h6 Bd8 46. f4 Bf6 $1 {[%CAl Rf6c3] Hoping for ...Bc3.} 47. Ne5 a4 $1 48. Nxc6+ Ka8 {Threatens to win with ...a3.} 49. Nb4 Rb2 50. Nd3 Ra2 {White must now prevent ...Bc3.} 51. Nb4 Rb2 52. Nd3 Ra2 {Black escapes into a draw. Weighted Error Value: White=0.19/Black=0.21} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.7"] [White "Cornette, Matthieu"] [Black "Ayats Llobera, Gerard"] [Result "1-0"] [ECO "B51"] [WhiteElo "2558"] [BlackElo "2400"] [Annotator "TA"] [PlyCount "81"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,81,20,50,54,56,50,66,63,73,65,87,91,94,43,52,46,62,59,52,56,49,75,93, 90,87,90,86,90,93,75,139,142,138,142,138,138,138,138,173,173,185,153,189,138, 138,138,138,138,215,211,210,202,195,192,234,219,222,202,267,255,344,317,406, 411,403,388,357,218]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Re1 a6 6. Bxc6 Bxc6 7. d4 cxd4 8. Nxd4 Nf6 9. Nxc6 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} bxc6 10. Qf3 e5 11. Bg5 {White is slightly better.} Be7 12. Nd2 Qd7 {[#]} 13. Nc4 $146 ({Predecessor:} 13. Rad1 Qe6 14. b3 O-O 15. Nc4 Rfd8 16. Ne3 g6 17. Bxf6 Bxf6 18. Rd3 Bg5 19. Nc4 {0-1 (42) Thomas,M (2074) -Chambers,C (1909) Chessfriend.com 2005}) 13... Qe6 14. Bxf6 ({White should try } 14. b3 $16) 14... Bxf6 $14 15. Qc3 d5 16. exd5 cxd5 17. Nxe5 {Threatens to win with Qg3.} O-O $1 18. Qg3 $36 {[%mdl 2048] And now Ng6 would win. White is really pushing.} Rfe8 {[%CAl Rf6e5]} 19. Nd3 Qc6 20. Rxe8+ Rxe8 {[#]} 21. Re1 $1 Rxe1+ 22. Nxe1 {Intending Qb8+ and mate.} Qb5 (22... Qe8 $142 23. Nd3 g6) 23. b3 $16 g6 24. Qe3 Qb4 25. a4 a5 26. g3 h5 27. h4 Qg4 28. Nf3 Kg7 29. Kg2 ( 29. Qd3 $18) 29... Qc8 30. Qd2 Qc5 31. Ng1 d4 (31... Bc3 $16 {keeps fighting.} 32. Qd3 Bd4) 32. Nf3 $18 Qb6 33. Qd3 Qc6 34. Kg1 Kh7 35. Nd2 Kg7 36. Qe4 Qc3 37. Nc4 Qb4 38. Qd5 Qc3 39. Nd6 {White is winning.} Qe1+ 40. Kg2 Qe7 41. Ne4 { Weighted Error Value: White=0.05/Black=0.18} 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.8"] [White "Nevednichy, Vladislav"] [Black "Garcia Martin, Marta"] [Result "1/2-1/2"] [ECO "B47"] [WhiteElo "2546"] [BlackElo "2342"] [Annotator "TA"] [PlyCount "157"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,157,12,44,20,22,10,29,14,21,0,0,7,27,15,9,16,32,33,40,35,34,19,34,0, 12,0,31,18,22,22,27,29,26,30,23,28,38,30,32,27,38,32,42,19,79,16,37,29,136,142, 133,0,0,0,0,0,0,0,0,-19,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-6,-6,-6,-7,0,0,-88,-32, -60,0,0,0,0,0,0,0,-19,-19,-38,-15,-15,-15,-15,-15,-17,0,0,0,0,0,0,0,0,2,0,0,0, 0,0,24,24,24,24,24,24,24,24,24,24,29978,29979,29979,29980,29980,29981,29980,24, 24,24,24,0,24,24,24,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Qd3 {B47: Sicilian: Taimanov: 5 Nc3 Qc7 6 f4, 6 g3 and 6 Be2.} Nxd4 7. Qxd4 a6 8. Be3 {White has an edge.} b5 9. Be2 Bb7 10. O-O {[#]} b4 $146 ({Predecessor:} 10... Ne7 11. Rad1 Nc6 12. Qd2 Rd8 13. Rfe1 Ne5 14. Bd4 Bc5 15. Bxb5 Ng4 16. Bxc5 Qxc5 {0-1 (36) Beerdsen,T (2477)-Perunovic,M (2597) Skopje 2018}) 11. Na4 Nf6 12. Nb6 Rb8 13. e5 Nd5 14. Nxd5 Bxd5 15. c4 bxc3 16. bxc3 Ba3 17. Qg4 O-O ({Wrong is} 17... Qxe5 $2 18. Bf4 $18) 18. c4 Bc6 19. Bh6 {[%csl Gh6][%CAl Rg4g7]} Qxe5 {Strongly threatening ...f5.} 20. Bf4 Qa5 21. Bxb8 $40 {[%mdl 128] White has some attack.} Rxb8 22. Bf3 Ba4 23. Rab1 Rf8 24. Qd4 Bc5 25. Qd3 Qc7 26. g3 f5 (26... a5 $11) 27. Kg2 (27. Rb7 $16 Qe5 28. Qd2) 27... g5 28. h3 g4 (28... Be7 $11 {remains equal.}) 29. hxg4 $16 fxg4 30. Bxg4 (30. Be4 $16) 30... Bc6+ $11 31. f3 Rf6 $1 32. Rh1 Rg6 {With the idea ...Rxg4.} 33. Rh5 Rxg4 $1 34. Qxh7+ {[#]} Kf8 $1 {[#]} 35. Rf5+ $1 {[%mdl 512]} exf5 36. Qxf5+ {[%mdl 64] [#] Double Attack} Ke8 $1 37. Qxg4 Qe5 38. Qg6+ Ke7 39. Qh7+ Kd6 40. Qh6+ Ke7 41. Qh7+ Kd6 42. Qh6+ Kc7 43. Qf4 Qxf4 44. gxf4 Kd6 45. Rd1+ { [#]} (45. Kg3 $11 {keeps the balance.}) 45... Ke6 (45... Ke7 $1 $17) 46. Kg3 $15 a5 (46... d6 $15) 47. Kg4 $11 Kf6 48. Rh1 d6 49. f5 Be8 50. Rh8 Bf7 51. Ra8 Bb4 {[%mdl 1024] Black has compensation.} 52. a3 Bxa3 {And now ...Bb4 would win.} 53. Rxa5 Bc5 54. Ra4 Ke5 55. Kg5 Be3+ 56. Kg4 Bb6 57. Kg5 Bd8+ 58. Kg4 Bf6 59. Ra5+ Kd4 60. c5 dxc5 {...c4 is the strong threat.} 61. Ra6 {Cut Off at move 61} Bh8 {Threatens to win with ...c4.} 62. Rh6 Be5 63. f4 c4 {Hoping for . ..Bb8.} 64. fxe5 Kxe5 {[%mdl 4096] Endgame KR-KB} 65. Rc6 Bd5 66. f6 {aiming for Rc5!} Kd4 $2 {[%mdl 8192] [#]} (66... Bxc6 $2 {too greedy.} 67. f7 $18) ( 66... c3 $11) 67. Rd6 $1 c3 68. f7 $1 c2 69. f8=Q c1=Q {KQR-KQB} 70. Qg7+ $2 ( 70. Qf2+ {mates} Kc4 71. Qa2+ Kb4 72. Qxd5 Qg1+ 73. Kf5 Qf2+ 74. Ke6 Qe3+ 75. Kf7) 70... Ke4 71. Qg6+ Kd4 72. Qg7+ Ke4 {( -> ...Qg1+)} 73. Qe7+ Kd4 74. Qa7+ Ke5 {The position is equal.} 75. Rxd5+ Kxd5 76. Qd7+ Ke4 77. Qf5+ Kd4 78. Qf4+ Qxf4+ 79. Kxf4 {Weighted Error Value: White=0.13/Black=0.13} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.9"] [White "Maurizzi, Marc Andria"] [Black "Krysa, Leandro"] [Result "1/2-1/2"] [ECO "A34"] [WhiteElo "2445"] [BlackElo "2531"] [Annotator "TA"] [PlyCount "55"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,55,51,32,31,33,43,-39,-34,-66,-40,-98,21,24,61,68,298,283,281,262, 277,197,295,289,295,187,215,220,200,83,72,38,99,0,0,-38,0,0,0,-66,0,0,0,-60,0, 0]} 1. c4 c5 2. Nf3 Nf6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nb4 6. Bc4 Be6 7. Bxe6 { And now Bc4 would win.} Nd3+ {A34: Symmetrical English: 2 Nc3, lines with ... d5.} 8. Kf1 fxe6 9. Qb3 (9. Ng5 $1 $14) 9... Qd7 $15 {Black is slightly better. } 10. Ng5 Nc6 $1 {[#]} 11. Nb5 $146 (11. f3 $15) ({Predecessor:} 11. Qxe6 Qxe6 12. Nxe6 Kd7 13. Ng5 Nd4 14. f3 g6 15. Nh3 Bh6 16. Nf2 {1-0 (55) Grachev,B (2510)-Nepomniachtchi,I (2506) Cheboksary 2006}) 11... O-O-O (11... Ncb4 $17 12. Nxe6 Rc8) 12. Nxe6 $11 a6 13. Nbc7 $1 $36 {[%CAl Rc7d5][%mdl 2048] Nd5 is the strong threat. White has good play.} Qxc7 $2 (13... Na5 $14 14. Qb6 Qc6 15. Qxc6 Nxc6) 14. Nxc7 $18 Kxc7 15. h4 Rd4 16. Qe6 h5 (16... g6 {might work better.} 17. f3 Bg7) 17. Rh3 Nce5 {If only Black now had time for ...Rh6....} 18. f3 Rh6 {[#]} 19. Qg8 $1 {[%CAl Rg8f8]} Rf6 20. Kg1 (20. b3 $18) 20... g6 $16 21. b4 {Threatens to win with Rg3.} c4 {[#]} (21... e6 $1 $14) 22. Ba3 (22. Rb1 $1 $16 Rd8 23. f4 Nxf4 24. Re3) 22... Rd8 $1 $11 23. Rg3 {Strongly threatening f4.} Bh6 {[%mdl 1024] Black has compensation.} (23... e6 $5 { [%CAl Rf8c5]} 24. Kf1 Rf7 25. Rxg6 Be7 26. Qxf7 Nxf7 $15) 24. Qh7 {[%mdl 64] Double Attack} Bf8 25. Qg8 $1 {Black must now prevent f4.