[Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.12"] [Round "1"] [White "Chigaev, Maksim"] [Black "Saduakassova, Dinara"] [Result "1-0"] [ECO "C50"] [WhiteElo "2604"] [BlackElo "2472"] [Annotator "TA"] [PlyCount "113"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 16,113,1,0,0,0,0,0,17,0,0,0,0,0,13,0,5,-16,0,-29,-41,-24,-9,-12,8,14,8,-6,0,-28,-18,-52,-29,-74,-50,-58,-45,-38,-37,-40,-44,-38,0,-30,0,0,0,0,0,0,12,0,60,63,214,205,219,208,208,218,391,202,419,411,366,281,356,248,213,236,445,433,479,487,799,792,743,693,716,697,2199,1984,29991,450,29994,1793,1381,1380,1266,945,923,869,956,971,880,880,718,636,804,787]} 1. e4 e5 2. Bc4 Nf6 3. d3 Nc6 4. Nf3 Bc5 5. Bb3 O-O 6. O-O h6 7. h3 d6 8. c3 a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} 9. a4 {LiveBook: 4 Games} (9. Nbd2 Be6 10. Ba4 Qb8 11. Bb5 Qa7 12. a4 Ne7 13. Bc4 Bd7 14. Nb3 Bb6 15. Qc2 c6 16. d4 {1-0 (83) Savchenko,B (2566)-Svidler,P (2765) Riadh 2017}) 9... Be6 10. Nbd2 Qb8 $146 {The position is equal.} ({Predecessor:} 10... Re8 11. Nc4 d5 12. exd5 Bxd5 13. Ncxe5 Nxe5 14. Nxe5 Rxe5 15. d4 Bxb3 16. Qxb3 Bxd4 17. cxd4 {½-½ (96) Ileana,G (2205)-Georgescu,T (2470) Arad 2017}) 11. Nh4 Nh7 12. Nf5 Qd8 13. Ng3 Qh4 {aiming for ...Qxg3.} 14. Nf5 Qd8 15. Ne3 Nf6 16. Qf3 Ne7 17. Ndc4 Ng6 18. Bc2 Nh4 19. Qd1 Bxe3 20. Nxe3 d5 {[%cal Bd6d5,Bd5d4][%mdl 32]} 21. f3 c5 22. Qe1 Ng6 23. c4 d4 $1 {[%cal Rd4e3]} 24. Nf5 Nh5 25. g3 Qc7 26. Bd1 Nf6 27. h4 Kh7 28. Qd2 Ng8 29. Qh2 N6e7 30. g4 Ng6 31. Ng3 {[%cal Bf5g3,Bg3h5,Bh5f4][%mdl 32]} N8e7 32. Nh5 f6 33. b3 Ng8 ({Black should try} 33... Qd7 $11) 34. Ra2 N6e7 $2 (34... N8e7 $14) 35. f4 $1 $18 exf4 36. Nxf4 ({Resist} 36. Bxf4 $6 Qd7 $16) (36. Qxf4 Qe5 $14) 36... Qd7 37. g5 f5 $2 (37... Ng6 38. Nxg6 Kxg6 39. gxh6 Nxh6) 38. Bf3 (38. Rg2 $142) 38... Kh8 $2 (38... fxe4 {keeps fighting.} 39. dxe4 (39. Bxe4+ Bf5 $16) 39... Nc6) 39. Rg2 fxe4 40. Bxe4 Bf5 41. Bf3 ({Weaker is} 41. gxh6 Nxh6 42. Qg3 Rg8 $18) 41... Ra6 42. Qg3 Ng6 $2 (42... Rf7 {is a better defense.} 43. Bd2 Bh7) 43. Nxg6+ Bxg6 44. gxh6 Rf7 (44... gxh6 $142 45. Bf4 Rxf4) 45. hxg7+ Rxg7 46. Bg4 Qe8 47. Bf4 Re7 {[#]} 48. h5 $1 {[%mdl 512]} Bh7 {[#]} (48... Bxh5 49. Bxh5) 49. Bd6 (49. Be5+ $142 $1 {[%mdl 512]} Nf6 (49... Rxe5 50. Be6) 50. Bh3 Bg6 51. Bxf6+ Rxf6 52. Rxf6 Re1+ 53. Kh2 Re2 54. Rxg6) 49... Re3 {[#]} (49... Rxd6 $18 50. Qxd6 Bxd3) 50. Bf3 (50. Be6 $142 $1 {[%mdl 512]} Bg6 (50... Rxe6 51. Qg7#) 51. hxg6 Kg7 52. Be5+ Rxe5 {[%mdl 64] Remove Defender} 53. Qxe5+ {[%mdl 64] Double Attack} Nf6 54. Qxf6+ Kh6 55. Rh2#) 50... Qf7 {White is clearly winning.