[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.05"]
[Round "1.1"]
[White "Vachier-Lagrave, Maxime"]
[Black "Wei, Yi"]
[Result "1-0"]
[ECO "B91"]
[WhiteElo "2774"]
[BlackElo "2724"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,94,16,25,21,27,0,11,0,10,0,55,47,45,51,38,48,48,51,52,46,43,49,45,38,49,48,58,46,56,54,56,53,53,52,59,50,39,47,52,57,62,47,80,74,100,69,75,75,75,75,88,77,110,35,85,76,85,73,75,72,85,85,85,85,85,85,92,92,92,95,95,95,102,91,640,710,909,837,799,883,735,529,734,632,5181]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nb3 {B91: Sicilian Najdorf: 6 g3} (7. Nde2 Be7 8. Bg2 O-O 9. O-O b5 10. Nd5 Nxd5 11. Qxd5 Ra7 12. Be3 Rb7 13. Qd2 Nd7 14. Nc3 Nf6 15. Bg5 Be6 16. Bxf6 Bxf6 17. Nd5 Bg5 {½-½ (43) Vitiugov,N (2732)-Yu,Y (2763) Khanty-Mansiysk 2019}) 7... Be7 8. Bg5 Nbd7 9. a4 {The position is equal.} h6 $146 ({Predecessor:} 9... b6 10. Bg2 Bb7 11. O-O O-O 12. Qe2 h6 13. Bxf6 Nxf6 14. Rfd1 Qc7 {1-0 (44) Yankovsky,R (2302)-Solovchuk,M (2188) Dagomys 2009}) 10. Be3 b6 (10... O-O $11) 11. Bc4 $14 Bb7 12. Nd2 O-O 13. O-O Qc7 14. Qe2 Rfc8 15. Rad1 Nc5 {[%cal Rc5e4]} 16. Bxc5 Qxc5 17. Rfe1 g6 18. Bb3 Kg7 19. Qc4 Qxc4 20. Nxc4 Rc6 21. Nd5 Nxd5 22. exd5 Rc7 {[#]} 23. Nxe5 $1 {[%mdl 512]} dxe5 24. d6 {[%mdl 64] Double Attack} Rd7 {Strongly threatening ...Rad8.} 25. dxe7 Rxe7 26. Rd6 b5 27. a5 Rc8 28. c3 Bf3 29. Rxa6 Rd8 30. Rb6 Rd2 31. Rxb5 Rxb2 32. a6 ({Better is} 32. Ra1 $16) 32... Rc7 {[#]} 33. Bc4 $1 Rxb5 34. Bxb5 Rxc3 $16 {[%mdl 4096] Endgame KRB-KRB} 35. Bf1 Rc5 36. Ra1 Ba8 37. Be2 e4 38. Kf1 Kf6 39. Ke1 Ke5 40. Kd2 f5 41. Rb1 g5 42. Rb5 Kd4 $2 {[%mdl 8192] [#]} (42... Rxb5 $16 43. Bxb5 Kd6) 43. Rxc5 $1 $18 {White is clearly winning.} Kxc5 44. Ke3 Bc6 45. Bh5 Kd5 46. a7 Ke5 {Now ...f4+ and Black clings on.} 47. f4+ Kd5 {Accuracy: White = 86%, Black = 59%.} 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.06"]
[Round "1.2"]
[White "Nepomniachtchi, Ian"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "B35"]
[WhiteElo "2776"]
[BlackElo "2734"]
[Annotator "TA"]
[PlyCount "263"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,263,36,42,27,29,20,28,16,17,20,36,30,65,65,65,65,65,65,64,64,64,64,64,64,65,57,64,64,65,62,94,72,72,72,110,72,72,72,72,60,60,60,75,76,74,68,82,60,61,55,57,64,56,56,64,56,56,56,56,56,84,84,116,30,93,93,93,93,93,93,93,93,94,109,116,65,116,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,0,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,0,16,16,16,16,16,16,16,16,16,16,16,16,16,0,16,0,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,16,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15]} 1. e4 c5 2. Nf3 g6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 Qa5 8. O-O O-O 9. Bb3 d6 10. Nd5 {B35: Sicilian: Accelerated Dragon with 5 Nc3: main line} Qd8 (10... Re8 11. Nxf6+ Bxf6 12. c3 Bd7 13. f4 Nxd4 14. cxd4 e6 15. e5 Bg7 16. Qd2 Qa6 17. Rac1 Rac8 {0-1 (40) Grischuk,A (2750)-Vachier Lagrave,M (2795) chess.com INT 2017}) 11. f3 Nxd5 12. exd5 {White has an edge.} Nxd4 $146 ({Predecessor:} 12... Ne5 13. h3 Nd7 14. c3 Nf6 15. Ne2 Re8 16. Qd2 Qa5 17. Rad1 Bd7 {½-½ (46) Ramacker,Q (1912)-Slagter,M (1496) Blankenberge 2014}) 13. Bxd4 Bxd4+ 14. Qxd4 Qb6 15. Qxb6 axb6 16. Rfe1 Re8 17. Re4 Bd7 18. Rb4 b5 19. c3 Rac8 20. Kf2 Rc5 21. Rd1 Kg7 22. h4 h6 23. a3 Kf6 24. Re1 g5 25. Rd4 Rd8 26. Rh1 Bf5 27. g4 Bg6 28. f4 gxf4 29. Re1 Rd7 30. Rxf4+ Kg7 31. Re3 Rdc7 32. Ref3 {Threatens to win with h5.} f6 $1 33. g5 fxg5 34. hxg5 h5 $1 35. Re3 e5 36. dxe6 Rxg5 37. Rd4 Rf5+ 38. Ke2 {Strongly threatening Bc2.} Be8 39. Rxd6 {Hoping for e7.} Kf8 40. Rd4 (40. Rd8 $16) 40... Rg7 (40... Ke7 $1 $11) 41. Bd5 $1 $16 b6 42. Be4 $1 {[%cal Re4f5]} Re5 {[#]} 43. Rd6 $1 h4 44. Bf3 Rxe3+ 45. Kxe3 {[%mdl 4096] Endgame KRB-KRB} h3 46. Kf2 ({Reject} 46. Rxb6 $6 h2 $11) (46. Rd2 $16) 46... h2 (46... Rg5 $14) 47. e7+ Kxe7 48. Rh6 ({Stronger than} 48. Rxb6 {[#]} Rf7 $1 $17 {[%mdl 512]}) 48... Rf7 49. Rxh2 Bc6 50. Rh3 Bxf3 51. Rxf3 {KR-KR} Rh7 52. Ke3 Kd6 53. Rf6+ Kc7 54. Rf2 Kc6 55. Re2 Kc5 56. Kd3 Rh3+ 57. Kc2 Rh5 58. Rg2 Kc6 59. Kb3 Rh4 60. Rd2 Kc5 61. Rc2 Rh3 62. Rg2 Rh5 63. Rg8 Rh2 64. Rg1 Kc6 65. Rc1 Kc5 66. Rc2 (66. Rd1 $16) 66... Rh4 (66... Rh3 $1 $11) 67. Rf2 Kc6 68. Kc2 Rh3 69. Rf6+ Kb7 70. Rf7+ Kc6 71. Rf2 Kb7 72. Kb3 Rh4 73. Rd2 Kc6 74. Rd4 Rh2 75. a4 (75. Rg4 $16) 75... bxa4+ $11 {The position is equal.} 76. Rxa4 b5 77. Ra6+ Kb7 78. Rg6 Rf2 79. Rg4 Kb6 80. Ka3 $1 Rc2 81. Rg6+ Kb7 82. Rg3 Rh2 83. Rg4 Rc2 84. Rd4 Kc6 85. Rd3 Rh2 86. Kb3 Kc5 87. Rg3 Kb6 88. Rg6+ Kb7 89. Rg8 Rf2 90. Rg1 Kb6 91. Rc1 Kc5 92. Rc2 Rf4 93. Rd2 Rh4 94. Rd8 Rh2 95. Rb8 Rh4 96. Rd8 Rh2 97. Rc8+ Kb6 98. Rb8+ Kc6 99. Ka3 Rc2 100. Rh8 Kb6 101. Rh6+ Kb7 102. Rh3 Kb6 103. Rh6+ Kb7 104. Rh3 Kb6 105. Rd3 Rh2 106. Rd6+ Kc7 107. Rd4 Kb6 108. b3 Rh3 109. Kb4 {And now Rd6+ would win.} Rh6 110. Rg4 Rf6 111. Ka3 Rh6 112. Rg2 Rf6 113. Kb2 Rf3 114. Kc2 Rh3 115. Rg6+ Kc7 116. Re6 Rg3 117. Re4 Kc6 118. Kd2 Kd5 119. Re3 {Intending c4+ and mate.} Rg2+ 120. Kd3 Rb2 121. b4 Rh2 122. Rg3 Rh6 123. Rf3 Rg6 124. Rh3 Kc6 125. Rh4 Kb6 126. Rh8 Rd6+ 127. Kc2 Rc6 128. Rh5 Rc4 129. Kd3 Rc8 130. Rh6+ Kb7 131. Rd6 Rc7 132. Rd5 {Accuracy: White = 77%, Black = 80%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.06"]
[Round "1.2"]
[White "Grischuk, Alexander"]
[Black "Wojtaszek, Radoslaw"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2759"]
[BlackElo "2748"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,29,8,27,14,24,13,10,16,16,0,15,0,0,0,25,25,30,31,41,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 a6 7. Re1 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} O-O 8. h3 h6 9. b4 {The position is equal.} Ba7 10. a4 Ne7 11. Nbd2 Ng6 12. d4 exd4 13. cxd4 d5 14. exd5 Nxd5 15. b5 {[#]} (15. Ne4 $5 {[%cal Rc1h6]}) {Predecessor:} 15... axb5 $146 16. axb5 {0-1 (38) Fressinet,L (2676)-Inarkiev,E (2732) Germany 2017} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.06"]
[Round "1.2"]
[White "Yu, Yangyi"]
[Black "Jakovenko, Dmitry"]
[Result "1/2-1/2"]
[ECO "A34"]
[WhiteElo "2753"]
[BlackElo "2681"]
[Annotator "TA"]
[PlyCount "145"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,145,28,21,17,15,8,10,10,8,15,32,40,30,27,18,27,33,44,88,84,79,75,95,91,89,102,84,90,154,154,148,138,152,146,149,137,193,193,189,181,172,153,127,60,198,159,333,318,406,376,417,267,243,252,254,247,218,202,208,206,185,160,158,150,1143,1219,961,903,1302,1306,1501,1335,6341,5500,6095,2719,29953,29954,29955,29959,29951,29956,5079,75,82,8,8,8,29973,29972,29972,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,0,8,8,8,0,0,0]} 1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. e4 Nc6 5. Be2 d5 6. exd5 exd5 7. d4 cxd4 8. Nxd4 {A34: Symmetrical English: 2 Nc3, lines with ...d5} dxc4 9. Be3 Nxd4 10. Bxd4 Be6 11. O-O Be7 12. Qa4+ Qd7 13. Qxd7+ Nxd7 14. Bxg7 Rg8 15. Bd4 {[#]} Bc5 $146 ({Predecessor:} 15... O-O-O 16. Rac1 Bc5 17. Rfd1 {½-½ (17) Zhigalko,S (2640)-Movsesian,S (2723) Khanty-Mansiysk 2010}) 16. Bxc5 Nxc5 17. Rfd1 Rd8 18. Rxd8+ Kxd8 19. Rd1+ Kc8 20. f4 a6 {[#]} (20... f5 $142) 21. f5 $1 $16 {[%cal Rf5e6][%mdl 512]} Bd7 (21... Bxf5 22. Rd5) 22. Bxc4 Bc6 23. Bd5 ({And not} 23. Bxf7 Rxg2+ 24. Kf1 Rxb2 $15) 23... Kc7 24. Bxc6 Kxc6 {[%mdl 4096] Endgame KRN-KRN} (24... bxc6 $16 25. Re1 Rd8) 25. b4 $18 Nd7 26. Ne4 $1 Ne5 27. Rd6+ Kc7 28. Rd5 (28. h3 $16) 28... Nc6 (28... Nf3+ $1 $14 29. Kf2 Nxh2) 29. a3 $1 Rg4 $2 (29... Rd8 $16 30. Rxd8 Kxd8) 30. Nf6 Rd4 31. Rxd4 Nxd4 32. Nxh7 Nxf5 {KN-KN} 33. Ng5 $1 Nd6 34. Kf2 Kd7 35. Ke3 Nc4+ 36. Kd3 $1 {[%cal Rd3c4]} Nxa3 37. Nxf7 Nb5 38. h4 b6 $2 (38... Ke7 $16) 39. Ne5+ $1 Ke6 40. Nc4 Kf5 41. h5 Kg5 42. g4 $1 Na7 43. Nxb6 Nc6 {[#]} 44. Nd5 $1 Ne5+ 45. Kd4 Nxg4 46. Nc7 Nf6 47. Nxa6 Nd7 48. Nc5 $2 (48. b5 $18 Kxh5 49. Kd5) 48... Nb6 $16 {[#]} 49. Ne4+ (49. Nd3 $1 $16 {Black must now prevent b5.} Kxh5 50. Kc5 Na4+ 51. Kb5 Nc3+ 52. Kc4) 49... Kxh5 $11 50. Kc5 Nd7+ $2 {[%mdl 8192]} (50... Na4+ $11 51. Kd4 Kg6) 51. Kc6 Ne5+ 52. Kc7 $2 (52. Kd5 {mates} Nd7 53. Kd6 Nb6 54. b5 Kg6 55. Kc6 Nc4 56. Nd6 Ne5+ 57. Kd5) 52... Nc4 {The position is equal.} 53. b5 Kg6 $1 54. Nd6 Nb2 $1 55. Kc6 Na4 56. Ne4 Nb2 57. Kd5 $1 Na4 58. Kc6 Nb2 59. Nd2 {Strongly threatening b6.} Na4 60. Nb3 Kf7 61. Nc5 Nb2 $1 62. Kd5 {White threatens b6 and mate.} Ke7 63. b6 {Threatening mate with b7.} Kd8 64. Na6 {b7 would kill now.} Nd3 $1 65. Kc6 Ne5+ 66. Kb5 {White wants to mate with b7.} Kc8 67. Nc5 Kb8 68. Ka6 {aiming for b7.} Ka8 69. Kb5 {Hoping for Ka6.} Kb8 70. Ka6 {b7 is the strong threat.} Ka8 71. Ne6 Nd7 72. b7+ Kb8 73. Nd4 {Accuracy: White = 66%, Black = 52%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.06"]
[Round "1.2"]
[White "Harikrishna, Pentala"]
[Black "Svidler, Peter"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2748"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,65,20,25,0,6,16,15,9,34,34,37,15,20,11,29,20,28,15,17,14,14,14,14,7,17,16,16,16,28,14,10,0,0,0,0,-25,-6,-6,-14,-14,-17,-14,-2,-32,-45,-22,0,-12,-18,-16,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3 d6 6. a4 a6 7. O-O h6 8. Be3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (8. Re1 a5 9. d4 Ba7 10. h3 g5 11. dxe5 Nxe5 12. Nxe5 dxe5 13. Qxd8+ Kxd8 14. Bxf7 g4 15. hxg4 Nxg4 {½-½ (25) Vachier Lagrave,M (2778)-Anand,V (2756) Saint Louis 2019}) 8... Bxe3 9. fxe3 O-O 10. Nbd2 Be6 11. Bxe6 fxe6 12. Qb3 $146 ({Predecessor:} 12. b4 Qe8 13. Qb3 g5 14. d4 g4 15. Nh4 {0-1 (50) Nopin,V (2380)-Laane,E (2395) ICCF email 2008}) 12... Qd7 13. d4 Kh7 14. Rad1 Rab8 15. Nc4 {[%cal Rd4e5]} exd4 16. exd4 b5 17. axb5 axb5 18. Ne3 Ne7 19. Qc2 {[#] Hoping for e5+.} Kg8 20. Rde1 Rbe8 21. h3 Rf7 22. b3 Qc6 23. Nd2 Ref8 24. c4 bxc4 25. bxc4 e5 26. dxe5 dxe5 27. c5 Ng6 28. Nf5 Kh7 29. Nf3 Nxe4 {The position is equal.} 30. Nxe5 Nxe5 31. Rxe4 Ng6 ({Reject} 31... Rxf5 $6 32. Rxe5 g6 33. Rfxf5 $16) 32. Re3 Kh8 33. Ree1 {Accuracy: White = 45%, Black = 64%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.05"]
[Round "1.2"]
[White "Nakamura, Hikaru"]
[Black "Topalov, Veselin"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2745"]
[BlackElo "2736"]
[Annotator "ChessBase"]
[PlyCount "132"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. h3 Nd7 7. Bg5 f6 8. Be3 Bxe3 9. fxe3 Qe7 10. Nc3 b6 11. O-O Bb7 12. Nh4 g6 13. Qe1 O-O-O 14. a3 Kb8 15. b4 c5 16. Na4 Bc6 17. Nb2 Rhg8 18. Rd1 Rdf8 19. c4 f5 20. b5 Bb7 21. exf5 gxf5 22. Rd2 Qg5 23. e4 fxe4 24. Rxf8+ Nxf8 25. dxe4 Ne6 26. Nf3 Qh5 27. Kh2 Nd4 28. Qe3 Bc8 29. Ne1 Qg6 30. Ned3 Re8 31. Nd1 Qg8 32. N3b2 Be6 33. Qd3 Rd8 34. Qc3 h5 35. Rf2 h4 36. a4 Qg6 37. Qe3 Rg8 38. Kh1 Qh5 39. a5 Kc8 40. Qe1 Rg3 41. Qf1 Kd7 42. Nd3 Ke7 43. N1b2 Rg8 44. a6 Qg5 45. Qg1 c6 46. bxc6 Nxc6 47. Rf1 Qg3 48. Qf2 Qxf2 49. Nxf2 Rd8 50. Nfd1 Rd2 51. Rf2 Rxf2 52. Nxf2 Na5 53. Kh2 Nxc4 54. Na4 Kd6 55. Nc3 Kc6 56. g3 hxg3+ 57. Kxg3 b5 58. Nd3 b4 59. Na4 b3 60. h4 Bf7 61. Kg4 Bg6 62. Nc3 b2 63. Kf3 Kd6 64. Nb5+ Kd7 65. Nxb2 Nxb2 66. Nxa7 Bh5+ 0-1