} Bh6 (25... e6 $5 { [%CAl Rf8c5]} 26. Kf1 Rf7 27. Rxg6 Be7 28. Qxf7 Nxf7 $15) 26. Qh7 {[%mdl 64] Double Attack} Bf8 27. Qg8 $1 {aiming for f4.} Bh6 ({Black should try} 27... e6 $1 $15 28. Kf1 Rf7 29. Rxg6 Be7 30. Qxf7 Nxf7) 28. Qh7 {[%mdl 64] Double Attack. White really could win this. Accuracy: White = 45%, Black = 60%.} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.10"] [White "Lopez Martinez, Josep Manuel"] [Black "Jimenez Ruano, Adrian"] [Result "1-0"] [ECO "E25"] [WhiteElo "2542"] [BlackElo "2279"] [Annotator "TA"] [PlyCount "106"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 21,106,0,0,4,36,41,43,53,41,40,35,59,63,53,91,48,93,81,87,69,84,82,82, 89,87,34,54,21,94,85,94,87,79,81,132,124,134,126,135,93,95,83,83,97,86,70,78, 61,72,0,93,72,81,72,104,72,85,90,135,72,72,70,142,146,307,321,304,281,269,273, 354,354,354,354,334,115,120,119,312,260,392,387,385,379,839,820,29987]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. f3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 Nxd5 8. dxc5 Qa5 9. e4 Nf6 10. Be3 Nfd7 11. Qb3 O-O 12. a4 {E25: Nimzo-Indian: Sämisch: 5.. . c5 6 f3 d5 7 cxd5.} Nc6 13. Bb5 a6 14. Bxc6 {White is slightly better.} bxc6 15. Qb4 {[#]} Qc7 $146 ({Predecessor:} 15... Qxb4 16. cxb4 Rb8 17. Rb1 Ne5 18. Kd2 Nc4+ 19. Kd3 Nxe3 20. Kxe3 a5 21. Ne2 axb4 {1-0 (43) Lampen,T (2275) -Heinimaki,L (2065) Jyvaskyla 1997}) 16. Ne2 Rb8 17. Qd4 Rb2 18. Bc1 Rb3 19. O-O e5 20. Qc4 Qb7 21. Be3 Nf6 22. Qd3 Be6 23. Rfb1 ({Better is} 23. Nc1 $16 Rb2 24. Qd6) 23... Bc4 $14 24. Qd1 {White wants to play Ng3.} Rxb1 (24... Rb8 $1 $11 {remains equal.} 25. Rxb3 Qxb3 26. Qxb3 Rxb3) 25. Rxb1 $16 Bxe2 {[#]} 26. Qe1 $1 {[#]} Bb5 $1 {[%mdl 512]} 27. c4 {[%mdl 64] Pin} (27. axb5 axb5) 27... Qd7 (27... Rb8 $142) 28. axb5 axb5 29. cxb5 cxb5 30. Rd1 Qc7 31. Qb4 Rb8 32. Rd6 Nd7 33. h3 h6 34. Rd5 Nf8 35. Rd6 Nd7 $1 36. Kh2 Kh7 37. Ra6 {aiming for c6.} Rc8 {[%CAl Rd7c5]} 38. Ra2 Qc6 39. Rb2 $36 {[%mdl 2048] White is really pushing.} Rb8 40. Rd2 ({White should play} 40. Qb3) 40... Qc7 41. Ra2 Rb7 ({Black should try} 41... Nf8 $14) 42. Ra6 {c6 is the strong threat.} Rb8 $2 (42... Nb8 $16 {might work better.} 43. Rb6 Qd7) 43. c6 $18 Nf6 44. Qc5 { Strongly threatening Ra7.} Ne8 45. Bd2 Qc8 46. Ra7 (46. Qxe5 Qxa6 47. Qxb8 Qxc6 $14) 46... Qe6 47. Ba5 Rc8 48. Ra6 $2 ({Weaker is} 48. Qxb5 Rxc6 49. Re7 Qxe7 $11) (48. c7 $18 {is the precise move to win.}) 48... Qf6 $16 49. Kh1 ({ Much worse is} 49. Qxb5 $6 Qf4+ 50. Kg1 Qe3+ 51. Kh1 Qc1+ 52. Kh2 Qf4+ 53. Kg1 Qe3+ 54. Kh2 Qf4+ $11) 49... Qg5 $2 (49... b4 $16 {was necessary.}) 50. c7 $18 b4 (50... Nxc7 $142 51. Bxc7 f6) 51. Rc6 b3 {[#] intending ...Nxc7.} 52. Qc3 $1 Nf6 $2 (52... Nxc7 53. Rxc7 (53. Bxc7 Qe7 $11) 53... Rb8) 53. Qxb3 Qe3 { Accuracy: White = 77%, Black = 53%.} 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.11"] [White "Garcia Ramos, Daniel"] [Black "Flom, Gabriel"] [Result "1/2-1/2"] [ECO "B73"] [WhiteElo "2380"] [BlackElo "2499"] [Annotator "TA"] [PlyCount "135"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,135,19,0,18,27,31,13,17,15,20,28,32,25,37,27,28,31,27,26,32,26,46,0, 0,-20,0,-8,-5,-15,-8,-11,-9,-16,-5,-5,-8,-16,-42,-59,0,0,0,0,87,0,0,-37,-37, -45,-54,-74,-50,-119,-121,-169,-169,-154,-153,-195,-184,-245,-236,-212,-5,-131, -136,-129,-105,-200,-209,-191,-154,-123,-95,-102,-102,-210,-106,-104,-100,-85, -91,-103,-77,-77,-77,-82,-36,-46,0,-12,-3,-12,-4,-12,-8,-12,0,0,0,-12,-12,-12, -12,-12,-12,-12,0,-8,0,-74,0,-9,-9,-9,-9,-20,-20,-20,0,0]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. O-O {8.Qd2 is the fancy move.} O-O 9. a4 Bd7 {B73: Sicilian Dragon: Classical System without 9 Nb3.} 10. Qd2 a6 11. Rfd1 Rc8 12. Nxc6 Rxc6 {[#]} 13. Bd4 $146 ({Predecessor:} 13. f3 Qc7 14. Bd3 Be6 15. Ne2 Nd7 16. Nd4 Bxd4 17. Bxd4 Ne5 18. Re1 f6 19. a5 {1/2-1/2 (30) Ilonen,I (2328)-Yloenen,O (2427) ICCF email 2017}) 13... e5 14. Be3 Qc7 15. f3 Rc8 16. a5 Be6 17. Qe1 Nh5 18. Bf1 f5 19. Ra4 Nf6 20. h3 f4 21. Bf2 g5 22. Bd3 Qf7 23. Nd5 Nxd5 (23... Bxd5 $6 24. exd5 Rxc2 25. Bf5 $16) 24. exd5 Bxd5 {[#]} 25. c4 $1 {[%mdl 512]} Bxc4 26. Bxc4 Rxc4 27. Rxc4 Rxc4 (27... Qxc4 $15 28. Rxd6 e4 29. Qxe4 Qxe4 30. fxe4 Bxb2) 28. Rxd6 $11 Qc7 29. Rd1 Qc6 (29... Bf6 $11) 30. Qd2 (30. b4 $1 $16) 30... Bf6 31. Qd3 (31. b3 $5 {[%CAl Rb3c4]} Rc2 32. Qd3 $15) 31... e4 32. fxe4 Rxe4 33. Bb6 Qe6 $36 {[%mdl 2048] Black is more active.} 34. Kf2 (34. Kh2 $15) 34... h5 $17 35. Qd5 {[#]} Qxd5 $1 ({Not} 35... Bxb2 36. Qxg5+ Bg7 37. Rd8+ (37. Qxh5 Re5 $16) 37... Kh7 38. Qxh5+ Qh6 39. Qxh6+ (39. Qf5+ Qg6 $14) 39... Kxh6 40. Rd7 $16) 36. Rxd5 $19 {[%mdl 4096] Endgame KRB-KRB} Kf7 37. Kf3 Rb4 38. Rd7+ (38. Rd3 $142) 38... Ke6 39. Rxb7 Rb3+ $2 ({Worse is} 39... Bxb2 40. Ra7 $11) (39... Rxb2 $19 {White must now prevent ...Kf5.} 40. g4 fxg3 41. Kxg3 Kd5) 40. Ke2 (40. Ke4 $11) 40... Rxb2+ $17 ({But not} 40... Bxb2 $6 41. Ra7 $11) 41. Kf1 g4 42. Rh7 (42. hxg4 $17 {was the only chance.} hxg4 43. Ra7) 42... gxh3 $19 43. gxh3 Kf5 44. Rf7 { Threatens to win with Rxf6+!} Ke5 45. Rf8 Rc2 {aiming for ...Bh4.} 46. Ba7 (46. Bd4+ $17 {only move.} Kxd4 47. Rxf6) 46... Ra2 (46... Rc6 $19 47. Ke2 Ke4 48. Re8+ Be5) 47. Bb8+ $17 Ke6 48. Bxf4 Rxa5 49. Ke2 Ra3 50. Be3 a5 51. Rb8 Ra2+ 52. Kd3 a4 53. Rb6+ Kf7 54. Rb7+ Ke8 55. Ra7 Ra1 56. Bc5 h4 57. Ra6 Bb2 58. Kc2 a3 {Strongly threatening ...Rc1+.} 59. Kb3 Rh1 60. Re6+ Kf7 61. Re3 {Cut Off at move 61} Kg6 62. Rf3 Re1 63. Rf4 {[#]} (63. Bxa3 $11 {keeps the balance.} Bxa3 64. Kxa3) 63... Rc1 ({Black should play} 63... Re2 $1 $17 {Hoping for ... a2!} 64. Rxh4 a2 65. Rg4+ Kf5 66. Kxa2 Bd4+ 67. Kb3 Bxc5) 64. Bf2 {The position is equal.} Be5 65. Rg4+ Kf5 66. Kxa3 Rc3+ 67. Kb4 Rxh3 68. Rxh4 { And White is the lucky defender. Weighted Error Value: White=0.20/Black=0.21} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.12"] [White "Yu, Jennifer"] [Black "Narciso Dublan, Marc"] [Result "0-1"] [ECO "A41"] [WhiteElo "2315"] [BlackElo "2492"] [Annotator "TA"] [PlyCount "92"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,92,17,47,37,45,41,60,45,60,-9,-7,-7,0,0,0,-18,-21,-33,-31,-33,-36,-70, -57,-50,-42,-44,-35,-52,-56,-37,-50,-53,-27,-84,-39,-51,-31,-34,-16,-68,-8,-15, -14,-8,0,0,0,0,0,0,0,0,0,0,0,-229,-258,-238,-235,-265,-260,-241,-245,-235,-227, -228,-244,-339,-391,-380,-350,-341,-330,-317,-310,-656,-649,-635,-627,-618, -603,-660,-654,-628,-627]} 1. Nf3 d6 2. d4 Bg4 3. e4 Nf6 4. Nbd2 e6 5. Bd3 Be7 6. O-O {A41:1 d4 d6: Tartakower System and Modern Defence.