[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.1"]
[White "Bogdanovich, Stanislav"]
[Black "Iturrizaga Bonelli, Eduardo"]
[Result "1/2-1/2"]
[ECO "E12"]
[WhiteElo "2536"]
[BlackElo "2639"]
[Annotator "TA"]
[PlyCount "213"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,213,45,58,49,52,52,45,45,45,55,47,40,57,56,69,78,69,76,100,94,112,100,105,110,120,86,99,83,78,83,85,79,81,75,81,73,71,47,64,66,66,68,58,57,62,30,29,35,100,117,108,95,115,60,107,108,115,115,162,166,169,124,116,118,119,125,113,85,92,81,127,85,173,160,209,200,196,137,159,152,138,145,143,129,123,122,186,173,232,207,213,192,195,180,204,191,190,190,271,262,266,252,267,278,450,491,434,353,506,506,506,506,506,506,468,249,229,222,215,59,60,60,60,58,58,44,64,50,552,12,12,12,12,12,186,180,184,185,167,12,12,12,14,14,14,14,170,14,14,14,14,14,14,14,14,14,14,14,14,12,12,12,12,12,12,12,12,12,12,12,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,14,0,14,0,22,22,22,22]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Ba6 5. Qb3 Bb7 6. Nc3 g6 7. Qc2 Bg7 8. e4 O-O 9. Bd3 {E12: Queen's Indian: Unusual White 4th moves, 4 a3, 4 Nc3 Bb7 5 a3 and 4 Nc3 Bb7} (9. Be2 d5 10. cxd5 exd5 11. e5 Ne4 12. O-O c5 13. dxc5 bxc5 14. Rd1 Nxc3 15. bxc3 Nd7 16. Rb1 Bc6 {0-1 (43) Wang,Y (2718)-Mamedyarov,S (2747) Huaian 2016}) 9... c5 10. d5 exd5 11. cxd5 {White is slightly better.} d6 12. O-O a6 13. a4 Nbd7 14. Bf4 Qc7 $146 ({Predecessor:} 14... Qe7 15. h3 Nh5 16. Bg5 Bf6 {½-½ (40) Tassone,R (2164)-Vegjeleki,A (2320) ICCF email 2014}) 15. Nd2 Ng4 16. Be2 Nge5 17. Bg3 f6 18. f4 Nf7 19. Nc4 Rae8 20. h3 Nh6 21. f5 Nf7 22. Qb3 Nfe5 23. Bxe5 Nxe5 24. Qxb6 Qxb6 25. Nxb6 Bh6 26. Nd1 Bd2 {With the idea ...Ba5.} 27. a5 Kg7 28. b3 Re7 29. Ra2 Bb4 30. h4 Nf7 31. Bd3 g5 (31... Ne5 $14 32. Bb1 Bc8) 32. hxg5 $16 Nxg5 33. Nf2 Bc3 34. Ra4 ({White should play} 34. Nc4 $16) 34... Rfe8 35. Rc1 Bd2 36. Rc2 Be1 37. Nc4 Rd8 38. Kf1 Bxf2 39. Kxf2 Rxe4 40. Bxe4 Nxe4+ 41. Kg1 Bxd5 42. Ra1 Bf7 43. Rd1 Rb8 (43... Kh6 $16) 44. Rd3 $1 $18 d5 45. Nb6 $1 d4 {[#]} 46. Re2 ({Better is} 46. b4 $1 $18 {[%mdl 512]} cxb4 47. Rxd4) 46... Nd6 $16 {[#]} 47. b4 $1 {[%mdl 576] Deflection} cxb4 48. Rxd4 {[%mdl 64] Double Attack} Nxf5 49. Rxb4 Rd8 50. Rf2 Nd4 (50... Bg6 $16 51. Nc4 Rd4) 51. Nc4 $18 Nb5 (51... Nb3 {was called for.} 52. Rxb3 Bxc4) 52. Ne3 Bg6 53. Rbf4 Rd3 54. Nf5+ Kf7 55. Nh4 Rd6 56. g4 Kg7 (56... h6 {might work better.} 57. Nxg6 Kxg6) 57. Nf5+ Bxf5 58. gxf5 {[%mdl 4096] Endgame KRR-KRN} ({Don't take} 58. Rxf5 $6 Nd4 $16) 58... Rd1+ 59. Kh2 Ra1 $2 (59... Rd5 60. Rg2+ Kf8) 60. Rg2+ Kf8 61. Rh4 Nd6 (61... Rxa5 $142 62. Rd2 (62. Rxh7 Nd4 $18) 62... Nc3 63. Rxh7 Rd5) 62. Rxh7 Nf7 63. Rb2 {White threatens Rb7 and mate.} Kg8 64. Rh4 Rxa5 65. Rb8+ (65. Rg4+ $142 Ng5 66. Rc4) 65... Kg7 66. Rg4+ Kh6 67. Rg6+ $2 (67. Rf8 $1 $18 Ng5 68. Rxf6+ Kh5 69. Rb4) 67... Kh5 $14 68. Rxf6 Ne5 69. Rff8 Kg5 70. Rb3 Ng4+ 71. Kg1 Kf4 $2 {[%mdl 8192] [#]} (71... Nf6 $14) 72. Rd3 $2 (72. f6 $1 $18) 72... Ra1+ $11 73. Kg2 Ra2+ 74. Kf1 Ra1+ $2 (74... Ne3+ $11 75. Ke1 Ng2+ 76. Kd1 Ne3+ 77. Kc1 Ke4) 75. Ke2 $18 Ra2+ {[#]} 76. Ke1 $1 Ra1+ 77. Rd1 $2 (77. Kd2 $18 Nf2 78. Rdd8) 77... Rxd1+ $1 $11 78. Kxd1 {KR-KN} Ke5 79. Ke2 Nf6 80. Ra8 a5 $2 (80... Kxf5 $11 {and Black stays safe.} 81. Rxa6 Nd5) 81. Kd3 $2 (81. Rxa5+ $18 Ke4 82. Kf2) 81... Kxf5 {The position is equal.} 82. Rxa5+ Ke6 83. Kd4 Nd7 84. Rd5 Nf6 85. Re5+ Kd6 86. Re1 Nd7 87. Ke4 {Black must now prevent Kf5.} Nc5+ 88. Ke3 {aiming for Kd4.} Kd5 89. Rd1+ Kc4 90. Rd8 Nb3 91. Rd7 Nc5 92. Rd4+ Kb5 93. Rh4 Kc6 94. Kd4 {Rh6+ would kill now.} Ne6+ 95. Ke5 Nc7 96. Rc4+ Kd7 97. Rc1 Ne8 98. Rh1 Nc7 99. Rh6 {Strongly threatening Rd6+.} Ne8 100. Ra6 {Hoping for Rg6.} Nc7 101. Rd6+ Ke7 102. Rd1 Ne8 103. Rg1 {And now Rg8 would win.} Kd7 104. Rh1 Nc7 105. Rh6 {Rd6+ is the strong threat.} Ne8 106. Rg6 {Threatens to win with Re6.} Nc7 107. Ke4 {Accuracy: White = 62%, Black = 58%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.2"]
[White "Wang, Hao"]
[Black "Megaranto, Susanto"]
[Result "1-0"]
[ECO "B01"]
[WhiteElo "2718"]
[BlackElo "2526"]
[Annotator "TA"]
[PlyCount "79"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,79,33,43,35,48,43,43,44,49,39,50,31,66,34,28,25,42,43,64,46,68,66,103,94,96,93,104,95,286,278,282,190,191,163,183,185,279,116,129,128,151,149,228,204,209,209,208,203,197,188,181,186,212,225,204,207,273,266,254,259,503,486,29978,29979,6383,6319,29986,29987]} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 c6 5. Nf3 Bf5 6. Bc4 e6 7. Bd2 Qc7 8. Nh4 {B01: Scandinavian Defence} (8. Qe2 Nf6 9. O-O-O b5 10. Bb3 a5 11. a3 b4 12. Na4 Nbd7 13. Ne5 Be4 14. Nxd7 Kxd7 15. c4 bxc3 16. Nxc3 Bg6 17. Ba4 Bxa3 18. bxa3 {1-0 (44) Lu,S (2636)-Nie,X (2229) Tianjin 2018}) 8... Bg6 9. Nxg6 hxg6 10. Qf3 {White is slightly better.} Nf6 11. O-O-O Nbd7 12. Bb3 O-O-O 13. g4 $146 {Strongly threatening g5.} ({Predecessor:} 13. Kb1 Nb6 14. Bg5 Be7 15. h4 a5 {1-0 (39) Renard,S (2021)-Garay,L (1965) ICCF email 2017}) 13... Nb6 14. g5 Nh5 15. Ne2 Bd6 16. Kb1 Rhf8 17. c4 {Threatens to win with c5.} c5 18. Nc3 cxd4 19. Nb5 $1 {[%csl LRa7,LRc7,LRd4]} Qc5 {[#]} 20. a3 $1 Bf4 $2 (20... Be7 $16) 21. Bb4 $18 Qxg5 22. Bxf8 ({And not} 22. Nxd4 Rh8 $11) (22. Rxd4 Rxd4 23. Nxd4 Rd8 $15) 22... Rxf8 23. Rxd4 {And now Rhd1 would win.} ({Resist} 23. Nxd4 $6 Kb8 $16) 23... Kb8 24. Rhd1 Be5 (24... Rc8 $142 25. Rd7 Nxd7 26. Rxd7 {[%mdl 64] Double Attack} Rc6) 25. Nd6 (25. R4d3 $18 {is more deadly.}) 25... Qe7 $16 26. R4d2 {aiming for c5.} Bxd6 27. Rxd6 $40 {[%mdl 128] Hoping for c5. White attacks with force.} Nf6 (27... Rc8 $16 28. R6d4 Nf6) 28. Qd3 $18 Rc8 29. Rd8 Qc7 30. Rxc8+ Nxc8 31. Qh3 Ne4 32. Qh4 Qe5 33. Rd8 g5 {[#]} 34. Qh8 $1 {[%csl Gh8][%cal Rd8c8]} Ned6 35. Qf8 b6 36. Ba4 Kc7 $2 {[#]} (36... Qf5+ {was worth a try.} 37. Ka2 Qc5 38. Qxg7 Qxc4+ 39. Bb3 Qf4) 37. Bb5 $1 {[%mdl 576] Deflection} Nxb5 (37... Qe4+ $18 38. Ka2 Qf4) 38. Rxc8+ Kb7 39. cxb5 Qe4+ 40. Rc2 {Accuracy: White = 79%, Black = 38%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.3"]
[White "Xu, Yi"]
[Black "Mareco, Sandro"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2520"]
[BlackElo "2666"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,72,26,31,38,31,35,-39,45,47,53,37,78,45,42,38,56,56,54,54,58,50,59,18,15,15,35,27,31,20,12,13,18,16,24,22,25,24,32,0,20,0,29,0,31,21,35,23,41,15,14,21,33,0,0,0,21,0,0]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Nd7 6. O-O h6 7. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3][%mdl 32]} g5 {B12: Caro-Kann: Advance Variation} 8. c3 Ne7 9. Re1 {LiveBook: 15 Games} (9. Ne1 c5 10. Nc2 Nc6 11. Nb3 c4 12. Nd2 Bg6 13. Bh5 Bd3 14. Re1 Bg7 {0-1 (60) Vachier Lagrave,M (2779)-Nakamura,H (2777) chess.com INT 2018}) 9... Bg6 {White is slightly better.} 10. Nf1 c5 11. Bd3 $146 ({White should try} 11. h3 $14) ({Predecessor:} 11. dxc5 Bg7 12. Bb5 Nc6 13. Be3 Ndxe5 14. Nxe5 Bxe5 15. Bd4 Bxd4 16. cxd4 {½-½ (36) Van Foreest,J (2624)-Lobanov,S (2535) Manavgat 2018}) 11... Bg7 (11... g4 $15 12. Bxg6 Nxg6) 12. h3 $14 Rc8 13. Ng3 Qb6 14. b3 O-O 15. Be3 Qc7 16. Rc1 cxd4 17. cxd4 Qa5 18. Bxg6 fxg6 19. Qd2 (19. a4 {is more complex.} Qb6 20. Ne2 Nb8 21. Bd2 Nbc6 22. b4) 19... Qxd2 $1 20. Bxd2 Rc6 21. Kf1 Rfc8 22. Ke2 Bf8 23. Kd3 Rxc1 24. Rxc1 Nc6 25. Ne2 Ba3 26. Rb1 Be7 27. Rc1 Ba3 28. Rb1 Be7 29. Rc1 a6 30. Ne1 Ba3 31. Rb1 Ndxe5+ 32. dxe5 Nxe5+ 33. Kd4 Nc6+ 34. Kd3 Ne5+ {The position is equal.} 35. Kd4 Nc6+ 36. Kd3 Ne5+ {Precision: White = 53%, Black = 54%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.4"]
[White "Van Wely, Loek"]
[Black "Karthik Venkataraman"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "2612"]
[BlackElo "2494"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,74,17,27,22,31,28,32,32,38,23,30,-3,27,20,28,26,20,16,72,72,90,69,126,132,118,125,111,109,158,123,117,74,154,145,146,132,158,68,62,67,99,76,65,54,39,27,30,19,25,21,23,28,54,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 a6 4. Nc3 d5 5. cxd5 exd5 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4} Be6 7. e3 Nbd7 8. Bd3 {White is slightly better.} Bd6 9. Qc2 (9. O-O c6 10. Qc2 Qc7 11. Rfe1 O-O 12. a3 Bg4 13. Bh4 Bh5 {0-1 (35) Mamedyarov,S (2817)-Maghsoodloo,P (2688) St Petersburg 2018}) 9... c6 10. O-O-O Qc7 11. Kb1 h6 $146 ({Predecessor:} 11... O-O-O 12. Rc1 Kb8 13. Nd2 h6 {0-1 (54) Sanz Losada,V (2091)-Chylewski,P (2335) Warsaw 2018}) 12. Bh4 O-O 13. Nd2 g5 (13... Be7 $11 {keeps the balance.}) 14. Bg3 $16 Kg7 15. Nf1 Nh5 (15... c5 $14) 16. Bxd6 Qxd6 17. Qe2 Nhf6 18. Ng3 c5 19. h4 {And now hxg5 would win.} cxd4 20. hxg5 hxg5 (20... dxc3 $142 21. gxf6+ Nxf6) 21. Nh5+ ({Resist} 21. exd4 Rh8 $16) 21... Nxh5 22. Qxh5 {[%cal Rh5g5]} Kf6 {[#]} 23. Ne2 (23. Qh6+ $1 $16 Ke7 24. exd4) 23... Rh8 $1 $14 {[%cal Rh8h5]} 24. Qf3+ Ke7 {Threatens to win with ...Rxh1.} 25. Rxh8 Rxh8 26. Nxd4 Ne5 27. Qg3 Nxd3 28. Qxg5+ Kd7 29. Rxd3 {Strongly threatening Rd1.} Rh1+ 30. Kc2 Qb4 31. Rc3 ({Better is} 31. a3 $14 Qa4+ 32. Rb3) 31... Qa4+ $11 {The position is equal.} 32. Nb3 Qxa2 {( -> ...Qb1+)} 33. Nc5+ {[%mdl 64] [#] Double Attack} Ke8 {aiming for ...Qa1.} 34. Nxe6 {[%csl Ge6][%cal Rg5d8]} Qa4+ 35. Rb3 {[%csl Ge6][%cal Rg5d8]} Qc4+ 36. Rc3 {[%csl Ge6][%cal Rg5d8]} Qa4+ 37. Rb3 {[%csl Ge6][%cal Rg5d8]} Qc4+ {Accuracy: White = 61%, Black = 49%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.5"]
[White "Laxman, R.R."]