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.06"]
[Round "1.2"]
[White "Topalov, Veselin"]
[Black "Nakamura, Hikaru"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2736"]
[BlackElo "2745"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,50,18,45,31,58,58,58,54,70,65,43,27,8,0,0,0,0,0,0,0,1,-11,0,0,0,0,52,45,53,54,38,45,89,44,43,51,52,41,60]} 1. d4 d5 2. c4 dxc4 3. e3 Nf6 4. Bxc4 e6 5. Nf3 a6 6. O-O c5 7. Bb3 Nbd7 8. e4 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} cxd4 9. e5 Ng4 10. Re1 Nc5 11. h3 Nh6 $1 12. Nxd4 $146 ({Predecessor:} 12. Bg5 Be7 13. Bxe7 Qxe7 14. Qe2 Bd7 15. Na3 Bc6 16. Rad1 Nf5 17. Nxd4 g6 18. Nxc6 bxc6 {½-½ (18) Tregubov,P (2635)-Guliyev,N (2507) Paris 2011}) 12... Nxb3 13. axb3 Nf5 14. Be3 Nxd4 15. Bxd4 Bd7 16. Nc3 Bc6 17. Re3 Qh4 18. Bb6 Be7 19. Rg3 Bd8 (19... Qf4 $11) 20. Bc5 $1 $14 {[#] And now Rg4 would win.} Bc7 21. Rg4 Qh5 22. Bd6 Rd8 23. Rxg7 Qxd1+ {White is slightly better.} 24. Rxd1 Bxd6 25. exd6 Rd7 {Accuracy: White = 67%, Black = 61%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.06"]
[Round "1.2"]
[White "Vitiugov, Nikita"]
[Black "Navara, David"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2732"]
[BlackElo "2717"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,116,11,11,6,6,6,8,6,4,6,10,6,10,7,7,0,6,7,1,0,3,8,14,3,22,15,46,29,44,14,7,0,0,-7,10,7,14,14,10,0,0,0,0,0,1,1,14,18,70,86,70,70,70,70,150,139,223,122,114,110,233,233,233,233,233,34,34,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 Nbd7 11. Nc3 h6 12. Bxf6 {E05: Open Catalan: 5 Nf3 Be7} Nxf6 13. Rfd1 Bd5 14. Qd3 Bxf3 15. Bxf3 c6 {[#]} 16. h4 $146 ({Predecessor:} 16. e3 a5 17. h4 h5 18. e4 g6 19. Qe3 Re8 {1-0 (47) Grischuk,A (2759)-Dominguez Perez,L (2763) Khanty-Mansiysk 2019}) 16... Qa5 17. Qc2 Rad8 18. Kg2 h5 19. Rab1 Rd7 20. Na2 Rfd8 21. b4 Qc7 22. e3 e5 23. dxe5 Qxe5 24. Rxd7 Rxd7 25. Nc3 (25. b5 $5) 25... g6 26. Rb3 Kg7 27. Qb2 Nd5 28. Nxd5 Qxb2 29. Rxb2 cxd5 $11 {[%mdl 4096] Endgame KRB-KRB} 30. b5 Bf6 31. Rd2 axb5 32. axb5 d4 $1 33. Be2 Re7 34. exd4 Bxd4 ({Black should try} 34... Rd7 $11) 35. Rxd4 $14 Rxe2 $11 {KR-KR} 36. Rd7 b6 37. Rd6 Rb2 (37... f6 $1 $14 38. Rxb6 g5 39. hxg5 fxg5 40. Rb7+ Kf6) 38. Rxb6 $16 Rb3 (38... Kf8 $16 {keeps fighting.} 39. Kf3 Ke7) 39. Kf1 (39. Rb8 $18) 39... Rb2 40. Ke1 f6 (40... Kf8 $16) 41. Rb7+ $18 Kh6 {[#]} 42. f4 $1 g5 {[#]} 43. hxg5+ $2 ({Only move:} 43. fxg5+ $1 $18 fxg5 44. b6) 43... fxg5 $14 44. Rb6+ Kg7 {The position is equal.} 45. fxg5 {Threatens to win with Kf1.} Rg2 $1 46. Rh6 {b6 is the strong threat.} Rxg3 47. Rxh5 {And now b6 would win.} Rb3 48. g6 Kxg6 49. Rc5 Kf6 50. Kd2 {Black should prevent Kc2.} Ke6 51. Kc2 (51. Kd1 {looks sharper.} Rh3 52. Ke2 Kd6 53. Rc6+ Kd5 54. Rb6) 51... Rh3 52. Rc3 Rxc3+ 53. Kxc3 $11 {Kb4 would kill now. KP-K} Kd6 54. Kb4 $1 {[%cal Rb4a5]} Kc7 55. Ka5 $1 {[%cal Ra5a6] Threatening mate with Ka6.} Kb7 56. b6 {[%cal Bb5b6,Bb6b7][%mdl 32]} Kb8 57. Ka6 {White wants to mate with b7.} Ka8 58. b7+ Kb8 59. Kb6 {Accuracy: White = 61%, Black = 64%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.06"]
[Round "1.2"]
[White "Wei, Yi"]
[Black "Vachier-Lagrave, Maxime"]
[Result "1/2-1/2"]
[ECO "B90"]
[WhiteElo "2724"]
[BlackElo "2774"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,53,25,24,24,13,16,15,9,-18,11,-12,0,9,36,-64,-52,-76,-63,-84,-58,-103,-121,-104,-124,-131,-60,-57,-48,-30,-34,-76,-56,-44,-44,-43,-38,-34,-48,-64,0,0,0,-66,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Nb3 e6 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (6... Nbd7 7. Be3 h5 8. a4 g6 9. a5 Bg7 10. Be2 b5 11. axb6 Nxb6 12. h3 Qc7 13. Qd4 Rb8 14. Bxa6 {½-½ (31) Svidler,P (2729)-Vachier Lagrave,M (2774) Khanty-Mansiysk 2019}) 7. g4 b5 8. Bg2 {And now e5! would win.} Bb7 9. g5 Nfd7 10. h4 Nc6 (10... b4 $5 {[%cal Rb4c3]} 11. Ne2 a5 $11) 11. f4 Be7 12. Ne2 $146 (12. Be3 $14) ({Predecessor:} 12. Be3 Nb6 13. Qe2 Nc4 14. O-O-O {1-0 (38) Esipenko,A (2584)-Keymer,V (2500) Wijk aan Zee 2019}) 12... h6 $15 13. Ned4 {[#]} Nxd4 $1 14. Qxd4 hxg5 15. hxg5 Rxh1+ 16. Bxh1 e5 17. Qf2 exf4 (17... a5 $17 18. a4 bxa4 19. Rxa4 Bc6) 18. Bxf4 Bxg5 19. Bxd6 Rc8 20. c3 Bh4 21. Bg3 Bxg3 22. Qxg3 {[#]} b4 $1 {[%mdl 512]} 23. O-O-O (23. cxb4 Qe7) 23... Qf6 {[%cal Rb4c3]} 24. Rd6 Qf1+ 25. Rd1 Qf6 {[%cal Rb4c3]} 26. Rd6 Qf1+ (26... Qe7 $15) 27. Rd1 {Accuracy: White = 52%, Black = 66%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.06"]
[Round "1.2"]
[White "Dubov, Daniil"]
[Black "Radjabov, Teimour"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2699"]
[BlackElo "2758"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,35,-41,-16,0,0,0,0,0,0,-6,-8,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d4 Bxd4 6. Nxd4 Nxd4 7. Bg5 d6 8. f4 {The position is equal. C50: Hungarian Defence and Giuoco Pianissimo} Bg4 (8... Be6 9. Na3 Qe7 10. fxe5 dxe5 11. c3 Bxc4 12. Bxf6 gxf6 13. Nxc4 Ne6 14. b4 Rg8 15. Kh1 Nf4 {1-0 (62) Babujian,L (2459)-Mikaelyan,A (2496) Yerevan 2018}) 9. Bxf6 Bxd1 10. Bxd8 Rxd8 11. c3 Be2 12. cxd4 Bxc4 13. Rc1 Bd3 $146 ({Predecessor:} 13... b5 14. dxe5 dxe5 15. fxe5 a6 16. Na3 Rd4 17. b3 Bd3 18. Rxc7 Bxe4 19. Nc2 Rd7 20. Rc8+ Rd8 21. Rxd8+ Kxd8 22. Nd4 Re8 {½-½ (22) Kubis,F (1994)-Polyakov,E (1950) ICCF email 2012}) 14. Rxc7 Rd7 15. Rc8+ Rd8 16. Rxd8+ Kxd8 17. dxe5 {Black must now prevent Nc3.} Bxb1 18. Rxb1 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.3"]
[White "Yu, Yangyi"]
[Black "Jakovenko, Dmitry"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2753"]
[BlackElo "2681"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,101,37,19,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,10,0,0,0,0,0,0,0,0,0,63,59,52,55,81,32,189,179,184,176,185,177,181,174,229,236,214,7,213,241,277,270,270,276,274,275,273,259,268,241,338,322,400,402,391,372,422,414,853,850,1016,989,1417,1347,1134,1058,1141,1768,1688,1644,1351,1238,29969,29970,29970,29971,29966,29964,29979,29980,29979,29980]} 1. c4 Nf6 2. Nc3 c5 3. g3 e6 4. Nf3 b6 5. Bg2 Bb7 6. O-O Be7 7. Re1 d5 {A30: Symmetrical English: Double Fianchetto and Hedgehog} 8. d4 dxc4 9. e4 $146 ({Predecessor:} 9. dxc5 Bxc5 10. Qa4+ Nbd7 11. Bg5 O-O 12. Red1 Qc8 13. e3 Bc6 14. Qxc4 Qb7 15. Bxf6 Nxf6 {½-½ (47) Kamsky,G (2723)-Gashimov,V (2717) Sochi 2008}) 9... cxd4 {The position is equal.} 10. Nxd4 O-O 11. e5 Bxg2 12. Kxg2 Nd5 13. Qg4 $1 {aiming for Nxe6!} Kh8 14. Rd1 $1 Na6 15. Nf5 exf5 16. Qxf5 Nab4 {Threatens to win with ...Nd3.} 17. Nxd5 $1 {And now Nf6 would win.} Nd3 18. Nf4 g6 19. Qg4 Nxe5 20. Qe2 Nd3 (20... Qb8 $11) 21. Nxd3 $14 cxd3 22. Rxd3 Qc7 23. Bh6 Rfe8 $2 (23... Rfd8 $14) 24. Qf3 $18 {Hoping for Rc1.} Bf8 {[#]} 25. Rc1 $1 Qe7 26. Re3 Qd7 27. Rd1 $40 {[%mdl 128] White wants a kill.} Qc7 (27... Qb5 {was called for.}) 28. Bxf8 Rxf8 29. Qf6+ Kg8 30. Re7 Qc2 {[#]} 31. Rdd7 $1 {[%csl LRa7,LRf7][%cal Re7f7][%mdl 512]} Qf5 32. Qxf5 gxf5 33. Rxa7 Rxa7 34. Rxa7 {[%mdl 4096] Endgame KR-KR} Rd8 35. Ra6 Rd6 (35... b5 $142 36. Rb6 Rd5) 36. Kf3 Kg7 37. Ke3 Re6+ 38. Kd3 f4 39. a4 {[%cal Ba2a4,Ba4a5,Ba5a6,Ba6a7][%mdl 32]} Rh6 (39... Rd6+ $142 40. Kc3 Rc6+ 41. Kd4 Rh6 42. gxf4 Rd6+ 43. Ke3 Kf8) 40. a5 Rxh2 41. Rxb6 Rxf2 42. gxf4 Rxf4 43. b4 {[%cal Bb2b4,Bb4b5,Bb5b6][%mdl 32]} h5 44. a6 Rf3+ 45. Ke2 Ra3 46. b5 f6 47. Rb7+ {White mates.} Kg6 48. a7 Ra2+ 49. Kd3 h4 50. b6 h3 51. Rb8 {Accuracy: White = 93%, Black = 52%.} 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.3"]
[White "Wojtaszek, Radoslaw"]
[Black "Grischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2748"]
[BlackElo "2759"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,69,22,13,11,27,20,18,8,24,35,27,13,13,1,4,0,0,0,0,0,0,0,0,-21,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-27,0,-30,17,17,34,-35,31,0,58,47,67,-33,0,-50,4,-31,0,-51,0,-27]} 1. d4 e6 2. c4 b6 3. a3 Bb7 4. Nc3 f5 5. Bf4 (5. d5 Nf6 6. g3 Bd6 7. Bg2 O-O 8. Nf3 a5 9. O-O Na6 10. Nb5 Nc5 11. Nxd6 cxd6 12. Nd4 Qe7 13. Nb5 e5 14. b3 a4 15. b4 Nb3 16. Rb1 Rfc8 17. Rxb3 axb3 18. Qxb3 {0-1 (39) Postny,E (2623)-Lenderman,A (2637) chess.com INT 2019}) 5... Nf6 6. e3 {A40: Unusual replies to 1 d4} Be7 7. Nf3 O-O 8. Be2 Ne4 9. Nxe4 Bxe4 10. h3 d6 11. Bd3 $146 ({Predecessor:} 11. O-O Nd7 12. Rc1 Bf6 {1-0 (33) Cruz Diaz,F (1641)-Darias Darias,L (1799) Tenerife 2015}) 11... Bf6 12. Bxe4 fxe4 13. Nd2 Bxd4 14. Qc2 Nd7 15. Nxe4 {[#] Hoping for Ng5!} Bf6 16. h4 a5 ({Reject} 16... Bxh4 $6 {[#]} 17. Ng5 $1 $16 {[%mdl 512]}) 17. O-O-O Qe8 18. g4 Nc5 19. g5 Be7 20. Bg3 Qc6 21. Nc3 a4 22. Kb1 Rf3 23. Nb5 e5 24. Nc3 Raf8 25. Rd5 Qe8 26. Ne4 Nxe4 27. Qxe4 Qf7 28. Rhd1 (28. Rd3 $14) 28... Qh5 (28... Qf5 $1 $15 29. Qxf5 R8xf5) 29. Qc2 h6 (29... Ra8 $11) 30. gxh6 $14 Qxh6 31. Rh1 ({Better is} 31. Ka1 $14) 31... Ra8 32. Qe4 Raf8 (32... Qh7 $15 33. Qxh7+ Kxh7) 33. Qc2 Ra8 34. Qe4 Raf8 (34... Qh7 $15 35. Qxh7+ Kxh7) 35. Qc2 {Accuracy: White = 51%, Black = 48%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.3"]
[White "Vitiugov, Nikita"]
[Black "Navara, David"]
[Result "0-1"]
[ECO "A14"]
[WhiteElo "2732"]
[BlackElo "2717"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,74,18,6,0,0,-4,13,17,24,17,8,4,35,0,0,-16,-9,-20,-16,-15,-16,-19,44,45,53,31,58,52,55,49,65,63,80,85,90,89,79,89,107,125,128,67,60,74,146,-86,-64,-405,-394,-383,-383,-401,-413,-1443,-1637,-1508,-1441,-1363,-1350,-1079,-1021,-922,-952,-961,-952]} 1. Nf3 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. O-O O-O 6. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} d4 7. Bb2 {A14: English Opening: 1...e6 with b3 by White} (7. e3 c5 8. exd4 cxd4 9. Re1 Nc6 10. Bb2 Bd6 11. Nxd4 Nxd4 12. Bxd4 Bxg3 13. hxg3 Qxd4 14. Nc3 Ng4 15. Qf3 f5 16. Nb5 Qb6 17. Qf4 e5 18. Rxe5 Nxe5 19. Qxe5 {1-0 (37) Artemiev,V (2761)-Korobov,A (2687) Poikovsky 2019}) 7... c5 8. b4 a5 9. bxc5 {The position is equal.} Nc6 10. Na3 e5 11. Nb5 Bg4 $146 ({Predecessor:} 11... Be6 12. Qc2 Nd7 13. Ba3 Bxc5 14. Bxc5 Nxc5 {1-0 (47) Couso,L (2328)-Lissang,C (2273) Stockholm 2015}) 12. d3 Bxc5 13. Rb1 Re8 14. Nd2 Qd7 15. Nb3 Bf8 16. Ba3 Nb4 ({Black should try} 16... Bxa3 $11 17. Nxa3 b6) 17. Qd2 $14 Bh3 18. Nxa5 $1 Bxg2 19. Kxg2 Rxa5 20. Bxb4 Bxb4 21. Rxb4 h5 22. Rb2 Ra6 23. Qg5 Nh7 24. Qh4 g5 25. Qxh5 Kg7 26. Kg1 (26. Qf3 $16) 26... Rh6 $1 {[%cal Rh6h5]} 27. Qf3 Nf6 {[#]} (27... Rh8 $142) 28. e4 $2 {[#]} (28. c5 $1 $16 {is necessary to keep the advantage. Strongly threatening Nd6.} e4 29. dxe4 Nxe4 30. Rd1) 28... Reh8 $1 $36 {[%mdl 2048] Black has some pressure.} 29. Qf5 $2 {[%mdl 8192]} (29. h4 $1 $15) 29... Qxf5 $19 30. exf5 Rxh2 31. Rfb1 e4 32. dxe4 (32. Kf1 $142 exd3 33. Nd6) 32... g4 {Black is clearly winning.} 33. Kf1 d3 34. f3 gxf3 {( -> ...Ng4)} 35. Nd4 Rxb2 36. Rxb2 Rh1+ 37. Kf2 Rh2+ {[%mdl 64] Decoy. Accuracy: White = 46%, Black = 56%.} 0-1