} O-O 7. c3 Nfd7 {[#] } 8. Qb3 $146 {White is slightly better.} ({Predecessor:} 8. Nc4 c5 9. Bf4 cxd4 10. cxd4 Nc6 11. Be2 Nf6 12. d5 exd5 13. exd5 Nb4 14. Ne3 {0-1 (48) Utkin, A (2368)-Orlinkov,M (2399) St Petersburg 2002}) 8... Qc8 9. e5 (9. Qc2 $14) 9... dxe5 $11 10. Nxe5 Nxe5 11. dxe5 Nc6 12. Nc4 Rd8 13. Qc2 Bf5 14. Be4 Qd7 15. Bf4 Bxe4 16. Qxe4 Qd3 17. Qxd3 Rxd3 18. Rfd1 Rad8 19. Rxd3 Rxd3 20. a4 g5 21. Bg3 ( 21. Be3 $11 {remains equal.}) 21... Kg7 22. Kf1 Kg6 23. Ke2 Rd5 24. b4 (24. Ne3 $11 Rd7 25. Nc4) 24... b6 (24... h5 $15 25. h3 Bf8) 25. Ne3 Rd8 26. f4 gxf4 27. Bxf4 a5 28. b5 Nb8 29. Rf1 Nd7 30. Rf3 $1 {[%CAl Rf3g3]} h5 31. Rg3+ Kh7 32. Bg5 $2 {Black keeps a firm grip on the game.} (32. Rh3 $1 $11) 32... Bxg5 $19 33. Rxg5 {[%mdl 4096] Endgame KRN-KRN} Kh6 34. h4 Nc5 35. g4 Nxa4 36. Rxh5+ Kg7 37. Nd1 Nc5 {Strongly threatening ...a4.} 38. Nf2 a4 39. Rg5+ Kf8 {Hoping for . ..a3.} 40. h5 {[#]} Ke7 $1 {...a3 is the strong threat.} 41. h6 {[#]} Rh8 $1 { aiming for ...a3.} 42. Nd3 $2 (42. h7 Kf8 43. Kd2) 42... Ne4 {Black is clearly winning.} 43. Rg7 Rxh6 44. Rg8 Nxc3+ 45. Ke3 Nxb5 46. Ra8 Rh3+ {Weighted Error Value: White=0.34/Black=0.08} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.13"] [White "Carbonell Sancho, Marc"] [Black "Niemann, Hans Moke"] [Result "0-1"] [ECO "C55"] [WhiteElo "2274"] [BlackElo "2472"] [Annotator "TA"] [PlyCount "96"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,96,41,43,35,39,36,41,36,39,29,47,34,30,39,45,42,37,45,47,40,33,0,14, -2,-7,-4,-10,-13,20,0,0,0,0,-15,19,0,-5,-104,-105,-91,-85,-157,-65,-203,-197, -223,-212,-225,-220,-487,-461,-782,-232,-233,-225,-212,-205,-244,-210,-291, -308,-624,-640,-435,-749,-791,-773,-699,-788,-741,-708,-703,-715,-796,-922, -914,-867,-787,-747,-5493,-5306,-5322,-1004,-980,-978,-931,-906,-862,-839]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 h6 5. c3 d6 6. a4 {C55: Two Knights: 4 d3, 4 d4 exd4 5 e5 and Max Lange Attack.} g6 7. O-O Bg7 8. Re1 {White is slightly better.} O-O 9. Nbd2 a6 10. a5 Be6 {[#]} 11. Bxe6 $146 ({Predecessor:} 11. Nf1 Re8 12. Qb3 Rb8 13. Ne3 Bxc4 14. Qxc4 Qd7 15. h3 Rbd8 16. Nd5 Nxd5 17. Qxd5 { 0-1 (65) Chigaev,M (2588)-Kamsky,G (2674) chess.com INT 2020}) 11... fxe6 12. d4 exd4 13. Nxd4 Qd7 14. Nxc6 Qxc6 15. Qa4 Nd7 16. Nb3 Ne5 17. f3 g5 $40 { [%mdl 128] White needs to defend precisely.} 18. Nd4 Qe8 19. Qb3 Qf7 20. Be3 c5 21. Ne2 Nd3 22. Red1 {[#]} c4 $1 {[%mdl 512]} 23. Qa3 (23. Qb6 $11 {keeps the balance.}) (23. Qxc4 Nxb2) 23... d5 $1 $17 24. Ng3 Qg6 25. Bd4 (25. Rf1 $142) 25... g4 (25... Bxd4+ $17 26. cxd4 g4 27. fxg4 Qxg4) 26. fxg4 {This move loses the game for White.} ({White must play} 26. Bxg7 $15 Qxg7 27. Qd6 gxf3 28. Qxe6+ Kh7 29. Qxd5) 26... Qg5 $19 {White must now prevent ...Bxd4+.} (26... Qxg4 27. Bxg7 Qxg7 28. Qd6 $11) 27. h3 Be5 $1 {[%CAl Re5g3]} 28. Nh5 dxe4 { Threatens to win with ...e3.} 29. Rf1 $2 (29. Bxe5 Qxe5 30. Rf1) 29... e3 30. Bxe5 (30. Rxf8+ $142 Rxf8 31. Qa4 Bxd4 32. Qxc4 e2+ 33. Qxd4 e1=Q+ 34. Rxe1 Nxe1 35. Qe4 Nxg2 36. Kxg2 Qd2+ {[%mdl 64] Double Attack} 37. Kg1 Qc1+ 38. Kh2 Qxb2+ 39. Kg1 Qf2+ 40. Kh1 Qf3+ 41. Qxf3 Rxf3 42. Kg2 Rxc3 43. Nf6+ Kg7 44. Nh5+ Kf7 45. Nf4) 30... Qxe5 $2 (30... Nxe5 31. Qd6 $17) (30... Rxf1+ 31. Rxf1 e2) 31. Qe7 Nf2 $1 ({Weaker is} 31... e2 32. Rf6 $1 $11 {[%mdl 512]}) 32. Rae1 {aiming for Rxe3!} Rf7 33. Qh4 {White wants to play Qg3.} Raf8 34. Qg3 {[#]} Qc5 $1 {Hoping for ...e2.} 35. Kh2 $2 (35. Qxe3 Nxh3+ 36. Kh2 Qxe3 {[%mdl 64] Overworked Piece} 37. Rxe3 Rxf1 38. Kxh3) 35... Ne4 {[%mdl 64] Discovered Attack. Black is clearly winning.} 36. Rxf7 Nxg3 37. Rxf8+ Qxf8 38. Nxg3 { [%mdl 4096] Endgame KQ-KRN} Qf4 39. Re2 Kh7 40. h4 h5 41. Re1 hxg4 42. Re2 e5 43. h5 Kg8 44. h6 Kf7 45. Re1 Ke6 (45... Qf6 $142 46. Rf1 {[#]} Qxf1 $1 { [%mdl 576] Deflection, Promotion} 47. Nxf1 e2) 46. h7 Qh6+ {[%mdl 64] Double Attack} 47. Kg1 Qxh7 48. Rxe3 Qb1+ {Accuracy: White = 53%, Black = 75%.} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.14"] [White "Antova, Gabriela"] [Black "Sochacki, Christophe"] [Result "0-1"] [ECO "A86"] [WhiteElo "2247"] [BlackElo "2469"] [Annotator "TA"] [PlyCount "102"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 15,102,25,21,17,35,29,22,0,35,14,33,26,26,0,0,-52,0,-20,-22,-31,-2,-38, 0,-56,-9,-20,48,41,109,114,204,191,195,16,29,0,5,0,3,-14,-13,-10,157,-14,-11, -59,0,0,27,19,147,-164,71,0,12,-33,89,-248,-251,-380,-341,-316,-146,-146,-64, -80,-73,-94,-49,-54,-47,-50,-29,-108,-95,-167,-154,-29947,-29948,-29946,-29942, -10891,-8686,-6079,-6079,-5390,-5181,-29979,-29976]} 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nh3 O-O 6. O-O d6 7. d5 Na6 8. Nc3 Nc5 9. Be3 {A86: Dutch Defence: Leningrad System: Unusual lines and 5 Nh3.} e5 10. dxe6 Nxe6 11. Rc1 { The position is equal.} Ng4 12. Bd2 c6 13. b3 Qe7 14. Nf4 Nc5 15. Qc2 (15. h3 $11 Nf6 16. b4) 15... Bd7 {[#]} (15... g5 $15 16. Nd3 f4 $1 {[%mdl 512]}) 16. Rcd1 $146 ({Predecessor:} 16. b4 Ne6 17. e3 Ne5 18. Nce2 Ng5 19. Bc3 Ne4 20. Bd4 a6 21. Nc3 Nxc3 22. Qxc3 {1-0 (48) Skembris,S (2451)-Bluebaum,K (2250) Paderborn 2006}) 16... g5 17. Nd3 Ne6 18. Qc1 f4 19. Rde1 (19. gxf4 $11 gxf4 20. h3) 19... Rf7 20. Ne4 Nd4 (20... Raf8 $11) 21. gxf4 $14 gxf4 (21... Bf5 $1 $14 22. Ng3 (22. Nxg5 Nxe2+ 23. Rxe2 Qxe2 $17) 22... Bxd3 23. exd3 Qd7) 22. Bxf4 $16 d5 (22... Ne5 $16 {was worth a try.} 23. Bg3 Re8) 23. cxd5 $18 cxd5 24. Ng3 $2 (24. Nd6 $1 $18) 24... Rc8 $11 (24... Qh4 $2 25. h3 $18) 25. Qd1 { e3 is the strong threat.} Nc2 $1 $132 {[%CAl Rc2e1][%mdl 2048] Black is fighting back} (25... Qh4 $2 26. h3 $18) 26. Bxd5 {[%mdl 64] Double Attack} Be6 $1 {[%CAl Re6d5]} 27. Bxe6 Qxe6 28. e3 {Black must now prevent Re2.} Rd7 $2 ( 28... Nxe1 $11 29. Qxe1 Rd7) 29. Qe2 $2 (29. Re2 $16 Nb4 30. Rd2 (30. Nxb4 Rxd1 31. Rxd1 Kh8 $14)) 29... Nxe1 30. Rxe1 b6 ({Black should try} 30... Qg6 $15 31. Rc1 Rxc1+ 32. Nxc1 h5) 31. e4 Rcd8 32. Nf5 h5 (32... Ne5 $11 33. Nxe5 Bxe5) 33. Nb2 $2 {[%mdl 8192]} (33. h3 $1 $16) 33... Kh7 $2 ({Black should play} 33... Bc3 $1 $19 {[%CAl Rc3e1]} 34. Rb1 Re8) 34. Nc4 (34. h3 $16 Bh6 35. Nxh6 Nxh6 36. Qxh5) 34... Qg6 {Threatens to win with ...Bc3.} 35. Kh1 b5 (35... Bd4 $15 { keeps the upper hand.