[Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.13"] [Round "2"] [White "Korobov, Anton"] [Black "Gledura, Benjamin"] [Result "1/2-1/2"] [ECO "D85"] [WhiteElo "2699"] [BlackElo "2615"] [Annotator "TA"] [PlyCount "67"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 19,67,-16,0,-26,-13,-14,-30,-50,-41,-34,0,-2,-3,-6,0,-5,-7,-3,-7,-6,-7,-6,-7,-7,-6,-7,-3,-4,0,-4,0,0,0,-8,-8,-8,0,-5,0,-8,0,-10,-16,-12,0,0,0,0,0,-2]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. Bd2 Bg7 6. e4 Nxc3 7. Bxc3 O-O 8. Qd2 Nc6 {[%cal Bb8c6,Bc6e5,Be5g4][%mdl 32] D85: Exchange Grünfeld: Unusual White 7th moves and lines with 7 Nf3} (8... c5 9. d5 Bxc3 10. bxc3 Qd6 11. f4 e6 12. Bc4 b5 13. Bxb5 exd5 14. Bc4 Bb7 15. Nf3 Rd8 16. Bxd5 Bxd5 17. Qxd5 Qxd5 18. exd5 Rxd5 {½-½ (29) Tomashevsky,E (2702)-Nepomniachtchi,I (2768) Satka 2018}) 9. d5 Ne5 10. f4 Ng4 {LiveBook: 5 Games} 11. Nf3 Bxc3 $146 ({Predecessor:} 11... e6 12. Bxg7 Kxg7 13. O-O-O exd5 14. exd5 Re8 15. Bc4 Bf5 16. Rhe1 Rxe1 17. Rxe1 {1-0 (44) Akobian,V (2625)-Yang,K (2392) Atlantic City 2016}) 12. bxc3 e6 13. c4 exd5 14. cxd5 Nf6 15. Bd3 {The position is equal.} Qe7 16. O-O Nxe4 17. Bxe4 Qxe4 18. Rfe1 Qf5 19. Rac1 Qf6 20. Qd4 Qxd4+ 21. Nxd4 c6 22. dxc6 bxc6 23. Nxc6 Be6 24. a4 Kg7 25. Nd4 Bd5 26. Rc7 Rfc8 27. Rd7 Rd8 28. Ree7 a6 29. g4 Rac8 30. Kf2 Rxd7 31. Rxd7 Bc6 32. Rd6 Bxa4 33. Rxa6 Bd7 34. h3 {Accuracy: White = 47%, Black = 60%.} 1/2-1/2 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.15"] [Round "4"] [White "Korobov, Anton"] [Black "Saduakassova, Dinara"] [Result "1/2-1/2"] [ECO "E56"] [WhiteElo "2699"] [BlackElo "2472"] [Annotator "TA"] [PlyCount "66"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 21,66,-6,-16,-8,-19,-4,-19,-42,-7,0,-14,-20,-18,-15,0,0,0,-10,-6,-7,-6,-13,0,-11,0,-48,-45,-71,-71,-73,-9,-8,-14,-14,-15,-22,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 {[%cal Bf8b4,Bb4a5,Ba5c7][%mdl 32]} 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O Nc6 8. a3 Ba5 9. Na4 dxc4 10. Bxc4 cxd4 11. exd4 h6 {LiveBook: 10 Games. E56: Nimzo-Indian: Rubinstein: Main Line: 7...Nc6} (11... Ne7 12. Qe2 Ng6 13. Nc3 Bxc3 14. bxc3 b6 15. Bb3 Bb7 16. h3 Rc8 17. Bd2 Ne4 18. Qe3 Nxd2 19. Nxd2 {0-1 (30) Khismatullin,D (2662)-Lastin,A (2617) Olginka 2011}) 12. Be3 Ne7 13. Rc1 $146 ({Predecessor:} 13. Nc5 Bc7 14. Rc1 b6 15. Na6 Bd6 16. Qe2 Bb7 17. Ne5 Rc8 18. f3 Ned5 19. Bd2 Ne7 20. Kh1 Nf5 21. Bc3 Nh5 22. Kg1 {0-1 (22) Burlov,V (2410)-Maiorov,N (2516) Moscow 2007}) 13... Bc7 14. Nc3 a6 15. Bd3 b6 16. Ne4 {[#] Nxf6+ is the strong threat.