} 51. Bxc5 Rxd3 52. Bd5 {Threatening mate with Bxd4+!} Qxf1+ 53. Kxf1 {[%csl Gg2][%cal Rg3g7]} Rf6+ 54. Ke1 {[%csl Gg2][%cal Rg3g7]} Rxg3 55. Rxg3 Rf4 56. Bxb7 Nf6 57. Rf3 {Accuracy: White = 62%, Black = 36%.} 1-0 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.14"] [Round "3"] [White "Chigaev, Maksim"] [Black "Kovalev, Vladislav"] [Result "1/2-1/2"] [ECO "C54"] [WhiteElo "2604"] [BlackElo "2687"] [Annotator "TA"] [PlyCount "40"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 20,40,0,0,8,-6,14,12,14,14,14,9,12,8,17,0,12,0,15,0,12,0,21]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 a6 6. Bb3 Ba7 7. h3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (7. Nbd2 O-O 8. h3 Re8 9. O-O d6 10. Re1 Be6 11. Bc2 h6 12. Nf1 d5 13. Ng3 dxe4 14. dxe4 Qxd1 15. Rxd1 Rad8 16. Re1 Nd7 17. Nf5 Bc5 18. Be3 Bxe3 19. Nxe3 Nb6 {½-½ (32) Miton,K (2584)-Ivanchuk,V (2726) Riadh 2017}) 7... h6 8. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3,Bg3f5][%mdl 32]} d6 9. Nf1 Be6 10. Ng3 Qd7 11. Qe2 {LiveBook: 12 Games. The position is equal.} Bxb3 12. axb3 Ne7 $146 ({Predecessor:} 12... Qe6 13. b4 Ne7 14. Be3 Bxe3 15. Qxe3 O-O 16. O-O {0-1 (50) Horton,J (2064)-Rindlisbacher,J (2217) Pune 2014}) 13. O-O Ng6 14. Nf5 O-O 15. Nh2 Qe6 16. b4 Ne7 17. Ng3 Ng6 18. Nf5 Ne7 19. Ng3 Ng6 20. Nf5 Ne7 1/2-1/2 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.16"] [Round "5"] [White "Chigaev, Maksim"] [Black "Keymer, Vincent"] [Result "1/2-1/2"] [ECO "B90"] [WhiteElo "2604"] [BlackElo "2500"] [Annotator "TA"] [PlyCount "61"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,61,15,16,0,0,-10,0,0,0,-23,0,-15,-9,-14,-8,-18,0,0,8,0,0,0,25,0,0,9,9,3,12,-20,-24,-18,-17,-17,-21,-16,-5,-6,-12,-8,-5,-5,-5,-12]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nf3 Be7 8. Bc4 Be6 9. Bb3 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} Nbd7 10. O-O Rc8 {LiveBook: 3 Games} 11. Bg5 O-O 12. Bxf6 $146 ({Predecessor:} 12. Re1 Nb6 13. Qd2 Qc7 14. Rad1 Rfd8 15. h3 Nc4 16. Bxc4 Qxc4 {½-½ (25) Ernst,T (2455)-Brustman,A (2295) Osterskars 1995}) 12... Nxf6 13. Qe2 b5 14. Rfd1 Rc5 15. Ne1 Qb6 16. Kh1 a5 {[%cal Ba6a5,Ba5a4][%mdl 32]} 17. f3 a4 18. Bxe6 fxe6 19. a3 Rc4 20. Nd3 Rfc8 21. Rab1 Qb8 22. Rd2 Bd8 {[%cal Be7d8,Bd8b6,Bb6d4][%mdl 32]} 23. Nd1 Bb6 24. c3 d5 {[%cal Rd5e4]} 25. N1f2 $1 d4 {The position is equal.