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.05"]
[Round "1.3"]
[White "Navara, David"]
[Black "Vitiugov, Nikita"]
[Result "1/2-1/2"]
[ECO "C89"]
[WhiteElo "2717"]
[BlackElo "2732"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 26,50,15,9,38,40,33,20,21,29,34,39,45,36,31,33,47,41,37,15,19,11,19,5,5,6,6]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5 11. Rxe5 c6 12. d3 Bd6 13. Re1 Bf5 14. Qf3 Qh4 {C89: Closed Ruy Lopez: Marshall Attack} 15. g3 Qh3 16. Be3 Bxd3 ({But not} 16... Nxe3 $6 17. Rxe3 Rac8 18. Nd2 $16) 17. Nd2 Bf5 {[#]} 18. Bxd5 $146 ({Predecessor:} 18. Bd4 Rfe8 19. c4 Bg4 20. Qg2 Qxg2+ 21. Kxg2 Nb4 22. Ne4 {1-0 (36) So,W (2788)-Onischuk,A (2665) Saint Louis 2015}) 18... cxd5 19. Qxd5 Rfd8 20. Qg2 (20. Qf3 {seems wilder.} Bg4 21. Qe4 Bf5 22. Qh1 Rac8 23. Rad1) 20... Qxg2+ 21. Kxg2 b4 22. Bd4 Bf8 {The position is equal.} 23. Nb3 Be6 24. Bb6 Rdb8 25. Ba5 bxc3 {Accuracy: White = 63%, Black = 74%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.3"]
[White "Dubov, Daniil"]
[Black "Radjabov, Teimour"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2699"]
[BlackElo "2758"]
[Annotator "TA"]
[PlyCount "29"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,29,0,20,-5,-13,-16,-12,-21,-13,-38,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 h6 6. Be3 Bb6 7. d4 {C50: Hungarian Defence and Giuoco Pianissimo} (7. Nd5 d6 8. c3 O-O 9. Nxb6 axb6 10. Bb3 d5 11. Bc2 Be6 12. O-O Ng4 13. Bd2 f5 14. exf5 Bxf5 15. Re1 {0-1 (33) Yilmaz,M (2468)-Alekseev,E (2700) Rijeka 2010}) 7... exd4 8. Nxd4 O-O 9. O-O Ne5 10. Be2 d5 $146 (10... Re8 {keeps more tension.} 11. h3 d6 12. a3 Ng6 13. Qd3 Qe7) ({Predecessor:} 10... d6 11. f3 Be6 12. Qe1 Nc6 13. Qf2 Nxd4 14. Bxd4 Bxd4 15. Qxd4 c5 {0-1 (55) Souza,V-De Freitas,F Americana 2014}) 11. exd5 {The position is equal.} Nxd5 12. Nxd5 Qxd5 13. Nb5 Qxd1 14. Rfxd1 Bg4 15. Bxg4 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.4"]
[White "Grischuk, Alexander"]
[Black "Wojtaszek, Radoslaw"]
[Result "1-0"]
[ECO "A08"]
[WhiteElo "2759"]
[BlackElo "2748"]
[Annotator "TA"]
[PlyCount "101"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,101,-25,-24,-27,-21,-14,-22,24,14,15,4,39,38,37,29,45,45,20,41,34,21,33,22,11,2,14,45,54,0,0,-17,23,-14,-11,0,-29,-104,29,39,33,34,99,29,26,52,60,53,64,39,90,62,98,85,94,83,86,89,107,107,209,194,224,222,246,218,228,236,214,221,253,222,255,263,348,271,255,221,262,165,353,349,439,442,1021,515,502,485,625,627,980,705]} 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O e5 5. d3 d5 6. e4 d4 7. a4 Bd6 {A08: King's Indian Attack} 8. Na3 h6 (8... Be6 9. Ng5 Bg4 10. f3 Bh5 11. h4 h6 12. Nh3 Nd7 13. Nf2 g5 14. hxg5 hxg5 15. Bh3 {1-0 (48) Grischuk,A (2775)-Caruana,F (2819) Stavanger 2019}) 9. Nh4 g6 $146 {The position is equal.} ({Predecessor:} 9... Be6 10. Nf5 O-O 11. Nxd6 Qxd6 12. f4 Qe7 13. Bd2 Rad8 14. a5 Bd7 15. Qf3 Bg4 16. Qf2 Be6 17. Qe2 Rc8 18. Rae1 Ra8 19. b3 Rad8 20. h3 {½-½ (20) Tauscher,K (2444)-Leisebein,P (2434) Remote email 2013}) 10. f4 exf4 11. gxf4 Ng4 12. Nf3 g5 13. e5 $1 {[%cal Re5d6]} Be7 14. Qe2 gxf4 15. Bxf4 Rg8 16. Nc4 Be6 $1 17. Kh1 Qd7 18. Nfd2 {Threatens to win with Nd6+.} O-O-O 19. a5 Bd5 20. Ne4 (20. Bxd5 $14 Qxd5+ 21. Qf3) 20... Qe6 $1 $11 {[%cal Rc6e5]} 21. Rae1 Kb8 22. Ncd6 Ne3 23. Bxe3 dxe3 24. Qxe3 {[#]} (24. c4 $1 $11 {keeps the balance.} Bxe4 25. Bxe4 Nxe5 26. Nf5) 24... Nxe5 ({Much worse is} 24... Bxd6 $6 25. exd6 Nd4 26. Rf2 $11) (24... Rxg2 $1 $17 25. Kxg2 Nd4) 25. Nf5 Rg6 26. Re2 Ka8 ({Black should try} 26... Rdg8 $14) 27. Neg3 (27. Nxe7 $16 Qxe7 28. Nxc5 (28. Qxc5 Qe6 $14) 28... Bxg2+ 29. Rxg2) 27... Bxg2+ 28. Rxg2 Bf8 29. a6 bxa6 30. Re1 f6 (30... Nc6 $14) 31. Qe4+ Qd5 32. Rf2 Qb7 33. Qxb7+ Kxb7 34. Ne4 c4 35. d4 {[%mdl 1024] White has strong compensation.} Nc6 (35... Nd7 $16) 36. c3 $18 Kc7 37. Ne3 a5 38. Ref1 a4 39. Nxc4 Be7 40. Ne3 a5 41. Ra1 a3 42. bxa3 a4 43. Rf5 Rb8 44. Nd5+ Kd7 45. Nb4 Nd8 $2 (45... Nxb4 {is a better defense.} 46. cxb4 (46. axb4 Ra8 $16) 46... Rc8 47. Rd5+ Ke8) 46. Ra5 Rg4 47. Re1 {White is clearly winning.} Rb6 (47... f5 $142 48. Rxf5 Rg6) 48. Ra7+ Rb7 49. Rxa4 Ne6 50. Ra6 Rb5 {[#]} 51. Ra7+ {Played: Ra6xe6} 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.4"]
[White "Radjabov, Teimour"]
[Black "Dubov, Daniil"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2758"]
[BlackElo "2699"]
[Annotator "ChessBase"]
[PlyCount "147"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "1500+10"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. O-O Bg7 6. Re1 Qc7 7. c3 d6 8. h3 Nf6 9. d4 cxd4 10. cxd4 O-O 11. Nc3 Rd8 12. Bf4 Nh5 13. Bh2 Qb6 14. Qc2 Rb8 15. b3 Qa5 16. Rad1 Nf6 17. Qd2 Nd7 18. e5 Nb6 19. exd6 exd6 20. Bxd6 Ra8 21. Bc7 Rf8 22. Ne5 Bb7 23. Bd6 Rfe8 24. b4 Qa6 25. Ne4 Na4 26. Nd7 Rxe4 27. Rxe4 c5 28. Qe3 Bxe4 29. Qxe4 Rc8 30. bxc5 Nc3 31. Qd3 Ne2+ 32. Kf1 Qxd3 33. Rxd3 Nxd4 34. Nb8 h5 35. Na6 Kh7 36. g3 g5 37. Nb4 g4 38. hxg4 hxg4 39. Nd5 Rc6 40. Kg2 Ra6 41. Rd1 Rxa2 42. Rh1+ Kg6 43. Nf4+ Kf5 44. Rh7 Bf6 45. Rxf7 Nf3 46. Be7 Ra1 47. Rxf6+ Ke4 48. Ne2 Ne1+ 49. Kh2 Nf3+ 50. Rxf3 Kxf3 51. Nc3 Kxf2 52. Bg5 Ra3 53. Bd2 Ra6 54. Bf4 Kf3 55. Nb5 Ra2+ 56. Kg1 Ra1+ 57. Kh2 Ra2+ 58. Kg1 Ra1+ 59. Kh2 Ra5 60. Nd4+ Ke4 61. Nb3 Rb5 62. Nd2+ Kd5 63. Nf1 a5 64. Ne3+ Kxc5 65. Nxg4 a4 66. Bg5 Kc4 67. Be7 Rb7 68. Bf8 Kb3 69. Kg2 Rb8 70. Bd6 Rb6 71. Bf8 Rb4 72. Ne5 a3 73. Nd3 Rb8 74. Bxa3 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.05"]
[Round "1.4"]
[White "Wojtaszek, Radoslaw"]
[Black "Grischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2748"]
[BlackElo "2759"]
[Annotator "RC"]
[PlyCount "92"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 c5 9. dxc5 Bxc5 10. Bf4 Nc6 11. Nbd2 Nd5 12. Nxc4 Qe7 13. Bd2 Bd7 14. Ng5 f5 15. Nf3 Ncb4 16. Qd1 f4 17. Nce5 Be8 18. Rc1 a5 19. Rc4 b5 20. axb5 Bxb5 21. Re4 Rad8 22. Qc1 fxg3 23. hxg3 Nf6 24. Bg5 Qc7 25. Bxf6 gxf6 26. Ng4 Rc8 27. Kh1 Qg7 28. Nh6+ Kh8 29. Qf4 Bd7 30. g4 Nd5 31. Qh2 Rb8 32. g5 fxg5 33. Nf7+ Qxf7 34. Nxg5 Qg6 35. Nxh7 Qxh7 36. Rh4 Qxh4 37. Qxh4+ Kg7 38. Be4 Kf7 39. Rg1 Nf6 40. Qh6 Ke7 41. Rg7+ Kd8 42. Qd2 Bb4 43. Qd4 Rc8 44. Qb6+ Rc7 45. Qb8+ Rc8 46. Qb6+ Rc7 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.4"]
[White "Navara, David"]
[Black "Vitiugov, Nikita"]
[Result "1-0"]
[ECO "A89"]
[WhiteElo "2717"]
[BlackElo "2732"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,61,54,57,25,27,20,45,43,57,59,104,103,141,168,272,134,134,133,132,112,261,129,132,95,95,61,70,69,217,213,551,551,674,682,764,758,758,757,756,756]} 1. d4 f5 2. Nf3 Nf6 3. c4 g6 4. g3 Bg7 5. Bg2 O-O 6. O-O d6 7. Nc3 Nc6 8. d5 Ne5 9. Nxe5 dxe5 10. c5 Kh8 11. Qb3 h6 12. Rd1 g5 13. a4 {A89: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 Nc6} (13. Bd2 a6 14. Na4 Qe8 15. Ba5 Bd7 16. Nc3 Qc8 17. Rac1 f4 18. d6 Bc6 19. dxe7 Re8 20. Nd5 Nxd5 21. Bxd5 Bxd5 22. Qxd5 Rxe7 {1-0 (31) Buhmann,R (2589)-Lagarde,M (2591) Berlin 2018}) 13... a6 14. a5 Qe8 15. d6 {White is slightly better.} exd6 16. cxd6 cxd6 17. Rxd6 Qh5 18. Nd5 $146 ({Predecessor:} 18. h3 Rb8 19. Qd1 f4 20. g4 Bxg4 21. hxg4 Nxg4 {0-1 (30) Haves,R-Noetzel,F Germany 1988}) 18... Ne4 (18... Nxd5 $142 19. Bf3 Qh3 20. Qxd5 (20. Bxd5 f4 $16) 20... e4) 19. Bf3 (19. Bxe4 $1 $18 {is the precise move to win.} fxe4 20. Ne7) 19... Qf7 $16 20. Bxe4 $1 fxe4 21. Qb6 Qh5 (21... Bf5 $16 {was worth a try.}) 22. Bd2 (22. Ne7 $18 {is more deadly.}) 22... Bg4 23. Bc3 {Threatens to win with Bxe5!} ({Don't take} 23. Qxb7 $6 Rab8 $11) 23... Rae8 24. Nf6 Rxf6 25. Rxf6 Bxe2 (25... Bxf6 $14 26. Qxf6+ {[%mdl 64] Double Attack} Kh7) 26. Re6 $18 Kh7 $2 {[#]} (26... Rxe6 27. Qxe6 e3) 27. Bxe5 $1 {[%mdl 512] White is clearly winning.} Bxe5 28. Qxb7+ Kh8 {[#]} 29. Rxe8+ $1 Qxe8 30. Qxe4 Qb5 31. Re1 {Accuracy: White = 38%, Black = 21%.} 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.4"]
[White "Jakovenko, Dmitry"]
[Black "Yu, Yangyi"]
[Result "1/2-1/2"]
[ECO "A10"]
[WhiteElo "2681"]
[BlackElo "2753"]
[Annotator "ChessBase"]
[PlyCount "128"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "1500+10"]

1. c4 g6 2. e4 e5 3. d4 Nf6 4. Nf3 exd4 5. e5 Nh5 6. Qxd4 Nc6 7. Qe4 Bb4+ 8. Nc3 O-O 9. Bg5 f6 10. Qd5+ Kh8 11. exf6 Nxf6 12. Qd3 d6 13. Be2 Bf5 14. Qd1 Qd7 15. O-O Bxc3 16. bxc3 Qg7 17. Qc1 Rfe8 18. Bh6 Qg8 19. Re1 Ng4 20. Bg5 Qg7 21. Nd4 Nxd4 22. cxd4 Qxd4 23. Bxg4 Bxg4 24. Be3 Qf6 25. c5 Kg8 26. h3 Bd7 27. cxd6 cxd6 28. Qc4+ Qf7 29. Qd4 Bc6 30. Rad1 Re6 31. Bd2 Qf6 32. Qc4 d5 33. Qb3 Rae8 34. Be3 h5 35. Rd4 Re4 36. Red1 Kh7 37. Qb4 a6 38. Rxe4 Rxe4 39. Bd4 Qe7 40. Qc3 Bb5 41. Bf6 Qf7 42. Bd4 Re2 43. a3 Re4 44. Qc8 Re8 45. Qc5 Qe7 46. Qc3 Qe2 47. Rc1 Bc6 48. Be3 Re4 49. Kh2 d4 50. Bxd4 Qb5 51. Bc5 Re2 52. Qf6 Qb3 53. Bd4 Qg8 54. Rc5 Re6 55. Qf4 Qe8 56. Be3 Qe7 57. Kg1 Qf6 58. Qh6+ Kg8 59. Rg5 Qg7 60. Qxg7+ Kxg7 61. Rc5 Kf7 62. Kh2 Re4 63. Rc3 Ke6 64. f3 Re5 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.5"]
[White "Radjabov, Teimour"]
[Black "Dubov, Daniil"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2758"]
[BlackElo "2699"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,123,0,16,8,12,0,8,13,27,11,21,5,24,15,15,3,10,10,29,24,45,34,47,-13,6,14,22,0,0,0,7,7,26,30,32,26,24,26,22,28,35,14,37,26,48,6,56,31,45,14,38,24,29,14,70,25,26,6,66,61,88,62,106,94,203,222,169,49,62,45,143,161,148,149,145,152,151,168,164,70,93,66,145,58,64,50,64,0,172,174,183,108,142,0,0,0,42,26,92,0,0,0,85,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 d6 5. c3 Nf6 6. Nbd2 Bb6 7. Bb3 O-O 8. Nc4 Ne7 9. h3 Ng6 10. O-O h6 11. Re1 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (11. a4 c6 12. Nxb6 Qxb6 13. Be3 Qc7 14. a5 d5 15. exd5 Nxd5 16. Bc5 Re8 17. Re1 Bf5 18. Bc2 b6 19. axb6 axb6 20. Rxa8 Rxa8 {1-0 (45) Antipov,M (2569)-Alekseev,E (2642) Berlin 2015}) 11... Re8 12. Nxb6 axb6 13. Bc2 Nh7 14. Be3 $146 ({Predecessor:} 14. Nh2 Qf6 15. Ng4 Bxg4 16. Qxg4 {½-½ (31) Gao,R (2427)-Kuderinov,K (2493) Ho Chi Minh City 2012}) 14... Qf6 15. Nh2 Qh4 16. Qf3 Ng5 17. Qg3 Qxg3 18. fxg3 Be6 19. a3 Rad8 20. Nf3 f6 21. c4 (21. d4 $14) 21... Nf8 22. Nd2 Ra8 23. g4 Bd7 24. Nb1 Nfe6 25. Nc3 Nf7 26. b4 Nfd8 27. Reb1 Nc6 28. a4 Ncd4 29. Bd1 Ra6 30. Ra2 Rea8 31. Rba1 Kf7 32. Kh2 Kg8 33. Kg3 Kf7 34. Kf2 Kg8 35. Ke1 Kf7 36. Kd2 Kg8 (36... Ke7 $11) 37. Kc1 Kf7 38. Kb1 Kg8 (38... c6 $11) 39. Nd5 $14 R6a7 40. g3 Kh8 41. h4 Be8 (41... Bc6 $16 {is a better defense.}) 42. Bxd4 $18 exd4 {[#]} 43. Bb3 (43. g5 $1 $18 {[%mdl 512]}) 43... Bd7 44. Rf2 b5 ({Wrong is} 44... Bxa4 $2 45. Rfa2 $18) (44... Bc6 $14) 45. a5 $16 bxc4 46. Bxc4 b6 {[%cal Rb6a5]} 47. Rfa2 b5 48. Bb3 Nd8 49. g5 (49. Rc2 $1 $18) 49... fxg5 50. hxg5 Nc6 {[#]} (50... Be6 $1 $14) 51. gxh6 ({White should try} 51. Rc2 $1 $16) 51... Ne5 $14 52. hxg7+ Kxg7 53. Nf4 ({White should play} 53. Rh2 $14) 53... c5 $2 (53... Nc6 $1 $11 {and Black is okay.}) 54. Bd5 $18 Rh8 {[#]} 55. Rc2 (55. Kb2 $1 $18) 55... c4 56. Kb2 (56. Raa2 $16) 56... cxd3 $11 57. Rf2 Rc8 58. Rh1 {Black must now prevent Rfh2.} Rac7 (58... Rc4 $1 $11 {remains equal.}) 59. Nh5+ (59. Kb1 $16) 59... Kg6 60. Nf4+ (60. Bb3 $11) 60... Kg7 $16 61. Nh5+ (61. Kb1 $16) 61... Kg6 $11 62. Nf4+ {Accuracy: White = 38%, Black = 22%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.05"]