} Nfd5 17. Bd2 Nf5 18. Ng3 Nxg3 19. hxg3 Bb7 20. Re1 Nf6 21. Qe2 Qd7 22. Rc2 Rfd8 23. Be3 b5 24. Rc5 Ng4 25. Bh7+ Kf8 (25... Kh8 $17 26. Bc2 Bb6) 26. Ne5 $11 {The position is equal.} Nxe5 27. dxe5 Bb6 28. Qg4 g5 29. Qh5 Kg7 30. Bxg5 $1 hxg5 ({Stronger than} 30... Kxh7 31. Qxh6+ Kg8 {[#]} 32. Bf6 $1 {[%mdl 512]} Bxc5 33. Qh8#) 31. Qxg5+ Kxh7 32. Qh5+ Kg7 33. Qg5+ Kh7 {Precision: White = 63%, Black = 59%.} 1/2-1/2 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.18"] [Round "6"] [White "Korobov, Anton"] [Black "Bareev, Evgeny"] [Result "1/2-1/2"] [ECO "D19"] [WhiteElo "2699"] [BlackElo "2650"] [Annotator "TA"] [PlyCount "73"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 24,73,39,25,25,30,31,29,38,45,46,47,87,93,88,95,70,53,102,102,102,94,102,102,102,102,102,74,77,72,70,50,52,26,27,10,12,0,0,0,8,0,0,0,0,-7,-8,-7,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O 9. Qe2 Nbd7 10. e4 Bg6 11. Bd3 h6 12. Rd1 a6 {D19: Slav Defence: 5 a4 Bf5 6 e3: Main line with 9 Qe2} 13. Bf4 {LiveBook: 10 Games} Qe7 14. h3 Rac8 {White has an edge.} 15. Rac1 {[#]} c5 $146 ({Predecessor:} 15... Rfe8 16. Bb1 Bxc3 17. Rxc3 Qb4 18. Ra3 Red8 19. Rc1 a5 20. Rc4 {½-½ (121) Lautier,J (2632)-Piket,J (2633) Monte Carlo 2000}) 16. e5 {[#] aiming for Bxg6.} Bxd3 17. Qxd3 Bxc3 18. exf6 ({Much worse is} 18. bxc3 Nd5 $11) 18... Qxf6 {[#]} 19. Bd6 $1 $36 {[%cal Rd6f8][%mdl 2048] White is really pushing.} Bxb2 20. Rc2 Bxd4 {And now ...Rfd8 would win.} 21. Bxf8 Rxf8 22. Nxd4 {Nc6! is the strong threat.} cxd4 23. Qxd4 Qxd4 24. Rxd4 $14 {[%mdl 4096] Endgame KRR-KRN} Nf6 25. Rc7 {[%mdl 1024] White has strong compensation.} b6 26. Ra7 a5 27. Rb7 Nd5 28. f4 g6 29. g4 Kg7 {The position is equal.} 30. f5 {Black must now prevent fxe6.} Kf6 31. fxe6 fxe6 32. Kh2 Rc8 33. Rd3 Rc4 34. Rf3+ Ke5 35. Ra3 h5 36. gxh5 gxh5 37. Rg7 {Accuracy: White = 53%, Black = 76%.