} 36. Nxd4 Rxd4) 36. Na3 $2 {[%mdl 8192]} (36. Ncd6 $1 $16 ) 36... Bc3 $19 37. Rg1 {[#]} (37. Rf1 $142 Be5 38. Bxe5 Nxe5 39. Nb1 (39. Rg1 $2 Ng4 $19)) 37... Rd1 $3 {[%CAl Rd1g1][%mdl 512]} 38. Bg3 (38. Qxd1 Nxf2#) 38... Rxg1+ (38... R1d2 $1 $19 {[%CAl Rd2e2]} 39. Qxb5 Rxf2) 39. Kxg1 $17 {[#]} a6 (39... Nxf2 $1 $17 {[%mdl 512] Hoping for ...Rd1+.} 40. Nxb5 (40. Kxf2 $2 Rd2 $19) (40. Qxf2 $2 Rd1+ 41. Kg2 Rd2 $19) (40. Qxf2 Rd1+) 40... Rd2) 40. Nb1 Bf6 {Strongly threatening ...h4!} 41. h4 Be5 42. Nd2 $1 Bxg3 43. Nxg3 Qd6 44. Ndf1 (44. Nf3 $11) 44... Qd1 {[%mdl 1024] Black has strong compensation.} 45. Qb2 {[#]} (45. f3 $17 {was called for.} Ne5 46. f4 Qxe2 47. Nxe2 Nf3+ 48. Kf2 Nxh4 49. f5) 45... Rf8 $1 $19 {[%CAl Rf8f2]} 46. Nf5 $2 (46. Qc3 $17) 46... Rg8 47. N5g3 {[#]} Ne3 $1 {[%mdl 576] Deflection} 48. fxe3 Rxg3+ $1 49. Kh2 Rf3 50. Ng3 {[#]} Qe1 $1 {[%mdl 576] Double Attack} 51. Qe5 Qf2+ {[%mdl 64] Double Attack. Both players deserved the win here. Weighted Error Value: White=0.75/ Black=0.39} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.15"] [White "Csiki, Endre"] [Black "Stefanova, Antoaneta"] [Result "0-1"] [ECO "B10"] [WhiteElo "2231"] [BlackElo "2466"] [Annotator "TA"] [PlyCount "124"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,124,-2,10,12,24,5,35,28,18,22,41,18,27,0,0,-7,35,23,25,-14,0,-23,-14, -21,-18,-17,-17,-21,-15,-39,0,0,0,-40,-54,-47,-28,-45,-49,-62,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,-5,0,-5,0,-2,0,0,0,-316,-283,-6079,-21,-95,0,-129,-94, -420,-403,-403,-275,-642,-514,-860,-837,-804,-774,-2325,-2429,-1942,-731,-971, -888,-2386,-2180,-1766,-1377,-2365,-1281,-1267,-1064,-2369,-2297,-29963,-29961, -29965,-4622,-4618,-4618,-29977,-29978,-29978,-29979,-29983,-29980,-29982, -29984,-29983,-29979]} 1. e4 c6 2. Nf3 d5 3. d3 dxe4 4. dxe4 Qxd1+ 5. Kxd1 Nf6 6. Nfd2 {B10: Caro-Kann: 2 d3 and 2 c4.} h5 7. h4 g6 8. f3 {White is slightly better.} Bh6 {[#]} 9. a4 $146 ({Predecessor:} 9. Nc4 Bxc1 10. Kxc1 Be6 11. Nbd2 Nbd7 12. c3 Bxc4 13. Nxc4 Nb6 14. Na5 O-O-O 15. Kc2 {1/2-1/2 (34) Erdos,V (2618)-Antal,G (2571) Ajka 2020}) 9... a5 10. b3 O-O 11. Ba3 (11. Nc4 $5 { [%CAl Rc1h6]} Rd8+ 12. Bd2 $11) 11... Re8 12. Nc4 Nfd7 13. Bb2 Bf4 14. Bd3 Nc5 15. Nb6 Nxd3 16. cxd3 Ra6 17. Nxc8 Rxc8 18. Na3 Nd7 19. d4 b5 20. axb5 cxb5 21. Nxb5 (21. Bc1 $5 {[%CAl Rc1f4]} Bg3 22. Rh3 $11) 21... Rb6 22. Nc3 Rxb3 { [%mdl 64] Double Attack} 23. Kc2 $1 {[%CAl Rc2b3]} Rb4 24. Rxa5 Nb6 (24... Bg3 $15) 25. Rc5 $11 Rb8 $1 26. Bc1 Bd6 27. Rb5 Rc8 {Strongly threatening ...Rxb5.} 28. Rxb4 Bxb4 29. Bd2 Bxc3 30. Bxc3 {[%mdl 4096] Endgame KRB-KRN} Na4 31. Kb3 $1 {Bb4 is the strong threat.} Rxc3+ ({Much weaker is} 31... Nxc3 $6 32. Rc1 $16) 32. Kxa4 {KR-KR} Rc4+ 33. Kb3 Rxd4 34. Kc3 Rd6 35. Kc2 Kg7 36. Rb1 Kf6 37. Rb5 {Hoping for e5+.} Ra6 38. f4 $2 {[%mdl 8192]} (38. g3 $11 {and White is okay.}) 38... Ra2+ $19 39. Rb2 $2 (39. Kd3 Rxg2 40. Ke3) 39... Ra1 $2 ({ Better is} 39... Rxb2+ $19 40. Kxb2 e5) 40. g3 (40. Rb5 $11) 40... Re1 ({ Black should try} 40... Rg1 $17 {And now ...Rg2+ would win.} 41. Rb6+ e6 42. e5+ Kf5) 41. Rb6+ (41. e5+ $11 Kg7 42. Rb3) 41... Kg7 42. e5 $2 {[%mdl 8192] [#] Now White is beyond hope.} (42. Rb3 $17 {is a better chance.}) 42... Re2+ $1 43. Kd3 Rg2 44. e6 $2 (44. Rb7 Rxg3+ 45. Ke2) 44... Rxg3+ 45. Kd4 (45. Ke2 $142 f5 46. Rb1) 45... f5 46. Kd5 Kf6 47. Kd4 Rf3 48. Kd5 Rh3 (48... Rxf4 $142 49. Rb8 Rxh4 50. Rf8+ Kg5) 49. Ra6 Rxh4 50. Ra8 Rxf4 51. Rf8+ Kg5 52. Rf7 Re4 53. Rxe7 h4 54. Rh7 Re3 55. Kd6 f4 56. e7 f3 57. Rh8 Kg4 58. Rh6 {[#]} Rxe7 $1 {[%mdl 512] Black mates.} 59. Kxe7 g5 60. Ke6 h3 61. Ke5 f2 62. Rf6 h2 { Weighted Error Value: White=1.11/Black=0.44} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.16"] [White "Korobov, Anton"] [Black "Lever, Erwan"] [Result "1-0"] [ECO "B40"] [WhiteElo "2683"] [BlackElo "2200"] [Annotator "TA"] [PlyCount "79"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 24,79,-10,-25,-18,-75,0,0,0,0,0,0,0,0,0,0,35,28,33,34,38,37,68,79,76,83, 76,85,174,82,67,71,91,0,162,165,163,150,133,139,399,409,418,418,413,391,460, 417,402,388,599,600,553,535,768,750,29979,1867]} 1. e4 c5 2. Nf3 e6 3. g3 Nc6 4. Bg2 Nf6 5. d3 d5 6. Nbd2 Be7 7. O-O Qc7 8. Re1 b6 9. Qe2 Bb7 10. e5 Nd7 11. Nf1 h6 12. h4 O-O-O 13. c3 Kb8 {C00: French: Unusual White 2nd moves.} 14. a3 { [#]} (14. d4 $11 {remains equal.}) 14... Rdg8 ({Black should try} 14... g5 $1 $17 {[%mdl 512]}) 15. N1h2 $1 $11 g5 {The position is equal.} 16. hxg5 $1 hxg5 17. Ng4 Rh5 18. b4 Rgh8 {[#]} 19. d4 $146 ({Predecessor:} 19. b5 Na5 20. d4 cxd4 21. cxd4 Nc4 22. Qc2 Qc8 23. a4 a5 24. bxa6 Bxa6 25. Rb1 {0-1 (36) Kresz, A (1949)-Kokeny,N (2268) Balatonlelle 2019}) 19... c4 20. a4 Qd8 21. Ba3 Qf8 22. Qa2 f5 23. exf6 $1 Nxf6 24. Nxf6 Qxf6 25. b5 Nd8 (25... Na5 $16) 26. g4 ( 26. Ne5 $18 {has better winning chances.} Qh6 27. Kf1 (27. Bxe7 $2 {is a self mate.} Rh1+ {[%mdl 64] Back Rank} 28. Bxh1 Qxh1#) 27... Bxa3 28. Qxa3) 26... R5h6 $16 27. Ne5 $36 {[%mdl 2048] And now Nd7+ would win. White is really pushing.} Kc7 28. a5 (28. Re3 $16) 28... Nf7 $2 (28... Bxa3 $1 $11 29. Qxa3 Nf7 ) 29. Bxe7 Qxe7 30. axb6+ axb6 {[#] White must now prevent ...Nxe5.} 31. Nxc4 $1 {[%mdl 512] aiming for Qa7.} dxc4 $2 {[%mdl 8192] [#] This move loses the game for Black.} (31... Nd8 $16) 32. Bxb7 $1 $18 Qd6 33. Qa7 {Strongly threatening Rxe6!} Kd8 34. Re3 Ke7 35. Bc6+ Kf8 36. Qa3 Rh4 (36... R8h7 { keeps fighting.} 37. Qxd6+ Nxd6) 37. Qxd6+ Nxd6 38. Rxe6 Rxg4+ 39. Kf1 Ne4 40. Re8+ {Accuracy: White = 81%, Black = 36%.} (40. Ra7 $142 Rh1+ 41. Ke2 Nxc3+ { [#]} 42. Kd2 $1 {[%mdl 512]} Re4 43. Rf6+ Kg8 44. Kxc3 Rh3+ 45. Kxc4) 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.17"] [White "Grigoryan, Karen H."] [Black "Martin Duque, Jesus"] [Result "1-0"] [ECO "E17"] [WhiteElo "2659"] [BlackElo "2422"] [Annotator "TA"] [PlyCount "67"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,67,14,21,37,11,12,7,9,2,9,0,8,9,55,32,55,54,89,91,89,97,86,86,125, 132,135,140,129,147,146,113,199,199,206,207,242,235,252,252,252,252,252,252, 252,245,429,429,429,427,412,418,412,407,471,446]} 1. Nf3 Nf6 2. c4 b6 3. d4 e6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. Re1 {The modern move.} Na6 8. Nc3 Ne4 { E18: Queen's Indian: Old Main Line (4 g3 Bb7 5 Bg2 Be7 6 0-0 0-0 7 Nc3).} 9. Bd2 d5 10. cxd5 exd5 {The position is equal.