[Round "1.5"]
[White "Radjabov, Teimour"]
[Black "Dubov, Daniil"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2758"]
[BlackElo "2699"]
[Annotator "TA"]
[PlyCount "28"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,23,16,12,14,35,23,22,26,40,32,27,33,10,27]} 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 g5 10. Nf1 g4 11. N3d2 h5 12. Nb3 {Predecessor:} g3 $146 13. Nxg3 Bg4 14. Qc2 h4 {0-1 (45) Oparin,G (2605)-Matlakov,M (2730) Sochi 2017} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.05"]
[Round "1.6"]
[White "Svidler, Peter"]
[Black "Harikrishna, Pentala"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2729"]
[BlackElo "2748"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,93,16,24,21,20,10,17,0,4,6,8,8,0,0,0,0,0,0,13,13,13,13,13,13,13,13,13,6,10,17,15,15,19,18,18,3,16,15,27,37,61,62,75,85,204,204,252,243,437,145,148,152,147,147,162,154,140,159,442,421,495,493,504,497,478,478,547,545,547,546,537,521,521,518,480,519,602,602,512,512,512,512]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. c3 a6 7. a4 h6 8. a5 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} (8. Re1 a5 9. d4 Ba7 10. h3 g5 11. dxe5 Nxe5 12. Nxe5 dxe5 13. Qxd8+ Kxd8 14. Bxf7 g4 15. hxg4 Nxg4 {½-½ (25) Vachier Lagrave,M (2778)-Anand,V (2756) Saint Louis 2019}) 8... O-O 9. h3 Ba7 10. Be3 {The position is equal.} d5 $146 ({Predecessor:} 10... Bd7 11. Nbd2 Ne7 12. Re1 Ng6 13. d4 exd4 14. cxd4 {1-0 (27) Nevednichy,V (2548)-Georgiev,K (2623) Thessaloniki 2018}) 11. exd5 Nxd5 12. Bxa7 Rxa7 13. Re1 Nf4 14. Nxe5 Qg5 $1 {[%csl Gf4,LRe5,LRg2,LRh3][%cal Rg5g2][%mdl 64] Double Attack} 15. Ng4 h5 16. Ne3 Bxh3 17. Qf3 Ne5 {[%mdl 64] Double Attack} 18. Qg3 $1 {[%cal Rg3g5]} Bg4 $1 ({But not} 18... Qxg3 19. fxg3 Nxg2 20. Nxg2 $16) 19. Nd5 Nxc4 20. Qxf4 Qxf4 21. Nxf4 Nxb2 22. Ra2 g5 $1 23. Rxb2 {Nd5 is the strong threat.} gxf4 24. Re5 Rd8 25. d4 Rd6 26. f3 Bd7 27. Nd2 $36 {[%mdl 3072] White has compensation. White is pushing.} b6 28. Ne4 Rg6 (28... Re6 $16) 29. Re7 $1 $18 {[%cal Re7d7]} ({Resist} 29. Rxh5 $6 Bb5 $16) 29... Bb5 30. d5 $1 {[%cal Rd5d6]} f5 $2 {[#]} (30... Ra8 {might work better.} 31. Rxc7 bxa5) 31. axb6 $2 (31. d6 $1 $18 {[%mdl 512] and the rest is easy.}) 31... Rxb6 $16 {[#]} 32. Nc5 $1 Kf8 33. Rh7 {Hoping for c4.} Kg8 34. Rxh5 Bc4 {[#]} 35. Rd2 $1 {[%cal Rd2d4] aiming for Rd4.} Rd6 $2 (35... a5 $16 {was necessary.}) 36. Rxf5 $18 {White is clearly winning.} c6 {[%cal Rd6d5]} 37. Ne4 Rxd5 38. Nf6+ {[%mdl 64] Double Attack} Kg7 39. Nxd5 cxd5 {[%mdl 4096] Endgame KRR-KRB} 40. Rd4 a5 41. Rdxf4 Kg6 42. Rf8 Kg7 43. Rb8 a4 {If Black can now play ...a3 this consolidates a bit.} 44. Rff8 d4 45. cxd4 Bd5 {With the idea ...a3.} 46. Rfd8 a3 {Threatens to win with ...a2.} 47. Rxd5 {Accuracy: White = 82%, Black = 51%.} ({Less strong is} 47. Rb1 a2 $16) 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.6"]
[White "Dubov, Daniil"]
[Black "Radjabov, Teimour"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2699"]
[BlackElo "2758"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,47,14,15,14,14,13,9,0,16,0,18,0,0,0,-3,0,17,-8,0,-20,-12,-17,-16,-14,-7,-8,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 {The position is equal.} 9. Bg5 {E05: Open Catalan: 5 Nf3 Be7} Bc6 10. e3 $146 ({Predecessor:} 10. Qxc4 Bd5 11. Qc2 Be4 12. Qc1 h6 13. Bxf6 Bxf6 14. Rd1 a5 15. Nbd2 Bxf3 16. Bxf3 c6 17. Nb3 Na6 18. h4 Qb6 19. Qc3 Rfd8 20. e3 Nb4 {½-½ (34) Rapport,R (2735)-Wang,H (2737) Danzhou 2019}) 10... Nbd7 11. Nbd2 h6 12. Bxf6 Nxf6 13. Nxc4 Be4 14. Qe2 c5 15. Rfd1 Qc7 16. Rac1 Rac8 17. a5 cxd4 18. Nxd4 Bxg2 19. Kxg2 Qc5 20. Qf3 {[#] aiming for Nb6.} Qb4 21. Nb6 Rxc1 22. Rxc1 Bc5 23. Qxb7 Bxd4 24. exd4 {Accuracy: White = 42%, Black = 71%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.7"]
[White "Radjabov, Teimour"]
[Black "Dubov, Daniil"]
[Result "0-1"]
[ECO "B30"]
[WhiteElo "2758"]
[BlackElo "2699"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,74,0,0,-11,0,-10,0,-7,-25,-25,-25,-20,-22,-23,-30,-30,-18,-26,-14,-44,-39,-197,-198,-189,-216,-242,-144,-279,-239,-275,-212,-316,-326,-312,-257,-371,-273,-318,-305,-474,-451,-596,-587,-593,-593,-579,-564,-982,-980,-998,-948,-905,-857,-1697,-593,-1200,-1166,-1282,-1213,-1153,-1131,-838,-577]} 1. e4 g6 2. Nf3 d6 3. Nc3 Bg7 4. h3 c5 5. Bc4 Nc6 6. O-O Nf6 7. d3 O-O 8. a4 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} (8. a3 a6 9. Nd5 b5 10. Ba2 Nxd5 11. exd5 Nd4 12. Nd2 e5 13. c3 Nf5 14. b4 cxb4 15. axb4 a5 16. bxa5 Rxa5 {½-½ (28) Filippov,A (2615)-Can,E (2529) Kocaeli 2014}) 8... b6 9. Nd5 Bb7 $146 ({Predecessor:} 9... Nxd5 10. exd5 Ne5 11. Nxe5 dxe5 12. a5 Bb7 13. Bg5 f6 14. d6+ Kh8 15. dxe7 Qxe7 {½-½ (46) Miklaszewski,S (1354)-Ederer,K (2005) LSS email 2013}) 10. c3 {The position is equal.} Nxd5 11. Bxd5 e6 12. Ba2 d5 13. Bg5 Qd7 14. Qc1 d4 {With the idea ...dxc3.} 15. Rd1 Rae8 16. h4 f5 17. exf5 $2 (17. Bf4 $15) 17... Rxf5 $19 (17... gxf5 18. Re1 $15) 18. Nh2 Ne5 $1 19. f3 Ba6 (19... Qd6 $19 20. Qc2 Nxf3+ $1 {[%mdl 512]} 21. Nxf3 Qg3) 20. c4 (20. Qd2 $17) 20... Bb7 ({Much less strong is} 20... Qxa4 21. b3 $17) 21. a5 Nf7 ({Don't take} 21... bxa5 22. Qd2 $17) 22. Bf4 (22. Bd2 $142) 22... Qd8 (22... bxa5 23. Rf1 $17) 23. Bg3 Bf6 ({Weaker is} 23... bxa5 24. Rf1 $17) 24. axb6 (24. Rf1 $142 Bxh4 25. Bxh4 Qxh4 26. Qe1) 24... axb6 25. Qd2 Bxh4 26. Qf2 (26. Bxh4 {was forced.} Qxh4 27. Qf2) 26... Bg5 {Hoping for ...Be3.Black is clearly winning.} 27. Nf1 h5 28. Re1 h4 29. Bh2 {[#]} h3 $1 {[%mdl 512]} 30. Ng3 (30. gxh3 Bh4) 30... Be3 {[%mdl 64] Overworked Piece} 31. Rxe3 dxe3 {[%mdl 64] Discovered Attack} 32. Qxe3 {[#]} hxg2 $1 {[%mdl 512]} 33. f4 (33. Kxg2 Rxf3) 33... Rf6 (33... Nh6 $142 34. Qe2 {[#]} Ng4 $1 {[%mdl 512]}) 34. Bb3 e5 35. Ne4 Bxe4 36. dxe4 exf4 37. Bxf4 Qc8 {Played: Qd8-d4} 0-1

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.05"]
[Round "1.7"]
[White "Jakovenko, Dmitry"]
[Black "Yu, Yangyi"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2681"]
[BlackElo "2753"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,34,37,31,31,14,27,14,27,8,14,12,14,12,14,8,6,11,14,0,0,0,1]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. Nbd2 Nxd2 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} (8... Nd6 9. c3 Bf5 10. Be2 O-O 11. Re1 Re8 12. Qb3 Be6 13. Bd3 Bf6 14. Nf1 g6 15. Bf4 Qd7 16. Ne3 {½-½ (67) Dominguez Perez,L (2750)-Bu,X (2729) Hengshui 2019}) 9. Qxd2 O-O 10. c3 Bd6 11. Qc2 $146 ({Predecessor:} 11. Re1 Qf6 12. Qc2 {1-0 (32) Bekris,N (2116)-Quirini,L (2259) ICCF email 2003}) 11... h6 {The position is equal.} 12. Re1 Qf6 13. Qb3 Ne7 14. Bd2 Bf5 15. Bxf5 Qxf5 16. Re2 Rab8 17. Rae1 Ng6 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.05"]
[Round "1.8"]
[White "Duda, Jan-Krzysztof"]
[Black "Nepomniachtchi, Ian"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2734"]
[BlackElo "2776"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,87,0,0,0,0,-20,-16,-20,0,-5,0,0,-17,-15,-5,-21,0,-31,2,2,23,24,22,20,16,12,14,12,28,16,77,49,41,52,228,222,235,236,263,212,231,230,231,226,220,224,237,227,230,238,235,224,266,265,368,347,364,293,290,285,277,284,374,354,377,377,558,470,616,608,685,706,734,714,652,639]} 1. c4 e5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nb6 6. Nf3 Nc6 7. a3 Be7 8. b4 {A29: English Opening: Four Knights Variation with 4 g3} O-O 9. e3 $146 ({Predecessor:} 9. d3 Re8 10. O-O Bf8 11. Bb2 a5 12. b5 Nd4 13. Nd2 c6 14. bxc6 Nxc6 15. Nc4 Be6 16. Nxb6 Qxb6 17. Rb1 Rad8 18. Ba1 Qc7 19. Qa4 Bd7 20. Qc4 Qc8 21. Bd5 {1-0 (45) Van Wely,L (2695)-Vachier Lagrave,M (2796) chess.com INT 2017}) 9... a6 10. Qc2 {The position is equal.} Be6 11. O-O Bc4 {Black wants to play ...Bd3.} 12. Rd1 $1 Bd3 13. Qb2 Qd7 14. Ne1 Bg6 15. d3 Rad8 16. Ne4 Nd5 (16... Nc4 {feels hotter.} 17. Qb3 Bh5 18. f3 Nb6 19. Nc5 Qc8) 17. Nc5 Bxc5 18. bxc5 Rb8 19. Qb3 Rfd8 20. Bb2 Nf6 21. Rac1 Qe7 (21... Bf5 $11) 22. Qc3 Bh5 23. Rd2 e4 $2 (23... Nd5 $14 24. Qc4 Na5) 24. Bxe4 $1 $18 Rd7 25. Bf5 Rd5 26. e4 Rxf5 27. exf5 Rd8 28. Qc4 Nd5 29. Qe4 Qg5 30. f4 Qh6 31. h3 {aiming for g4.} f6 32. Ng2 Bf7 33. Kh2 Nde7 34. g4 Nd5 35. Re2 Re8 {[#]} 36. Qf3 $1 {Rxe8+ is the strong threat.} Rxe2 37. Qxe2 g6 38. fxg6 hxg6 39. Kg3 Nd8 (39... Qh8 $142 40. Qe4 Nde7) 40. Qe4 {White is clearly winning.} c6 {[#]} 41. Bxf6 $1 {[%mdl 64] Deflection, Decoy} Nxf6 42. Qe7 $1 {[%csl LRd8,LRf6][%mdl 64] Double Attack} Nh5+ 43. gxh5 Ne6 44. hxg6 {Accuracy: White = 83%, Black = 49%.} 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.07"]
[Round "1.8"]
[White "Dubov, Daniil"]
[Black "Radjabov, Teimour"]
[Result "1/2-1/2"]
[ECO "E17"]
[WhiteElo "2699"]
[BlackElo "2758"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,115,11,4,16,8,95,96,110,116,116,108,109,108,112,108,106,101,98,89,108,108,105,88,88,88,85,86,105,107,116,97,115,71,77,37,37,0,0,0,0,0,0,-7,0,0,0,0,0,0,0,0,0,-69,-64,-118,-122,-161,-149,-226,-171,-334,-272,-384,-391,-357,-308,-290,-256,-419,-400,-466,-445,-450,-454,-747,-745,-663,-658,-2362,-1883,-1816,-1730,-1479,-1262,-791,-1048,-845,-698,-12848,-12849,-12850,-29976,-12851,-27999,-12851,-27999,-12851,-27999,-12851,-29985,-12851,-27999,-12851,0,0]} 1. d4 Nf6 2. Nf3 e6 3. c4 b6 4. g3 Bb7 5. Bg2 Be7 6. O-O O-O 7. d5 Na6 {[%cal Re6d5] E17: Queen's Indian: 4 g3 Bb7 5 Bg2 Be7} 8. Nd4 {And now d6! would win.} (8. Nc3 Bb4 9. Bd2 Re8 10. dxe6 dxe6 11. Qc2 Nc5 12. Rad1 Qe7 13. a3 Bxc3 14. Bxc3 Be4 15. Qc1 a5 16. b4 axb4 17. axb4 {1-0 (34) Mamedyarov,S (2764)-Rapport,R (2747) Saint Louis 2019}) 8... Rb8 $146 (8... exd5 $11 {remains equal.} 9. Nc3 c6) ({Predecessor:} 8... Qc8 9. e4 c5 10. Nb5 d6 11. N1c3 e5 12. f4 Nd7 13. Bh3 Qd8 14. Qh5 Nab8 15. Bd2 {1-0 (43) Khismatullin,D (2654)-Riazantsev,A (2646) Khanty-Mansiysk 2015}) 9. e4 $1 $16 e5 {White is better.} 10. Nf5 d6 11. Nc3 Bc8 12. Nxe7+ Qxe7 13. a3 Nc5 14. b4 Ncd7 15. Ra2 Ra8 16. f4 a5 17. f5 axb4 18. axb4 Rxa2 19. Nxa2 Ba6 20. Qd3 Ra8 21. Nc3 Bb7 22. Bb2 c6 23. h3 cxd5 24. cxd5 Ba6 25. b5 Nc5 26. Qe3 Bc8 27. g4 Ne8 28. g5 f6 29. h4 Bd7 30. Rf2 Nc7 31. Bf1 Ra5 {[%cal Rd7b5]} 32. Rg2 (32. Bc1 $1 $11) 32... Nxb5 $15 33. Bxb5 (33. Ne2 $1 $15) 33... Bxb5 $17 34. h5 Be8 35. Bc1 (35. gxf6 $17 {might work better.} Qxf6 36. h6) 35... b5 ({But not} 35... Bxh5 36. Rb2) 36. Kh2 $2 (36. gxf6 Qxf6 37. h6) 36... b4 ({Inferior is} 36... Bxh5 37. Qh3 $11) 37. Nd1 (37. Na2 $142) 37... Bxh5 38. Nf2 Ra2 39. Qh3 {Strongly threatening gxf6.} g6 40. Qxh5 $2 (40. gxf6 {is a better defense.} Qxf6 41. Bg5) 40... Rxf2 $1 $19 41. fxg6 {gxf6 would kill now.} Rxg2+ 42. Kxg2 {Intending gxf6 and mate.} Nxe4 43. gxh7+ (43. Kf3 $142 f5 44. Qh6) 43... Qxh7 44. Qe8+ Kg7 45. gxf6+ Nxf6 46. Qe7+ {[#]} Kg6 $1 47. Qxd6 {[#]} Qh5 $1 48. Qc5 Qe2+ 49. Kg1 Qd1+ 50. Kg2 Qxd5+ 51. Qxd5 Nxd5 {[%mdl 4096] Endgame KB-KN} 52. Kf3 Kf5 53. Bb2 e4+ 54. Ke2 Kf4 55. Bd4 e3 56. Kd3 Kf3 57. Bc5 b3 $2 {[#]} ({Better is} 57... e2 $19 58. Kd2 b3) 58. Bxe3 $1 {[%mdl 512] Accuracy: White = 39%, Black = 65%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.08"]