} 26. cxd4 $1 Bxd4 27. Rbd1 Qb6 28. Nb4 Nd7 29. Nfd3 Nc5 30. Nxc5 Qxc5 31. g3 {Accuracy: White = 50%, Black = 71%.} 1/2-1/2 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.19"] [Round "7"] [White "Chigaev, Maksim"] [Black "Paehtz, Elisabeth"] [Result "1-0"] [ECO "B90"] [WhiteElo "2604"] [BlackElo "2477"] [Annotator "TA RC"] [PlyCount "101"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 17,101,41,43,47,35,36,85,66,63,24,22,22,27,27,27,29,39,40,40,8,25,17,28,31,24,21,26,14,14,15,19,22,34,34,28,14,99,99,99,99,99,99,99,99,99,99,99,99,99,99,99,31,99,99,99,99,113,99,104,111,114,111,111,111,111,111,118,114,118,118,139,139,139,139,139,139,99,99,1730,976,6370,6087,5512,5405,1466,877]} 1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. Nc3 cxd4 5. Nxd4 a6 6. h3 g6 7. g4 Bg7 8. Bg2 h5 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (8... O-O 9. Be3 Nc6 10. Qd2 Bd7 11. O-O-O Rc8 12. Nde2 b5 13. Nd5 a5 14. Bb6 Qe8 15. Kb1 Rb8 16. Be3 {½-½ (33) Radjabov,T (2738)-Smirin,I (2655) Baku 2015}) 9. g5 Nfd7 {LiveBook: 14 Games} 10. Nde2 Nc6 {White is slightly better.} 11. f4 Nb6 $146 ({Predecessor:} 11... O-O 12. Be3 Rb8 13. O-O Nc5 14. Qe1 f6 {½-½ (46) Blaich,G-Geyer,B Eppingen 1988}) 12. O-O e6 13. e5 (13. a4 {keeps more tension.} d5 14. a5 Nc4 15. exd5 exd5 16. Nxd5 O-O 17. c3) 13... dxe5 14. Bxc6+ bxc6 15. Qxd8+ Kxd8 16. fxe5 Bxe5 17. Rxf7 {Threatens to win with Bf4.} Ke8 18. Rf2 Nd5 19. Bd2 Rf8 20. Rxf8+ Kxf8 21. Na4 Rb8 22. c4 Nb6 23. Rf1+ Kg7 24. Nxb6 Rxb6 25. b3 Rb7 26. h4 Rf7 (26... Bb8 $11 {keeps the balance.}) 27. Bc3 $16 Bxc3 28. Nxc3 Rxf1+ 29. Kxf1 {[%mdl 4096] Endgame KB-KN} Kf7 30. Ne4 Ke7 31. Ke2 e5 32. b4 Bg4+ 33. Kd3 Bf5 34. a3 (34. a4 $16) 34... Bc8 (34... c5 $1 $14) 35. Nc5 Kd6 36. Ke3 Kc7 37. Ne4 Bh3 38. Nd2 Kd6 39. Kd3 Bg4 40. Ne4+ Kc7 41. Nc5 Bc8 42. a4 {[%cal Ba3a4,Ba4b5][%mdl 32]} Kd6 43. Kc3 Kc7 44. b5 cxb5 45. cxb5 axb5 46. axb5 Bf5 47. Kc4 {[#] Strongly threatening Kd5.} Kb6 $2 {[%mdl 8192]} (47... Kd6 $16) 48. Na4+ {White is clearly winning.