[Black "Cheparinov, Ivan"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2425"]
[BlackElo "2683"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,123,30,29,31,0,5,5,-13,-7,0,-8,0,-63,-61,-101,-89,-84,-81,-83,-83,-100,-106,-106,-100,-158,-111,-118,-105,-137,-87,-92,-92,-98,-81,-98,-81,-83,-81,-85,-76,-110,-93,-91,-85,-83,-72,-103,-77,-96,-82,-116,-108,-100,-83,-130,-110,-116,-78,-144,-144,-144,-139,-137,-114,-114,-104,-108,-79,-78,-78,-135,-144,-162,-173,-180,-173,-176,-169,-191,-191,-191,-191,-191,-191,-185,-185,-541,-475,-29947,-11660,-29955,-29957,-29961,-29962,-29961,-29964,-29966,-29965,-29974,-29974,-29974,-29975,-29975,-29976,-29976,-29976,-29978,-29978,-29961]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. Nc3 d5 5. cxd5 Nxd5 6. Bd2 O-O 7. Rc1 Nc6 8. e4 Nxc3 {D90: Grünfeld: 4 Nf3 Bg7 sidelines} 9. bxc3 {LiveBook: 3 Games} (9. Bxc3 Bg4 10. d5 Ne5 11. Be2 Nxf3+ 12. Bxf3 Bxc3+ 13. Rxc3 Bxf3 14. Qxf3 e6 15. dxe6 fxe6 16. Qe2 Qd7 17. O-O Rad8 18. Rcc1 c6 19. Rfd1 Qe7 20. g3 Rxd1+ 21. Rxd1 {½-½ (21) Fridman,D (2630)-Ftacnik,L (2571) Germany 2008}) 9... b6 10. d5 $146 ({Predecessor:} 10. Bd3 Na5 11. Qe2 c5 12. d5 c4 13. Bxc4 Nxc4 14. Qxc4 e6 15. O-O exd5 16. Qxd5 {0-1 (30) Pardo Simon,D (2468)-Maatman,N (2339) Netherlands 2017}) 10... Ne5 {The position is equal.} 11. Nxe5 Bxe5 12. Bb5 Qd6 13. Bh6 Rd8 {[%cal Bf8d8,Bd8d6,Bd6e6][%mdl 32]} 14. Qd2 (14. Bc6 $11 Rb8 15. Qd2) 14... Bb7 $1 $15 15. Be3 c6 16. dxc6 Bxc6 17. Qxd6 Rxd6 18. f4 Bxb5 19. fxe5 Re6 20. Bf4 (20. Bd4 $142) 20... Bd3 21. Kf2 Bxe4 22. Rhe1 Bc6 23. c4 Kg7 24. g3 Rd8 25. h4 h6 26. Rc3 Rd4 27. Re2 Rd7 28. a3 Rc7 29. c5 b5 30. Rd3 Rc8 31. Rd1 Rh8 32. Bd2 {[#]} g5 $1 {[%mdl 512]} 33. Ba5 (33. hxg5 hxg5) 33... Kg6 34. Rd4 Re8 35. Bc7 Rc8 36. Ba5 Be8 37. Rd8 ({White should try} 37. Bb4) 37... Rxd8 $17 38. Bxd8 {[%mdl 4096] Endgame KRB-KRB} Bc6 39. hxg5 hxg5 40. g4 Bd7 41. Re3 Ra6 42. Bxe7 Bxg4 43. Bd6 (43. Rg3 $142 Ra4 44. Rc3) 43... Be6 44. Kg3 Kf5 45. Rc3 Bd5 46. Kf2 Ra4 47. c6 Rc4 48. Rxc4 bxc4 $19 {KB-KB} 49. c7 Be6 50. Ke3 a6 51. Kd4 $2 {[#]} (51. Kf3 {is more resistant.}) 51... Kg4 $1 {[%cal Rg4f3]} 52. c8=Q (52. Ke4 $19 Kh3 53. Bc5) 52... Bxc8 53. Kxc4 Kf3 {Black mates.} 54. Kd3 g4 55. Kd2 Kf2 56. Bc5+ {[#]} Kf1 $1 57. e6 Bxe6 58. Bd6 Kf2 59. Bc5+ Kf3 60. Ke1 Bc4 61. Bd6 f5 62. Bc7 {Precision: White = 38%, Black = 68%.} 0-1

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.6"]
[White "Demchenko, Anton"]
[Black "Nguyen, Anh Dung"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2678"]
[BlackElo "2458"]
[Annotator "TA"]
[PlyCount "173"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,173,8,19,11,41,39,43,41,34,50,48,35,52,45,59,56,58,43,64,65,56,56,105,101,185,177,193,184,181,170,181,172,199,158,215,192,205,198,376,394,394,390,366,371,349,198,190,198,191,179,186,0,0,0,0,0,8,9,8,6,6,1,6,7,5,-140,56,0,8,8,8,8,8,8,8,8,8,8,41,8,8,8,8,8,16,8,17,8,8,8,8,8,8,0,22,8,8,8,8,8,8,8,34,30,28,8,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,26,8,26,26,26,26,27,27,27,27,27,29,29,30,42,30,60,8,8,8,8,8,8,8,8,8]} 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. Qg3 {B11: Caro-Kann: Two Knights Variation} dxe4 7. Nxe4 Nh6 8. Qb3 {White is slightly better.} Qc7 9. d4 Nf5 10. c3 Nd7 11. g3 O-O-O $146 ({Predecessor:} 11... Nd6 12. Ng5 Be7 13. Bg2 Qa5 {1-0 (44) Bartel,M (2653)-Ruck,R (2563) Katowice 2016}) 12. Bg2 h6 13. Bf4 Qa5 14. O-O g5 15. Bd2 Be7 16. Qc2 Nb6 (16... Ng7 $16) 17. a4 $18 Nc4 18. b4 Qc7 19. Bc1 $1 Nfd6 20. Nc5 Nf5 21. Qe2 Nb6 (21... Bxc5 $16 22. bxc5 Na5) 22. Ne4 Nd5 23. b5 c5 $2 (23... Rhe8 24. Bb2 Kb8) 24. dxc5 Bxc5 25. Nxc5 Qxc5 26. Ba3 Qc7 {[#]} 27. Rfc1 (27. a5 $142 $1 {[%mdl 512]}) 27... Rhg8 28. Qe4 $1 Nf6 29. Qe1 $1 g4 {[#]} 30. a5 $2 (30. h4 $1 $18) 30... gxh3 $1 $11 31. b6 $1 {[%cal Rb6c7]} axb6 32. axb6 Qc4 33. Bxh3 Nxg3 $1 34. fxg3 {Threatens to win with Bb4.} Rd3 $132 {[%mdl 2048] Black has counterplay} 35. Bg2 Rdxg3 36. Rc2 Qc6 $1 {[%cal Rg3g2]} 37. Raa2 (37. Qf1 $11 {was the only way to keep the balance.} R3g4 38. Rb2) 37... Nd5 $2 (37... Qxb6+ $17 38. Kf1 {[#]} Rf3+ $1 {[%mdl 512]} 39. Rf2 Rxf2+ 40. Rxf2 Ng4) 38. Kh1 (38. Bc1 $1 $14) 38... Rxg2 (38... Qc4 $5 39. Qg1 $8 Re3 $11) 39. Rxg2 Nf4 {[%cal Rg8g2]} 40. Qf1 (40. Bc1 Rxg2 41. Ra8+ Kd7 42. Rd8+ Kxd8 43. Qf1 Rf2+ 44. Kg1 Rxf1+ 45. Kxf1 Qg2+ 46. Ke1 Qe2#) 40... Rg4 {[%mdl 64] Pin} 41. Be7 Rxg2 42. Rxg2 Nxg2 43. Qxg2 Qxb6 44. Qd2 Qc6+ 45. Kg1 {[%csl Ge7][%cal Rd2d8]} b6 46. Bh4 h5 47. Bf2 {Black should prevent Qd4.} (47. Qd8+ $6 Kb7 $16) 47... Kb7 48. Qe3 f6 49. Kh2 e5 50. Be1 Qd5 51. Bf2 Qc6 52. Bh4 {Threatening Qe2.} Ka7 53. Bg3 Kb7 54. Qd3 Ka7 55. Kg1 Qa4 56. Bf2 Qc6 57. c4 Kb7 58. Qb3 {next c5 is good for White.} Kc7 59. Qb4 Qe6 60. Kh2 f5 61. Qa4 Kb7 62. Qb5 Kc7 63. Qa6 Qc6 64. Qa7+ Kc8 65. Qf7 (65. Bxb6 Qxc4 66. Qa8+ Kd7 $16) 65... f4 66. Qf5+ ({Less strong is} 66. Qxh5 Qf6 $18) 66... Kb7 67. Qxe5 Qxc4 68. Qxh5 Ka6 69. Qh6 {[%csl Gf2][%cal Rh6b6]} Qc7 70. Qe6 Kb7 71. Qe4+ Qc6 72. Qd4 {Strongly threatening Kh3.} ({Weaker is} 72. Qxf4 b5 $18) 72... Qh6+ 73. Kg2 {Kf3 is the strong threat.} ({Not} 73. Kg1 Qg5+ 74. Kf1 Qb5+ 75. Kg2 Qc6+ 76. Kh3 Qg6 $18) 73... Qc6+ 74. Kh3 f3 (74... Qe6+ {is interesting.} 75. Kh4 Qh6+ 76. Kg4 Qg6+ 77. Kf3 Qh5+) 75. Kg3 Ka6 76. Qg7 Qd6+ 77. Kxf3 Qd5+ 78. Kg3 Qd6+ 79. Kg2 {Hoping for Qc3.} Qd5+ 80. Kh2 Qd6+ 81. Bg3 Qc6 82. Qh7 Qe6 83. Qc7 (83. Qd3+ $14 b5 84. Bf4) 83... Qe2+ {The position is equal.} 84. Kg1 {Black must now prevent Qc8+.} Qd1+ 85. Kf2 {And now Qc4+ would win.} Qd2+ 86. Kf1 {aiming for Qc4+.} Qd3+ 87. Ke1 {Accuracy: White = 59%, Black = 60%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.7"]
[White "Nguyen, Ngoc Truong Son"]
[Black "Laylo, Darwin"]
[Result "1-0"]
[ECO "D96"]
[WhiteElo "2647"]
[BlackElo "2430"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,87,24,16,70,46,43,49,58,51,58,57,56,37,60,20,87,87,83,79,104,97,125,118,120,118,121,125,115,121,121,114,158,157,155,155,162,162,160,155,235,231,228,225,237,239,241,239,243,237,223,222,251,251,314,273,274,266,266,266,321,266,410,381,389,306,491,473,474,469,548,522,502,446]} 1. Nf3 Nf6 2. c4 c6 3. Nc3 d5 4. d4 g6 5. cxd5 cxd5 6. Bf4 Bg7 7. e3 O-O 8. Be2 Nc6 9. h3 Nd7 $146 {D90: Grünfeld: 4 Nf3 Bg7 sidelines} (9... Qb6 $11) ({Predecessor:} 9... a6 10. O-O Bf5 11. Rc1 Rc8 12. Qb3 b5 13. Ne5 Nxe5 14. Bxe5 Ne4 15. Nxe4 Bxe4 16. Bxg7 Kxg7 17. Rc5 e5 18. Rfc1 Rxc5 19. dxc5 {1-0 (39) Carlsen,M (2834)-Yanchenko,R (2436) chess.com INT 2018}) 10. Nxd5 {aiming for Bc7.} Qa5+ 11. Nc3 e5 {White is slightly better.} 12. dxe5 Ndxe5 13. Nxe5 Nxe5 14. O-O $36 {[%mdl 2048] White is more active.} Be6 15. Qa4 Nc4 (15... Qxa4 $11 16. Nxa4 Rfc8) 16. Qxa5 $16 Nxa5 17. Rac1 Rfc8 18. Bf3 Rc4 19. Nd5 Bxb2 20. Rxc4 Nxc4 21. Nc7 Rd8 22. Nxe6 fxe6 23. Bxb7 e5 24. Bg5 Rd6 25. Rb1 {Strongly threatening e4.} Kg7 26. Bf3 Rd2 27. Rd1 a5 (27... Rxd1+ $16 28. Bxd1 Nd6) 28. Rxd2 $18 Nxd2 {[%mdl 4096] Endgame KBB-KBN} 29. Bd5 Nb1 30. Bd8 Nc3 31. Bc4 a4 32. Kf1 Ne4 {[#] White must now prevent ...Nd2+.} 33. Ke2 h6 34. Be7 g5 35. f3 Ng3+ 36. Kd3 Nf5 37. Bc5 Nh4 38. Kc2 Ba1 (38... a3 $142 39. Bf1 Nf5) 39. Bf1 Kf6 40. a3 Kf5 $2 {[#]} (40... e4 41. fxe4 Be5) 41. g4+ {White is clearly winning.} Kf6 42. Be2 Ng2 43. Kd2 Nh4 44. Bd1 {Accuracy: White = 91%, Black = 41%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.8"]
[White "Bulmaga, Irina"]
[Black "Predke, Alexandr"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2424"]
[BlackElo "2611"]
[Annotator "TA"]