[Round "2.1"]
[White "Grischuk, Alexander"]
[Black "Navara, David"]
[Result "1/2-1/2"]
[ECO "E05"]
[WhiteElo "2759"]
[BlackElo "2717"]
[Annotator "TA"]
[PlyCount "78"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,78,7,11,8,8,8,10,6,8,8,0,6,7,11,17,15,33,25,23,28,41,39,41,29,43,26,35,24,27,9,23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 a6 8. a4 Bd7 9. Qxc4 Bc6 10. Bg5 Nbd7 11. Nc3 h6 12. Bxf6 {E05: Open Catalan: 5 Nf3 Be7} Nxf6 13. Rfd1 (13. b4 Qd6 14. b5 axb5 15. axb5 Bd5 16. Nxd5 Nxd5 17. e3 Qb4 18. Qxb4 Bxb4 19. Ne5 Bd6 20. Nc4 Bb4 21. Rfc1 {½-½ (33) Sargissian,G (2689)-Wang,H (2714) chess.com INT 2019}) 13... Bd5 14. Qd3 Bxf3 15. Bxf3 c6 16. e3 Qa5 17. Nb1 Bb4 $146 ({Predecessor:} 17... Qc7 18. Nd2 e5 19. dxe5 Qxe5 20. Qc3 Qc7 21. Nc4 a5 22. Kg2 Rfe8 23. Qe5 Qxe5 24. Nxe5 Rad8 25. Rxd8 Rxd8 26. Rd1 {½-½ (26) Brandhorst,W (2284)-Lefebvre,A (2355) ICCF email 2016}) 18. Na3 Bxa3 19. Qxa3 Rad8 20. Kg2 Rfe8 21. b4 Qf5 22. h3 h5 23. h4 e5 24. dxe5 Qxe5 25. Qb3 Ne4 26. Rxd8 Rxd8 {The position is equal.} 27. Rd1 Rd2 28. Rxd2 Nxd2 29. Qd3 Nxf3 30. Kxf3 $11 {[%mdl 4096] Endgame KQ-KQ} Qf6+ 31. Kg2 c5 32. bxc5 {[#] Black must now prevent Qd7.} Qc6+ 33. Kg1 Qxc5 34. Qd8+ Kh7 35. a5 Qc1+ 36. Kg2 Qc6+ 37. Kg1 Qc1+ 38. Kg2 Qc6+ 39. Kg1 Qc1+ {Accuracy: White = 69%, Black = 82%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.08"]
[Round "2.1"]
[White "Yu, Yangyi"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2753"]
[BlackElo "2734"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,89,24,17,23,33,20,24,32,29,29,66,63,52,65,47,62,50,37,52,39,54,54,60,53,59,52,67,58,87,69,94,85,87,83,80,83,97,87,94,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Re1 Bf5 10. Ng5 {[%cal Rd3e4] C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} (10. Qb3 Qd7 11. Nc3 Nxc3 12. Bxf5 Qxf5 13. bxc3 b6 14. Bg5 dxc4 15. Qxc4 b5 16. Qb3 Nd7 17. Be7 Bxe7 18. Rxe7 {½-½ (30) Naiditsch,A (2695)-Wang,H (2726) China 2019}) 10... Re8 11. Bxe4 dxe4 12. Nc3 {White has an edge.} h6 $146 ({Predecessor:} 12... Nd7 13. c5 Bc7 14. Qb3 Re7 15. Ngxe4 h6 16. Bd2 b6 17. Nd6 Bxd6 18. cxd6 Rxe1+ 19. Rxe1 Qf6 20. Re7 {½-½ (20) Repp,H (2512)-Blanco Gramajo,C (2552) ICCF email 2011}) 13. Ngxe4 Bxe4 14. Nxe4 {[#] Black must now prevent Bxh6!} Bxh2+ $1 15. Kf1 f5 $1 {[%cal Rf5e4]} 16. Nc5 {[%cal Be4c5,Bc5d3,Bd3f4,Bf4e6][%mdl 32]} b6 $1 {[%cal Rb6c5]} 17. Nd3 Bc7 18. Bf4 Bxf4 19. Nxf4 Na6 20. Rxe8+ Qxe8 21. Qd3 Qf7 22. Re1 g5 23. Ne6 {Hoping for Qa3.} Re8 $1 {[%cal Re8e6]} 24. d5 cxd5 25. cxd5 Nc7 {[%cal Rc7e6]} 26. Qc4 Nxe6 27. dxe6 $16 {[%mdl 4096] Endgame KQR-KQR} Qe7 28. Re5 ({White should try} 28. Qb5 $16) 28... Qd6 $1 $36 {[%cal Rd6e5][%mdl 2048] The position is equal. Black has some pressure.} 29. Re1 Kg7 30. Kg1 Kf6 {[%cal Re8e6]} 31. Qc3+ Kg6 32. Qe3 Kf6 {[%cal Re8e6]} 33. Qh3 Kg6 34. g4 fxg4 35. Qxg4 Qf4 36. Qd1 {White wants to play e7.} h5 37. Qd3+ Qf5 38. Re4 Re7 39. f3 Kh6 40. Qd8 Qxf3 41. Qxe7 {[#] Strongly threatening Qb4.} Qg3+ 42. Kh1 {Threatening mate with Qf6+.} Qh3+ 43. Kg1 {Qd6 would kill now.} Qg3+ 44. Kh1 {Intending Qf6+ and mate.} Qh3+ 45. Kg1 {Accuracy: White = 88%, Black = 86%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.08"]
[Round "2.1"]
[White "Topalov, Veselin"]
[Black "Vachier-Lagrave, Maxime"]
[Result "0-1"]
[ECO "E61"]
[WhiteElo "2736"]
[BlackElo "2774"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,88,31,20,-17,0,0,0,0,0,0,0,3,24,0,0,-9,9,2,25,8,0,13,5,11,25,12,15,16,16,0,0,0,0,4,31,31,27,29,35,0,0,0,0,-88,-65,-107,-74,-75,-54,-48,0,0,0,0,55,0,0,-161,0,-313,-316,-701,-458,-465,-255,-262,-281,-511,-519,-510,-486,-1945,-1965,-1983,-1949,-1439,-1146]} 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. e3 O-O 5. Be2 c5 6. d5 d6 7. Nc3 e6 8. Nd2 {E61: King's Indian: Early deviations for White, including Smyslov System} (8. O-O exd5 9. cxd5 Na6 10. Nd2 Re8 11. e4 Rb8 12. a4 Nb4 13. f3 Nd7 14. Kh1 a6 15. a5 b5 16. axb6 Nxb6 {½-½ (43) Caruana,F (2816)-Vachier Lagrave,M (2789) Leuven 2018}) 8... Na6 9. O-O Re8 10. e4 {The position is equal.} Nc7 11. a4 b6 12. Re1 Na6 $146 ({Predecessor:} 12... a6 13. a5 b5 14. dxe6 Rxe6 15. Nb3 Nxe4 16. Nxe4 Rxe4 17. cxb5 Nxb5 18. Nxc5 Rxe2 19. Rxe2 {0-1 (43) Fedoseev,V (2658)-Shankland,S (2666) Saint Louis 2017}) 13. h3 Nb4 14. Ra3 exd5 15. cxd5 a6 16. Bf1 Nd7 17. Na2 Ra7 18. Nc4 Ne5 19. Nxe5 Bxe5 20. Nxb4 cxb4 21. Rf3 Bd7 22. b3 b5 23. Be3 Ra8 24. axb5 axb5 25. Bd4 Ra2 26. Re2 (26. Bxe5 {keeps more tension.} dxe5 27. Rd3 Qe7 28. Re2 Ra3 29. Rc2) 26... Rxe2 $1 27. Bxe2 Qe7 28. Re3 (28. Bf1 $11) 28... Bf4 $17 29. Bf3 Bxe3 30. Bxe3 Rc8 31. Qd4 Qe5 32. Qa7 $1 {[%cal Ra7d7]} Be8 33. g3 Rc3 ({Better is} 33... h5 $11) 34. Bd4 ({White should try} 34. Bf4 $1 $14 Qg7 35. Be2) 34... Qg5 $1 $11 35. Be2 $2 {[#]} (35. h4 $1 $11 Rc1+ 36. Kg2) 35... Qd2 $2 (35... Rxb3 $19 {...Qd2 is the strong threat.} 36. Qb8 Rb1+ 37. Kg2 Qe7) 36. Bf1 $2 {[%mdl 8192]} (36. Kh2 $1 $11) 36... Rxb3 $19 37. Kg2 $2 (37. Be3 Rxe3 38. Qxe3 Qxe3 39. fxe3) 37... Ra3 38. Qb6 b3 {Played: Ra3-a6} 0-1

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.08"]
[Round "2.1"]
[White "Dubov, Daniil"]
[Black "Svidler, Peter"]
[Result "1/2-1/2"]
[ECO "D87"]
[WhiteElo "2699"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "50"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,45,47,42,17,8,5,33,56,47,60,62,67,76,75,62,69,66,16,6,14]} 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O Qc7 11. Bf4 Qd8 12. Be3 Qc7 13. Rc1 Rd8 14. Bf4 Qd7 15. d5 {D87: Exchange Grünfeld: Classical Line: Variations without ...cxd4} (15. dxc5 Qe8 16. Bd5 Ne5 17. Nd4 e6 18. Bb3 Qe7 19. Be3 b6 20. cxb6 Ba6 21. c4 Qb7 22. Qe2 axb6 23. Nb5 {½-½ (40) Grischuk,A (2746)-Nepomniachtchi,I (2711) Moscow 2011}) 15... Na5 16. Bd3 e6 17. c4 {[%cal Bc3c4,Bc4b5][%mdl 32] White is slightly better.} b5 18. cxb5 exd5 19. Qa4 Nc4 20. Bxc4 dxc4 21. Qxc4 Qb7 22. Be3 Be6 23. Qxc5 {Predecessor:} Qxe4 $146 24. Nf4 Bxa2 25. Rfe1 Qb7 {½-½ (23) Douven,R (2475)-Vanheste,J (2410) Amsterdam 1989} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.09"]
[Round "2.2"]
[White "Vachier-Lagrave, Maxime"]
[Black "Topalov, Veselin"]
[Result "1/2-1/2"]
[ECO "C01"]
[WhiteElo "2774"]
[BlackElo "2736"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,52,-2,-4,-2,15,24,25,27,32,32,41,7,28,33,32,22,19,22,18,4,10,3,10,12,24,21,32,22,32,32,32,18,18,29,70,74,148,146,146,146,216,214,189]} 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. c4 Nf6 6. c5 Be7 7. Qa4+ {C01: French: Exchange Variation} c6 8. Bd3 Ne4 $146 ({Predecessor:} 8... O-O 9. O-O Re8 10. Nc3 Nbd7 11. Bf4 Nf8 12. h3 Ne6 13. Bh2 Nh5 14. Rfe1 Nhf4 {1-0 (45) Bacrot,E (2725)-Socko,B (2593) Riadh 2017}) 9. O-O {White has an edge.} O-O 10. Nc3 f5 11. Ne5 Bf6 12. f4 Be6 13. Be3 Qe7 14. Rad1 Nd7 15. Nxe4 fxe4 16. Be2 g6 17. b4 a6 18. Qb3 Kg7 19. Qc3 h5 20. a4 {[%cal Ba2a4,Ba4b5][%mdl 32]} Kh7 21. b5 (21. Qd2 {feels hotter.} Bg7 22. Ra1 Qe8 23. Rfc1 Bh6 24. Rcb1) 21... axb5 22. axb5 Bxe5 23. fxe5 Bg4 (23... Ra2 $142 24. Rd2 Ra7) 24. Bxg4 $16 {White is clearly better.} hxg4 25. Qb2 Rxf1+ (25... Kg7 $16 26. bxc6 bxc6) 26. Rxf1 $18 {Black must now prevent bxc6.} Rf8 {Accuracy: White = 60%, Black = 35%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.09"]
[Round "2.2"]
[White "Duda, Jan-Krzysztof"]
[Black "Yu, Yangyi"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "2734"]
[BlackElo "2753"]
[Annotator "RC"]
[PlyCount "71"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "40/5400+30:1800+30"]

1. c4 c6 2. Nf3 d5 3. e3 Nf6 4. Nc3 g6 5. d4 Bg7 6. Be2 O-O 7. O-O Ne4 8. Nxe4 dxe4 9. Nd2 c5 10. dxc5 f5 11. Rb1 a5 12. a3 a4 13. b4 axb3 14. Nxb3 Qxd1 15. Rxd1 Nd7 16. Kf1 h5 17. Bd2 Rxa3 18. Na5 Nxc5 19. Bb4 Ra2 20. Bxc5 Rxa5 21. Bxe7 Rf7 22. Bb4 Ra8 23. Rd8+ Kh7 24. Bd6 Rd7 25. Rxd7 Bxd7 26. g4 fxg4 27. Rxb7 Bc8 28. Re7 Kh6 29. Bf4+ g5 30. Bxg5+ Kxg5 31. Rxg7+ Kh4 32. Rg8 Kh3 33. Bxg4+ Kh4 34. Rxc8 Ra1+ 35. Kg2 hxg4 36. Re8 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.09"]
[Round "2.2"]
[White "Svidler, Peter"]
[Black "Dubov, Daniil"]
[Result "1/2-1/2"]
[ECO "B31"]
[WhiteElo "2729"]
[BlackElo "2699"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,41,21,34,11,7,6,24,12,9,9,17,13,7,16,30,27,9,4,6,4,8,9,9,9,17,21,35,0,0,0]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. Bxc6 bxc6 5. O-O Bg7 6. Re1 Nh6 7. c3 O-O 8. h3 {B31: Sicilian: 2...Nc6 3 Bb5 g6} f5 9. e5 Nf7 10. d4 {White has an edge.} cxd4 11. cxd4 Bb7 12. Na3 c5 13. dxc5 {[#]} Qa5 $146 ({Predecessor:} 13... Rc8 14. Be3 Bxf3 15. Qxf3 Nxe5 {½-½ (29) Wang,H (2702)-Gelfand,B (2729) Tbilisi 2017}) 14. Be3 Qb4 15. Qd4 Qxd4 16. Bxd4 Bxf3 17. gxf3 Ng5 18. Kg2 Ne6 19. Rad1 Rfc8 20. b4 Rab8 $1 {[%cal Rb8b4]} 21. Nc2 {Accuracy: White = 48%, Black = 85%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.09"]
[Round "2.2"]
[White "Navara, David"]
[Black "Grischuk, Alexander"]
[Result "0-1"]
[ECO "D38"]
[WhiteElo "2717"]
[BlackElo "2759"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,72,18,14,10,19,19,20,8,8,4,12,9,8,22,27,9,7,7,7,0,21,14,20,5,18,23,30,0,0,-6,-13,-39,-39,-169,-177,-156,-166,-164,-170,-156,-162,-490,-502,-591,-568,-535,-560,-702,-681,-731,-725,-806,-715,-679,-655,-783,-691,-29986,-2876,-29987,-29988,-29990,-29991]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ Nc6 6. e3 O-O 7. Qc2 {D38: Queen's Gambit Declined: Ragozin Defence (4 Nf3 Bb4)} Re8 8. Bd2 Bf8 9. a3 {The position is equal.} e5 10. dxe5 Nxe5 11. cxd5 Nxf3+ 12. gxf3 Nxd5 13. Bd3 Nxc3 14. Bxc3 Qh4 $1 {[#]} 15. O-O-O $146 g6 16. Be4 {Black must now prevent Qa4.} Bg7 17. Qa4 Qe7 18. Bxg7 Kxg7 19. h4 Qc5+ 20. Kb1 Bf5 21. h5 b5 22. Qa6 (22. h6+ $15 Kf8 23. Qd4 Qxd4 24. Rxd4) 22... Rxe4 $19 ({Inferior is} 22... Bxe4+ 23. fxe4 Qb6 24. Qxb6 $11) 23. h6+ Kf8 $1 24. fxe4 Bxe4+ {[%mdl 64] Double Attack} 25. Ka1 {Hoping for Qf6!} Bxh1 26. Qf6 $2 (26. Rxh1 Qb6 27. Qxb6 axb6 28. Kb1) 26... Bc6 27. e4 {intending e5.} b4 28. axb4 Qb5 {( -> ...Qa4+)} 29. b3 {and the idea Rc1 leaves White hopeful.} a5 {[%cal Ba7a5,Ba5b4][%mdl 32]} 30. Kb2 axb4 31. Rd2 Qc5 32. Rd3 Re8 33. Qg7+ Ke7 34. Rf3 Kd8 (34... Bxe4 $142 35. Rxf7+ Kd8 36. Rd7+ Kc8 37. Rxc7+ Qxc7 38. Qxc7+ Kxc7 39. Kc1 Rf8 40. Kd2 Rf3 41. Ke2 Rxb3 42. Kf1 {[#]} Rf3 $1 {[%mdl 512]} 43. Kg2 b3 44. Kg1 b2 45. Kg2 b1=Q 46. Kh2 Qc2 $1 {[%mdl 512]} 47. Kh1 Rh3+ $1 {[%mdl 576] Double Attack, Discovered Attack (Double check)} 48. Kg1 Rh1#) 35. Rxf7 Bxe4 36. Qf6+ Kc8 {Accuracy: White = 51%, Black = 80%.} 0-1