} Ka5 49. Nc3 e4 50. Kd4 Kb6 51. Nxe4 {Precision: White = 79%, Black = 47%.} 1-0 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.22"] [Round "9"] [White "Chigaev, Maksim"] [Black "Esipenko, Andrey"] [Result "1/2-1/2"] [ECO "C50"] [WhiteElo "2604"] [BlackElo "2584"] [Annotator "TA"] [PlyCount "73"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,73,6,24,6,9,17,25,25,27,25,17,21,17,26,26,23,91,74,72,75,85,82,90,18,23,17,67,17,15,19,22,11,51,50,50,50,50,50,50,52,55,55,54,54,53,58,57,41,51,47,38,28,34,22,61,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 a6 7. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} Ba7 8. Re1 h6 9. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3,Be3f5][%mdl 32]} O-O 10. h3 Re8 {LiveBook: 58 Games} 11. Qb3 Qe7 12. a5 Nd8 $146 ({Predecessor:} 12... Rb8 13. Nf1 Be6 14. Be3 Bxc4 15. Qxc4 Qd7 {1-0 (81) Fedoseev,V (2703)-Negi,P (2670) Khanty-Mansiysk 2017}) 13. Nf1 Be6 14. Be3 Bxc4 15. Qxc4 Bxe3 16. Nxe3 Ne6 17. d4 Ng5 (17... exd4 $11 {keeps the balance.} 18. cxd4 Nh5) 18. Nxg5 $16 hxg5 19. dxe5 dxe5 20. Nf5 Qd7 21. Qe2 (21. Red1 $16 Qe6 22. Qxe6 (22. Qxc7 Nxe4 23. Ne3 Rab8 $14) 22... fxe6 23. Ne3) 21... Rad8 $11 22. Rad1 Qe6 23. Qe3 Rxd1 24. Rxd1 g6 25. Ng3 Nh7 26. Qc5 Qe7 27. Qxe7 Rxe7 $14 {[%mdl 4096] Endgame KRN-KRN} 28. Rd8+ Kg7 29. Nf1 Nf8 30. Rb8 c6 $1 31. Ne3 f6 32. Nc4 Rd7 $1 33. g3 Ne6 34. f3 Nc5 35. b4 Ne6 36. Nb6 Rc7 37. Rc8 {Precision: White = 71%, Black = 55%.} (37. Kf2 $14) 1/2-1/2 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.25"] [Round "11"] [White "Chigaev, Maksim"] [Black "Korobov, Anton"] [Result "1/2-1/2"] [ECO "B90"] [WhiteElo "2604"] [BlackElo "2699"] [Annotator "TA"] [PlyCount "50"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,50,46,39,52,47,32,26,47,32,46,13,37,25,46,0,19,18,19,0,0,0,0,5,80,74,89,0,0,0,0,0,0,0,0,0,0,0,0,0,8]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Nbd7 7. f3 h5 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} 8. Qd2 e6 9. Bc4 (9. a4 b6 10. Bc4 Qc7 11. Bxe6 fxe6 12. Nxe6 Qc4 13. Nxf8 Rxf8 14. Qxd6 Kf7 15. O-O-O {1-0 (28) Morozevich,A (2665)-Fedoseev,V (2724) Moscow 2018}) 9... Ne5 {White has an edge.