} 11. Bf4 c5 12. Rc1 Re8 {[#]} 13. h4 $146 ({Predecessor:} 13. a3 Bf6 14. Be5 Bxe5 15. Nxe5 cxd4 16. Qxd4 Nac5 17. Rcd1 Nxc3 18. Qxc3 Qf6 19. Ng4 Qxc3 20. bxc3 {1/2-1/2 (31) Leko,P (2723) -Wojtaszek,R (2744) Beijing 2014}) 13... cxd4 14. Nb5 $1 ({But not} 14. Qxd4 $2 Bc5 $19) 14... Bb4 15. Rf1 d3 16. exd3 Nd6 17. Nbd4 Bc5 18. a3 Qf6 19. Bg5 Qg6 20. b4 $36 {[%mdl 2048] White has strong initiative.} Bxd4 21. Nxd4 h6 22. Bf4 Nf5 (22... Qf6 $16 23. Be3 Rac8) 23. Nxf5 $18 Qxf5 24. d4 Qd7 {[#]} 25. Kh2 $1 Rac8 26. Bh3 Rxc1 27. Bxd7 Rxd1 28. Rxd1 Rd8 29. Bh3 Bc6 $2 (29... b5 {was called for.} 30. Rc1 Nb8) 30. Rc1 Bb5 {[#]} 31. Rc8 $1 {[%CAl Rc8d8]} Rxc8 32. Bxc8 Bc4 {If Black can now play ...Kf8 this consolidates a bit.} 33. Bd6 f6 34. a4 {Weighted Error Value: White=0.03/Black=0.23} 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.18"] [White "Svoboda, Vaclav"] [Black "Dragnev, Valentin"] [Result "1/2-1/2"] [ECO "D82"] [WhiteElo "2407"] [BlackElo "2564"] [Annotator "TA"] [PlyCount "60"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,60,17,28,26,49,8,80,0,23,29,10,18,16,18,11,32,23,18,27,26,35,37,48, 50,47,51,113,67,69,55,63,61,83,0,60,0,73,2,0,0,0,0,1,0,4,0,0,0,13]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c5 6. dxc5 Qa5 7. Rc1 O-O 8. cxd5 {D83: Grünfeld: 4 Bf4 Bg7 5 e3 0-0.} Nbd7 9. Bc4 Nxc5 {[#]} 10. Nf3 (10. Nge2 $1 $16 ) 10... Qb4 11. Qe2 b5 $1 {[%CAl Rb5c4]} 12. Bxb5 Nxd5 $1 {[%CAl Rg7c3]} 13. Be5 Bxe5 14. Nxe5 Nxc3 15. bxc3 ({But not} 15. Rxc3 $2 Ne4 $19) 15... Qe4 {[#]} 16. f4 $146 {[%mdl 2048] aiming for Bc6. White has some pressure.} ({Inferior is} 16. Bc6 Qxe5 17. Bxa8 Ba6 $17) ({Predecessor:} 16. Nf3 Rb8 17. O-O Bb7 18. Rfd1 Qf5 19. Nd4 Qf6 20. f3 Rfc8 21. Bc4 Na4 22. Rd2 {1-0 (60) Benson,O (2010) -Ratsma,M (2137) Groningen 2014}) 16... Rb8 17. Bc6 Qf5 {With the idea ...Ba6.} 18. O-O Ba6 19. c4 Rb6 ({Black should play} 19... f6 $14 20. Bd5+ Kg7) 20. Qf3 {Hoping for Qd5.} Nd3 21. Nxd3 Qxd3 22. Be4 Qa3 {[#]} 23. Rc2 ({White should try} 23. f5 $1 $16) 23... Rc8 (23... Rb2 $11) 24. Rfc1 (24. f5 $1 $14) 24... Rc5 (24... f5 $11 {keeps the balance.} 25. Bd5+ e6) 25. Qe2 (25. f5 $16) 25... Rxc4 $11 {The position is equal.} 26. Rxc4 {Strongly threatening Qd2.} Qxc1+ $1 27. Rxc1 Bxe2 28. Kf2 Rb2 29. Rc2 Rxc2 30. Bxc2 Bb5 {Weighted Error Value: White=0.22/Black=0.17} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.19"] [White "Lin, Yingrui"] [Black "Maze, Sebastien"] [Result "0-1"] [ECO "E71"] [WhiteElo "2399"] [BlackElo "2557"] [Annotator "TA"] [PlyCount "82"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 21,82,45,38,50,54,58,69,30,53,-25,59,-17,-17,-17,-20,0,-19,-201,-125, -115,-138,-125,-134,-139,-135,-114,-71,-113,-87,-79,-46,-51,-56,-50,-31,-71, -83,-83,-71,-198,-204,-442,-429,-654,-647,-631,-626,-1054,-1047,-1467,-1351, -2752,-2466,-29990,-29991,-29991,-29992,-29993,-29991,-29991,-29992,-29992, -29993]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 Na6 7. Nf3 e5 8. d5 Nc5 9. Nd2 a5 10. Be2 Bd7 $1 {[%mdl 4] is now more promising than 10... Ne8.} 11. g4 c6 12. h4 {E92: King's Indian: Classical: 6 Be2 e5:7 dxe5, 7 Be3 and Petrosian System without 7...Nbd7.} cxd5 13. cxd5 a4 14. h5 {[#] White is slightly better.} Rc8 $146 ({Predecessor:} 14... a3 15. b3 Qa5 16. Qc2 Nxg4 17. Bxg4 Bxg4 18. Nc4 Qb4 19. Bd2 Bxh5 20. Rxh5 gxh5 {0-1 (34) Gharibyan,M (2433) -Melkumyan,H (2663) chess.com INT 2020}) 15. Rc1 (15. Rb1 $14) 15... b5 ({ Black should play} 15... Bxg4 $1 $11 16. Bxc5 Bxe2 17. Kxe2 Rxc5) 16. g5 (16. h6 $14 Bh8 17. f3) 16... Nxh5 $11 17. Bxc5 ({Wrong is} 17. Bxb5 $2 Bxb5 18. Bxc5 Rxc5 $19) ({Of course not} 17. Nxb5 Nf4 $17) 17... Rxc5 18. Bxh5 b4 19. Bg4 $2 (19. Ne2 $11 {and White has nothing to worry.}) 19... bxc3 20. Rxc3 Rxc3 21. bxc3 Be8 22. Nf3 Bb5 23. c4 Bd7 24. Nd2 Be8 25. Nf3 Qc7 26. Qd3 Bd7 27. Bxd7 Qxd7 28. Qe3 Rb8 $36 {[%mdl 2048] Threatens to win with ...Rb1+. Keeping White busy.} 29. Nd2 Bf8 30. f3 (30. Qh3 $17 Qxh3 31. Rxh3) 30... Be7 $19 31. Ke2 $2 (31. Rh2 {was called for.}) 31... Rb2 32. Rg1 (32. a3 $142 Ra2 33. Rh2) 32... Qh3 33. Qf2 Rxa2 34. c5 dxc5 35. Rg3 {[#]} Qd7 $1 {( -> ...Qb5+)} 36. Qe3 Qb5+ 37. Qd3 c4 {Black mates.} 38. Qc3 {[#]} Bb4 $1 39. Qxe5 c3+ {[%mdl 64] Pin } 40. Ke3 cxd2 41. Rg1 Qb6+ {Weighted Error Value: White=0.95/Black=0.16} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.20"] [White "Romanishin, Oleg M"] [Black "Mendonca, Leon Luke"] [Result "1/2-1/2"] [ECO "A05"] [WhiteElo "2402"] [BlackElo "2516"] [Annotator "Shahid"] [PlyCount "70"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,70,0,0,0,0,12,0,1,6,7,-28,-33,-45,-44,-41,-20,-38,-28,-42,-37,-35, -30,-43,-49,-54,-56,-70,-77,-56,-64,-60,-37,-69,-67,-94,-31,-26,-33,-31,-31, -75,-31,-24,-27,-27,-26,-25,-25,-27,0,0,0,0,0,0,0,0,0,0,23]} 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. c4 dxc4 5. O-O Nbd7 6. Na3 Nb6 7. Qc2 Be6 {A11: English Opening: 1...c6.} 8. Ng5 Bg4 {8...Bg4 scores better than 8...Qd7.} 9. Nf3 Bxf3 10. Bxf3 Qd4 {[#]} 11. e3 $146 ({Predecessor:} 11. Rb1 h5 12. b3 cxb3 13. Rxb3 Qa4 14. d3 e6 15. Nc4 Nxc4 16. dxc4 b6 17. Qc3 {1-0 (45) Schubert,F (2465) -Haugen,A (2526) ICCF email 2012}) 11... Qd3 12. b3 {[%CAl Rb3c4]} Qxc2 13. Nxc2 cxb3 14. axb3 e6 15. d4 Nfd5 16. e4 Nb4 17. Na3 Be7 18. Be3 O-O 19. Rfc1 Rfd8 20. Nc4 Nxc4 21. bxc4 b6 (21... a5 22. e5 (22. c5 e5) 22... f6) 22. e5 a5 23. Be4 Rac8 (23... a4) 24. c5 $1 $15 {[%CAl Rc5b6]} bxc5 25. dxc5 Ra8 26. Ra4 Nd5 (26... Nd3 $5 {[%CAl Rd3c1]} 27. Rb1 Nxe5 $15) 27. Bd2 Rdb8 28. Rxa5 Rxa5 29. Bxa5 Rb5 30. Bb6 g5 31. Rb1 {The position is equal.} Rxb1+ 32. Bxb1 Bf8 33. Bc2 Bg7 34. Ba4 Bxe5 35. Bxc6 Nxb6 {Weighted Error Value: White=0.08/Black=0.07 } 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.21"] [White "Cuenca Jimenez, Jose Fernando"] [Black "Ootes, Lars"] [Result "0-1"] [ECO "B07"] [WhiteElo "2528"] [BlackElo "2373"] [Annotator "TA"] [PlyCount "144"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 10,144,47,22,34,45,48,-7,-8,-7,0,0,28,-31,-26,-50,-27,-37,-46,-51,-53, -55,-53,-66,-85,-75,-60,-60,-19,-36,-17,-17,-5,-46,-36,-41,-42,-42,-31,-45,-22, -32,-32,-43,-33,-42,-43,-57,-51,-53,-56,-74,-42,-117,-135,-139,-89,-98,-93, -142,-127,-143,-121,-135,-37,-115,-97,-138,-104,-100,-105,-126,-100,-126,-120, -102,-120,-140,-108,-141,-128,-224,-216,-206,-181,-181,-133,-181,-144,-181,-95, -126,-126,-126,-126,-126,-126,-126,-93,-181,-181,-438,-438,-438,-438,-427,-422, -580,-533,-611,-610,-580,-535,-784,-785,-909,-909,-897,-893,-886,-847,-905, -918,-913,-893,-817,-769,-937,-911,-877,-885,-29980,-29981,-29981,-29982, -29986,-29987]} 1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 c6 5. Qd2 Nbd7 6. f4 Bg7 { B07: Pirc Defence: Miscellaneous Systems.