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.10"]
[Round "2.3"]
[White "Dubov, Daniil"]
[Black "Svidler, Peter"]
[Result "1/2-1/2"]
[ECO "D87"]
[WhiteElo "2699"]
[BlackElo "2729"]
[Annotator "RC"]
[PlyCount "88"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "1500+10"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8. Ne2 Nc6 9. Be3 O-O 10. O-O b6 11. h4 e6 12. h5 Qh4 13. hxg6 hxg6 14. f3 cxd4 15. cxd4 Rd8 16. Qd2 Bb7 17. Rac1 Be5 18. f4 Bg7 19. Rf3 Rac8 20. Rh3 Qg4 21. Qe1 Nxd4 22. Nxd4 Bxd4 23. Bxd4 Rxd4 24. Rh4 Rxe4 25. Rxg4 Rxe1+ 26. Rxe1 Rxc4 27. Re3 Bd5 28. a3 Kg7 29. Rh4 b5 30. g3 a5 31. Rh2 Rc1+ 32. Kf2 b4 33. axb4 axb4 34. g4 g5 35. fxg5 Kg6 36. Re5 Rc2+ 37. Kg3 Rxh2 38. Kxh2 b3 39. Re2 Bc4 40. Rd2 e5 41. Kg3 e4 42. Rd4 b2 43. Rd6+ Kxg5 44. Rb6 Be2 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.10"]
[Round "2.4"]
[White "Svidler, Peter"]
[Black "Dubov, Daniil"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2729"]
[BlackElo "2699"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,91,31,28,63,45,37,23,35,26,60,56,62,50,77,44,63,70,66,71,87,83,72,47,58,76,75,74,45,60,135,116,168,156,166,145,96,117,81,49,54,60,60,64,44,34,37,38,66,26,95,40,54,52,41,0,0,0,0,0,0,0,0,0,0,0,435,346,377,341,339,0,77,0,0,0,8,0,0,0,29,0]} 1. c4 e6 2. Nc3 d5 3. d4 Nf6 4. cxd5 exd5 5. Bg5 Bb4 6. e3 h6 7. Bh4 g5 {D35: Queen's Gambit Declined: Exchange Variation} 8. Bg3 Ne4 9. Qc2 (9. Rc1 h5 10. f3 Nxg3 11. hxg3 c6 12. Bd3 Be6 13. Nge2 Nd7 14. Kf2 Bd6 15. Qc2 {1-0 (55) Nepomniachtchi,I (2763)-Riazantsev,A (2649) Moscow 2018}) 9... h5 10. f3 Bxc3+ 11. bxc3 Nxg3 12. hxg3 Qd6 13. Kf2 $146 ({Predecessor:} 13. g4 h4 14. Nh3 Qe7 15. Kf2 {1-0 (29) Ghazizadeh,A (1865)-Vagoohian,R (1770) Teheran 2014}) 13... Nc6 14. Rb1 b6 15. c4 dxc4 16. Bxc4 Bd7 17. Ne2 O-O-O 18. Bxf7 h4 19. gxh4 gxh4 20. Qg6 Qf8 ({Better is} 20... Qe7 $1 $14) 21. Be6 Ne7 (21... Bxe6 $16 22. Qxe6+ {[%mdl 64] Double Attack} Kb7) 22. Bxd7+ $18 Rxd7 23. Qe4 {[%cal Re4a8]} Nd5 24. Nf4 Qa3 25. Rbc1 {Strongly threatening Rc2.} Kb8 26. Nxd5 Qxa2+ 27. Rc2 Qxd5 28. Rxh4 Rxh4 29. Qxh4 $14 {[%mdl 4096] Endgame KQR-KQR} a5 30. Qe4 Qg8 (30... Qxe4 $11 {keeps the balance.} 31. fxe4 Kb7) 31. Qc6 (31. f4 $16) 31... Rg7 32. g4 Qh8 $1 33. Kg3 Rh7 $1 34. g5 Rh3+ 35. Kf4 Qh4+ 36. Kf5 Qh7+ 37. g6 Qe7 {( -> ...Rh5+)} 38. Rg2 Qxe3 $2 {[%mdl 8192]} (38... Qf8+ $11 {and Black has nothing to worry.} 39. Kg4 Qc8+ 40. Kf4 Qf8+ 41. Kg4 Qc8+ 42. Kf4 Qf8+ 43. Kg4) 39. f4 $1 $18 {aiming for g7.} (39. g7 Rxf3+ 40. Kg6 Qd3+ 41. Kh6 Rh3+ 42. Kg5 Qh7 $19) 39... Rh4 40. Qe4 Qh3+ {[#]} 41. Kf6 $2 (41. Kg5 $1 $18) 41... Qd7 {[#]} (41... Qc8 $1 $11 {remains equal.}) 42. g7 ({White should try} 42. Re2 $1 $16 {Qe8+ is the strong threat.} Qd6+ 43. Kg5) 42... Qd6+ $11 43. Kf5 Qd7+ 44. Kf6 Qd6+ 45. Kf5 Qd7+ 46. Kf6 {Accuracy: White = 55%, Black = 65%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.10"]
[Round "2.5"]
[White "Svidler, Peter"]
[Black "Dubov, Daniil"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2729"]
[BlackElo "2699"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,80,10,-11,-9,-19,13,-37,-15,-12,-18,-25,-28,-20,-29,-21,33,9,34,-24,-29,-30,-11,-14,-33,-83,-66,-83,-85,-169,-167,-189,-164,-208,-206,-221,-214,-251,-239,-240,-240,-249,-248,-237,-252,-243,-249,-240,-238,-257,-268,-267,-276,-356,-349,-348,-338,-310,-262,-283,-268,-273,-276,-269,-268,-268,-268,-268,-258,-424,-291,-501,-468]} 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 4. d4 Nf6 5. O-O O-O 6. Be3 Nc6 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (6... Nbd7 7. h3 b6 8. c4 Bb7 9. Na3 e6 {½-½ (9) Epishin,V (2568)-Chigaev,M (2634) Metz 2019}) 7. h3 Re8 8. Bf4 $146 ({Predecessor:} 8. c3 Bf5 9. Nbd2 e5 10. dxe5 Nxe5 11. Nxe5 Rxe5 12. Bd4 Re8 13. g4 Bd7 14. e3 h5 15. g5 Ne4 16. Nxe4 dxe4 17. Bxg7 Kxg7 18. Qd4+ {½-½ (18) Daneshvar,B (2398)-Chakravarthi,R (2380) Novi Sad 2018}) 8... Nh5 {Black is slightly better.} 9. Bg5 h6 10. Bc1 Nf6 11. Nbd2 e5 $36 {[%mdl 2048] Black is more active.} 12. dxe5 Ne4 (12... Nxe5 $11 13. Nxe5 Rxe5) 13. c4 $14 Nxd2 14. Qxd2 ({White should play} 14. Nxd2 $14 dxc4 15. Nxc4) 14... dxc4 $11 15. Qc3 Be6 16. Be3 Qe7 17. Rfd1 Rad8 18. Rac1 b5 19. a3 (19. h4 $17) 19... Bd5 $19 20. Qc2 a6 21. Bf4 Bxf3 (21... Nxe5 22. Nxe5 Bxg2 23. Rxd8 $17) 22. Bxf3 {[#]} Nd4 $1 {[%cal Rd4c2]} ({Don't take} 22... Nxe5 23. Bg2 $17) 23. Qe4 Bxe5 24. Bxe5 Qxe5 25. Qxe5 Nxf3+ ({Resist} 25... Rxe5 26. Kg2 $17) 26. exf3 Rxd1+ (26... Rxe5 $2 {perishes.} 27. Rxd8+ Kg7 28. Rd7 $18) 27. Rxd1 Rxe5 {[%mdl 4096] Endgame KR-KR} 28. Kf1 Kg7 29. Rd8 a5 30. f4 Rc5 31. Ke2 c3 32. bxc3 Rxc3 33. a4 bxa4 34. Rd4 a3 {[%cal Ba4a3,Ba3a2][%mdl 32]} 35. Ra4 Rc2+ 36. Ke3 a2 37. Rxa5 Kf6 38. g4 Ke6 39. h4 $2 {[#]} (39. f3) 39... Kd6 40. f5 $2 (40. f3) 40... gxf5 {Accuracy: White = 35%, Black = 71%.} 0-1

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.10"]
[Round "2.6"]
[White "Dubov, Daniil"]
[Black "Svidler, Peter"]
[Result "1/2-1/2"]
[ECO "A81"]
[WhiteElo "2699"]
[BlackElo "2729"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,35,41,33,31,34,0,0,0,0,-4,89,97,103,54,59,51,49,56,165,179,163,157,660,653]} 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nd2 Bg7 5. e4 fxe4 6. Nxe4 Nxe4 7. Bxe4 d5 8. Bg2 {A81: Dutch Defence: 2 g3} Nc6 9. c3 (9. Ne2 Bg4 10. f3 Bf5 11. O-O Qd6 12. c3 e5 13. Be3 O-O-O 14. Qd2 h5 15. Rae1 h4 {0-1 (26) Girya,O (2489)-Vidit,S (2718) Wijk aan Zee 2018}) 9... e5 10. dxe5 {The position is equal.} Nxe5 11. Nf3 Nc4 $146 (11... Bg4 $11 12. h3 Bxf3 13. Bxf3 c6) ({Predecessor:} 11... Bg4 12. h3 Bxf3 13. Bxf3 Nxf3+ 14. Qxf3 {1-0 (57) Mohr,G (2523)-Zelic,M (2272) Medulin 2002}) 12. O-O O-O 13. b3 {[#] Black must now prevent Bg5.} Nb6 14. Bg5 Qd6 15. Re1 $36 {[%mdl 2048] aiming for Be7. White has the initiative.} Bxc3 (15... Bg4 $14) 16. Be7 $18 {[%mdl 64] Double Attack} Qd7 17. Bxf8 Bxe1 $2 {[#]} (17... Kxf8 $16 18. Re3 Bf6) 18. Qd4 $1 {[%mdl 32768] Accuracy: White = 81%, Black = 39%. . An unexpected result.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.11"]
[Round "3.1"]
[White "Vachier-Lagrave, Maxime"]
[Black "Grischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "C78"]
[WhiteElo "2774"]
[BlackElo "2759"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,53,24,30,-16,0,0,0,-5,0,0,4,11,8,12,10,9,16,10,6,10,16,-1,11,-19,20,-12,0,0,6,-13,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O b5 6. Bb3 Bc5 7. c3 d6 8. a4 Rb8 9. d4 Bb6 10. axb5 axb5 11. Na3 O-O 12. Nxb5 Bg4 13. Be3 {C78: Ruy Lopez: Archangelsk and Möller Defences} (13. Bc2 exd4 14. Nbxd4 Nxd4 15. cxd4 Bxf3 16. gxf3 Nh5 17. f4 Qh4 18. Ra3 d5 19. exd5 f5 20. Qf3 Rbd8 21. Rc3 {1-0 (60) Harikrishna,P (2733)-Erdos,V (2624) Antalya 2017}) 13... exd4 {The position is equal.} 14. cxd4 Nxe4 15. h3 Bf5 16. Nc3 {[#]} h6 $146 ({Predecessor:} 16... Nf6 17. Re1 h6 18. d5 Nb4 19. Bxb6 Rxb6 20. Nd4 Bg6 {½-½ (38) Saulin,D (2375)-Lastin,A (2535) Moscow 1998}) 17. Bd5 Nxc3 18. bxc3 Ne7 19. Bb3 c5 20. Re1 cxd4 21. Nxd4 Bg6 22. Bf4 Bc5 23. Ba4 {[#] Nb3 is the strong threat.} Rb2 24. Qf3 Bxd4 25. cxd4 Nf5 26. Be3 Nxe3 27. Qxe3 {Accuracy: White = 44%, Black = 26%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.11"]
[Round "3.1"]
[White "Duda, Jan-Krzysztof"]
[Black "Dubov, Daniil"]
[Result "1/2-1/2"]
[ECO "E01"]
[WhiteElo "2734"]
[BlackElo "2699"]
[Annotator "TA"]
[PlyCount "57"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,57,22,25,0,0,0,0,0,0,0,0,-4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 c5 3. Nf3 e6 4. g3 d5 5. cxd5 exd5 6. d4 Nc6 7. Bg2 cxd4 8. Nxd4 Bc5 9. Nxc6 bxc6 10. O-O O-O 11. Bg5 h6 12. Bxf6 Qxf6 13. Rc1 {E01: Catalan: Early deviations} Bb6 {The position is equal.} 14. e3 Ba6 15. Re1 Rad8 $146 ({Predecessor:} 15... Rac8 16. Qa4 Bd3 17. Red1 Bg6 18. Rd2 Rfe8 19. Rcd1 Bh5 20. Rc1 Rcd8 {½-½ (20) Sinnett,G (1939)-James,D (2024) Neath 2003}) 16. Qc2 d4 17. Ne4 Qf5 {[#] Strongly threatening ...dxe3.} 18. exd4 Rxd4 19. Nc5 $1 Qxc2 20. Rxc2 Bc4 21. Nb3 Bxb3 22. axb3 Rb4 23. Bxc6 Rxb3 24. Bd5 Rd3 25. Bc4 Rd7 26. Rce2 Rfd8 27. Re8+ Rxe8 28. Rxe8+ Kh7 29. b3 {Accuracy: White = 81%, Black = 90%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.12"]
[Round "3.2"]
[White "Grischuk, Alexander"]
[Black "Vachier-Lagrave, Maxime"]
[Result "1-0"]
[ECO "A17"]
[WhiteElo "2764"]
[BlackElo "2777"]
[Annotator "TA"]
[PlyCount "125"]
[EventDate "2019.11.03"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,125,18,26,8,10,9,20,12,0,0,0,0,0,0,0,5,28,0,23,31,10,0,12,12,27,0,75,81,59,35,33,25,30,37,81,79,68,76,75,69,158,130,141,23,39,25,19,16,18,18,18,18,37,42,44,52,67,38,85,74,141,107,106,72,102,90,90,90,90,67,93,75,106,120,102,107,142,138,149,159,167,159,104,47,114,104,420,431,417,392,408,409,339,388,367,316,291,0,353,0,225,189,481,311,468,468,306,429,468,468,436,354,5281,1323,12835,12834,12820,1997]} 1. Nf3 Nf6 2. c4 c5 3. Nc3 d5 4. cxd5 Nxd5 5. e3 e6 6. Bc4 {A17: English Opening: 1...Nf6 with ...Bb4} Be7 7. O-O O-O 8. Qe2 {The position is equal.} Nc6 9. Rd1 b6 $146 ({Predecessor:} 9... Nb6 10. Bb5 Bd7 11. d4 cxd4 12. exd4 Nb4 13. Bxd7 Qxd7 {½-½ (42) Eljanov,P (2755)-Harikrishna,P (2766) Wijk aan Zee 2017}) 10. d4 {With the idea Nxd5.} Nxc3 11. bxc3 Qc7 12. e4 Rd8 13. Be3 (13. d5 $5 {[%cal Rd5c6]} Na5 14. Bd3 $11) 13... Na5 14. Bd3 Bb7 15. h4 b5 (15... Rac8 {looks sharper.} 16. Rac1 h6 17. Bb1 Kf8 18. Bd3 Kg8) 16. Bxb5 Bxe4 17. dxc5 (17. Ng5 $5 {[%cal Rg5e4]} a6 18. Bxa6 $11 (18. Nxe4 axb5 19. Qxb5 cxd4 $11)) 17... Bxf3 (17... Bd5 $11 {keeps the balance.}) 18. Qxf3 $16 Bxc5 19. Bf4 Qb7 20. Qe2 Qe7 21. h5 Bd6 22. Bxd6 Rxd6 23. Rxd6 Qxd6 24. Rd1 Qc5 (24... Qb6 $1 $14) 25. Rd7 {Black must now prevent Qe4.} Qxc3 26. Qd1 ({White should try} 26. Qe4 $1 $16 {[%cal Re4a8]} Rc8 27. Qf4) 26... h6 27. g3 Rf8 28. Rxa7 Nc6 29. Rd7 Ne5 30. Rd8 Qc7 31. Rxf8+ Kxf8 32. a4 {Hoping for a5!} Ke7 33. Be2 Qc3 34. Qb1 $1 Nc6 (34... Kf6 $142) 35. Qb7+ $1 Kf6 36. Bf1 Na5 37. Qd7 {Threatens to win with Qd8+.} g5 38. hxg6 $1 Kxg6 39. Kg2 Kg7 40. Bb5 Qe5 41. Qd3 Qc5 42. Qf3 Qd4 43. Be8 Qd5 44. Qxd5 exd5 {[%mdl 4096] Endgame KB-KN} 45. Kf3 Kf6 {[#]} 46. Kg4 $1 Ke7 ({Black should play} 46... Ke6 $14) 47. Bb5 Kf6 $2 {[%mdl 8192]} (47... Kd6 $16 {is a better chance.}) 48. Kh5 $18 Kg7 49. Bf1 Nb3 50. Bg2 d4 51. Bf1 Nd2 52. Bd3 {And now a5 would win.} Nb3 53. Bf1 Nd2 $1 {[%cal Rd2f1]} 54. Bd3 {Strongly threatening a5.} Nb3 $1 55. Bb5 f6 $2 (55... Kf8 56. Kxh6 Ke7) 56. Bf1 Na5 57. Ba6 Nb3 58. Bb5 Na5 59. Kg4 Nb7 60. Kf4 Nc5 $2 (60... Nd6 61. Bc6 Nc4) 61. a5 {White is clearly winning.} d3 62. Ke3 d2 {[#]} 63. Be2 $1 {Accuracy: White = 75%, Black = 38%.} 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.12"]