[PlyCount "107"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,107,18,37,20,20,22,25,14,31,23,30,23,26,8,12,12,14,-11,26,29,44,0,0,0,0,-12,-12,-26,-14,-20,0,0,0,0,0,0,0,-27,-27,-27,-27,-27,-27,-26,6,8,395,387,386,37,37,37,37,38,37,37,37,35,35,35,84,53,217,217,201,16,16,16,16,16,16,12,13,16,16,17,18,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3 a6 6. O-O d6 7. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} Ba7 (7... O-O 8. Bg5 h6 9. Bh4 g5 10. Bg3 Ba7 11. Nbd2 Nh7 12. h3 h5 13. d4 h4 14. Bh2 g4 15. hxg4 Bxg4 16. dxe5 dxe5 {1-0 (45) Duda,J (2738)-Kramnik,V (2777) Wijk aan Zee 2019}) 8. Re1 O-O 9. h3 {White has an edge.} Be6 10. Nbd2 h6 11. Bxe6 fxe6 12. Nc4 a5 13. Be3 Bxe3 14. Nxe3 $146 ({Predecessor:} 14. Rxe3) 14... d5 15. exd5 exd5 16. d4 e4 17. Ne5 Qd6 18. Nf5 Qe6 19. Nxc6 bxc6 20. Ne3 Qd6 21. c4 Rab8 22. b3 Nh7 23. Rc1 Ng5 24. Qh5 Rxb3 25. cxd5 $1 cxd5 26. h4 Ne6 {next ...Nf4 is good for Black.} 27. Nxd5 Nxd4 (27... Rb2 $5 {[%cal Rf8f2]} 28. Rc6 Nf4 29. Rxd6 Nxh5 30. Ne7+ Kh7 $15) 28. Rxe4 Nf5 $2 {[%mdl 8192] [#]} (28... Rd3 $1 $11) 29. Rd1 $1 $18 Kh7 30. Ne7 $2 (30. Nf4 $18 g6 31. Qg4 (31. Rxd6 gxh5 32. Rd7+ Kg8 $18)) 30... Qf6 $14 31. Qxf5+ Qxf5 32. Nxf5 Rxf5 {[%mdl 4096] Endgame KRR-KRR} 33. Rd7 {Rg4 is the strong threat.} Rb1+ 34. Kh2 {Strongly threatening Rg4.} Rb4 35. Ree7 Rg4 36. f3 Rg6 $2 (36... Rxh4+ $14 37. Kg3 Rxa4) 37. Rxc7 $18 Rf4 {[#]} 38. Re4 $2 ({Only move:} 38. Kh3 $1 $18) 38... Rxe4 $11 {The position is equal.} 39. fxe4 {KR-KR} Rg4 $1 {[%cal Rg4h4]} 40. Re7 Rxh4+ 41. Kg3 Rh5 42. Kf4 Rh4+ 43. Kf3 Rh5 $1 44. Kf4 Rh4+ 45. g4 h5 46. Kg5 Rxg4+ 47. Kxh5 Rg1 48. Re5 g6+ 49. Kh4 Kh6 50. Rxa5 g5+ 51. Kh3 Kh5 52. Ra8 {And now a5 would win.} Re1 53. Rh8+ Kg6 {Threatens to win with ...Rh1+.} 54. Rg8+ {Accuracy: White = 52%, Black = 63%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.9"]
[White "Wen, Yang"]
[Black "Mendonca, Leon Luke"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "2599"]
[BlackElo "2446"]
[Annotator "TA"]
[PlyCount "198"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,198,17,8,31,23,42,46,47,26,54,51,66,52,74,75,88,101,90,91,104,104,92,98,121,115,117,63,99,76,75,78,64,64,101,45,166,166,168,166,168,162,157,14,10,15,0,0,38,27,83,91,81,14,99,0,0,5,25,20,24,19,25,29,36,0,85,85,171,85,85,85,85,11,85,54,85,85,85,54,85,85,85,85,85,14,92,56,85,62,95,20,102,92,89,35,83,56,82,8,29,28,51,0,37,0,75,0,0,0,35,40,77,0,29,24,40,31,76,8,29,0,89,90,91,92,95,43,43,14,32,31,35,15,65,33,28,0,64,64,64,14,64,29,67,0,35,0,43,0,99,100,114,0,90,81,81,65,65,65,81,87,88,71,73,18,81,65,65,65,65,65,65,65,65,65,73,9,50,17,17,17,17]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 Be7 8. Bg2 b5 9. Nd5 {B91: Sicilian Najdorf: 6 g3} Nbd7 10. Nec3 {LiveBook: 25 Games} Nxd5 (10... Nb6 11. Nxf6+ Bxf6 12. O-O O-O 13. b3 b4 14. Nd5 Nxd5 15. Qxd5 Be6 16. Qd3 Qc7 {0-1 (57) Giri,A (2782)-Vachier Lagrave,M (2789) Leuven 2018}) 11. Nxd5 {White is slightly better.} Nb6 $146 ({Predecessor:} 11... Nf6 12. Nxe7 Qxe7 13. O-O Bb7 14. Qd3 O-O 15. Rd1 Rfd8 16. Bg5 Bc6 {1-0 (45) Vidit,S (2673)-Karavade,E (2418) Moscow 2017}) 12. Nxe7 Qxe7 13. b3 O-O 14. Be3 Qc7 15. O-O a5 16. Qd3 Ba6 {White should prevent ...b4.} 17. Rfd1 Rfd8 18. Rac1 Nc8 {[%cal Bb6c8,Bc8e7,Be7c6,Bc6a5,Ba5c4][%mdl 32]} 19. h4 Ne7 20. c4 bxc4 21. bxc4 Nc6 22. a3 (22. Qa3 $16) 22... a4 23. Qc2 Na5 24. Qxa4 Nxc4 25. Rc3 Rdc8 26. Rdc1 (26. Bh3 $16 Qc6 27. Qxc6 Rxc6 28. Rdc1) 26... Qc6 (26... Qa5 $14 27. Qxa5 Nxa5) 27. Qb3 $1 $18 Rab8 28. Qa2 $1 Qa4 29. Bh3 Rc7 30. Rb1 (30. Bg4 $1 $16) 30... Rxb1+ 31. Qxb1 {Threatens to win with Qb8+.} Rb7 $36 {[%mdl 2048] Black has good play.} 32. Qd3 Qc6 33. Bc1 Kf8 (33... h6 $11) 34. Qf3 $16 {Hoping for Qf5.} Kg8 35. Kh2 (35. Qg4 $16 {Black must now prevent Qc8+.} Rc7 36. Bf1) 35... Rb8 {[#]} (35... Qb6 $11) 36. Rb3 (36. h5 $1 $16) 36... Rxb3 $11 37. Qxb3 Qb5 (37... Bb7 {seems wilder.} 38. Bg2 Kf8 39. f3 Ke7 40. Bf1 Na5) 38. Qc2 Kf8 39. Bf1 Ke7 40. Bg5+ Ke8 41. Bd2 Qc6 (41... Qb6 $11 42. Bg5 h6) 42. Bb4 $16 Bb5 {[#]} (42... Ke7 $16 {was necessary.}) 43. Bd3 (43. a4 $1 $18 {[%cal Ra4b5][%mdl 512]} Ba6 (43... Bxa4 44. Qxc4) 44. Bxd6) 43... Ke7 44. Qe2 h6 45. Qc2 (45. a4 $16 Ba6 46. f4) 45... Kd7 (45... Nb6 $11) 46. Kg1 Ke7 47. Qc3 Kd7 48. Qb3 Ke7 49. Qd1 Ke8 50. Qe2 Ke7 51. Qc2 (51. Kh2 $16) 51... Kd7 (51... Nb6 $11) 52. Bf1 Ke7 53. Qd1 Ba6 54. Qg4 ({White should play} 54. h5 $16) 54... Kf8 (54... Bb7 $11) 55. Qe2 Ke8 56. Kh2 (56. Qc2 $16) 56... Bb5 57. Qc2 Kd7 58. Bg2 (58. Bd3 $16) 58... Ke7 59. Qc3 Ke8 60. Qf3 (60. Bf1 $14) 60... Kf8 61. h5 Ba6 (61... Nb2 $11 {keeps the balance.}) 62. Qf5 (62. Qd3 $16) 62... Kg8 $11 63. Qg4 Kf8 64. Qd1 Ke7 65. Qb3 (65. Bf1 $16) 65... Bb5 66. Qc3 Ke8 67. Qc2 Kd7 68. Kg1 ({Better is} 68. Bf1 $16) 68... Ke7 69. Bf1 Kd7 (69... Nb6 $11 {remains equal.} 70. Qxc6 Bxc6) 70. Bd3 Ke7 71. Qd1 Ke8 72. Bc2 (72. Kh2 $16) 72... Ke7 73. Bb3 Ba6 74. Qf3 Kf8 75. Kh2 Bb5 76. Qf5 Kg8 77. Qf3 Kf8 78. Qd3 Ke7 79. Qc2 (79. a4 $5 {[%cal Ra4b5]} Ba6 80. Qc2 $16) 79... Kd7 80. Kg1 Ke7 81. Qd1 Ba6 82. Bc2 Bb5 83. Bd3 Ba6 (83... Ke8 $1 $11) 84. Bf1 $16 Bb5 85. Qc2 Kd7 86. a4 Ba6 87. Be1 Ke7 88. Bd3 Ke8 89. Qb3 Qc7 90. Qb4 Ke7 91. Bf1 (91. Bc3 $16) 91... Ke8 (91... Qc6 $1 $11) 92. f3 Ke7 93. Bf2 Ke8 94. Bd3 Ke7 95. a5 Ke8 96. Kh2 Ke7 97. Bb6 ({White should try} 97. Bf1 $16) 97... Qc6 98. Bf1 Ne3 99. Bxe3 Bxf1 {Precision: White = 41%, Black = 37%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.10"]
[White "Popov, Ivan"]
[Black "Tu, Hoang Thong"]
[Result "1-0"]
[ECO "B56"]
[WhiteElo "2581"]
[BlackElo "2416"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,95,25,21,27,28,21,22,24,86,83,81,87,103,93,101,91,135,137,143,134,185,160,224,225,242,254,279,275,272,281,273,277,310,305,306,292,300,295,309,304,356,347,360,354,382,373,383,379,356,368,395,317,640,639,627,603,790,773,949,959,1144,1079,1505,1456,6693,6075,29958,11806,29968,29975,29971,12241,2449,2302]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. f3 e5 7. Nb3 Be7 8. Be3 a5 9. Bb5 O-O 10. Qd2 Na7 {B56: Classical Sicilian: Unusual Lines} 11. Bxa7 Rxa7 12. O-O-O Be6 {LiveBook: 7 Games. White has an edge.} 13. Qe3 (13. Kb1 Ra8 14. g4 Rc8 15. h4 Nd7 16. Nd5 Bxd5 17. Qxd5 Nb6 18. Qd3 {0-1 (46) So,W (2780)-Vidit,S (2718) chess.com INT 2018}) 13... Ra8 14. Kb1 Qc7 15. Rd2 Nd7 $146 (15... h6 $11 {keeps the balance.}) ({Predecessor:} 15... Rfd8 16. Rhd1 Rac8 17. a3 b6 18. g4 Nd7 19. g5 Nf8 20. f4 {1-0 (20) Ivanauskas,R (2246)-Chan,A ICCF email 2015}) 16. Bxd7 $16 Qxd7 {[#]} 17. Nc5 $1 {[%cal Rc5d7]} Qc6 18. Nxe6 fxe6 {[#]} 19. a4 $1 Rfc8 20. Nb5 Qc4 21. b3 $36 {[%mdl 2048] Keeping Black busy.} Qb4 (21... Qc6 $16 {keeps fighting.}) 22. Kb2 $18 d5 (22... Ra6 $16 {is a better defense.} 23. Rhd1 d5) 23. exd5 Bc5 24. Qd3 exd5 25. Qxd5+ Kh8 {Black hopes to continue with ...Bd4+.} 26. Rhd1 h6 27. Qxe5 Be7 {Hoping for ...Bf6.} 28. c3 Qh4 29. g3 Bf6 30. Qf5 ({Much less strong is} 30. gxh4 $6 Bxe5 31. Kc2 b6 $18) 30... Qg5 31. Qxg5 Bxg5 32. Rd7 Re8 33. f4 ({Don't do} 33. Rxb7 Re2+ 34. Kb1 Bf6 $18) 33... Bf6 34. Nc7 Re2+ 35. R1d2 Rxd2+ 36. Rxd2 {[%mdl 4096] Endgame KRB-KRN} Rc8 37. Rd7 Kh7 $2 (37... Rd8 38. Rxd8+ Bxd8) 38. Nd5 Kg6 39. Nxf6 gxf6 40. Rxb7 {KR-KR} Re8 41. b4 Re2+ 42. Kb3 axb4 43. cxb4 {[%cal Bc3b4,Bb4b5][%mdl 32]} Rxh2 44. a5 {[%cal Ba4a5,Ba5a6][%mdl 32]} Rh3 45. b5 Rxg3+ 46. Kb4 Rg4 47. a6 Rxf4+ 48. Kc5 {Precision: White = 95%, Black = 33%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.11"]
[White "Nitin, S.."]