} 7. e5 Nd5 {[#]} 8. Nge2 $146 ({ Better is} 8. exd6 $14 f6 9. Nxd5 cxd5 10. Bh4) ({Predecessor:} 8. exd6 N7f6 9. Nxd5 Nxd5 10. dxe7 Qd6 11. c4 Nxe7 12. O-O-O O-O 13. Bxe7 Qxe7 14. Nf3 { 0-1 (26) Faustino,T-Parente,A (1739) ICCF email 2011}) 8... f6 {The position is equal.} 9. exf6 exf6 {And now ...Nxc3 would win.} 10. Bh4 $1 Ne7 11. Ng1 ( 11. d5 $11) 11... O-O $36 {[%mdl 2048] Black has the initiative.} 12. Nf3 Nb6 13. Be2 Nf5 14. Bf2 d5 15. O-O Nd6 16. b3 Re8 17. Ne1 Bf5 18. g4 Be4 19. Nd3 Nbc8 20. Nc5 f5 21. g5 (21. Rae1 {looks sharper.} Nb6 22. a4 a5 23. h3 Qe7 24. Kh2) 21... b6 22. Nd3 Bxd3 23. cxd3 a5 24. a4 Nb7 25. Bf3 Qd6 26. Ne2 Nd8 27. Rac1 Ne6 28. Rc2 Ne7 29. Rfc1 Reb8 30. Ra2 b5 31. Rc3 (31. Qe3 $15) 31... bxa4 $17 32. Rxa4 Rb5 33. Be3 Qb8 34. Qa2 Kf7 35. Kg2 Qb6 36. h4 Rb8 (36... h5 $17 37. gxh6 Bxh6) 37. Qd2 ({White should play} 37. h5 $1 $15) 37... Rb4 38. Qa2 Rxb3 39. Rxb3 Qxb3 40. Rxa5 Qxd3 41. Ra3 Qb1 42. Qxb1 Rxb1 43. Ra4 Nc8 44. h5 Bf8 45. h6 (45. Ra6 $17 Rb6 46. Ra8) 45... Bd6 $1 $19 46. Ra6 Ne7 47. Kf2 Bc7 48. Ra8 Rb2 {aiming for ...Bxf4.} 49. Ke1 Bb6 ({Black should try} 49... Bb8 $19 50. Kd1 Rb3) 50. Kd1 Rb4 51. Kd2 {[#]} Bc7 $1 ({Much worse is} 51... Nxd4 $6 52. Nxd4 Bxd4 53. Bxd4 $11) 52. Kc3 Rb6 53. Kc2 Bb8 54. Ra4 {[#]} (54. Nc1 $17) 54... Nc8 $1 55. Ra8 $2 (55. Bg2) 55... Na7 56. Nc3 {intending Nxd5.} Nc7 57. Rxb8 Rxb8 58. Na4 Ne6 59. Nc3 Nc8 60. Be2 Rb4 61. Kd3 {Cut Off at move 61} Nd6 62. Bd1 Nc4 63. Bc1 Nb2+ 64. Bxb2 Rxb2 {[%mdl 4096] Endgame KRN-KBN} 65. Ke3 Rb4 66. Ne2 Ke7 67. Bc2 Kd6 68. Kd3 c5 69. dxc5+ Kxc5 70. Ke3 Nd4 {Black mates. } 71. Nxd4 Rxd4 72. Bxf5 gxf5 {Weighted Error Value: White=0.25/Black=0.15} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.22"] [White "Alvarez Albiol, Victor"] [Black "Garriga Cazorla, Pere"] [Result "0-1"] [ECO "B31"] [WhiteElo "2206"] [BlackElo "2487"] [Annotator "TA"] [PlyCount "78"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,78,13,13,11,15,0,19,0,0,0,0,-20,50,61,39,-44,42,37,31,33,33,35,51, -45,-58,-287,-261,-268,-275,-252,-162,-177,-187,-179,-177,-238,-141,-329,-328, -335,-340,-373,-372,-414,-436,-431,-421,-403,-406,-397,-391,-408,-311,-1061, -1060,-837,-216,-29993,-29994,-29994,-29995,-29995,-29994]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. O-O Bg7 6. Re1 Nh6 7. c3 O-O 8. d4 cxd4 9. cxd4 d5 10. e5 {B31: Sicilian: 2...Nc6 3 Bb5 g6.} f6 11. e6 {outshines the older 11. exf6.} Nf5 12. Nc3 {The position is equal.} Qd6 13. Qe2 {[#]} g5 $146 ({ Predecessor:} 13... Qb4 14. a3 Qb3 15. h4 a5 16. Bf4 Ba6 17. Qd2 h5 18. Rac1 Rfc8 19. Ne2 a4 {1-0 (34) Saric,I (2677)-Saric,A (2541) Pozega 2018}) 14. g4 Nh4 (14... Nh6 $1 $11) 15. Nxh4 $14 gxh4 16. Kh1 (16. Na4 $1 $14) 16... f5 ({ Black should play} 16... c5 $15) 17. Bg5 {Threatens to win with gxf5.} f4 18. Rad1 Rb8 $1 {[%CAl Ba8b8,Bb8b2,Bb2e2][%mdl 32]} 19. a3 f3 20. Qe3 ({White should try} 20. Qd2 $1 $14) 20... Rxb2 $15 21. Na4 $2 {[#]} (21. Bxh4 $15 Rb3 22. Bg3 Qxe6 23. Qxe6+ Bxe6 24. Rxe6 Rxc3 25. Rxe7) 21... Re2 $1 $19 {[%CAl Re2e3][%mdl 512]} 22. Rxe2 fxe2 23. Qxe2 Qxe6 24. Qxe6+ Bxe6 25. h3 Rxf2 26. Bxe7 (26. Bxh4 $142 Re2 27. Nc5) 26... Rf4 (26... Rf3 $19 27. Kg2 Rg3+ 28. Kh2 {[#]} h5 $1 {[%mdl 512]}) 27. Bc5 $2 {[#] White does not recover from this.} ( 27. Nc5 $17 Bf7 28. Bxh4) 27... h5 $1 {[%mdl 512]} 28. gxh5 Bxh3 29. Bxa7 Bg4 30. Rd2 Rf1+ 31. Kg2 Rf3 {...Bh6 is the strong threat.} 32. Bb8 Rxa3 33. Nc5 Bh6 34. Rb2 Bc1 35. Rb7 $2 (35. Rb3) 35... h3+ 36. Kh1 Ra2 $2 (36... Ra1 { ( -> ...Bf4+)} 37. Kh2 Ra2+ 38. Kg3 Bc8) 37. Ra7 $2 (37. Rb3 $19) 37... Bf3+ { Black mates.} 38. Kg1 Be3+ 39. Kf1 Rxa7 {Weighted Error Value: White=0.89/ Black=0.46} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.23"] [White "Gines Esteo, Pedro Antonio"] [Black "Eden, James"] [Result "1-0"] [ECO "E90"] [WhiteElo "2437"] [BlackElo "2323"] [Annotator "TA"] [PlyCount "55"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,55,27,36,33,44,36,46,36,43,18,12,0,232,224,223,215,380,376,422,452, 435,443,450,432,367,444,485,471,470,459,478,306,479,478,516,506,605,576,594, 609,648,635,618,552]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. h3 e5 7. d5 Nh5 8. g3 {E90: King's Indian: Classical: Early deviations and 6 h3.} f5 9. exf5 gxf5 10. Nh4 {White is slightly better.} Nf4 11. gxf4 Qxh4 12. fxe5 {And now Rg1 would win.} Bxe5 $2 {[#]} (12... Nd7 $11 13. e6 Bxc3+ 14. bxc3 Qe4+ {[%mdl 64] Double Attack} 15. Be3 Qxh1) 13. Rg1+ $1 $18 Kh8 {[#]} 14. Bg5 $1 {[%CAl Rg5h4] [#]} Re8 $146 (14... Qd4 15. Qxd4 Bxd4) ({Predecessor:} 14... Qd4 15. Qxd4 Bxd4 16. Nb5 Bb6 17. c5 dxc5 18. Bf4 Ba5+ 19. b4 Bxb4+ 20. Kd1 Re8 21. Nxc7 Re4 22. Bh6 Bc3 23. Rc1 Be5 24. Nxa8 b6 25. Rc4 {1-0 (25) Lalith,B (2580)-Pijpers,A (2474) Leiden 2019}) 15. Qe2 Bxc3+ 16. bxc3 Rxe2+ 17. Bxe2 Qxg5 18. Rxg5 Na6 19. Kd2 Nc5 {White must now prevent ...Ne4+.} 20. Bd3 Bd7 21. Re1 Rg8 22. Rxg8+ Kxg8 {[%mdl 4096] Endgame KRB-KBN} 23. Re7 {White is clearly winning.} a5 24. h4 c6 25. Bc2 cxd5 26. cxd5 b5 27. a3 h5 28. Ke3 {Black did not feel at home in the position after the opening. Weighted Error Value: White=0.02/Black=0.50} 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.24"] [White "Boyer, Mahel"] [Black "Siebrecht, Sebastian"] [Result "1-0"] [ECO "B20"] [WhiteElo "2307"] [BlackElo "2429"] [Annotator "TA"] [PlyCount "81"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,81,13,15,23,28,25,41,31,-111,0,-87,-83,-108,-27,-71,-65,-64,-64,-57, -63,-70,-44,-57,-48,-55,-47,-60,0,0,37,18,92,94,250,175,178,183,176,183,281, 286,277,268,360,374,340,353,336,315,338,309,338,329,335,302,329,325,449,388, 563,560,900,895,6231,6227,29982,5427]} 1. e4 c5 2. d3 g6 3. g3 Bg7 4. Bg2 Nc6 5. f4 d6 6. Nf3 e5 7. O-O Nge7 8. Nc3 O-O 9. f5 {is cutting edge theory.} gxf5 {B25: Closed Sicilian: 3 g3, lines without early Be3.} 10. Nh4 {[%CAl Re4f5]} fxe4 11. dxe4 Nd4 {White is slightly better.} 12. Qh5 (12. Rf2 $14 {stays ahead.}) 12... f6 {[#]} (12... Nxc2 $17 13. Rb1 f6) 13. Nf5 $146 (13. Rf2 $11 { remains equal.