[Round "3.2"]
[White "Dubov, Daniil"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "D23"]
[WhiteElo "2676"]
[BlackElo "2748"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2019.11.03"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,65,13,9,10,36,0,0,0,6,0,24,8,20,8,39,0,7,6,6,9,10,4,0,3,4,6,12,14,14,0,0,0,16,10,17,28,27,25,20,31,39,0,0,0,8,8,27,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qb3 dxc4 5. Qxc4 Bf5 6. g3 e6 7. Bg2 Be7 8. O-O {D23: Queen's Gambit Accepted: 3 Nf3 Nf6 sidelines} O-O 9. Qb3 (9. Nc3 Nbd7 10. Re1 Rc8 11. e4 Bg4 12. Qb3 b5 13. h3 Bxf3 14. Bxf3 e5 15. dxe5 Nxe5 16. Bg2 Bc5 17. Rd1 Qe7 {½-½ (42) Mamedyarov,S (2820)-Borisek,J (2578) Batumi 2018}) 9... Qb6 10. Nbd2 Nbd7 11. Nc4 Qxb3 12. axb3 Be4 13. Bf4 c5 $146 ({Predecessor:} 13... Rfc8 14. Nd6 Bxd6 15. Bxd6 c5 {½-½ (49) Pert,N (2475)-Haznedaroglu,K (2345) Patras 2001}) 14. Rfc1 Rfc8 15. Nd6 Bxd6 $1 16. Bxd6 {[%cal Rd4c5]} cxd4 17. Nxd4 Bxg2 18. Kxg2 a6 19. f3 Ne8 20. Bb4 g6 21. e4 (21. Rd1 {keeps more tension.} Nef6 22. Rd2 Nc5 23. e4 e5 24. Bxc5 Rxc5 25. Nc2) 21... e5 22. Ne2 Rxc1 23. Rxc1 f6 24. Rd1 Nf8 25. f4 exf4 26. Nxf4 Rc8 27. Kh3 g5 28. Nh5 Ne6 29. Rf1 Nc5 30. Nxf6+ Nxf6 {The position is equal.} 31. Rxf6 Nxe4 32. Re6 Nf2+ 33. Kg2 {Accuracy: White = 60%, Black = 48%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.13"]
[Round "3.3"]
[White "Duda, Jan-Krzysztof"]
[Black "Dubov, Daniil"]
[Result "0-1"]
[ECO "B32"]
[WhiteElo "2734"]
[BlackElo "2699"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,108,23,24,43,22,37,20,26,0,0,0,0,-11,-12,-25,0,0,0,0,0,-16,-19,-13,-16,-23,0,0,0,0,0,0,0,0,0,0,49,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-32,0,0,0,-188,-183,-184,-96,-187,-182,-152,0,-112,-112,-189,-164,-151,-152,-464,-402,-618,-606,-619,-623,-641,-637,-556,-588,-12837,-12838,-12838,-12839,-12839,-12839,-12843,-12843,-12843,-12844,-12844,-12843,-12844,-12844,-12845,-12844,-12845,-12845]} 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. N1c3 a6 7. Na3 Be6 8. Nc4 Rb8 {B32: Sicilian: Löwenthal and Kalashnikov Variations} 9. a4 Nf6 10. Bg5 Nb4 {The position is equal.} (10... h6 11. Bxf6 Qxf6 12. Nd5 Bxd5 13. exd5 Na7 14. Be2 Be7 15. O-O Bd8 16. Qd2 O-O {½-½ (48) Brkic,A (2563)-Mamedov,R (2703) Skopje 2018}) 11. a5 (11. Nd5 {is interesting.} Nbxd5 12. exd5 Bf5 13. Bd3 Bxd3 14. Bxf6 Qxf6 15. cxd3 Qg6 16. O-O) 11... d5 12. exd5 Nbxd5 13. Nxd5 Qxd5 14. Bxf6 gxf6 15. Qxd5 Bxd5 16. O-O-O $146 ({Predecessor:} 16. Ne3) 16... Bc6 17. Nd6+ (17. Ne3 {looks sharper.} Bc5 18. Rg1 Ke7 19. Nf5+ Kf8 20. Ne3) 17... Bxd6 18. Rxd6 Ke7 19. Rd3 Rbd8 20. Rg1 f5 21. g3 Kf6 22. Be2 Rxd3 23. Bxd3 $11 {[%mdl 4096] Endgame KRB-KRB} e4 24. Bc4 Ke5 25. Bxf7 Rf8 $1 {[%cal Rf8f7]} 26. Bc4 f4 27. Rf1 Rf6 28. b3 Rh6 29. h4 fxg3 30. fxg3 Rg6 31. Rg1 e3 32. g4 Bf3 {[%mdl 1024] Black has compensation.} 33. g5 Kf4 34. Bd3 $2 (34. Rf1 $11 {and White has nothing to worry.} Kg3 35. Re1) 34... Rg7 $1 $19 35. b4 Rd7 (35... Bh5 $1 $19 36. Bc4 Rd7) 36. Re1 (36. g6 $17 {was called for.} hxg6 37. Rxg6) 36... Re7 $1 37. Rg1 Rd7 38. Re1 $1 Bh5 39. b5 (39. Rf1+ $17 Kg3 40. Rg1+ Kf2 41. Rf1+ Kg3 42. Rg1+ Kf3 43. Re1) 39... axb5 40. Bxb5 Rd5 41. Rf1+ $2 {[#]} (41. Bd3 $17 {nothing else works.}) 41... Kg3 $1 42. Bd3 (42. Rg1+ $142 Kxh4 43. Bd3) 42... Rxa5 {Black is clearly winning.} 43. Rf6 {If only White now had time for Re6....} Re5 44. Rb6 Re7 45. Rh6 {[#]} Bg6 $1 {[%mdl 512] Hoping for ...Bxd3.} 46. Kd1 {[#]} (46. Bxg6 e2) 46... Kf2 $1 47. h5 {[#]} Rd7 $1 {[%mdl 512]} 48. Kc1 Rxd3 49. cxd3 e2 50. hxg6 e1=Q+ {KQ-KR} 51. Kc2 Qe2+ 52. Kc3 Qe5+ 53. d4 Qc7+ 54. Kd2 hxg6 {Accuracy: White = 47%, Black = 65%.} 0-1

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.13"]
[Round "3.4"]
[White "Dubov, Daniil"]
[Black "Duda, Jan-Krzysztof"]
[Result "0-1"]
[ECO "B06"]
[WhiteElo "2699"]
[BlackElo "2734"]
[Annotator "TA"]
[PlyCount "170"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,170,69,79,70,65,22,76,33,45,9,30,0,1,0,0,-17,-22,-14,2,0,15,9,12,0,70,18,21,25,32,22,34,30,28,34,27,19,25,10,30,31,36,19,66,42,27,32,34,30,127,79,96,106,96,45,52,53,56,39,49,56,73,0,0,-31,-20,-10,-17,-59,-42,-43,-50,-54,-54,-150,-164,-156,-145,-162,-157,-141,-84,-71,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-7,0,0,0,0,0,0,0,0,0,0,0,0,68,68,62,-320,-297,-29958,-29955,-5704,-354,-5916,-5774,-6215,-5158,-29969,-29972,-29972,-29974,-29973,-29974,-29974,-29976,-29976,-29976,-29976,-29977,-29981,-29981,-29982,-29983,-29983,-29984,-29984,-29983,-29983,-29982,-29983,-29984,-29984,-29985]} 1. d4 g6 2. e4 Bg7 3. Nf3 d6 4. Bc4 a6 5. O-O b5 6. Bb3 {B06: Modern Defence} Bb7 (6... e6 7. a4 Bb7 8. Re1 Ne7 9. axb5 axb5 10. Rxa8 Bxa8 11. Qe2 c6 12. Nbd2 O-O 13. Nf1 Nd7 14. Ng3 c5 15. Bf4 c4 16. c3 e5 17. Bc2 {½-½ (17) Kobalia,M (2608)-Demidov,M (2557) Moscow 2019}) 7. Re1 e6 (7... Nf6 $11) 8. c3 {White is better.} Nd7 9. a4 Ngf6 $146 ({Predecessor:} 9... Ne7 10. Qe2 O-O 11. Nbd2 c6 12. Nf1 h6 13. Ng3 {1-0 (40) Fernandez Romero,E (2480)-Diaz Castro,S (2224) Seville 2013}) 10. Nbd2 O-O 11. Bc2 c5 12. Nf1 Qc7 13. Ng3 Rfc8 14. Bd3 b4 15. a5 c4 16. Bf1 b3 (16... bxc3 $11 17. bxc3 Rab8) 17. Ra4 (17. Nd2 $14) 17... d5 $11 18. e5 Ne8 $1 19. h4 Bc6 20. Ra1 Rcb8 21. h5 Rb5 22. Ng5 Nf8 23. Qf3 Ra7 24. Nh1 h6 25. Nh3 g5 26. Qd1 (26. Qe2 {feels hotter.} Rxa5 27. Rxa5 Qxa5 28. f4 gxf4 29. Bxf4 f5 30. exf6 Nxf6 31. g4) 26... Rxa5 27. Rxa5 Qxa5 28. f4 g4 (28... gxf4 $11 29. N1f2 Qa2) 29. N3f2 f5 {...Qd8 is the strong threat.} 30. exf6 $1 Nxf6 31. Ng3 ({White should try} 31. Nxg4 $16 Nxg4 32. Qxg4) 31... Rf7 $14 32. Be2 Bd7 33. Nxg4 Nxg4 34. Bxg4 Qc7 35. Ne2 (35. Qe2 $16) 35... a5 $11 36. f5 exf5 37. Bf3 $1 {Hoping for Nf4.} Bc6 38. Bf4 Qd8 39. Qc1 Kh7 40. Be5 Ne6 41. Bxg7 ({White should play} 41. Nf4 $15 Ng5 42. Qd1) 41... Rxg7 $17 (41... Kxg7 42. Nf4 $15) 42. Nf4 Ng5 $1 {[%cal Rg5f3]} 43. Qe3 {With the idea Ne6.} Qd6 {aiming for ...Qxf4!} 44. Ng6 Qg3 (44... a4 $142 45. Ra1 Bd7) 45. Rf1 {[#]} Rf7 (45... Qc7 $1 $17) 46. Qe5 $36 {[%csl Gg6][%cal Re5h8][%mdl 2048] White has the initiative.} Nxf3+ 47. Rxf3 {[%csl Gg6][%cal Re5h8][%mdl 64] Double Attack} Qxe5 48. Nxe5 Rf6 49. Nxc6 Rxc6 50. Rxf5 {[%mdl 4096] Endgame KR-KR} a4 51. Rf7+ $1 (51. Rxd5 $2 {[#]} a3 $1 $19 {[%mdl 512]}) 51... Kg8 52. Ra7 Re6 {White must now prevent ...Re2.} 53. Kf2 Rf6+ 54. Ke2 Rf5 55. Rxa4 Rxh5 {Strongly threatening ...Rh1.} 56. Ra1 Rg5 57. Kf3 Rf5+ 58. Ke2 Kg7 59. Ke3 h5 60. Ke2 Kg6 61. Ra8 Rf7 62. Ra5 Rd7 63. Kf3 Kg5 64. g3 Rd8 65. Rb5 Rf8+ 66. Kg2 $1 Kf5 (66... Rf5 $11) 67. Rxd5+ $14 Ke4 $1 {[%cal Re4d5]} 68. Re5+ $2 {[%mdl 8192]} (68. Rxh5 $14 {was forced to keep a grip.} Ke3 69. Rh2) 68... Kd3 $19 69. d5 $2 ({Reject} 69. Rxh5 Kc2 $19) (69. Re6 $19) 69... Kc2 70. Re2+ Kd1 $2 (70... Kc1 {Threatens to win with ...Rd8.} 71. Rf2 Rxf2+ 72. Kxf2 Kxb2) 71. Re5 $2 (71. Re4 Kc1 72. Rxc4 (72. Re2 $2 Rd8 $19)) 71... Kc1 72. Re4 Rd8 73. Rxc4 Rxd5 {Black mates.} 74. Rd4 Rc5 ({And not} 74... Rxd4 75. cxd4 Kxb2 76. d5 $11) 75. c4 Kxb2 76. Rd5 Rxc4 77. Rxh5 Kc3 78. Rh1 b2 79. Kh3 Kb3 80. Rb1 Rc1 81. Rxb2+ Kxb2 82. Kg4 Kc3 83. Kf5 Rf1+ 84. Ke5 Rg1 85. Kf4 Kd4 {Accuracy: White = 45%, Black = 65%.} 0-1

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.13"]
[Round "3.5"]
[White "Dubov, Daniil"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "D14"]
[WhiteElo "2699"]
[BlackElo "2734"]
[Annotator "TA"]
[PlyCount "31"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,31,23,23,22,16,20,19,20,0,2,0,22,33,50,33,23,22]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. cxd5 cxd5 5. Nc3 Nc6 6. Bf4 Bf5 7. Qb3 Na5 8. Qa4+ Bd7 9. Qc2 e6 {D14: Slav Defence: Exchange variation with ...Bf5} 10. e3 Nc6 (10... Be7 11. Bd3 Nc6 12. Qe2 Nh5 13. Be5 f6 14. Bg3 f5 15. Nd2 g6 {½-½ (29) Aronian,L (2756)-Yu,Y (2736) Riga 2019}) 11. a3 Nh5 {The position is equal.} 12. Bg5 f6 $146 ({Predecessor:} 12... Qa5 13. Be2 h6 14. Bh4 g5 15. Bg3 Nxg3 16. hxg3 Bg7 17. g4 {½-½ (41) Dzagnidze,N (2522)-Sebag,M (2492) Riadh 2017}) 13. h4 Qc7 14. g4 fxg5 15. gxh5 gxh4 16. Rg1 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.13"]
[Round "3.6"]
[White "Duda, Jan-Krzysztof"]
[Black "Dubov, Daniil"]
[Result "1-0"]
[ECO "D03"]
[WhiteElo "2734"]
[BlackElo "2699"]
[Annotator "TA"]
[PlyCount "119"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,119,0,0,0,0,3,-3,-8,0,0,0,-6,18,0,0,0,27,27,28,28,28,28,29,29,29,29,37,20,31,22,54,-3,9,15,17,0,12,0,37,0,11,0,0,0,18,0,0,0,21,-7,8,4,47,45,53,45,56,73,56,70,100,90,122,97,118,116,142,31,39,55,52,68,178,152,154,156,148,146,148,150,138,146,256,256,246,231,306,297,292,289,277,277,381,381,381,376,373,373,1255,1262,1291,1291,1262,1255,1186,1182,1113,564]} 1. d4 Nf6 2. c3 g6 3. Bg5 Bg7 4. Nd2 d5 5. e3 O-O 6. Ngf3 Nbd7 7. Be2 Re8 8. Qb3 {D03: 1 d4 d5 2 Nf3 Nf6 3 Bg5, including Torre Attack with early ...d5} (8. O-O e5 9. Rc1 c6 10. h3 e4 11. Nh2 Nf8 12. c4 Qa5 13. a3 dxc4 14. Bxf6 Bxf6 15. Bxc4 Bf5 16. g4 Bd7 {1-0 (33) Kramnik,V (2753)-Svidler,P (2729) Amsterdam 2019}) 8... c6 9. O-O e5 10. Rfd1 {The position is equal.} h6 $146 ({Predecessor:} 10... e4 11. Ne1 h6 12. Bh4 g5 13. Bg3 Nf8 14. c4 Ng6 15. Nc2 h5 {0-1 (41) Lein,A (2535)-Biyiasas,P (2485) Hastings 1979}) 11. Bh4 Qe7 12. Rac1 exd4 13. cxd4 a5 14. h3 Qb4 15. Qc2 Ne4 {White should prevent ...g5.} 16. Nxe4 Rxe4 17. Bd3 Re8 18. a3 Qf8 19. Rb1 a4 20. Bg3 Nf6 21. Ne5 Be6 22. Rf1 ({White should try} 22. b3 $14) 22... Ne4 23. Bh2 Qe7 24. Rbc1 Nd6 25. Qc5 {Black must now prevent Nxc6.} Nf5 26. Qb6 Nh4 27. Bg3 Nf5 28. Bh2 Nh4 29. Bg3 Nf5 30. Bf4 Nh4 31. Rc5 Bxe5 32. dxe5 (32. Bxe5 $2 {[#]} Bxh3 $1 {[%mdl 512]} 33. Bg3 (33. gxh3 $2 Qg5+ 34. Bg3 Rxe3 $19) 33... Nxg2 $19) 32... Bf5 33. Be2 $1 g5 34. Bg3 Ng6 35. f4 gxf4 36. exf4 d4 37. Rd1 Rad8 38. Rc4 d3 39. Bf3 Nh4 40. Bxh4 (40. Bh5 $16) 40... Qxh4 $14 41. Qf2 Qxf2+ 42. Kxf2 Be6 (42... d2 $14) 43. Rc3 d2 {[#] aiming for ...Bb3.} 44. Ke3 f6 45. Rxd2 fxe5 46. fxe5 Rxd2 47. Kxd2 Bd5 (47... Ra8 $16) 48. Bxd5+ $18 cxd5 {[%mdl 4096] Endgame KR-KR} 49. Rc7 Rxe5 50. Rxb7 Rf5 51. Ke3 Re5+ 52. Kd4 Rg5 53. g4 h5 54. gxh5 Rxh5 55. Kc5 Rxh3 $2 (55... Kf8 56. Rb4 Ke7 57. Rxa4 d4+ 58. Kc4 Rxh3) 56. Kxd5 {White is clearly winning.} Kf8 57. Kc5 Ke8 58. Rb4 Rh5+ 59. Kb6 Rh2 60. Kb5 {Accuracy: White = 57%, Black = 37%.} 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.15"]
[Round "4.1"]
[White "Grischuk, Alexander"]
[Black "Duda, Jan-Krzysztof"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2759"]