[Black "Tran, Tuan Minh"]
[Result "0-1"]
[ECO "B53"]
[WhiteElo "2408"]
[BlackElo "2556"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,70,0,11,4,16,14,0,0,0,-6,8,0,15,0,8,0,0,0,7,-3,-8,-9,-3,-11,-11,-11,-6,-18,-15,-46,-20,-20,-31,-83,-33,-52,-63,-53,-52,-81,-82,-137,-78,-78,-40,-105,-105,-150,-154,-153,-147,-228,-224,-282,-276,-515,-529,-516,-527,-518,-527,-566,-553]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qe3 g6 6. Be2 {B53: Sicilian: 2...d6: Lines with Qxd4} Bg7 7. O-O Nf6 8. h3 {The position is equal.} (8. Rd1 Be6 9. h3 O-O 10. Nc3 Qc7 11. a3 Rac8 12. Rb1 a6 {½-½ (84) Demchenko,A (2679)-Sarana,A (2630) chess.com INT 2019}) 8... O-O 9. Rd1 Nd7 10. Nc3 b6 11. b3 Bb7 12. Bb2 Rc8 13. a3 $146 a6 14. Rd2 b5 15. Nd1 Qb6 16. Bxg7 Kxg7 17. Qxb6 Nxb6 18. Ne3 Nb8 {[%cal Bc6b8,Bb8d7,Bd7c5][%mdl 32]} 19. Rd4 N8d7 20. Nd2 Nc5 21. Bg4 (21. a4 $15) 21... Rcd8 22. Rb4 Bc6 {...a5 is the strong threat.} 23. a4 Ra8 24. a5 Nc8 25. Be2 (25. Bxc8 $142 Raxc8 26. f3) 25... e5 (25... Na7 $142 26. c4 e6) 26. c4 $17 {[%cal Rc4b5]} Ne7 27. cxb5 ({Better is} 27. Nd5 $15 Bxd5 28. exd5) 27... axb5 28. Rxb5 Bxb5 29. Bxb5 Rfb8 30. Bc4 {[#]} (30. Bf1 $17) 30... Nc6 $1 $19 31. Nd5 Nxa5 32. b4 $2 (32. f3) 32... Nxc4 {Black is clearly winning.} 33. Rxa8 Rxa8 34. Nxc4 Nxe4 35. b5 Rc8 {Accuracy: White = 26%, Black = 74%.} 0-1

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.12"]
[White "Saravana, Krishnan P."]
[Black "Chanda, Sandipan"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2352"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,72,25,28,30,29,22,21,12,15,11,21,14,24,35,14,0,10,10,20,4,9,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,16,8,0,26,0,0,0,6,0,32,35,75,14,37,45,42,0,8,0,28]} 1. d4 f5 2. Nc3 Nf6 3. Bg5 d5 4. Bxf6 exf6 5. e3 c6 6. Bd3 Be6 7. Nge2 {A80: Dutch Defence: Unusual White second moves} (7. Qf3 g6 8. Nge2 Nd7 9. O-O-O Qc7 10. h3 O-O-O 11. g4 fxg4 12. hxg4 Be7 13. Nf4 Bf7 14. Rh6 Nf8 15. Rdh1 Kb8 16. Nce2 Bd6 {½-½ (34) Grischuk,A (2785)-Svidler,P (2746) Riga 2013}) 7... g6 8. h4 h5 9. Qd2 Nd7 10. Nf4 Bf7 11. Nce2 Bd6 12. b3 $146 ({Predecessor:} 12. f3 Qe7 13. c3 {0-1 (37) Laurenti,S (1823)-Bonafede,A (2107) Porto San Giorgio 2004}) 12... Qe7 13. Kf1 Ne5 14. dxe5 fxe5 15. Nh3 e4 16. Ng5 ({Don't play} 16. Qc3 O-O $17) 16... Be5 17. Rc1 Bf6 18. Nxf7 Kxf7 19. g3 Rad8 20. Kg2 exd3 21. cxd3 d4 22. exd4 Bxd4 23. Rhe1 Qd6 24. Nf4 Be5 25. Nh3 Bf6 26. Re3 Rhe8 27. Rce1 Rxe3 28. Rxe3 c5 29. Qe2 Qc6+ 30. Kh2 Re8 31. Qd2 b5 32. Rxe8 Qxe8 {[#]} 33. Qh6 ({Better is} 33. Qa5 $1 $16) 33... Qf8 34. Qf4 Qd8 35. Qh6 {aiming for Qh7+.} Qf8 36. Qf4 Qd8 {Accuracy: White = 52%, Black = 83%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.13"]
[White "Gukesh D"]
[Black "Zou, Chen"]
[Result "1-0"]
[ECO "E67"]
[WhiteElo "2529"]
[BlackElo "2397"]
[Annotator "TA"]
[PlyCount "105"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,105,41,42,58,60,84,83,72,63,81,63,63,45,43,29,76,88,110,97,117,113,136,123,123,145,187,7,8,8,7,9,75,70,76,81,121,121,141,134,138,131,143,124,470,468,586,581,680,679,670,666,634,408,758,721,699,413,721,721,721,721,714,714,531,487,1907,1881,1600,1518,979,851,6923,6287,6111,5962,4602,1739,29979,29978,29979,29980,29980,29980,29981,29982,29990,29991,29991,29992]} 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. Qc2 Re8 9. Rd1 c6 10. e4 Qa5 {E68: King's Indian: Fianchetto: 6...Nbd7 7 0-0 e5 8 e4} (10... a5 11. b3 exd4 12. Nxd4 Nc5 13. Bf4 Ng4 14. h3 Ne5 15. Be3 Qe7 16. f4 Ned7 17. Re1 Na6 18. a3 Ndc5 19. Bf2 {1-0 (61) Bologan,V (2732)-Radjabov,T (2788) Astana 2012}) 11. h3 b5 12. cxb5 cxb5 {White is better.} 13. a4 $146 ({Predecessor:} 13. Qb3 Rb8 14. dxe5 dxe5 15. Ng5 Rf8 16. Be3 h6 17. Nf3 a6 18. Ne1 Re8 19. Rac1 Nb6 20. Nd5 Nfxd5 21. exd5 Bb7 22. Nd3 Nc4 {½-½ (22) Masic,L-Minic,D Novi Travnik 1969}) 13... bxa4 14. Rxa4 Qc7 15. Qe2 Nb6 16. Nb5 Qe7 17. Ra3 exd4 18. Nfxd4 Bb7 {[%cal Rf6e4]} 19. Bf4 Nxe4 20. Re3 $1 {Strongly threatening Bxe4.} d5 {[#]} 21. Nc7 $1 Qb4 22. Nc2 $2 (22. Nxa8 Bxd4 23. Nxb6 Bxe3 $11) (22. Qb5 $18 Bf8 23. Nxe8 (23. Nxa8 Rxa8 24. Qxb4 Bxb4 $16) 23... Qxb5 24. Nxb5 Rxe8 25. Nxa7) 22... Qxb2 $11 23. Nxe8 Rxe8 24. Na3 Qb4 {[#]} (24... Bc6 $11 {keeps the balance.}) 25. Qb5 $1 $36 {[%cal Rb5b4][%mdl 2048] White has good play.} Qxb5 26. Nxb5 Nc4 27. Ree1 Nb2 28. Rb1 Rd8 29. Nxa7 {Hoping for Re2.} Ra8 30. Be3 {Re2 is the strong threat.} d4 $2 {[%mdl 8192]} (30... Nd3 $16 {is a better chance.}) 31. Bf4 $18 f5 32. Rxb2 Rxa7 33. Bb8 d3 34. Rbb1 d2 35. Rf1 ({Less strong is} 35. Bxa7 dxe1=Q+ 36. Rxe1 Kf7 $18) 35... Bd4 (35... Ra3 $142 36. Rxb7 Rd3) 36. Bxa7 Bxa7 37. Rbd1 ({Not} 37. Rxb7 Bxf2+ 38. Kh2 Bxg3+ 39. Kh1 (39. Kg1 Bf2+ 40. Kh2 Bg3+ 41. Kh1 d1=Q $16) 39... d1=Q $16) 37... Ba6 (37... Bb6 $142 38. Bxe4 fxe4 39. Rxd2 e3) 38. Bxe4 fxe4 39. Rxd2 Bxf1 40. Kxf1 {[%mdl 4096] Endgame KR-KB} Bc5 41. Re2 e3 (41... Kf7 $142 42. Rxe4 Bf8) 42. fxe3 Kf7 43. Kg2 Kf6 44. Kf3 Ke5 45. Rb2 Bf8 46. Rb5+ Kf6 47. Ke4 h5 48. Rb6+ {White mates.} Kf7 49. Kd5 Bh6 50. e4 Be3 51. Rb7+ Kf6 52. e5+ Kg5 53. e6 {Accuracy: White = 73%, Black = 22%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.14"]
[White "Nasanjargal, Urtnasan"]
[Black "Xu, Minghui"]
[Result "1-0"]
[ECO "D30"]
[WhiteElo "2503"]
[BlackElo "2293"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,95,16,12,3,18,14,0,19,17,20,16,32,31,25,33,31,35,35,21,10,21,21,16,15,9,11,4,12,10,15,9,10,0,0,0,0,0,3,0,39,32,100,102,100,98,95,89,165,175,171,171,171,171,186,166,173,168,213,170,225,231,250,247,228,240,297,299,274,271,495,485,580,551,566,537,529,579,29966,218]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O Nbd7 8. Qc2 c6 9. Rd1 b6 10. b3 a5 {E11: Bogo-Indian} 11. Bc3 Bb7 12. Nbd2 c5 {The position is equal.} 13. Ne5 cxd4 14. Bxd4 {[#]} Bc5 $146 ({Predecessor:} 14... Nxe5 15. Bxe5 Qc8 16. Rac1 dxc4 17. Bxf6 Bxf6 18. Qxc4 Bxg2 19. Kxg2 {1-0 (56) Giri,A (2773)-Topalov,V (2798) Stavanger 2015}) 15. Qb2 Bxd4 16. Qxd4 Nxe5 17. Qxe5 Qb8 18. Qd4 dxc4 19. Bxb7 Qxb7 20. Nxc4 b5 21. Nd6 Qa6 22. Rac1 Rfd8 {[#] aiming for ...Ne8.} 23. e4 b4 24. Rc4 Rd7 25. Rd2 h6 26. e5 Nd5 27. Qg4 Rad8 28. Qh5 Kf8 29. Rd3 Rxd6 (29... Kg8 $14) 30. exd6 $16 Qxd6 31. Rf3 {[%csl Gf3][%cal Rh5f7]} Qd7 32. Qe5 $40 {[%mdl 128] White is out for blood.} Qd6 (32... Kg8 $16) 33. Qxd6+ $18 Rxd6 {[%mdl 4096] Endgame [#] KRR-KRN} 34. Rc8+ $1 Ke7 35. Ra8 {Threatens to win with Ra7+.} f5 36. Rxa5 Rc6 37. Rd3 Rc2 38. Rd1 Kf6 (38... Nc3 $142 39. Ra7+ Kf6) 39. Ra6 Nc3 40. Re1 Ne4 41. h4 Kf7 42. f3 Nxg3 43. Rexe6 ({Weaker is} 43. Raxe6 Rxa2 44. Re7+ Kg8 $16) 43... f4 $2 (43... Rxa2 {was worth a try.} 44. Rf6+ Ke7 45. Rxh6 Rxa6 46. Rxa6 Ne2+ 47. Kf2 Nf4) 44. Rec6 Rb2 45. Ra7+ Kg8 46. Rcc7 Nf5 47. h5 Kh8 48. Ra8+ $2 {Accuracy: White = 76%, Black = 41%.} (48. Rc8+ {mates} Kh7 49. Raa8 g5 50. Ra7+ Ng7 51. Rcc7 Rb1+ 52. Kg2 Re1 53. Rxg7+ Kh8 54. Rh7+ Kg8 55. Rxh6) 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.15"]
[White "Wang, Shixu B"]
[Black "Nguyen, Anh Khoi"]
[Result "1/2-1/2"]
[ECO "E73"]
[WhiteElo "2362"]
[BlackElo "2484"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,53,56,47,45,36,34,43,35,45,55,79,85,96,66,80,64,83,67,94,58,65,20,16,25,36,16,29,-20,-9,-22,-7,-20,-18,-19,-25,-20]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c5 7. d5 h6 8. Be3 e6 9. Qd2 exd5 10. exd5 Kh7 11. h4 {E74: King's Indian: Averbakh Variation: 6...c5} (11. h3 Re8 12. Bd3 b5 13. Nxb5 Ne4 14. Bxe4 Rxe4 15. Rc1 a6 16. Nc3 Rxc4 17. a3 Nd7 18. Nf3 a5 19. O-O Qb6 20. Qc2 Rb8 {½-½ (38) Ponomariov,R (2723)-Grischuk,A (2752) Beijing 2011}) 11... Ng4 12. Bf4 Re8 13. Kf1 {White is slightly better.} Ne5 $146 ({Predecessor:} 13... a6 14. Bxg4 Bxg4 15. f3 Bc8 16. Ne4 Bf8 17. Bg5 Be7 18. Bxh6 Bf5 {1-0 (47) Toncheva,N (1802)-Goraj,B (1711) Mamaia 2017}) 14. Nf3 Nbd7 15. h5 {Strongly threatening Bxh6!} g5 {[#]} 16. Nxg5+ $1 hxg5 17. Bxg5 f6 18. Qc2+ {[%mdl 1024] White has strong compensation.} Kh8 19. h6 Bf8 20. Bh4 Be7 $1 21. f4 f5 22. Bxe7 ({Don't play} 22. fxe5 Bxh4 23. e6 Ne5 $15) 22... Qxe7 23. fxe5 Nxe5 24. Kg1 Bd7 25. Qd2 Rg8 26. Rf1 Rg3 27. Rh2 {Accuracy: White = 55%, Black = 69%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.16"]
[White "Nguyen, Duc Hoa"]