}) ({Predecessor:} 13. Rf2 Be6 14. Be3 Qd7 15. Qd1 f5 16. Qd2 fxe4 17. Rxf8+ Rxf8 18. Nxe4 b6 19. c3 {0-1 (28) Robichaud,L-Duong,T (2330) Montreal 2002}) 13... Bxf5 $17 (13... Nxc2 $6 14. Nxg7 Nxa1 15. Qh6 $14) 14. exf5 d5 (14... Nxc2 $17 15. Rb1 d5) 15. g4 e4 (15... Nxc2 16. g5 $11) 16. Rf2 $1 Qe8 17. Qh3 Rd8 18. Be3 Nec6 19. Rd1 Rf7 20. Kh1 b6 21. Qg3 Bf8 (21... Kh8 $15) 22. g5 $1 $11 Bd6 23. Qg4 Ne5 (23... Nb4 $11) 24. Qh5 $16 Be7 $2 {A mistake that costs the game.} (24... Bc7 $16) 25. g6 hxg6 26. fxg6 Rg7 {[#]} 27. Nxd5 $1 {[%mdl 576] Remove Defender} Rxd5 (27... Qxg6 {might work better.} 28. Qxg6 Nxg6) 28. Bxe4 $18 Rd6 {[#] Threatens to win with ...f5.} 29. Bh6 $1 { [%CAl Rh6g7]} Rxg6 30. Bxg6 Nxg6 {[#]} ({But not} 30... Qxg6 $2 {[#]} 31. Rg1 $1 $18 {[%mdl 512]}) 31. Rg2 $1 {[%mdl 512]} f5 {Threatening ...Bf8.} 32. c3 Bf8 {And now ...Bxh6 would win.} 33. cxd4 {aiming for Bf4.} Bxh6 34. Qxh6 Qe4 35. Rf1 ({Don't do} 35. Kg1 Kf7 $18) 35... cxd4 36. Rf4 Qe1+ 37. Rg1 Qe8 (37... Qe6 $142 38. h4 (38. Rxd4 Kf7 $14) 38... Kf7) 38. h4 d3 {Black hopes to continue with ...d2.} 39. Rd4 Qc6+ 40. Kh2 Qc7 {[#]} 41. Kh3 $1 {[%mdl 512] Weighted Error Value: White=0.21/Black=0.53} 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.25"] [White "Bulmaga, Irina"] [Black "Garcia Jimenez, Francisco Javier"] [Result "1/2-1/2"] [ECO "B01"] [WhiteElo "2424"] [BlackElo "2288"] [Annotator "TA"] [PlyCount "112"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,112,48,70,23,20,20,25,11,18,16,13,21,32,29,38,39,36,21,21,21,21,21,21, 21,21,21,31,0,0,0,0,-20,21,5,0,0,3,17,9,0,0,0,0,0,0,0,20,21,21,18,18,19,33,33, 33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,33,43,8,83,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 a6 6. a4 {B01: Scandinavian Defence.} Nc6 7. h3 Bf5 8. Bc4 { White has an edge.} Nb4 9. Bb3 e6 10. Nh4 {[#]} Bd3 $146 ({Predecessor:} 10... Bg6 11. O-O Bh5 12. g4 Bg6 13. Nxg6 hxg6 14. Qf3 Be7 15. Re1 O-O 16. Bf4 c6 { 1/2-1/2 (47) Todorovic,G (2476)-Piskur,M (2285) Skopje 2014}) 11. Be3 Nfd5 12. Nxd5 Nxd5 13. Bxd5 exd5 14. Qxd3 Qxh4 15. O-O Bd6 16. Rfe1 O-O 17. Qb3 Qe4 18. Re2 b5 19. Rae1 Rab8 20. a5 Rbe8 21. f3 Qf5 $1 22. Bd2 Re6 23. Rxe6 fxe6 24. Bb4 Bg3 $1 {[%CAl Rg3e1]} 25. Re2 Rf6 26. Be1 Bd6 27. Bb4 {White wants to play Bxd6.} Qf4 28. Bxd6 Qxd4+ 29. Qe3 Qxe3+ 30. Rxe3 cxd6 $11 {[%mdl 4096] Endgame KR-KR} 31. Rc3 Rf4 $1 {[%CAl Rf4a4]} 32. b3 d4 33. Rc6 d3 $1 34. cxd3 Rd4 35. Rxa6 {[#] Threatens to win with Rb6.} Rxd3 36. b4 Rd4 37. Kf2 Kf7 38. Ke3 Rxb4 39. Rxd6 Ra4 40. a6 Kf6 41. Rb6 h6 (41... g5 $1 $11) 42. h4 ({But not} 42. Rxb5 Rxa6 43. h4 g5 $11) (42. Kd3 $16) 42... Rxh4 {The position is equal.} 43. Rxb5 Ra4 44. Rb6 h5 45. Kd3 g5 46. Kc3 Kf5 47. Kb3 Ra1 48. Kb4 {[#] Rb5+ is the strong threat.} e5 49. Kb5 e4 50. fxe4+ Kxe4 51. Rc6 Kf4 52. Rc3 {Black must now prevent Rc5.} h4 53. Kb6 {Hoping for Rf3+.} g4 54. a7 Rb1+ 55. Kc7 Ra1 56. Kb8 Rb1+ {Weighted Error Value: White=0.05/Black=0.05} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.26"] [White "Ortega Serra, Marc"] [Black "Gatineau, Yovann"] [Result "0-1"] [ECO "E28"] [WhiteElo "2288"] [BlackElo "2423"] [Annotator "TA"] [PlyCount "82"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 21,82,-22,-10,-59,-48,-59,-63,-108,-102,-115,-104,-104,-96,-103,-97, -111,-104,-104,-92,-104,-98,-97,-93,-106,-63,-112,-34,-70,-48,-163,-207,-184, -199,-252,-243,-302,-290,-374,-375,-372,-367,-412,-426,-444,-428,-447,-448, -440,-441,-603,-568,-888,-835,-29971,-29973,-29982,-29983,-29983,-29984,-29981, -29982,-29995,-522]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. a3 Bxc3+ 6. bxc3 b6 7. Bd3 Bb7 8. f3 c5 9. Ne2 Nc6 10. O-O Na5 11. e4 Ne8 12. f4 {E28: Nimzo-Indian: Sämisch: 5...0-0 6 e3.} f5 13. e5 {[#]} d6 $146 ({Predecessor:} 13... Ba6 14. d5 Bxc4 15. Bxc4 Nxc4 16. dxe6 dxe6 17. Qc2 Nc7 18. Rd1 Qe7 19. Qa2 b5 20. a4 a6 21. Bd2 Rfd8 {0-1 (32) Nakhbayeva,G (2360)-Tan,Z (2509) Ashkhabad 2017}) 14. dxc5 {Black is slightly better.} dxc5 15. Ng3 Ba6 16. Qe2 Qd7 17. Rd1 Qa4 {[%CAl Ra6c4]} 18. Nf1 Bxc4 19. Bxc4 Nxc4 20. Ne3 Nxe3 21. Bxe3 Nc7 22. c4 Rfd8 23. Bf2 Rac8 (23... Rxd1+ $17 24. Rxd1 Qxa3) 24. h4 Rxd1+ 25. Rxd1 {[#] Black continues to play with concentration.} (25. Qxd1 $15 Qe8 26. Qf3) 25... b5 $1 $19 ({Don't do} 25... Qxa3 26. Qc2 $15) 26. Rc1 Qxa3 27. Qd2 ( 27. Qf1 $142) 27... bxc4 28. Rc3 Qa4 {Hoping for ...Nd5.} 29. Qc1 Nd5 30. Rxc4 Qb5 31. g3 a5 32. Rxc5 Rxc5 33. Bxc5 Qd3 34. Bf2 Nc3 {( -> ...Ne2+!)} 35. Kh2 { If only White now had time for Qa3....} h6 36. Qa3 {[#]} Qd2 $1 37. Kg1 Ne4 { Black mates.} 38. Ba7 Qd1+ 39. Kg2 Qe2+ 40. Kg1 Nd2 41. Bf2 Qf1+ {Weighted Error Value: White=0.58/Black=0.07} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.27"] [White "Travadon, Loic"] [Black "Peycheva, Gergana"] [Result "1/2-1/2"] [ECO "B27"] [WhiteElo "2421"] [BlackElo "2257"] [Annotator "TA"] [PlyCount "98"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 18,98,28,28,42,42,31,32,52,14,24,11,22,21,17,20,14,16,17,0,3,6,25,0,0,0, 0,0,20,0,0,0,0,0,0,0,14,0,36,26,37,41,40,0,0,0,0,0,0,0,0,0,0,-41,-41,-41,-35, -34,-36,-59,-56,-162,-152,-215,-204,-270,-40,-40,-40,-40,-40,-40,-40,-40,-40, -40,-40,-40,0,0,0,-42,0]} 1. e4 c5 2. Nf3 g6 3. c4 Nc6 4. d4 cxd4 5. Nxd4 Nf6 6. Nc3 d6 7. Be2 Nxd4 8. Qxd4 Bg7 9. Bg5 O-O 10. Qd2 a5 {B36: Sicilian: Maroczy Bind: Gurgenidze System.} 11. Rd1 Be6 12. O-O a4 {White is slightly better.} 13. Qe3 {aiming for e5.} Qa5 14. f4 {[#]} Rac8 $146 ({Predecessor:} 14... Rfc8 15. e5 Ng4 16. Bxg4 Bxg4 17. Nd5 Bxd1 18. Nxe7+ Kh8 19. Nxc8 Rxc8 20. Rxd1 dxe5 21. fxe5 Qxe5 22. Qxe5 Bxe5 {1/2-1/2 (43) Topel,Z (2106) -Calzetta Ruiz,M (2252) Reykjavik 2015}) 15. e5 dxe5 16. fxe5 Ng4 17. Bxg4 Bxg4 18. Rd4 Be6 $1 19. Nd5 Rxc4 20. Nxe7+ Kh8 {And now ...Rxd4 would win.} 21. Bf6 Bxf6 $1 22. exf6 {Intending Qh6! and mate.} Qh5 $1 23. Rxc4 Bxc4 24. Re1 Qh4 25. b3 axb3 26. axb3 Bb5 27. Qf2 Qxf2+ (27... Qb4 {is interesting.} 28. Qe3 Qh4 ) 28. Kxf2 $11 {[%mdl 4096] Endgame KRB-KRN} h6 29. Rc1 Kh7 30. h4 Rd8 31. Rc5 Rd2+ 32. Ke1 Re2+ 33. Kd1 Ba6 34. g4 $1 Re4 35. h5 (35. Rc8 $5 {[%CAl Rc8f8]} Be2+ 36. Kc2 Bxg4 37. Rg8 $11) 35... gxh5 36. gxh5 Rf4 37. Rf5 Rd4+ 38. Kc1 Be2 39. Kb2 {[#]} (39. Re5 $15 Bf3 40. Ng6) 39... Rh4 $1 $19 40. Rc5 (40. Rf2 $17 Bxh5 41. Nf5) 40... Rxh5 41. Rc8 {[#] and if Rf8 works, White does fine.