} 1/2-1/2 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.20"] [Round "8"] [White "Korobov, Anton"] [Black "Kovalev, Vladislav"] [Result "1/2-1/2"] [ECO "E94"] [WhiteElo "2699"] [BlackElo "2687"] [Annotator "TA"] [PlyCount "64"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 33,64,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O exd4 8. Nxd4 Re8 9. f3 c6 10. Kh1 Nh5 11. g4 Nf6 12. Bf4 h5 13. Nf5 {E94: King's Indian: Classical: 6 Be2 e5 7 0-0: Various Black 7th moves} gxf5 14. gxf5 d5 15. cxd5 cxd5 16. e5 Bxf5 17. exf6 Qxf6 {LiveBook: 3 Games. The position is equal.} 18. Nxd5 Qxb2 {[%mdl 64] [#] Double Attack} 19. Ne7+ {[%mdl 64] Decoy} Rxe7 20. Qd8+ Bf8 {[#]} (20... Kh7 21. Qxe7 {½-½ (43) Kasimdzhanov,R (2709)-Topalov,V (2771) Zug 2013}) 21. Rg1+ $146 Bg4 $1 (21... Bg6 $2 22. Bc4 $18) 22. fxg4 Nd7 $1 23. gxh5+ ({But not} 23. Qxa8 Rxe2 24. Qd8 (24. gxh5+ Kh7 $15) (24. Qxa7 $2 Qb4 $19) 24... Qb4 $17) 23... Kh8 24. Qxa8 Rxe2 25. Rae1 Rxe1 26. Rxe1 {[#] Hoping for Be5+!} Qf2 $1 {[%cal Rf2e1]} 27. Bg3 Qf3+ 28. Kg1 {aiming for Qe8.} Kh7 {( -> ...Bc5+)} 29. Rf1 Bc5+ 30. Bf2 Qg4+ 31. Kh1 Qe4+ 32. Kg1 Qg4+ 1/2-1/2 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.23"] [Round "10"] [White "Korobov, Anton"] [Black "L'Ami, Erwin"] [Result "1/2-1/2"] [ECO "D00"] [WhiteElo "2699"] [BlackElo "2643"] [Annotator "TA"] [PlyCount "135"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 13,135,-6,7,-12,-8,0,-9,-37,-17,-25,-21,-12,0,-15,0,-13,-8,-38,-38,-45,-38,-38,-38,-38,-38,-38,-38,-38,-38,-38,-38,-38,-38,-57,-57,-104,0,0,0,-11,0,-43,-43,-43,-43,-43,-43,-43,67,-50,-29,-50,-31,-22,0,-45,-8,-42,0,-485,-495,-485,-480,-620,-239,-232,-236,-209,-42,-478,-222,-224,-179,-203,0,0,0,0,0,0,0,-60,0,0,0,0,0,0,0,0,0,0,0,-54,-51,-52,-56,-29977,-29977,-29970,-29968,-29991,-4998,-2016,-1131,-966,0,0,-4,-12,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. Bf4 Nf6 3. Nd2 e6 4. e3 Bd6 5. Bg3 O-O 6. Bd3 b6 7. Ngf3 Ba6 {LiveBook: 10 Games. D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} 8. c4 c5 9. dxc5 bxc5 $146 ({Predecessor:} 9... Bxc5 10. a3 Bd6 11. Rc1 dxc4 12. Nxc4 Bxc4 13. Bxd6 Bxd3 14. Bxf8 Qxf8 15. Qxd3 {1-0 (15) Karlik,V (2348)-Mueller,M (2124) Stare Mesto 2004}) 10. a3 h6 11. O-O Bxg3 12. hxg3 Nbd7 13. Qc2 Qe7 14. Rfe1 e5 15. e4 ({Reject} 15. cxd5 Bxd3 16. Qxd3 e4 $17) (15. Bf1 {is more complex.