[BlackElo "2734"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,92,16,6,8,13,9,12,12,34,35,50,44,42,54,56,58,39,53,64,60,47,54,66,70,73,73,82,66,58,67,60,37,56,50,68,27,45,48,76,15,39,15,39,38,53,35,84,47,52,28,143,0,0,0,0,0,13,0,4,0,0,0,25,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 d5 8. cxd5 exd5 9. O-O O-O 10. Nc3 Re8 11. Ne5 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations} (11. a3 Nbd7 12. b4 Bb7 13. Qb3 Bd6 14. Bg5 h6 15. Bxf6 Nxf6 16. e3 c6 17. Rfc1 Qe7 18. Nd2 a6 {½-½ (46) Karjakin,S (2748)-Harikrishna,P (2734) Yekaterinburg 2019}) 11... Bb7 12. Rc1 Nbd7 13. Rc2 Bf8 14. Bf4 c5 15. Nxd7 $146 ({Predecessor:} 15. Nc4 Re6 16. Nb5 {1-0 (68) Kolmagorov,A (2180)-Inozemtsev,S (2310) Sochi 2019}) 15... Qxd7 16. dxc5 bxc5 17. Bg5 $1 d4 {[#] And now ...Bxg2 would win.} 18. Bxb7 Qxb7 19. Bxf6 $1 gxf6 20. Na4 {[%cal Bc3a4,Ba4b2,Bb2c4][%mdl 32]} Re5 21. Nb2 Rae8 22. Nc4 Re4 23. e3 f5 24. Qh5 Qd7 25. Rd2 Bg7 26. Rd3 Qe6 27. exd4 (27. f3 $5 {[%cal Rf3e4]} Rxe3 28. Nxe3 dxe3 29. Re1 $14) 27... cxd4 28. Rf3 Re2 29. Rxf5 (29. a4 $16) 29... Rxa2 $11 30. Rd5 Qg6 31. Qf3 Ra6 32. Rd7 h5 33. h4 Rf6 34. Qd5 Re2 {[#]} (34... Rf5 $11 {keeps the balance.} 35. Qb7 Re2) 35. Qg5 ({Don't take} 35. Rxa7 $6 Rf5 $11) (35. Ne5 $1 $16 Qe4 36. Qxe4 Rxe4 37. Nd3) 35... Qxg5 36. hxg5 Rf5 37. f4 Rb5 38. Rf3 a5 39. Ra7 Rc2 40. Rxa5 Rb8 41. Kf1 Rc3 {The position is equal.} 42. Rxc3 (42. Nd2 {looks sharper.} Rc1+ 43. Kg2 Rd8 44. Ra2 d3 45. b4) 42... dxc3 43. Ne3 Rxb3 44. Ke2 Bd4 45. Ra8+ Kh7 46. Rc8 Bxe3 {Accuracy: White = 56%, Black = 58%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.16"]
[Round "4.2"]
[White "Duda, Jan-Krzysztof"]
[Black "Grischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2734"]
[BlackElo "2759"]
[Annotator "TA"]
[PlyCount "75"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,75,18,13,25,-9,-8,-15,-12,-22,-23,-79,-69,-82,-48,-54,-59,-34,0,-81,-34,-43,-40,-22,-33,-41,-43,-22,-29,-32,-34,-32,-32,-32,-33,-32,-37,-36,-22,-45,-22,-18,-20,-29,-18,-31,-13,-9,-8,-8,-8,-12,-4,-6,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Be7 5. Bf4 O-O 6. e3 Nbd7 7. Rc1 c5 {D37: Queen's Gambit Declined: 5 Bf4} 8. dxc5 Nxc5 9. cxd5 Nxd5 10. Nxd5 exd5 11. a3 {[#]} (11. Be5 $11 {remains equal.}) 11... Bd7 $1 $17 (11... Bg4 12. Be2 Ne6 13. Be5 Bf6 14. Bxf6 Qxf6 15. Qd2 {½-½ (34) Bogdanovich,S (2590)-Nguyen,N (2649) Ho Chi Minh City 2016}) 12. Qxd5 Rc8 $146 ({Predecessor:} 12... Be6 13. Qxd8 Rfxd8 14. Be2 Nb3 15. Rc7 {1-0 (43) Teske,H (2537)-Weiler,D (2165) Frankfurt 2012}) 13. e4 $1 Qb6 14. b4 {Strongly threatening Be3.} Rfd8 (14... Be6 $5 {[%cal Re6d5]} 15. Qd4 (15. bxc5 $2 Bxc5 16. Rxc5 Bxd5 $19) 15... Rfd8 $15) 15. bxc5 (15. Be3 $11 Be6 16. Qe5 {[%mdl 64] Pin} (16. bxc5 $2 Qa5+ 17. Qd2 Rxd2 $19)) 15... Bxc5 16. Be2 $1 {[#] Hoping for 0-0.} Bb5 17. Rxc5 $1 Rxc5 18. Qb3 Qc6 $1 {And now ...Bxe2 would win.} 19. Be3 $1 {[%cal Re3c5]} Bxe2 20. Bxc5 Bxf3 21. Qxf3 Qxc5 $11 {[%mdl 4096] Endgame KQR-KQR} 22. O-O b5 23. h4 h6 24. Rb1 a6 25. Rb3 Qe5 26. g3 Rd4 27. Re3 $1 a5 28. Qg4 b4 29. axb4 {The position is equal.} axb4 30. Qc8+ Kh7 31. Qb7 f6 32. Kg2 Rc4 (32... Qe6 {looks sharper.} 33. Re2 Kg6 34. Re3 Rc4 35. Re1 Qe5) 33. Qd5 Qxd5 (33... Rc3 {keeps more tension.} 34. Rxc3 bxc3 35. Qc4 h5 36. Kf1 Qa5) 34. exd5 Rd4 35. Rb3 Kg6 36. Kf3 h5 37. Ke3 Rxd5 38. Rxb4 {Accuracy: White = 69%, Black = 64%.} 1/2-1/2

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.17"]
[Round "4.3"]
[White "Duda, Jan-Krzysztof"]
[Black "Grischuk, Alexander"]
[Result "1-0"]
[ECO "A29"]
[WhiteElo "2734"]
[BlackElo "2759"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,89,-14,0,0,0,-2,-6,-11,11,13,44,57,55,41,55,42,43,51,44,62,45,0,0,0,67,44,214,204,198,72,230,233,262,241,259,156,150,150,139,112,102,113,107,113,158,154,177,181,220,221,558,569,554,567,548,564,549,533,533,527,638,635,765,772,770,696,675,678,667,654,653,461,29989,29990]} 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 4. Bg2 O-O 5. Nf3 Re8 6. O-O e4 7. Nd4 Nc6 8. Nc2 Bxc3 9. bxc3 d5 10. cxd5 {A29: English Opening: Four Knights Variation with 4 g3} Qxd5 11. Ne3 Qh5 12. f3 {The position is equal.} Ne5 (12... exf3 13. exf3 Ne7 14. f4 Qxd1 15. Rxd1 Nf5 16. Rb1 Nxe3 17. dxe3 h5 {½-½ (33) Li,C (2703)-Bu,X (2726) China 2018}) 13. fxe4 {Threatens to win with Rxf6!} Neg4 14. Nxg4 $1 Bxg4 15. Qc2 $1 Bxe2 16. Rf5 Bd1 17. Qb1 $1 Qe2 18. Rf2 $146 ({Predecessor:} 18. Qxb7) 18... Qh5 {White must now prevent ...Ng4!} 19. Rf5 Qe2 20. Rf2 (20. Rf4 $11) 20... Qh5 $14 21. h3 $36 {[%mdl 2048] aiming for d4. White has some pressure.} Rad8 $2 (21... Qg6 $14 22. d3 Ba4) 22. d4 $18 (22. Qxb7 Bc2 $15) 22... Ba4 {[#]} 23. Qxb7 (23. e5 $1 $18 {has better winning chances.}) 23... Qa5 $2 {[#]} (23... Qd1+ $16 {was necessary.} 24. Rf1 Qd3) 24. e5 $1 {[%cal Re5f6]} Nd5 25. Bd2 Qb5 26. Qxb5 ({But not} 26. Qxa7 $6 Ra8 $16) 26... Bxb5 27. Bg5 Rd7 28. Rc1 {Strongly threatening c4.} Bc4 29. Rb2 h6 30. Bd2 a5 31. a4 c5 32. Rcb1 Red8 33. Rb8 ({Don't play} 33. dxc5 Rc7) 33... Bd3 $2 (33... cxd4 34. cxd4 Nb4 35. Rxd8+ Rxd8) 34. R1b7 Rxb8 35. Rxb8+ Kh7 36. dxc5 Bc4 37. Be4+ g6 38. c6 Rc7 39. Rd8 Nb6 {[#]} 40. e6 $1 Bxe6 41. Bf4 Rc8 42. c7 Nxa4 43. Bb7 Nb6 44. h4 a4 (44... g5 $18 45. hxg5 hxg5 46. Bxc8 Nxc8 47. Bxg5 a4) 45. Bxc8 {Accuracy: White = 76%, Black = 37%.} 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.17"]
[Round "4.4"]
[White "Grischuk, Alexander"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "E15"]
[WhiteElo "2759"]
[BlackElo "2734"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,63,5,6,17,11,28,27,33,29,31,25,33,31,106,96,91,108,97,88,104,102,134,123,121,117,130,138,124,109,125,121,119,121,139,143,153,153,157,148,380,382,507,496,403,375,558,540,545,521]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 d5 8. O-O O-O 9. Ne5 c6 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations} (9... c5 10. Bc3 Bb7 11. Nd2 Na6 12. Rc1 Re8 13. e3 cxd4 14. Bxd4 Ba3 15. Rb1 Bf8 16. Qe2 Nb4 17. Rfd1 {½-½ (65) Radjabov,T (2759)-Gelfand,B (2676) Moscow 2019}) 10. Bc3 Nfd7 11. Nd3 dxc4 {White has an edge.} 12. Nb4 cxb3 {[#] Strongly threatening ...Bxb4.} 13. Nxa6 Nxa6 14. Bxc6 Rb8 $146 ({Black should try} 14... Rc8 $14 15. Bb7 Rxc3 {[%mdl 64] Remove Defender, Decoy} 16. Nxc3 Qc7) ({Predecessor:} 14... Rc8 15. Bb7 Rxc3 16. Nxc3 Qc7 17. Bxa6 {1-0 (77) Nowakowski,M (2446)-Carapinha,F (2264) ICCF email 2011}) 15. axb3 $16 Nb4 16. Bxb4 Bxb4 17. Rxa7 Nf6 18. e3 Rc8 19. Bg2 Re8 20. Nd2 {[%cal Bb1d2,Bd2c4,Bc4e5][%mdl 32]} Re7 21. Rxe7 Bxe7 22. Nc4 Bf8 23. Qa1 b5 24. Ne5 Qb6 25. Rc1 Rxc1+ 26. Qxc1 Qa7 27. Qc8 b4 $2 (27... g6 $16 28. Bc6 Kg7 29. Bxb5 Bd6) 28. Bb7 $18 {[#] aiming for Qc7.} Qa1+ 29. Kg2 {Hoping for Qc7.} Qa5 30. Bc6 Qa7 (30... Qb6 {was called for.} 31. h3 h6) 31. Be8 Nxe8 32. Nd7 {Accuracy: White = 98%, Black = 33%.} ({Not} 32. Qxe8 Qb7+ 33. Kf1 Qa7 $18) 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.17"]
[Round "4.5"]
[White "Grischuk, Alexander"]
[Black "Duda, Jan-Krzysztof"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2759"]
[BlackElo "2734"]
[Annotator "TA"]
[PlyCount "35"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,119,21,19,25,29,25,24,18,50,68,79,75,95,88,95,131,110,121,327,326,303,287,343,352,454,408,408,260,265,97,831,827,890,855,844,750,767,594,584,550,562,554,538,538,561,556,558,537,520,530,521,529,550,448,458,468,610,606,679,527,626,620,730,755,900,868,900,885,858,804,953,915,910,902,1093,1032,1276,1160,2130,2043,3531,2840,29956,29957,29953,29963,29962,29963,29968,29970,29971,29972,29973,29974,29974,29975,29975,29976,29976,29976,29974,29975,29975,29976,29980,29981,29981,29982,29982,29978,29982,29982]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 e6 5. Bd3 Nbd7 (5... dxc4 6. Bxc4 Nbd7 7. O-O Bd6 8. Nbd2 O-O 9. Be2 c5 10. b3 b6 11. Nc4 Bc7 12. a4 Bb7 13. Ba3 Ne4 14. Rc1 Qf6 15. Ncd2 Rac8 16. Nxe4 Bxe4 {0-1 (110) Kozul,Z (2612)-Adhiban,B (2682) Zagreb 2018}) 6. b3 {D30: Queen's Gambit Declined: Systems without Nc3} b6 7. O-O Bb7 8. Bb2 {White has an edge.} dxc4 9. bxc4 c5 10. d5 $146 ({Predecessor:} 10. Nbd2 Be7 11. Qe2 O-O 12. Rad1 Rc8 13. Ne5 cxd4 14. exd4 Nxe5 15. dxe5 {0-1 (29) Kessler,L (2280)-Duda,J (2536) Maribor 2013}) 10... exd5 11. cxd5 Bxd5 {[#]} 12. e4 $1 {[%cal Re4d5][%mdl 512]} Bc6 (12... Bxe4 13. Bxf6) 13. Re1 {[%mdl 1024] aiming for e5. White has strong compensation.} Qe7 $2 (13... Nh5 $16) 14. Nc3 $18 O-O-O {[#]} 15. Nd5 $1 {[%mdl 512]} Qe8 (15... Bxd5 16. exd5) 16. a4 Bd6 17. Ba6+ Kb8 18. Bb5 {Played: Qd1-b3} 1-0

[Event "Grand Prix Hamburg 2019"]
[Site "Hamburg"]
[Date "2019.11.17"]
[Round "4.6"]
[White "Duda, Jan-Krzysztof"]
[Black "Grischuk, Alexander"]
[Result "1/2-1/2"]
[ECO "C48"]
[WhiteElo "2734"]
[BlackElo "2759"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2019.11.05"]
[EventType "k.o."]
[EventCountry "GER"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,89,-25,4,18,33,23,36,-37,8,0,10,12,9,0,0,18,61,65,55,60,48,41,35,33,27,0,0,0,22,0,0,-54,-46,-50,-50,-52,-66,-65,-36,-46,-20,-35,-31,-44,-34,-33,-29,-62,-59,-111,-135,-124,8,7,1,-57,-57,-60,-60,-210,-220,-344,-343,-413,-404,-397,-352,-477,-456,-467,-472,-960,-948,-1202,-1110,-2229,-1091,-1076,-1066,-29981]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4 5. Ba4 c6 6. Nxe5 d5 7. d3 {C48: Four Knights: 4 Bb5, replies other than 4...Bb4} Bc5 (7... Bd6 8. f4 Bc5 9. exd5 O-O 10. dxc6 bxc6 11. h3 Re8 12. Qd2 Nd7 13. Kd1 Nxe5 14. fxe5 Rxe5 {1-0 (79) Wei,Y (2706)-Rodshtein,M (2654) Tsaghkadzor 2015}) 8. O-O {aiming for exd5.} O-O $1 9. Kh1 $146 ({Better is} 9. exd5 $14 Re8 10. Nf3) ({Predecessor:} 9. exd5 Nxd5 10. Ne4 Bb6 11. c3 Ne6 12. Qh5 Ndf4 13. Qf3 Ng6 14. Nc4 Bc7 {1-0 (35) Dobrowolny,R-Prochazka,H Brno 1921}) 9... Qc7 (9... b5 $5 10. Bb3 $8 a5 $11) 10. f4 $1 b5 11. Bb3 $1 {[%cal Re4d5]} a5 {Threatens to win with ...a4.} 12. a3 $1 Nxb3 13. cxb3 Bd4 14. Nf3 Bxc3 15. e5 {[#]} Bxe5 $1 {[%mdl 512]} 16. fxe5 (16. Nxe5 c5) 16... Nd7 17. Bf4 Nc5 18. Rc1 Ne6 19. Qd2 c5 20. d4 c4 21. Nh4 (21. Be3 $11) 21... Qd8 $15 22. Bg3 Ng5 23. Nf3 Ne4 24. Qe3 Bf5 25. Be1 Rc8 {[%cal Ba8c8,Bc8c6,Bc6g6][%mdl 32]} 26. h3 h6 27. Nd2 Bg6 28. Nxe4 Bxe4 29. Bd2 Rc6 30. a4 ({White should play} 30. Kh2 $15) 30... Rg6 $17 31. Rf2 Qh4 (31... f5 $17 {...f4! is the strong threat.} 32. Qf4 (32. axb5 $2 f4 $19) 32... bxa4 33. bxa4 (33. bxc4 dxc4 34. Bc3 Qd5 $17) 33... Qe7) 32. Kh2 $1 $11 Rb8 $132 {[%mdl 2048] With the idea ...bxa4. Black is fighting back} 33. axb5 (33. Bxa5 $11 bxa4 34. bxc4) 33... Rxb5 $15 34. bxc4 Rxb2 35. Rcf1 {[#]} (35. c5 $15) 35... a4 $1 $19 {[%cal Ba5a4,Ba4a3][%mdl 32]} ({Resist} 35... dxc4 36. g3 $15) 36. g3 {[#]} (36. c5 {was necessary.}) 36... Qe7 $1 37. c5 Rb3 38. Bc3 {Now Rb2 and White clings on.} a3 39. Ra1 Ra6 {Black is clearly winning.} 40. Qc1 f6 41. Rfa2 (41. Qf1 $142 Qe6 42. Qe1) 41... fxe5 42. Bd2 exd4 43. c6 {[#]} Qd6 $1 44. Bf4 Qxc6 45. Rxa3 {[%mdl 32768] Accuracy: White = 35%, Black = 58%. . An unexpected result.} 1/2-1/2