[Black "Rohith, Krishna S"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2450"]
[BlackElo "2363"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,111,23,22,28,36,20,28,22,26,27,43,38,43,29,25,0,29,34,32,33,38,27,18,22,25,14,50,23,37,28,33,19,6,0,41,39,44,0,0,0,45,24,24,24,24,24,24,24,24,25,38,38,38,38,37,33,37,10,10,10,14,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. g3 Be7 5. Bg2 O-O 6. Qc2 b6 {E06: Closed Catalan: Early deviations} (6... c5 7. dxc5 Qa5+ 8. Nc3 dxc4 9. O-O Nc6 10. Bg5 Qxc5 11. Bxf6 gxf6 12. Rfd1 f5 13. e4 Bf6 14. Rab1 Nb4 15. Qe2 Nd3 16. Ne1 Nxe1 17. Rxe1 {½-½ (40) Matlakov,M (2683)-Bacrot,E (2678) Bastia 2018}) 7. cxd5 exd5 {LiveBook: 16 Games} 8. Bf4 Bd6 $146 {White has an edge.} ({Predecessor:} 8... c5 9. O-O Bb7 10. Nc3 Nbd7 11. Rad1 c4 12. Nd2 Rc8 13. Nb5 a6 14. Nd6 Bxd6 15. Bxd6 Re8 16. Rfe1 b5 17. Bh3 Rc6 18. Bf4 Nf8 {0-1 (48) Goroshilov,V (2074)-Reshetnikov,A (2447) Moscow 2010}) 9. Bxd6 Qxd6 10. O-O Bb7 11. Nc3 Na6 12. Rfd1 Qe7 13. Ng5 {[%cal Bf3g5,Bg5h3,Bh3f4][%mdl 32]} h6 14. Nh3 Rfe8 15. Nf4 c6 16. Rac1 Nc7 17. Re1 Ne6 18. Nxe6 Qxe6 19. b4 Ne4 20. e3 Nd6 21. Qb1 Rac8 22. e4 dxe4 23. Nxe4 Nxe4 24. Rxe4 Qd7 25. Rce1 {[#] Black must now prevent Bh3!} Rxe4 26. Qxe4 Ba8 27. Qf4 Bb7 28. Qh4 Re8 29. Rxe8+ Qxe8 30. Qe4 Qxe4 31. Bxe4 $11 {[%mdl 4096] Endgame KB-KB} a6 32. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} b5 33. a5 Kf8 34. Kg2 Ke7 35. Kf3 Kd6 {The position is equal.} 36. Kf4 Bc8 37. h4 g6 38. g4 Be6 39. f3 Bd5 40. g5 h5 41. Bc2 Be6 42. Ke3 Bd5 43. Bd1 Be6 44. f4 Bf5 45. Bb3 Be6 46. Bc2 Bf5 47. Be4 Be6 48. Bf3 Bd5 {[#] Threatens to win with ...Bxf3.} 49. Be2 {f5! is the strong threat.} Be6 50. Bd1 Bf5 51. Bf3 Be6 52. Bg2 Bd5 53. Be4 {Hoping for f5.} Be6 54. Bc2 Bf5 55. Bb3 Be6 56. Bc2 {Precision: White = 66%, Black = 73%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.17"]
[White "Liu, Guanchu"]
[Black "Le, Minh Hoang"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2445"]
[BlackElo "2299"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,97,18,9,14,27,25,31,34,51,57,68,58,72,64,52,56,65,60,63,67,108,84,95,88,118,113,139,135,135,150,158,155,189,189,179,177,197,193,210,206,210,201,212,200,231,216,224,228,310,327,402,364,494,475,470,464,463,450,446,439,595,346,237,0,627,554,595,645,637,626,558,629,604,568,766,645,1146,1030,1433,1404,29981,29982,29982,29983,29983,29984]} 1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 Ne7 6. O-O Nd7 7. Nbd2 c5 8. c4 {B12: Caro-Kann: Advance Variation} (8. c3 Nc6 9. Nb3 c4 10. Nbd2 b5 11. Re1 b4 12. Nf1 Be7 13. Ng3 Bg6 14. Be3 O-O 15. h4 Bxh4 16. Nxh4 Qxh4 17. cxb4 Nxb4 {1-0 (35) Vachier Lagrave,M (2789)-Mamedyarov,S (2808) Paris 2018}) 8... Nc6 9. cxd5 exd5 10. dxc5 {White is slightly better.} Nxc5 11. Nb3 Be7 12. Be3 Ne6 $146 ({Predecessor:} 12... Nxb3 13. Qxb3 Qd7 14. Rad1 Be6 15. Nd4 O-O 16. Nxe6 fxe6 {½-½ (54) Balshaw,A (2311)-Morley,P (2345) ICCF email 2012}) 13. Nfd4 $36 {[%mdl 2048] White fights for an advantage.} Nexd4 14. Nxd4 Nxd4 15. Qxd4 O-O 16. Rad1 Qc7 17. Qxd5 Rfd8 18. Rc1 Qb8 19. Qa5 Be4 20. Qc7 Qxc7 21. Rxc7 Kf8 22. Rfc1 Bc6 23. Bf3 Bxf3 24. gxf3 b6 25. f4 Ke8 26. Rb7 {Threatens to win with Rcc7.} Rd7 27. Rcc7 Rxc7 28. Rxc7 $18 {[%mdl 4096] Endgame KRB-KRB} g6 29. b3 a5 30. Bxb6 a4 31. Ra7 Rxa7 32. Bxa7 axb3 33. axb3 {KB-KB} Kd7 34. Kf1 Kc6 35. Ke2 Kd5 36. Kd3 Bb4 37. Ke3 Ba3 38. Kd3 $2 {[#]} (38. Kd2) 38... Bb4 39. Be3 Be1 40. f3 Bb4 41. Bd2 Bc5 42. b4 {[%cal Bb3b4,Bb4b5][%mdl 32]} Be7 43. h3 h6 44. Be1 Bd8 45. Bf2 Be7 46. b5 Bc5 47. Bxc5 {White mates.} Kxc5 48. Ke4 Kxb5 49. Kd5 {Accuracy: White = 86%, Black = 26%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.18"]
[White "Kulkarni, Rakesh"]
[Black "Chen, Qi B"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2298"]
[BlackElo "2443"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,51,22,31,-22,16,16,22,16,35,32,39,13,37,41,46,36,95,93,105,109,152,141,140,35,68,38,115,106,101,117,110,98,165,164,164,166,219,220]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e6 7. g4 d5 8. exd5 Nxd5 9. Ne4 {B81: Sicilian Scheveningen: Keres Attack} ({White should try} 9. Bd2 $14) 9... Nf6 $146 ({Predecessor:} 9... Qc7 10. c3 Be7 11. Qf3 Bd7 12. Bg2 Nc6 13. Ne2 Ne5 14. Qg3 Bb5 15. Nd4 Nd3+ 16. Kf1 Nxc1+ 17. Nxb5 Qc4+ 18. Kg1 Ne2+ 19. Kh2 {0-1 (19) Rombaldoni,A (2453)-Vocaturo,D (2581) Hoogeveen 2010}) 10. Nxf6+ Qxf6 11. Bg2 {The position is equal.} Bc5 12. Be3 O-O 13. c3 Rd8 {White must now prevent ...e5.} 14. Qf3 Qxf3 15. Bxf3 Nd7 ({Black should play} 15... e5 $14 16. Nb3 Bxe3 17. fxe3 Ra7) 16. O-O-O $1 $16 Ne5 {Strongly threatening ...Bxd4.} 17. Nc6 Bxe3+ 18. fxe3 {[%cal Rd1d8]} Nxc6 19. Bxc6 $40 {[%mdl 128] Black needs to defend precisely.} (19. Rxd8+ $16 Nxd8 20. Rd1) 19... Rf8 $14 20. Bg2 Re8 (20... Ra7 $14) 21. Rd6 $16 Kf8 22. Rhd1 Rb8 23. c4 Ke7 {[#]} (23... e5 $16 {was worth a try.}) 24. c5 $1 $18 {White is clearly better.} a5 25. Rb6 Rd8 {[#]} (25... Ra8 $142 26. Bxb7 Ra7) 26. c6 $1 {Accuracy: White = 60%, Black = 37%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.19"]
[White "Fenil, Shah"]
[Black "Pichot, Alan"]
[Result "1/2-1/2"]
[ECO "C50"]
[WhiteElo "2360"]
[BlackElo "2584"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,59,10,27,24,15,16,28,3,50,24,33,30,16,20,41,11,11,11,11,11,11,15,18,11,11,11,11,11,11,12,11,5,5,5,38,0,0,0,48,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O Nf6 5. d3 d6 6. a4 a6 {C50: Hungarian Defence and Giuoco Pianissimo} 7. c3 Ba7 (7... O-O 8. Re1 a5 9. h3 h6 10. Nbd2 Be6 11. Bb5 Na7 12. d4 Nxb5 13. axb5 exd4 14. Nxd4 Re8 15. Nf1 Bc4 16. Ng3 d5 17. e5 Ne4 18. Nxe4 dxe4 19. Rxe4 Qd5 20. Qf3 Bxd4 21. cxd4 Re6 22. Rf4 {½-½ (22) Giri,A (2783)-Anand,V (2773) Wijk aan Zee 2019}) 8. Re1 h6 9. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1g3,Bg3f5][%mdl 32]} O-O 10. h3 Ne7 {LiveBook: 55 Games} 11. Nf1 Ng6 12. Ng3 c6 13. d4 {[#]} Re8 $146 ({Predecessor:} 13... exd4 14. Nxd4 Nxe4 15. Nxe4 d5 {½-½ (28) Yudin,S (2524)-Lysyj,I (2643) Khanty-Mansiysk 2016}) 14. dxe5 dxe5 15. Qxd8 Rxd8 16. a5 Ne8 17. Nf5 Nd6 18. Nxd6 Rxd6 19. Be3 Bxe3 20. Rxe3 Kf8 21. Ree1 f6 22. Rad1 Rxd1 23. Rxd1 {[#] Hoping for Rd8+.} Ke7 24. Nd2 Nf4 25. Nf1 h5 26. h4 Ng6 27. Be2 Nf4 28. Bc4 Ng6 29. Be2 Nf4 30. Bc4 {Precision: White = 60%, Black = 66%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.20"]
[White "Tran, Minh Thang"]
[Black "Li, Yankai"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2343"]
[BlackElo "2434"]
[Annotator "TA"]
[PlyCount "129"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,129,-2,-2,-2,-2,0,4,-21,-20,-27,-14,-29,-23,-31,-34,-30,-38,-55,-34,-54,-50,-46,-18,-30,-16,-50,-52,-51,-45,-71,-71,-64,-25,-22,-22,-30,-27,-25,-29,-22,-22,-29,-29,-25,-22,-29,-8,-8,-8,-8,-8,-8,-7,-7,-6,-6,-6,-10,0,0,0,0,-8,-121,-1,-8,0,0,0,0,0,0,0,-8,-25,-446,-456,-1192,-1057,-5405,-5720,-1901,-2016,-29952,-6520,-29959,-29959,-29963,-29964,-29959,-5104,-29964,-29966,-29964,-29965,-2291,-8,-8,-8,-8,-8,-8,0,-10,-8,-8,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 4. g3 g6 5. Bg2 Bg7 6. O-O Nge7 7. b3 O-O 8. Bb2 {A37: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3} d6 9. d3 Rb8 (9... Bf5 10. a3 Qd7 11. Re1 Bh3 {½-½ (48) Andreikin,D (2712)-Grischuk,A (2767) Moscow 2018}) 10. Nd2 Be6 11. Rb1 $146 ({Predecessor:} 11. a3 a6 12. Nd5 b5 13. e3 Qd7 14. f4 Bh3 15. Ne4 Nxd5 16. Bxh3 Qxh3 17. cxd5 {½-½ (77) Salles,L (2247)-Holm,K (2474) Oslo 2018}) 11... d5 12. cxd5 Nxd5 13. Nde4 b6 14. Ng5 Qxg5 15. Nxd5 Qd8 16. Nf4 Bd7 17. Nd5 Nd4 18. Qd2 Be6 19. Bxd4 exd4 20. Nf4 Bf5 21. Rfc1 a5 22. a3 Bh6 23. b4 $1 axb4 24. axb4 Qd6 25. Rc2 Rfc8 {Hoping for ...c4!} 26. bxc5 Rxc5 27. Rxc5 bxc5 28. Rxb8+ Qxb8 29. Bd5 Kg7 30. Kg2 Qe5 31. Bf3 Qd6 32. Qc1 Bxf4 (32... Kg8 {is more complex.} 33. h4 Be6 34. Kf1 Bh3+ 35. Kg1 Kg7) 33. Qxf4 Qxf4 34. gxf4 $11 {[%mdl 4096] Endgame KB-KB} Kf6 35. Kg3 Ke7 36. Kh4 f6 37. Kg3 Be6 38. Be4 (38. h4 $11 {remains equal.}) 38... Bb3 (38... f5 $1 $17 {[%cal Rf5e4]} 39. Bf3 Kf6) 39. h4 c4 40. dxc4 Bxc4 41. Kf3 $1 Ke6 42. Bc2 f5 43. Bd1 Kd5 44. Bc2 $2 {[%mdl 8192]} (44. h5 $11 {and White has nothing to worry.}) 44... Kc5 $19 45. h5 {[#]} (45. Ba4 $142 Kb4 46. Be8) 45... Kb4 $1 {[%cal Rb4c3]} 46. h6 Kc3 47. Ba4 {[#]} Kd2 $1 48. e3 d3 49. e4 fxe4+ 50. Kxe4 Ke2 51. Kd4 Ba6 52. f5 gxf5 53. f4 d2 54. Ke5 Ke3 $2 (54... Bd3 $19 55. Kf6 Kf3) 55. Kxf5 $11 {[#]The position is equal.} Bb5 $1 {[%mdl 512]} 56. Bb3 {[#]} (56. Bxb5 d1=Q) 56... Bc4 $1 {[%mdl 512]} 57. Ba4 {[#]} (57. Bxc4 d1=Q) 57... Bb5 $1 {[%mdl 512]} 58. Bb3 (58. Bxb5 d1=Q) 58... Be2 59. Ke5 $1 d1=Q 60. Bxd1 Bxd1 61. f5 Kf3 62. f6 {Strongly threatening f7.} Bb3 {...Kg4 is the strong threat.} 63. Kd6 $1 Kf4 {aiming for ...Kg5.} (63... Kg4 $5 64. Ke7 $8 Kg5 $11) 64. Ke7 Kg5 65. f7 {Accuracy: White = 46%, Black = 63%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.21"]
