[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.1"]
[White "Wang, Hao"]
[Black "Bogdanovich, Stanislav"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2718"]
[BlackElo "2536"]
[Annotator "TA"]
[PlyCount "167"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,167,25,24,29,37,48,14,37,12,51,39,39,0,43,39,58,38,39,38,40,39,37,39,43,35,54,44,56,58,83,85,84,76,106,70,100,102,108,106,99,64,52,47,35,41,73,49,66,0,0,0,20,0,0,0,0,-22,0,0,0,6,7,0,0,4,11,0,29,12,29,29,29,29,29,29,29,29,23,29,29,29,29,29,36,36,36,36,80,54,96,36,36,36,58,47,62,36,491,419,4414,4663,5133,5135,5025,5011,2801,1024,6363,1786,6395,6390,6142,1688,5688,5176,1735,1398,4217,2707,6009,5910,4552,4209,1572,1024,1009,1002,1002,995,995,987,987,987,955,791,481,243,3225,2960,4369,3632,3625,2122,29968,29970,29969,29967,29971,29964,29974,29975,29972,29970,29977,29978,29976,29979,29979,29980]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 d6 5. O-O Be7 6. c3 O-O {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} 7. Re1 Bd7 (7... a6 8. Ba4 Re8 9. Nbd2 Bf8 10. Nf1 h6 11. Ng3 b5 12. Bb3 Be6 13. Bxe6 Rxe6 14. a4 b4 15. d4 d5 16. dxe5 Nxe4 17. c4 Nxe5 18. cxd5 Nxf2 19. Kxf2 Ng4+ 20. Kf1 Rxe1+ 21. Qxe1 Qxd5 22. Qe4 Qd1+ 23. Qe1 Qd5 24. Qe4 Qd1+ 25. Qe1 {½-½ (25) Vachier Lagrave,M (2780)-Naiditsch,A (2721) Douglas 2018}) 8. a4 Re8 {The position is equal.} 9. Nbd2 Bf8 (9... a6 $5 {[%cal Ra6b5]} 10. Bc4 Na5 $11) 10. Nf1 h6 11. Ng3 Ne7 (11... a6 $5 {[%cal Ra6b5]} 12. Bc4 Qc8 $11) 12. d4 Ng6 13. h3 $146 ({Predecessor:} 13. dxe5 dxe5 14. Nh5 c6 15. Nxf6+ gxf6 16. Bc4 Be6 17. Bxe6 fxe6 18. Qe2 Qd7 19. Nh4 Nxh4 20. Qg4+ Qg7 21. Qxh4 f5 {½-½ (21) Grigoriants,S (2570)-Kobalia,M (2673) Moscow 2012}) 13... c6 14. Bd3 Qc7 15. Be3 a5 16. Qc2 Be6 17. Nd2 Nd7 18. Rad1 Rad8 19. Nh5 f6 20. Bc4 Bxc4 21. Nxc4 Kh8 22. Ng3 exd4 23. cxd4 ({Much weaker is} 23. Rxd4 $6 Nge5 $11) 23... b5 24. Nd2 bxa4 25. Qxa4 d5 26. exd5 cxd5 27. Rc1 Qb7 28. Qc2 Ne7 29. Nf5 (29. Nf3 $14) 29... Nxf5 $11 30. Qxf5 Bb4 {[#] Hoping for ...Rxe3!} 31. Bf4 {And now Rxe8+ would win.} (31. Red1 {feels hotter.} Nf8 32. Nb3 Ne6 33. Ra1 Qb6 34. Qd3) 31... Rxe1+ 32. Rxe1 Nf8 33. Rc1 Qd7 34. Qc2 Ne6 35. Be3 Ng5 36. Bxg5 hxg5 37. Nf1 Bd6 38. Ra1 Qb5 39. g3 Rb8 40. Ne3 Qxb2 41. Qxb2 Rxb2 42. Rxa5 {[%mdl 4096] Endgame KRB-KRN} Bb4 43. Rxd5 Be1 $1 {[%cal Re1f2]} 44. Ng4 Bc3 45. Nh2 Be1 46. Rf5 Kh7 47. Kf1 Kg6 48. g4 Rb1 49. Nf3 Bc3+ 50. Kg2 (50. Ke2 $16) 50... Rd1 $14 51. Rc5 Bb2 52. Rb5 Bc3 53. Rb7 Rd3 $2 {[%mdl 8192]} (53... Kh6 $14) 54. Rb3 $18 Rxf3 (54... Kf7 $142 55. Ng1 Ke6) 55. Kxf3 Bxd4 {KR-KB} 56. Rb4 Bc5 57. Rb5 Bd4 58. Ke2 (58. Rd5 $142 Be5 59. Rd7) 58... Be5 59. Kd3 (59. Ke3 $142 Bf4+ 60. Kf3) 59... Bd6 60. Ke4 Bc7 61. Rd5 (61. Kd5 $142 Bf4 62. Ke6) 61... Bb8 62. Rd8 Bc7 63. Rh8 Be5 64. Kd5 Bc3 65. Ke6 Bd4 66. f3 Bc5 67. Rh5 {[#] Intending f4 and mate.} Bf2 68. Ke7 Bc5+ 69. Ke8 {Strongly threatening f4!} Bd6 70. Kd7 Ba3 71. Ke6 Bc1 72. Kd5 Bb2 73. Ke4 (73. Rh8 $142 Bc3 74. Ke4) 73... Ba1 $2 (73... Be5 74. h4 Bg3 75. hxg5 f5+ 76. Ke3 fxg4 77. fxg4 Bd6) 74. Rh8 Bb2 75. h4 gxh4 76. Rxh4 f5+ 77. gxf5+ {White mates.} Kf7 78. Rh2 Bf6 79. Ra2 Bh4 80. Ra7+ Kf6 81. Kf4 Be1 82. Ra6+ Kf7 83. Kg5 Bf2 84. Rc6 {Accuracy: White = 61%, Black = 31%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.2"]