} Rh2 $2 (41... Bg4 $1 $19 {[%CAl Rg4c8]} 42. Rb8 Rb5) 42. Rg8 $1 $15 Bf3+ 43. Kc3 Rg2 44. Rf8 Bh5 45. Kd4 Rf2 46. Ke5 Re2+ 47. Kf5 $1 Rf2+ 48. Ke5 Re2+ 49. Kf5 $1 Rf2+ {Weighted Error Value: White=0.13/Black=0.15} 1/2-1/2 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.28"] [White "Dardha, Daniel"] [Black "Villar Reymundo, Juan Antonio"] [Result "1-0"] [ECO "A16"] [WhiteElo "2487"] [BlackElo "2129"] [Annotator "TA"] [PlyCount "45"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 21,45,22,64,42,37,21,35,39,72,68,153,147,137,141,166,173,239,192,291, 288,311,317,314,275,508,495]} 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. g3 e5 5. Bg2 Ne7 6. Nf3 Nbc6 7. O-O g6 8. b4 Bg7 9. Rb1 a6 10. a4 O-O 11. d3 h6 12. b5 { A29: English Opening: Four Knights Variation with 4 g3.} axb5 13. axb5 Nd4 14. Nd2 {[#] White is slightly better.} Kh7 $146 ({Predecessor:} 14... Ra7 15. e3 Ne6 16. Nc4 b6 17. Ba3 f5 18. Qb3 Kh7 19. Ra1 Rxa3 20. Qxa3 Nc5 21. Nxe5 Bxe5 { 1-0 (30) Pantsulaia,L (2607)-Paragua,M (2492) Subic Bay 2016}) 15. Nc4 g5 ( 15... Ne6 $14) 16. e3 $16 Ne6 17. Ba3 f5 18. b6 cxb6 (18... c5 $142 19. Bb2 Ra6 ) 19. Qb3 Re8 (19... Nc7 {is a better defense.} 20. Nxb6 Be6) 20. Nd6 $18 ({ But not} 20. Nxb6 Rb8 $18) 20... Nc6 {intending ...Bf8.} 21. Nxe8 Qxe8 22. Nd5 Qd8 $2 {[#]} (22... b5 23. g4 fxg4 24. Be4+ Kh8) 23. Nxb6 {White took control after the opening. Weighted Error Value: White=0.07/Black=0.57} 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.29"] [White "Exposito Amaro, Josue"] [Black "Catarineu Morales, Alex"] [Result "1-0"] [ECO "B50"] [WhiteElo "2334"] [BlackElo "1992"] [Annotator "TA"] [PlyCount "51"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 9,51,0,16,17,22,27,18,10,52,-13,-14,-12,7,0,4,-1,11,-29,-34,-54,-70,-83, -75,-91,-85,-79,0,0,0,0,83,56,79,96,83,70,130,67,64,65,106,79,654,683]} 1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Bc4 Nxe4 5. Qa4+ Nd7 6. Bxf7+ $1 {B50: Sicilian: 2... d6, Miscellaneous.} Kxf7 7. Qxe4 Nf6 8. Qe2 {The position is equal.} e5 9. Qc4+ (9. d4 $14) 9... Ke8 $1 $11 {[#]} 10. d4 $146 ({Much worse is} 10. Ng5 Qc7 $17) ({Predecessor:} 10. O-O h6 11. Re1 a6 12. d4 b5 13. Qd3 e4 14. Rxe4+ Be7 15. Re1 Bb7 16. Nh4 {1-0 (25) Ossa Ramirez,J (1695)-Carranza,M (1618) Palmira 2017} ) 10... cxd4 11. O-O ({Don't play} 11. Ng5 d5 $17) 11... Be7 12. Re1 ({Of course not} 12. Ng5 d5 $17) 12... Bf5 13. Bg5 d3 14. Nbd2 Qd7 15. Nh4 Rc8 $1 { [%CAl Rc8c4]} 16. Qb3 Be6 17. c4 {[#]} Nh5 ({Better is} 17... b5 $1 $17 { [%CAl Rb5c4][%mdl 512]} 18. Qxd3 (18. Qxb5 Qxb5) 18... bxc4) 18. Bxe7 Qxe7 19. g3 $1 g5 (19... Rf8 $11 {remains equal.}) 20. Ng2 {[%mdl 1024] White has strong compensation.} Bf5 21. Ne3 Bg6 22. Nd5 $36 {[%mdl 2048] White has some pressure.} Qf7 ({Black should play} 22... Qd7 $14) 23. Ne4 (23. Qa3 $16 Rd8 24. Qxa7) 23... Bxe4 $14 24. Rxe4 b6 25. Re3 Nf6 $2 {[%mdl 8192]} (25... Rf8 $16) 26. Rf3 {Weighted Error Value: White=0.15/Black=0.49} 1-0 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.30"] [White "Perez Bolanos, Joel"] [Black "Garcia Gimenez, Santiago"] [Result "0-1"] [ECO "C88"] [WhiteElo "2058"] [BlackElo "2300"] [Annotator "TA"] [PlyCount "70"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 14,70,16,10,36,9,16,-27,-17,-18,0,17,121,-15,0,-28,-10,-57,-54,-168, -177,-168,-157,-161,-170,-171,-89,-118,-131,-135,-119,-140,-90,-301,-297,-298, -283,-731,-740,-886,-868,-5952,-5952,-5943,-5943,-5665,-5608,-1709,-4882,-2610, -2610,-2610,-2317,-12841,-1417,-29982,-902,-6389,-5616]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. a4 {White wants to play axb5.} Bd7 {[#] is cutting edge theory. C90: Closed Ruy Lopez with 7...d6: Early deviations.} 9. h3 $146 ({Predecessor:} 9. Nc3 Na5 10. Ba2 b4 11. Nd5 c5 12. c3 bxc3 13. bxc3 O-O 14. d4 cxd4 15. cxd4 Nc6 16. dxe5 Nxd5 17. Bxd5 dxe5 { 1/2-1/2 (72) Dominguez Perez,L (2758)-Kamsky,G (2665) Chess.com INT 2020}) 9... Na5 10. Bd5 Nxd5 {Black has an edge.} 11. exd5 O-O 12. d4 exd4 (12... f6 $11) 13. Nxd4 ({Only move:} 13. axb5 $16 Nc4 14. Qe2 (14. Rxa6 Bf6 $16) (14. Qxd4 Bxb5 15. Qd1 Bf6 $14)) 13... b4 14. Bd2 Rb8 15. c3 Bf6 16. cxb4 (16. Nf3 $15) 16... Bxd4 $19 17. bxa5 Qf6 18. Be3 Bxb2 ({Don't take} 18... Bxe3 19. Rxe3 Rxb2 20. Rf3 $15) 19. Ra2 Rfe8 (19... Bf5 $19 {And now ...Bxb1 would win.} 20. Qe2 h6) 20. Nd2 Bc3 21. Qe2 Qg6 {...Bxh3 is the strong threat.} 22. Kh2 Bf5 $40 { [%mdl 128] Black wants a kill.} 23. Qxa6 $2 {[#] White does not recover from this.} (23. Rc1 $17 {was called for.} Bd3 24. Qg4 Qxg4 25. hxg4 Bxa5 26. Ra3) 23... Be4 $1 {[%mdl 512]} 24. Nxe4 Bxe1 25. Nd2 $2 {[#]} (25. Re2 Qxe4 { [%mdl 64] Double Attack} 26. Rxe1 Qe5+ 27. Kg1 Qxd5 28. Rc1) 25... Rxe3 $1 { [%mdl 576] Deflection} 26. fxe3 Qg3+ {[%mdl 64] Double Attack} 27. Kg1 Bxd2 28. Rxd2 {[%mdl 4096] Endgame KQR-KQR} Rb1+ 29. Qf1 Qxe3+ {[%mdl 64] Double Attack} 30. Rf2 Rxf1+ 31. Kxf1 Qc1+ 32. Ke2 Qc2+ 33. Kf3 Qxa4 34. Rb2 g6 (34... Qa3+ $142 35. Ke4 Qxb2 36. g4 Qe5+ 37. Kd3 Qxd5+ {[%mdl 64] Double Attack} 38. Kc2 Qa2+ 39. Kd3 c5 40. a6 Qxa6+ 41. Kc3 Qb5 42. h4 c4 43. g5 Qb3+ 44. Kd2 Qd3+ 45. Ke1 c3 46. Kf2 c2 47. g6 fxg6 48. Kg2 c1=Q 49. Kh2 Qcd2+ 50. Kh1 Qf1#) 35. Rb7 Qxa5 {Weighted Error Value: White=1.62/Black=0.64} 0-1 [Event "VII Sunway Sitges Open 2020"] [Site "Sitges"] [Date "2020.12.17"] [Round "5.31"] [White "Mayrhuber, Nikola"] [Black "Gardner, Leo"] [Result "1-0"] [ECO "A48"] [WhiteElo "1998"] [BlackElo "1533"] [Annotator "TA"] [PlyCount "49"] [EventDate "2020.12.13"] [EventType "swiss"] [EventCountry "ESP"] [Tiebreak "Cut2 Buchholz+Median1 Buchholz"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,49,13,35,31,41,29,32,22,62,44,66,61,62,62,118,55,201,200,223,93,242, 235,601,580,667,670,621,534,529,525,595,589,626,559]} 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 O-O 5. c3 d6 6. e4 h6 7. Bh4 Nbd7 8. Bc4 Qe8 9. O-O e5 10. Re1 {A48:1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems.} Kh8 11. dxe5 dxe5 { [#]} 12. Bb5 $146 {White is slightly better.} ({Predecessor:} 12. Qc2 Nh5 13. Nf1 Nb6 14. Bb3 a5 15. a4 Nf4 16. Ne3 Be6 17. Nd5 Nbxd5 18. exd5 Bf5 {1-0 (34) Sosna,J (2413)-Rehorek,M (2342) Czechia 2009}) 12... c6 13. Bf1 Nb6 14. a4 a5 15. Qb3 Nbd7 (15... Nfd7 $14) 16. Rad1 ({Better is} 16. Qa3 $16) 16... Nc5 {[#] } (16... g5 $14) 17. Qa3 $1 $18 {[%CAl Ra3c5]} b6 18. h3 (18. Nc4 $18 {is the precise move to win.} Ncd7 19. Qd6) 18... Nh5 (18... Nfd7 $16) 19. Nc4 b5 $2 ( 19... Nb7 20. Nxb6 Rb8) 20. Nd6 {White is clearly winning.} Qe6 21. Qxc5 g5 22. Bg3 Nxg3 23. fxg3 g4 24. Nh4 gxh3 25. gxh3 {Weighted Error Value: White=0.23/ Black=0.74} 1-0