[White "Zhao, Yuanhe"]
[Black "Huang, Renjie"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2431"]
[BlackElo "2335"]
[Annotator "TA"]
[PlyCount "187"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,186,0,40,20,52,47,72,29,29,37,56,40,49,38,54,48,64,48,70,0,16,12,19,17,17,18,16,17,50,25,137,136,123,131,126,118,139,119,138,133,145,87,307,316,411,390,397,198,204,197,207,80,161,90,97,106,88,93,151,153,175,167,175,175,175,176,172,172,183,174,173,172,166,165,171,134,157,80,86,41,40,20,40,0,0,0,0,0,0,0,0,0,0,0,0,0,61,55,56,56,122,85,210,210,213,213,345,345,342,337,374,372,370,365,341,334,372,346,421,420,574,359,678,560,1174,956,12841,12841,7191,2886,1636,1464,5587,5583,5417,5387,4886,4318,1491,1411,12843,12844,12845,1155,1125,1125,942,837,12825,12832,12840,12840,12745,2357,1810,1760,29945,29943,6685,6677,11230,1665,29962,29948,29978,29961,29960,10396,29960,29964,4926,29980,29984,29984,29986,29987,29987,29988,29999]} 1. Nf3 Nf6 2. c4 c6 3. g3 d5 4. Bg2 dxc4 5. O-O g6 6. Na3 {A11: English Opening: 1...c6} Bg7 7. Nxc4 O-O 8. d3 {White is better.} (8. b3 Nbd7 9. Bb2 Nb6 10. Qc1 Nxc4 11. bxc4 Bg4 12. h3 Bxf3 13. Bxf3 Qc7 {0-1 (56) Aronian,L (2785)-Malakhov,V (2713) Doha 2016}) 8... Be6 9. Qc2 Nbd7 10. Bd2 Bxc4 11. Qxc4 e5 $146 ({Predecessor:} 11... Rc8 12. b4 e5 13. Rac1 Nb6 {1-0 (34) Kovacevic,B (2480)-Handler,L (2301) Oberwart 2011}) 12. b4 Nb6 13. Qc2 $1 Re8 14. Bg5 (14. e4 $1 $14) 14... h6 15. Bxf6 $1 Qxf6 16. Rab1 Rac8 17. Rfc1 Qe6 18. Nd2 Nd7 19. b5 Nb8 (19... cxb5 $1 $11 {remains equal.} 20. Qxc8 Rxc8 21. Rxc8+ Nf8) 20. Qa4 $1 $16 cxb5 21. Qxa7 Nc6 22. Qxb7 {[%cal Rc1c6][%mdl 64] Double Attack} Nd4 23. Bd5 $1 {[%cal Rd5e6]} Qf5 24. Rxc8 Rxc8 25. e3 (25. Bxf7+ $142 Kh7 26. Nf3 Nxe2+ 27. Kg2) 25... Ne2+ $2 (25... Rc2 $16 {was necessary.}) 26. Kg2 $18 Rc2 27. Ne4 Nc3 {[#]} 28. Rf1 (28. Rc1 $142 $3 {[%mdl 512]} Rxc1 29. Nd6 Nxd5 30. Nxf5 gxf5 31. Qa8+ (31. Qxb5 Nc7 $16) 31... Bf8 32. Qxd5 {[%mdl 64] Double Attack}) 28... Nxd5 29. Qxd5 h5 30. Qd8+ (30. Qxb5 $18 {Hoping for Qd5.} Rxa2 31. Rc1) 30... Kh7 (30... Bf8 $16) 31. Ng5+ (31. Kg1 $18) 31... Kh6 $16 32. h4 f6 33. Ne4 Rxa2 ({Better is} 33... Qe6) 34. Rc1 $36 {[%mdl 2048] Qe7 is the strong threat. White is in control.} Ra7 35. Qb6 Qd7 36. Nxf6 Qb7+ 37. Qxb7 Rxb7 $18 {[%mdl 4096] Endgame KRB-KRN} 38. Ne4 b4 39. Rb1 Bf8 40. Kf3 Kg7 41. Ke2 Kf7 42. Kd2 Ra7 43. Kc2 (43. Rc1 $142) 43... Ke6 44. Kb2 Ra3 45. Rd1 Kd5 46. f3 Be7 47. g4 Bxh4 48. g5 Ke6 49. Rh1 Kf5 50. Rxh4 {Strongly threatening Nf2.} Rxd3 $11 {KRN-KR} 51. Ng3+ {[%mdl 64] Discovered Attack} Kxg5 52. Re4 h4 (52... Rd2+ $11 53. Kb3 Rg2) 53. Rg4+ $14 Kf6 54. Ne4+ ({But not} 54. Rxh4 $6 Rxe3 55. Ne4+ (55. Rxb4 Rxf3 56. Rb6+ Kg5 $16) 55... Kf5 $18) 54... Kf7 (54... Kg7 $1 $14) 55. Rxh4 {Black must now prevent Rh7+.} Rxe3 {[#]} (55... Kg7 $16 56. Rg4 Rxe3) 56. Nd2 $1 $18 Rd3 {[#]} 57. Kc2 $1 {[%cal Rc2d3]} Rc3+ (57... Rd4 {keeps fighting.} 58. Rxd4 exd4) 58. Kd1 b3 59. Rb4 Re3 60. Nc4 Rc3 61. Kd2 Rc2+ 62. Kd3 Rf2 63. Ke3 Rc2 64. Nxe5+ Ke6 65. Nd3 g5 $2 (65... b2 66. Rb6+ Kf5 67. Rb5+ Kf6 68. Rb6+ Kf5 69. Rb5+ Kf6 70. Rb6+ Kf5) 66. Rxb3 Kf5 67. Nf2 Ra2 68. Rb5+ Kg6 69. Ng4 Kh5 70. Rd5 Kh4 71. Rd2 Ra4 72. Kf2 Kh3 73. Ne3 Rb4 74. Ra2 Rb3 75. Rc2 {White wants to mate with Rc7.} Kh4 76. Ng4 Kh3 77. Ne5 Rb5 78. Re2 Kh4 79. Kg2 Ra5 80. Re4+ Kh5 81. Ng4 {White threatens Re6 and mate.} Ra2+ 82. Kg3 {Intending Re6 and mate.} Ra6 83. Re5 Kg6 84. Nf2 Ra1 85. Nh3 Kh6 86. Rxg5 Rf1 87. Ra5 Rb1 88. Kg4 Rb4+ 89. f4 Rb6 90. f5 Rc6 {White mates.} 91. Re5 Rc2 92. Nf4 Rc1 93. f6 {[%csl Gf4,Gg4][%cal Re5h5]} Rc6 94. Rh5# {Accuracy: White = 60%, Black = 37%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.22"]
[White "Shyaamnikhil P"]
[Black "Bao, Khoa"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2429"]
[BlackElo "2277"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,65,39,8,16,39,66,34,45,13,66,62,80,78,81,74,72,68,101,81,77,67,104,114,129,82,156,162,189,187,179,171,163,168,181,161,225,225,236,220,222,220,335,290,362,360,492,489,452,300,296,301,339,331,358,339]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nb3 b5 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} (7... Be6 8. f4 exf4 9. Bxf4 Nc6 10. Qe2 Be7 11. O-O-O Qc7 12. g4 O-O 13. g5 Nd7 14. Qe3 Rac8 15. Kb1 {1-0 (60) Van Foreest,J (2612)-Nepomniachtchi,I (2763) Wijk aan Zee 2019}) 8. Bg5 Be7 9. a4 (9. Bxf6 $5 Bxf6 10. a4 $14) 9... b4 {White is slightly better.} 10. Bxf6 Bxf6 (10... bxc3 $11 11. Bxe7 (11. Bxg7 Rg8 $11) 11... Kxe7) 11. Nd5 $14 Nc6 $146 ({Predecessor:} 11... Bb7 12. Bc4 Bg5 13. O-O O-O 14. a5 Nd7 15. Ra4 Bxd5 16. Bxd5 {½-½ (65) Paramzina,A (2303)-Obolentseva,A (2113) St Petersburg 2015}) 12. a5 Be6 13. Bc4 ({Much worse is} 13. Nxf6+ $6 gxf6 14. Qf3 Rg8 $11) 13... O-O 14. Qd3 Ra7 15. O-O ({Reject} 15. Bxa6 Bxd5 16. exd5 e4 $17) 15... Bxd5 16. Bxd5 Qc7 17. Ra4 Rb8 18. c3 Rb5 ({Black should try} 18... Qd7) 19. Qc4 Ne7 20. Bxf7+ Kf8 21. Qe6 bxc3 22. bxc3 Rb8 23. Rb4 $40 {[%mdl 128] White attacks with force.} Nc6 {[#]} (23... Rxb4 $142 24. cxb4 Qc8 25. Qxc8+ Nxc8) 24. Rxb8+ $1 $18 Qxb8 25. Bh5 Re7 26. Qd5 Rb7 (26... Na7 $142 27. Be2 Qb7) 27. Nd2 Nd8 28. Be2 Qc7 29. Bxa6 Ra7 30. Bb5 Qxa5 31. Qxd6+ Be7 32. Qxe5 Rb7 33. Rb1 {Accuracy: White = 69%, Black = 47%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.23"]
[White "Miciano, John Marvin"]
[Black "Nguyen, Van Huy"]
[Result "1-0"]
[ECO "B19"]
[WhiteElo "2317"]
[BlackElo "2428"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,65,15,6,37,0,0,0,-14,-70,-60,-143,-35,-7,-26,-45,50,27,35,34,40,30,247,189,266,281,269,267,280,205,276,83,427,412,503,502,513,491,29992,29992,29992,29990,29993,29994]} 1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nf3 Nd7 7. h4 h6 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Be7 13. Ne4 Qb6 {B19: Classical Caro-Kann: 4...Bf5 main line} (13... Nxe4 14. Qxe4 Nf6 15. Qe2 Qd5 16. Kb1 Qe4 17. Qxe4 Nxe4 {½-½ (17) Bacallao Alonso,Y (2582)-Iturrizaga Bonelli,E (2628) Buenos Aires 2018}) 14. Kb1 Rd8 15. g4 Nxg4 {The position is equal.} 16. Rdg1 $146 (16. Rhg1 $1 $11 f5 17. Rde1) ({Predecessor:} 16. Rhg1 f5 17. Rxg4 fxg4 18. Nd6+ Bxd6 19. Qg6+ Kf8 20. Qxe6 Be7 21. Qf5+ {0-1 (35) Nozdrachev,V (2486)-Gaifullin,A (2448) St Petersburg 2018}) 16... f5 $15 17. Neg5 (17. Ng3 $15 c5 18. Qe2) 17... hxg5 {[#]} (17... Nxf2 $17 18. Qe3 hxg5 19. Qxf2 g4) 18. Rxg4 $1 {[%mdl 512]} Qa6 {White must now prevent ...Qxd3.} (18... fxg4 $2 19. Qg6+ Kf8 20. h6 $19) 19. c4 $1 Bf6 ({Black should play} 19... Nb6 $15 20. Ne5 Nxc4 21. Nxc4 fxg4 22. Qg6+ {[%mdl 64] Double Attack} Kd7) 20. Rxg5 Nc5 $1 {[%cal Rc5d3]} 21. Qe2 $1 Ne4 $1 22. Rg6 Kf7 $2 (22... c5 $11) 23. Be3 Qb6 {[#]} (23... Rh7 {might work better.} 24. Rhg1 c5) 24. Ka1 $1 $18 c5 {[%cal Rc5d4] [#]} 25. Ne5+ $1 Ke7 26. dxc5 Qb4 27. f3 $2 (27. Rxf6 $18 Kxf6 28. Rg1) 27... Nc3 $2 {[%mdl 8192]} (27... Rxh5 $16 28. Rhg1 (28. Rxh5 $2 {loses.} Bxe5 29. Bc1 Rd2 $19) 28... Nxc5) 28. Qh2 {Hoping for Rxf6.} Nd1 29. Bc1 {aiming for Rxf6!} Qxc5 {[#]} 30. Rxf6 $1 {[%mdl 576] Remove Defender} Kxf6 (30... gxf6 $18 31. Ng6+ {[%mdl 64] Double Attack} Ke8) 31. Qh4+ {White mates.} Kxe5 32. Bf4+ Kd4 33. Bd6+ {Accuracy: White = 52%, Black = 31%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.24"]
[White "Liu, Xiangyi"]
[Black "Quizon, Daniel"]
[Result "0-1"]
[ECO "B40"]
[WhiteElo "2427"]
[BlackElo "2268"]
[Annotator "TA"]