} e4 16. Nh2 Bb7 17. cxd5 Bxd5 18. Bc4) 15... d4 16. b4 Bb7 17. b5 a5 18. a4 g6 19. Nb3 Kg7 20. Qd2 Qd8 21. Nh4 Re8 22. Re2 Qc7 23. f3 Nh5 24. Kf2 {[#]} Ndf6 ({Better is} 24... f5 $1 $17 {[%mdl 512]}) 25. Rh1 $11 Rh8 26. Ree1 Bc8 27. g4 Nf4 28. Bf1 Ne6 29. g3 Ng5 30. Bd3 Nd7 (30... Bb7 $15) 31. Nc1 (31. f4 $14 exf4 32. gxf4) 31... Nb6 {[%cal Bd7b6,Bb6a4,Ba4c3][%mdl 32]} 32. f4 Ne6 {[%cal Re5f4]} 33. Ne2 Nxa4 34. f5 $1 {[%cal Rf5e6]} Ng5 35. Nf4 $1 Nc3 (35... Bb7 {looks sharper.} 36. Nd5 Bxd5 37. exd5 Nc3 38. fxg6 fxg6 39. Bxg6 Raf8+) 36. Nfxg6 $2 {[%mdl 8192]} (36. Nd5 $11 Qd6 37. Bc2 Nxd5 38. exd5) 36... fxg6 $19 37. Nxg6 Bb7 38. Rxh6 Rxh6 $2 ({Not} 38... Kxh6 39. Rh1+ Kg7 40. Qxg5 $11) (38... Ngxe4+ 39. Rxe4 Rxh6 40. f6+ Kh7 41. Rxe5 Be4) 39. Qxg5 Kh7 {Strongly threatening ...Qg7.} 40. Qf6 Qg7 41. Qd6 $2 {[%mdl 8192]} (41. Qe6 $1 $15) 41... Rg8 (41... Re8 $142 42. Kg2 Kg8) 42. Kg2 {Threatens to win with g5.} Qf7 43. Qxc5 Rgxg6 $2 (43... Re8 $1 $19 {...Kg8 is the strong threat.} 44. Nxe5 Qg7) 44. fxg6+ $11 Qxg6 {And now ...Qg7 would win.} 45. Qxe5 {Hoping for g5.} Qxg4 46. c5 Qh3+ 47. Kf2 (47. Kf3 $1 $11 Rg6 48. c6) 47... Rg6 ({Much weaker is} 47... Qh2+ $6 48. Kf3 $11) (47... Re6 $1 $15 48. Qf5+ Qxf5+ 49. exf5 Rxe1 50. Kxe1 Bd5) 48. c6 Bc8 49. Qe7+ Kg8 50. Bc4+ Be6 51. Bxe6+ Rxe6 52. Qd8+ Kh7 53. e5 ({White should play} 53. Qd7+ $1 $11 Kg6 54. e5) 53... Qh2+ $15 54. Kf3 Rg6 {[%csl Gg6][%cal Rh2g3]} 55. Qd7+ $2 {[%mdl 8192]} (55. Qh4+ $15 Qxh4 56. gxh4 Nxb5 57. e6) 55... Kh6 {[%csl Gg6][%cal Rh2g3]} 56. g4 Qh3+ $1 57. Kf4 Nd5+ (57... Qg2 $142 58. Rh1+ Qxh1 59. g5+ Rxg5 60. Qe6+ Rg6 61. Qxg6+ Kxg6 62. e6 Qh2+ 63. Kf3 Kf5 64. e7 Ne2 65. e8=Q Ng1#) 58. Ke4 $19 {[#]} Qg2+ $1 59. Kxd4 {[#]} Qd2+ $2 ({Black should try} 59... Nb6 $1 $19 60. g5+ Rxg5 61. Qe6+ Rg6 62. Qxg6+ Kxg6) 60. Kc5 $11 {The position is equal.} Qxe1 61. Qxd5 a4 62. g5+ Rxg5 63. c7 Rxe5 {( -> ...Qc3+)} 64. c8=Q {White threatens Qh8+ and mate.} Rxd5+ 65. Kxd5 {Black must now prevent Qa6+.} Qd2+ 66. Kc6 Qc3+ 67. Kb7 Qxc8+ 68. Kxc8 {Precision: White = 55%, Black = 52%.