} 10. Bb3 b5 11. a4 b4 12. Na2 a5 $146 ({Predecessor:} 12... d5 13. exd5 Nxd5 14. Bg5 f6 15. Bh4 {1-0 (37) Smeets,J (2550)-Bosboom,M (2402) Netherlands 2006}) 13. c3 d5 14. exd5 Nxd5 15. Bxd5 Qxd5 16. Nb5 $1 {[%cal Rb5c7]} Qxd2+ $1 17. Bxd2 {Strongly threatening Nc7+.} Ba6 (17... Kd7 $11 {remains equal.}) 18. Nc7+ $16 {[%mdl 64] [#] Double Attack} Kd7 19. Nxa6 (19. Nxa8 $16 {aiming for Be3.} Nd3+ 20. Kd1) 19... Rxa6 $11 {The position is equal.} 20. cxb4 axb4 21. b3 Bd6 22. Rd1 Ke7 23. Bxb4 Bxb4+ 24. Nxb4 Rb6 25. Nd3 Nxd3+ {Accuracy: White = 49%, Black = 68%.} 1/2-1/2 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.26"] [Round "12"] [White "Chigaev, Maksim"] [Black "Van Foreest, Lucas"] [Result "1/2-1/2"] [ECO "E32"] [WhiteElo "2604"] [BlackElo "2502"] [Annotator "TA"] [PlyCount "78"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,78,0,0,0,0,0,61,31,38,11,6,15,30,20,33,29,80,38,88,86,79,46,65,50,155,62,50,14,49,50,44,72,70,0,0,0,0,0,-1,-4,-5,-4,-5,-8,-8,-8,-8,-8,-8,-8,-8,-47,-21,-25,-33,-77,-45,-54,-8,-8,0,0,0,0,0,-8,-6]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. e4 d5 6. e5 Ne4 7. Bd3 c5 8. Nf3 {0-0 is the strong threat. E32: Nimzo-Indian: Classical (4 Qc2): 4...0-0} cxd4 9. Nxd4 Qh4 ({Better is} 9... Nd7 $11) (9... Nd7 10. Bf4 Qh4 11. g3 Qh5 12. O-O g5 13. cxd5 Bxc3 14. bxc3 exd5 15. Bxe4 dxe4 {½-½ (30) So,W (2786)-Nakamura,H (2787) Saint Louis 2018}) 10. Nf3 $146 {White is slightly better.} ({Predecessor:} 10. O-O Bxc3 11. bxc3 Nc5 12. Nf3 Qh5 13. Be2 dxc4 14. Ng5 Qg6 15. Qxg6 hxg6 {1-0 (44) Vernay,C (2462)-Vanheirzeele,D (2143) Mulhouse 2011}) 10... Qh5 11. cxd5 exd5 12. O-O Nxc3 13. bxc3 Be7 14. Nd4 Qxe5 (14... Nc6 $11 {remains equal.}) 15. Bxh7+ $16 Kh8 16. Bd3 Nc6 17. Be3 Bd6 {[%csl Gd6][%cal Re5h2]} 18. g3 $1 Bh3 {[#]} (18... Qh5 $14) 19. Rfe1 (19. Rfb1 $1 $16) 19... Qh5 $1 $14 20. Nxc6 Qf3 {[%csl Gh3][%cal Rf3g2]} 21. Bf1 Bxf1 22. Rxf1 bxc6 23. Rad1 ({White should try} 23. c4 $14) 23... f5 $1 $11 24. Rfe1 Rae8 25. Qe2 Qxe2 26. Rxe2 f4 27. gxf4 Bxf4 28. Rde1 Bxe3 29. Rxe3 Rxe3 30. fxe3 {[%mdl 4096] Endgame KR-KR} Re8 31. c4 dxc4 32. e4 Rd8 33. Kf2 Rd2+ 34. Ke3 Rxh2 (34... Rd3+ {feels hotter.} 35. Ke2 Rh3 36. Kd2 g6 37. a4 Kg7) 35. Kd4 Kg8 36. Rc1 {The position is equal.} Rxa2 {White must now prevent ...Ra4.} 37. Rxc4 Ra6 38. Ke5 Kf7 {Threatening ...Ke7.} 39. Kd6 {[#]} c5+ $1 {Precision: White = 55%, Black = 49%.} 1/2-1/2