[PlyCount "114"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,114,17,64,60,63,43,49,53,65,60,70,58,46,27,21,20,55,54,57,32,32,32,32,35,37,18,41,39,58,29,25,46,37,35,37,26,35,13,154,134,107,110,269,163,364,158,112,75,77,0,41,23,18,-1,0,-38,0,-8,0,-43,0,0,0,-200,-186,-178,-163,-210,-158,-176,-131,-134,-95,-213,-201,-206,-106,-189,-205,-203,0,-96,-100,-553,-568,-774,-754,-743,-765,-710,-702,-687,-675,-717,-637,-677,-379,-371,-320,-2118,-1811,-29964,-29965,-12271,-11521,-5285,-5081]} 1. e4 c5 2. Nf3 e6 3. g3 d6 (3... d5 4. exd5 exd5 5. d4 Nf6 6. Bg2 Be7 7. O-O O-O 8. dxc5 Bxc5 9. Nc3 Nc6 10. a3 Re8 11. b4 Bb6 12. Bg5 d4 13. Bxf6 Qxf6 14. Nd5 Qd8 15. Nd2 Be6 16. Nf4 Bf5 17. Nd3 Qc7 {1-0 (33) Zvjaginsev,V (2642)-Rublevsky,S (2652) Tula 2019}) 4. Bg2 Nf6 5. Qe2 Nbd7 6. O-O {B40: Sicilian: 2...e6, Unusual lines} Be7 7. c3 O-O 8. d4 {White is slightly better.} e5 $146 ({Predecessor:} 8... Qc7 9. e5 dxe5 10. dxe5 Nd5 11. c4 {1-0 (27) Markidis,K (2370)-Hararis,G (1901) Achaia 2017}) 9. Rd1 Qc7 10. Na3 a6 11. Nc4 b5 12. Ne3 Bb7 13. Nf5 Rfe8 14. dxe5 dxe5 15. Nxe7+ Rxe7 16. Nh4 c4 17. Bg5 Rae8 18. Bh3 h6 19. Rxd7 $1 Nxd7 20. Bxe7 Rxe7 21. Nf5 Re6 22. Qg4 {[%csl Gf5][%cal Rg4g7]} g5 23. Qh5 Qc6 (23... Qb6 $11) 24. Bg2 $1 $16 Kf8 25. h4 Rf6 $2 (25... Rg6 $16) 26. Qg4 {And now Rd1 would win.} gxh4 $2 (26... Rg6 {was worth a try.} 27. Rd1 Nf6 28. Rd8+ Ne8 29. hxg5 Rxg5) 27. Qg7+ $2 (27. Rd1 $1 $18 {[%cal Rd1d7]} Rxf5 28. Qxf5) 27... Ke8 {...Rxf5! is the strong threat.} 28. Nxh4 Nc5 29. Qg4 ({Better is} 29. Rd1 $16 {Qg8+ would kill now.} Nd3 {[%mdl 64] Double Attack} 30. Qg8+ Ke7 31. Rd2) 29... Kd8 30. Re1 Kc7 31. Re2 Kb6 32. Bf3 Ka7 33. Kg2 Nd3 34. Qg8 Qb6 35. Qe8 Qc7 36. a4 $2 {[#]} (36. Qf8 $11 {and White stays safe.}) 36... Re6 $1 $19 {[%cal Re6e8]} 37. Qf8 bxa4 38. Nf5 Rg6 {White must now prevent ...Nf4+.} 39. Kh2 Rf6 {Hoping for ...Rxf5!} 40. Bg2 h5 41. Kg1 {[#]} (41. Rd2 $17) 41... h4 $1 {[%mdl 512]} 42. Nxh4 Qc6 (42... Qd6 $19 43. Qe8 Qb6) 43. Qe7 (43. Bf1 $17) 43... Qd6 44. Qe8 Qc6 ({But not} 44... a3 45. bxa3 Qxa3 46. Bf1 $17) (44... Nc1 $19 {is more deadly.} 45. Re3 Qd1+ 46. Kh2 Rxf2) 45. Qe7 $17 {[#]} Qe6 $1 $36 {[%cal Re6e7][%mdl 2048] Keeping White busy.} 46. Qd8 $2 {[%mdl 8192]} (46. Qf8 $17 {is more resistant.}) 46... Qb6 $19 47. Qd7 Rxf2 48. Rxf2 Qxf2+ 49. Kh2 Qxb2 {aiming for ...a3.} 50. Qxa4 Qxc3 51. Nf5 Qb4 52. Qd7 Qc5 53. Nd6 {[%csl Gd6][%cal Rd7b7]} Qc6 54. Qd8 $2 (54. Qxc6 Bxc6 55. Nxc4) 54... c3 55. Nxb7 Kxb7 56. Qxd3 c2 57. Qb3+ Ka8 {Accuracy: White = 35%, Black = 52%.} 0-1

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.25"]
[White "Le, Quang Long"]
[Black "Divya Deshmukh"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2412"]
[BlackElo "2266"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,61,39,65,54,109,100,148,149,144,148,167,150,150,144,176,177,233,210,248,226,330,334,328,322,316,320,318,312,396,392,585,578,571,548,1103,1080,1136,1128,1076,984,29981,5519]} 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7 5. O-O Be7 6. d4 O-O 7. d5 exd5 8. Nh4 Ne4 9. cxd5 Nd6 {E17: Queen's Indian: 4 g3 Bb7 5 Bg2 Be7} 10. Nf3 Bf6 11. Nc3 Na6 {LiveBook: 5 Games. White is slightly better.} 12. Bf4 Nc4 $146 (12... Bxc3 $14 13. bxc3 Qf6) ({Predecessor:} 12... Bxc3 13. bxc3 Nc5 14. Qc2 Qf6 15. Nd4 Rfe8 16. Rfe1 Ba6 17. Rad1 {1-0 (46) Artemiev,V (2595)-Belous,V (2569) Moscow 2014}) 13. Rc1 $16 Qe7 14. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Nd6 15. Nd4 Bxd4 16. Qxd4 f5 17. h4 Rae8 18. Rfd1 {[%cal Bf1d1,Bd1d4,Bd4f4][%mdl 32]} Ba8 (18... h6 {keeps fighting.} 19. e3 Rc8) 19. b4 $18 Rf7 20. a3 Ne4 (20... Bb7 $142 21. e3 Ra8) 21. Nxe4 fxe4 22. Qc4 Bb7 23. Rd4 e3 24. Bxe3 Qf8 25. h5 {[%cal Bh4h5,Bh5h6][%mdl 32]} Nb8 (25... d6 {might work better.} 26. Bh3 Rf6) 26. h6 g6 27. Rf4 b5 28. Qxc7 d6 29. Rxf7 Qxf7 30. Qxd6 Qf5 31. Rc7 {Precision: White = 85%, Black = 14%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.26"]
[White "Cao, Sang"]
[Black "Le, Huu Thai"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2385"]
[BlackElo "2265"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,69,25,31,27,22,20,14,10,65,0,78,85,75,72,77,74,91,62,83,99,107,114,114,114,97,112,89,8,88,96,88,100,98,93,131,130,197,205,188,193,196,187,185,193,201,35,47,39,76,62,814,814,713,471]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8 9. Nc3 h5 {LiveBook: 4 Games. C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4} (9... Ke8 10. h3 h5 11. Bg5 Be6 12. Rad1 Be7 13. Rfe1 Rd8 14. Rxd8+ Kxd8 15. b3 Ke8 16. Rd1 h4 17. Kf1 Rh5 18. Bc1 {½-½ (32) Anand,V (2773)-Nakamura,H (2746) Kolkata 2018}) 10. Ne4 Ke8 11. Re1 Be6 $146 {The position is equal.} ({Predecessor:} 11... Be7 12. Bf4 Be6 13. Rad1 Rd8 14. Rxd8+ Kxd8 15. Nfg5 Ke8 16. Rd1 Rh6 17. b3 {1-0 (41) Szelag,M (2476)-Faibisovich,V (2432) Krakow 2005}) 12. Neg5 Bc5 (12... Rd8 $11) 13. c3 (13. Nxe6 $14 fxe6 14. c3) 13... a5 (13... Bd5 $11) 14. Nxe6 $16 fxe6 15. Ng5 Ke7 16. Ne4 Bb6 17. Bg5+ Ke8 18. a4 Rf8 19. Rad1 Ne7 20. Be3 $1 Bxe3 21. Rxe3 ({Reject} 21. fxe3 $6 Rf5 $11) 21... Nd5 22. Red3 ({White should try} 22. Rg3 $16) 22... b5 (22... Rf5 $1 $11 {remains equal.}) 23. Nc5 $36 {[%mdl 2048] White is on the roll.} Ke7 {[#]} 24. Rg3 $1 {[%cal Rg3g7]} Rf7 25. Rg5 Rh8 26. g3 Rh6 (26... Nb6 $16) 27. Nb3 bxa4 28. Nxa5 Ke8 29. Nxc6 Rd7 30. Rd4 Nb6 {[#]} 31. g4 $2 (31. Rf4 $1 $18) 31... Rxd4 $14 32. Nxd4 Nc4 33. Rxg7 {Strongly threatening g5.} Nxb2 $2 {[%mdl 8192]} (33... hxg4 $14 34. Rxc7 (34. Rxg4 Nxb2 35. Rg8+ Kd7 $14) 34... Nxb2) 34. g5 $18 Rh8 35. Rxc7 {Precision: White = 62%, Black = 34%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.27"]
[White "Pham, Chuong"]
[Black "Nguyen, Thi Thanh An"]
[Result "1-0"]
[ECO "D27"]
[WhiteElo "2383"]
[BlackElo "2245"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,115,8,15,14,11,10,18,4,14,10,20,27,28,24,25,25,14,26,45,44,45,41,41,9,49,41,61,77,74,30,31,27,34,0,0,0,0,0,0,2,116,116,127,120,133,125,133,132,129,137,196,194,176,200,283,240,225,231,220,221,217,206,168,168,237,253,268,253,355,357,359,355,363,363,363,353,585,571,557,542,535,528,520,335,29979,29980,29980,29981,29981,29982,29982,29981,29982,29983,29983,29984,29984,29985,29985,29986]} 1. d4 d5 2. c4 dxc4 3. Nf3 Nf6 4. e3 e6 5. Bxc4 c5 6. O-O a6 7. dxc5 Qxd1 8. Rxd1 Bxc5 9. Nbd2 O-O 10. Nb3 {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} (10. Be2 Rd8 11. Nb3 Rxd1+ 12. Bxd1 Be7 13. Bd2 Nc6 14. Rc1 Ne4 15. Be1 Bd7 16. Nfd2 Nxd2 17. Bxd2 Rc8 18. Nc5 Be8 19. Be2 Nd8 20. Nd3 Rxc1+ 21. Nxc1 f6 {½-½ (21) Raznikov,D (2531)-Stukopin,A (2596) Arlington 2016}) 10... Be7 11. Bd2 Nc6 12. Be1 {The position is equal.} h6 $146 13. Rac1 Re8 14. Be2 e5 15. Nc5 e4 16. Nd2 Bxc5 17. Rxc5 Bg4 18. Bxg4 Nxg4 19. h3 Nf6 20. Nc4 Rad8 21. Rd6 Kf8 22. Bc3 Ke7 23. Bxf6+ gxf6 24. Rd2 Ke6 25. g4 Ne5 26. Rxd8 Nf3+ $1 27. Kg2 Rxd8 $11 {[%mdl 4096] Endgame KRN-KRN} 28. Kg3 Ne1 (28... Rd1 $1 $11) 29. Rc7 $16 b5 30. Rc6+ Ke7 31. Na5 Rd2 32. Rxa6 Rxb2 33. Nc6+ Kd7 (33... Ke8 $16 {might work better.}) 34. Nd4 $18 {[%mdl 64] Discovered Attack} Nd3 35. Rxf6 Rxa2 (35... Ke7 $142 36. Rxh6 Rxa2) 36. Nxb5 Ke7 37. Rf5 ({Don't play} 37. Rxh6 Rxf2 38. Nd4 f6) 37... Rc2 38. Nd4 Rc1 39. Ne2 Rc2 40. Nf4 $1 Kf8 (40... Rc5 $142) 41. Ng6+ Kg7 {[#]} 42. Ne5 $1 f6 {[#]} (42... Nxe5 $142 43. Rxe5 Rc4) 43. Nxd3 $1 exd3 {KR-KR} 44. Rd5 d2 45. e4 h5 46. f3 ({Not} 46. gxh5 Kh6 $18) 46... hxg4 $2 (46... Rb2 47. gxh5 Kh6) 47. hxg4 Kf7 48. Kf4 Ke6 49. Ke3 Rc5 50. Rxd2 Ke5 $2 {[#]} (50... Rc3+ $18 51. Kf4 Rb3) 51. Rd5+ $1 {White mates.} Rxd5 52. exd5 Kxd5 {KPP-KP} 53. Kf4 Ke6 54. g5 Kf7 55. Kf5 fxg5 56. Kxg5 Kg7 57. Kf5 Kf7 58. f4 {Accuracy: White = 84%, Black = 46%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.28"]
[White "Nguyen, Dang Hong Phuc"]
[Black "Nandhidhaa, P V"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "2376"]
[BlackElo "2240"]
[Annotator "TA"]