} 1/2-1/2 [Event "81st Tata Steel Challengers 2019"] [Site "Wijk aan Zee"] [Date "2019.01.26"] [Round "12"] [White "Korobov, Anton"] [Black "Keymer, Vincent"] [Result "1-0"] [ECO "D35"] [WhiteElo "2699"] [BlackElo "2500"] [Annotator "TA"] [PlyCount "93"] [EventDate "2019.01.12"] [EventType "tourn"] [EventCountry "NED"] [SourceTitle "playchess.com"] [Source "ChessBase"] [SourceQuality "1"] {[%evp 12,93,29,0,15,22,31,0,0,0,0,0,0,0,0,7,8,0,0,0,0,-8,-7,-28,-12,-23,5,-17,0,0,0,0,4,0,0,0,0,-13,0,0,0,0,167,152,179,167,221,216,220,207,227,227,265,252,254,247,522,517,397,231,467,463,456,334,264,66,418,418,495,404,456,479,456,453,369,387,629,618,781,710,707,691,631,619]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 c5 7. a3 g6 {D35: Queen's Gambit Declined: Exchange Variation} 8. Nf3 Bg7 9. Be3 O-O {The position is equal.} 10. Be2 Nc6 11. O-O cxd4 12. cxd4 b6 13. h4 $146 ({Predecessor:} 13. Qa4 Bb7 14. Rad1 Ne7 15. Bd3 {1-0 (57) Caruana,F (2807)-Dominguez Perez,L (2739) Saint Louis 2017}) 13... Bb7 14. h5 gxh5 15. Rc1 Rc8 16. e5 Ne7 17. Rxc8 Qxc8 18. Bd3 Qc6 19. Qb1 Ng6 20. Rc1 Qd7 21. Ng5 Rd8 22. Be4 Bd5 23. Bxd5 exd5 24. f4 Qg4 25. Rc7 {[%mdl 64] [#] Double Attack} Rf8 26. e6 f6 $2 (26... fxe6 $11 27. Qc2 Qf5) 27. e7 $18 fxg5 28. exf8=Q+ Nxf8 (28... Bxf8 {was worth a try.} 29. Qb3 Ne7) 29. Qb3 (29. Rxa7 gxf4 30. Bf2 f3 $11) (29. fxg5 Bxd4 30. Qb3 Qe4 $16) 29... gxf4 30. Bf2 (30. Qxd5+ $6 Qe6 $16) 30... Qe6 31. Rxa7 h4 32. Rb7 Qe4 33. Qf3 (33. Qxb6 $6 f3 $16) (33. Rxb6 Bxd4 34. Bxd4 h3 $16) 33... h3 $2 (33... Bxd4 34. Qxe4 Bxf2+ 35. Kxf2 dxe4 36. Rxb6 e3+ 37. Kf3 Kf7 38. Kxf4 e2) 34. Qg4 {[%csl Gb7][%cal Rg4g7] [#]} Ng6 35. Rb8+ (35. Qxh3 $142 {Strongly threatening Qd7.} Ne7 36. Kh2) 35... Nf8 $2 (35... Kf7 36. Rb7+ (36. Rxb6 Bxd4 37. Rb7+ Kf6 $11) 36... Ne7 37. Qh5+ (37. gxh3 Bxd4 38. Bxd4 Qxd4+ 39. Kh2 Qb2+ 40. Qg2 Qe5 $11) 37... Kg8 38. Rb8+ (38. Qxh3 Bxd4 39. Qg4+ Kf8 $16) 38... Bf8 39. Qxh3 Qg6) 36. gxh3 h5 37. Qxh5 Bxd4 {( -> ...Qe1+)} 38. Qg5+ $2 $40 {[%mdl 128] White has some attack.} ({White should try} 38. Re8 $18 Bxf2+ 39. Kxf2 Qd4+ 40. Kg2) 38... Bg7 $4 {[%mdl 8192]} (38... Kf7 $14 39. Bxd4 Qxd4+ 40. Kh2 Qb2+ 41. Qg2 Qe5 42. Rb7+ (42. Rxb6 f3+ 43. Qg3 Qe2+ 44. Kh1 Qf1+ 45. Kh2 Qe2+ 46. Kh1 Qf1+ 47. Kh2 Qe2+ $11) 42... Ke8) 39. Rxb6 d4 40. Rb4 Ne6 41. Rb8+ Nf8 42. Rd8 Qb1+ 43. Kh2 Qc2 $2 (43... Qb2 44. Qxf4 Qe2) 44. Qxf4 {White is clearly winning.} d3 45. Kg2 Qc6+ 46. Qf3 Qg6+ 47. Kh1 {Accuracy: White = 55%, Black = 39%.} 1-0