[PlyCount "146"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,146,0,-4,-12,11,14,23,-4,2,-31,-27,-53,-33,-77,-70,-79,-71,-102,-52,-66,-64,-75,-32,-43,-33,-107,2,-2,0,16,106,0,0,0,0,0,0,-18,0,-84,-84,-180,-152,-164,89,78,286,289,294,266,318,306,300,293,356,296,287,269,252,245,243,246,239,227,616,611,611,603,585,579,573,570,642,638,623,617,832,825,770,741,804,780,8262,5600,29968,29968,7921,29958,29975,29954,29990,29991,29991,530,530,522,522,522,522,494,343,335,335,238,279,279,280,280,280,280,280,280,29993,280,280,280,280,280,280,0,280,280,280,279,29981,29982,29982,145,145,145,145,145,29982,29982,29982]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Na3 {E11: Bogo-Indian} Bxa3 $146 ({Predecessor:} 8... Ne4 9. Bf4 Nd7 10. Qc2 f5 11. Rad1 g5 12. Bc1 Nd6 13. Ne5 Qe8 14. Qb3 Nxe5 15. dxe5 Ne4 {½-½ (25) Aronian,L (2809)-Radjabov,T (2724) Geneva 2017}) 9. bxa3 dxc4 10. Qc2 {White has an edge.} b5 11. e4 h6 12. Rfe1 Nbd7 13. Bb4 Re8 14. Rad1 Bb7 15. Nd2 Qb6 16. e5 {Strongly threatening Bc5.} Nd5 17. Ne4 $1 Nxb4 (17... a5 $5 {[%cal Ra5b4]} 18. Bd6 Ba6 $15) 18. axb4 a5 19. Nd6 (19. a3 $15) 19... Reb8 (19... axb4 $17 20. Nxe8 Rxe8) 20. f4 Nf8 21. f5 Rd8 (21... exf5 $11 22. Qxf5 Qc7) 22. fxe6 (22. Rf1 $16) 22... Nxe6 $11 23. Qf5 Qc7 24. Rf1 $36 {[%cal Rd6f7][%mdl 2048] White has good play.} Rf8 $1 (24... axb4 $2 25. Nxf7 Nxd4 26. Rxd4 $18) 25. h4 (25. Nxb7 Qxb7 26. Be4 Ng5 $17) (25. Be4 Ng5 $17) 25... Bc8 26. Qf2 ({Don't go for} 26. Be4 $2 Ng5 $19) (26. d5 $11 {remains equal.} cxd5 27. Bxd5) 26... axb4 $17 27. Be4 (27. Nxb5 $17 Qb6 28. Nd6 {[%mdl 64] Double Attack}) 27... Ra3 28. Bb1 c5 $2 (28... Nd8 $19 {And now ...Bg4 would win.} 29. Kh2 Qd7) 29. Nxb5 $16 {[%mdl 64] Double Attack} Qc6 $2 (29... Qe7 $16 {keeps fighting.}) 30. Nxa3 $18 cxd4 31. Nc2 Bb7 {[%csl Gb7][%cal Rc6h1]} 32. Kh2 d3 33. Nxb4 Qb5 {[#]} 34. Nxd3 $1 cxd3 35. Bxd3 Qxe5 36. Qf5 Qxf5 37. Bxf5 Ra8 38. Rd2 Nd4 $2 (38... Ra5 39. Bc2 Ba6) 39. Rxd4 Rxa2+ 40. Kh3 {[%cal Rd4d8]} ({Stronger than} 40. Kg1 Rg2+ 41. Kh1 Rf2+ 42. Be4 (42. Kg1 Rg2+ {[%mdl 64] Double Attack} 43. Kh1 Re2+ 44. Be4 Bxe4+ 45. Kg1 Rg2+ 46. Kh1 Rf2+ 47. Kg1 Rg2+ {[%mdl 64] Double Attack} 48. Kh1 Rf2+ 49. Kg1 Rg2+ $11 {[%mdl 64] Double Attack}) 42... Bxe4+ 43. Kg1 Rg2+ 44. Kh1 Rf2+ 45. Kg1 Rg2+ 46. Kh1 Re2+ 47. Kg1 Rg2+ $11) 40... Bg2+ 41. Kg4 {[%cal Rd4d8]} g6 42. Bb1 Rb2 43. Rc1 Rf2 44. Rf4 f5+ 45. Bxf5 $1 gxf5+ 46. Kxf5 {[%mdl 4096] Endgame KRR-KRB} Re2 47. Rc8+ Kg7 48. Rc7+ Kg8 49. Rd4 Re8 50. g4 h5 51. Kf6 hxg4 52. Rxg4+ {[%mdl 64] Double Attack} Kh8 53. Rgg7 (53. Rc5 $142 Be4 54. Kf7 Ra8 55. Rxe4 Ra7+ 56. Re7 Rxe7+ 57. Kxe7 Kg7 58. Rg5+ Kh7 59. Kf7 Kh6 60. Rc5 Kh7 61. Rh5#) 53... Be4 54. Rg5 Rf8+ 55. Ke5 Re8+ 56. Kf4 Bb1 57. Rc6 Rd8 58. h5 Rg8 59. Re5 Rf8+ 60. Kg5 Rg8+ 61. Kh6 Rd8 62. Re7 Bd3 $2 {[#]} (62... Bf5 $18 63. Rec7 Kg8) 63. Rce6 $2 (63. Rd7 $1 {[%mdl 512]} Rb8 (63... Rxd7 64. Rc8+) 64. Rxd3 Kg8 65. Rf6 Rc8 66. Rd7 Rb8 67. Rg7+ Kh8 68. Rfg6 Rf8 69. Rh7#) 63... Rg8 64. Rd6 Bf5 65. Rf6 Bb1 66. Rfe6 $2 ({White should play} 66. Rff7 $18 {Threatening mate with Rh7+!} Ra8 67. Ra7) 66... Bf5 $2 {[%mdl 8192]} (66... Bd3 $1 $11 {and Black has nothing to worry.} 67. Re8 Bf5) 67. Re5 Bc2 68. Re8 Bh7 $2 (68... Bb1 $18 69. R5e7 Bf5 70. Rxg8+ Kxg8 71. Rg7+ Kf8) 69. Rxg8+ Bxg8 70. Kg6 $2 (70. Rb5 {mates} Bf7 71. Rb4 Ba2 72. Kg6 Bg8 73. Rd4 Bh7+ 74. Kh6 Bg8 75. Rd6) 70... Bh7+ $16 71. Kg5 {Kh6 is the strong threat.} Bc2 72. Kh6 {[%cal Re5e8]} Bb3 $2 {[%mdl 8192]} (72... Kg8 $16 73. Kg5 Kf7) 73. Re7 Ba2 {[%mdl 32768] Accuracy: White = 45%, Black = 28%. . An unexpected result.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.29"]
[White "Chu, Wei Chao"]
[Black "Aaryan Varshney"]
[Result "1-0"]
[ECO "A05"]
[WhiteElo "2373"]
[BlackElo "2202"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,123,-19,0,-12,24,25,21,23,25,10,16,18,18,12,12,7,12,10,18,0,14,-15,-17,-13,-17,-20,10,14,54,47,59,59,59,59,59,59,63,58,65,0,0,0,0,0,112,50,91,91,97,92,94,94,148,148,148,148,150,150,148,148,151,143,345,345,345,345,345,345,345,320,513,501,462,443,666,864,836,777,713,683,1650,1632,1612,1507,1112,1021,12496,11504,6478,5434,29963,29961,6424,5189,29981,29982,29982,29983,29986,29987,29987,29988,29988,29989,29993,29994,29996,29996]} 1. Nf3 Nf6 2. d4 e6 3. c4 d5 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 O-O 7. O-O c6 8. Qc2 b6 9. a4 {E11: Bogo-Indian} a5 {LiveBook: 3 Games} 10. Rc1 $146 ({Predecessor:} 10. Na3 Ba6 11. cxd5 cxd5 12. Nb5 Nbd7 13. Rfc1 Bxb5 14. axb5 Rc8 15. Qd3 Ne4 16. Bf4 Bd6 17. Bxd6 Nxd6 {½-½ (26) Wang,Y (2690)-Sarana,A (2562) chess.com INT 2018}) 10... Na6 11. Ne5 {White has an edge.} Bb7 12. cxd5 cxd5 13. Nc6 Qd7 14. Nxe7+ Qxe7 15. Qb3 Nb4 16. Nc3 Ba6 17. Nb5 Rfc8 18. Bc3 (18. e3 {keeps more tension.} h6 19. Bxb4 axb4 20. Qd1 h5 21. Rxc8+ Rxc8 22. Bf1) 18... Qd7 (18... h5 {seems wilder.} 19. Be1 Qd7 20. Rxc8+ Qxc8 21. Bxb4 Bxb5 22. Bc3 Bxe2 23. Qxb6 Nd7) 19. Bxb4 {And now Bd2 would win.} (19. e3 {is more complex.} Bxb5 20. axb5 Rc7 21. Bf1 Rac8 22. Rd1) 19... Rxc1+ 20. Rxc1 Bxb5 21. Bxa5 Rxa5 (21... Bxe2 {with more complications.} 22. Qxb6 Qxa4 23. Qb4 Qb5 24. f3 Qa6) 22. axb5 Rxb5 23. Qc3 {Strongly threatening Qc8+.} Ra5 $1 24. Qc8+ Qe8 25. Qb7 Ra8 $1 26. Qxb6 Rb8 27. Qa6 $1 g6 (27... Rxb2 $2 28. Rc8 $18) 28. b4 (28. e3 $14) 28... Qf8 $1 $11 29. Bh3 Qxb4 ({Avoid the trap} 29... Rxb4 $2 30. Rc8 $18) 30. Bxe6 Qe7 (30... Kg7 $11 {keeps the balance.} 31. Bxf7 Rb6) 31. Bh3 ({White should try} 31. Bg4 $16) 31... Kg7 32. Bg2 Rb2 33. Bf3 $1 Qb4 {[#]} 34. Rd1 $1 Rd2 (34... h5 $142) 35. Rxd2 $16 Qxd2 36. e3 Qc2 37. Qd6 Qf5 38. Kg2 g5 39. h3 h5 $2 {[#]} (39... h6 $16 40. g4 Qe6) 40. Qe5 $1 $18 {[%cal Re5f5]} Qxe5 41. dxe5 {[%mdl 4096] Endgame KB-KN} Nd7 42. Bxh5 ({Less strong is} 42. Bxd5 Nxe5 43. f4 gxf4 $18) 42... Nxe5 43. Bf3 d4 $2 (43... Nd3) 44. exd4 Nc4 45. Kf1 f5 (45... Kf6 $142 46. Ke2 Nd6) 46. Ke2 Kf6 47. Kd3 Nd6 48. Kc3 g4 49. hxg4 fxg4 50. Bc6 Ke6 51. Kd3 Kf5 52. Bd7+ Kg5 53. Be6 Kh5 54. d5 Kg5 55. Kd4 Kh5 56. Ke5 {White mates.} Nc4+ 57. Kf6 Nd6 58. Ke7 Ne4 59. d6 Nc5 60. d7 Nb7 61. Bd5 Na5 62. d8=Q {Precision: White = 79%, Black = 40%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.10"]
[Round "5.30"]
[White "Stefanova, Antoaneta"]
[Black "Tobing, Daniel Hermawan Lum"]
[Result "1/2-1/2"]
[ECO "E71"]
[WhiteElo "2493"]
[BlackElo "2050"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,108,43,33,47,39,67,44,58,49,50,59,95,87,87,87,87,87,88,82,75,84,91,84,72,-12,-6,0,-9,-58,-56,-67,-59,-63,-72,-116,-100,-144,-92,-89,-91,-68,-7,-110,-6,-6,-6,-28,-40,-32,-12,-103,-18,-54,-54,-129,-127,-189,-193,-191,-176,-178,-177,-148,-154,-131,-70,-70,-68,-183,-8,-8,-8,-16,0,-8,-8,-23,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,0,0,-8,-8]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3 O-O 6. Be3 c5 7. Nf3 cxd4 8. Nxd4 Nbd7 {E90: King's Indian: Classical: Early deviations and 6 h3} (8... Nc6 9. Be2 Bd7 10. O-O Nxd4 11. Bxd4 Bc6 12. Qc2 a5 13. Rad1 Nd7 14. Bxg7 Kxg7 15. Bg4 Ne5 16. c5 Nxg4 17. hxg4 Qc8 18. cxd6 Qxg4 19. dxe7 Rfe8 {1-0 (43) Cheparinov,I (2711)-Amin,B (2709) Zagreb 2018}) 9. g4 Ne5 $146 ({Predecessor:} 9... Nc5 10. Qc2 Qa5 11. f3 Ne6 12. Rb1 Nd5 13. cxd5 Nxd4 14. Qf2 Qb6 {0-1 (23) Fortea Domeque,C-Simon Padros,E Manresa 1993}) 10. Be2 Bd7 {White is slightly better.} 11. Qd2 Rc8 12. b3 {[%cal Bb2b3,Bb3b4][%mdl 32]} Bc6 13. f3 a6 14. O-O Bd7 15. Rac1 Nc6 16. Nc2 Qa5 {White should prevent ...Nxg4.} 17. b4 Qd8 18. f4 b5 19. c5 (19. cxb5 $16 axb5 20. Rfd1 (20. Bxb5 Nxg4 21. hxg4 Bxc3 $14)) 19... dxc5 $11 20. Bxc5 {e5 is the strong threat.} Be6 21. Qxd8 Rfxd8 22. f5 Bc4 23. Bxc4 bxc4 24. Ne3 Rd3 25. Nxc4 Rxh3 (25... Bh6 $142 {Hoping for ...Nxb4!} 26. Rfd1 Rxh3) 26. Kg2 $17 Rh4 27. Ne3 Bh6 (27... e6 $15) 28. Kg3 (28. Ncd5 $1 $11 {keeps the balance.}) 28... Bxe3 (28... Bg5 $17 {Threatens to win with ...h5.} 29. Rcd1 Ne5 30. Bxe7 Nexg4 31. Bxf6 Nxf6) 29. Kxh4 $11 g5+ 30. Kg3 Bxc1 31. Rxc1 Ne5 {Black wants to play ...Nd3.} 32. Rd1 (32. Nd5 $1 $11 Nxe4+ 33. Kg2) 32... Nexg4 ({Much worse is} 32... Nfxg4 $6 33. Nd5 $11) ({Black should play} 32... Kg7 $17 33. a3 Nfxg4) 33. Nd5 Nxd5 34. Rxd5 $15 {[%mdl 4096] Endgame KRB-KRN} (34. exd5 $15 h5 35. a3) 34... Nf6 $17 35. Rd4 (35. Re5 $17 {keeps fighting.}) 35... e5 $19 36. fxe6 fxe6 37. Kf3 Kf7 38. Rd6 {[#]} a5 $1 {[%mdl 512]} 39. a3 (39. bxa5 Rxc5) 39... axb4 (39... h5 $17 40. e5 axb4 41. axb4 Nd5) 40. axb4 $15 h5 {And now ...e5 would win.} 41. Ra6 $1 {[#]} g4+ $2 (41... Rc7 $1 $19 {White must now prevent ...e5.} 42. e5 Nd5) 42. Kf4 $11 {[#]} g3 $1 {[%mdl 512]} 43. e5 (43. Kxg3 Nxe4+) 43... Ng4 44. Kxg3 (44. Ra3 {with more complications.} Rd8 45. Rxg3 Rd5 46. Bd6 Kg6 47. Ke4) 44... Nxe5 45. Kh4 Nd3 46. Kxh5 {The position is equal.} Nxc5 47. bxc5 Rxc5+ {KR-KR} 48. Kg4 Rf5 49. Ra4 Ke7 50. Rf4 Ra5 51. Kf3 e5 52. Rb4 Kd6 53. Ke4 Ra6 54. Ke3 Kd5 {Accuracy: White = 65%, Black = 58%.} 1/2-1/2