[White "Iturrizaga Bonelli, Eduardo"]
[Black "Popov, Ivan"]
[Result "1/2-1/2"]
[ECO "A17"]
[WhiteElo "2639"]
[BlackElo "2581"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,42,23,25,0,35,13,18,15,20,25,33,12,30,0,0,0,0,0,0,0,0,0,0]} 1. c4 Nf6 2. Nc3 e6 3. Nf3 d5 4. cxd5 exd5 5. d4 c6 6. Qc2 g6 7. Bg5 Be7 8. e3 Bf5 9. Bd3 Bxd3 10. Qxd3 O-O 11. Bxf6 Bxf6 12. h4 {D36: Queen's Gambit Declined: Exchange Variation: Main line (5 Bg5 c6 6 Qc2)} c5 $146 ({Predecessor:} 12... Qd6 13. h5 Nd7 14. O-O-O c5 15. hxg6 hxg6 16. dxc5 Qxc5 17. Kb1 Bxc3 18. Rc1 Qc4 19. Qxc3 Qxc3 20. Rxc3 {½-½ (27) Sanikidze,T (2549)-Negi,P (2639) Cappelle-la-Grande 2012}) 13. dxc5 Na6 14. Nxd5 Bxb2 15. Rd1 Qa5+ $1 16. Kf1 {Threatens to win with Qc2.} Rfd8 17. h5 {[#] hxg6 is the strong threat.} Nb4 {The position is equal.} 18. Qb3 {aiming for hxg6.} Nxd5 19. Rxd5 Rxd5 20. Qxd5 Rd8 $1 21. Qb3 {Strongly threatening Ng5.} Bf6 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.3"]
[White "Zhao, Yuanhe"]
[Black "Wen, Yang"]
[Result "0-1"]
[ECO "E04"]
[WhiteElo "2431"]
[BlackElo "2599"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,72,20,16,18,18,0,24,4,33,15,35,-14,0,-55,-50,-70,-85,-77,-16,-23,0,0,0,0,0,0,0,0,0,0,0,-45,-41,-41,-43,-43,-37,-45,-35,-44,-47,-115,-121,-152,-141,-193,-207,-230,-222,-218,-222,-366,-366,-602,-611,-731,-729,-1239,-1163,-1507,-718]} 1. Nf3 d5 2. d4 Nf6 3. c4 e6 4. g3 dxc4 5. Bg2 Nc6 6. Qa4 Bb4+ 7. Bd2 Nd5 8. Bxb4 {E04: Open Catalan: 5 Nf3} Ndxb4 9. Nc3 (9. O-O Rb8 10. Na3 O-O 11. Qb5 b6 12. Qxc4 Ba6 13. Nb5 Qe8 14. Rfc1 Nd5 15. Qxc6 Qxc6 16. Rxc6 Bxb5 17. Rc2 Rfc8 {½-½ (33) So,W (2780)-Caruana,F (2822) Saint Louis 2018}) 9... Bd7 {[#] Strongly threatening ...Nxd4!} 10. O-O {White has an edge.} a5 {[%cal Ba7a5,Ba5a4][%mdl 32]} 11. Qd1 {[%mdl 1024] White has compensation.} O-O 12. a3 Nd5 13. e3 {[#]} (13. Rc1 $11) 13... a4 $1 {[%mdl 512]} 14. Qc2 $146 (14. Nxa4 Nxd4) ({Predecessor:} 14. Nxa4 Nxd4 15. Qxd4 Rxa4 16. Ne5 Bb5 17. Rfc1 c3 18. b4 Re8 {½-½ (18) Lloyd,G (2337)-Voiculescu,F (2235) ICCF email 2011}) 14... Nxc3 15. Qxc3 Na5 ({Black should try} 15... b5 $17) 16. Nd2 Qe8 17. Rfe1 Bc6 18. Nxc4 Bxg2 19. Nxa5 Be4 20. Nc4 (20. Qxc7 f5 $17) 20... Qb5 21. Rac1 Rfd8 22. Ne5 f6 23. f3 Bd5 24. e4 Bb3 $36 {[%mdl 2048] Black has the initiative.} 25. Nd3 e5 26. d5 c6 27. f4 (27. Nc5 $1 $15) 27... cxd5 $17 28. fxe5 dxe4 29. Nf2 (29. Nc5 $17 Rac8 30. Qb4 Qxb4 31. axb4) 29... f5 $19 ({Don't play} 29... Qxe5 30. Qxe5 fxe5 31. Nxe4 $15) ({Resist} 29... fxe5 30. Nxe4 Rd3 31. Qc5 $15) 30. g4 Re8 31. gxf5 Rxe5 32. Nxe4 (32. Re3 $142) 32... Qb6+ (32... Rxf5 $2 33. Ng3 $19) 33. Nc5 $2 (33. Kg2 Rxf5 34. Qe3) 33... Rxf5 {And now ...Rg5+ would win.Black is clearly winning.} 34. Re3 {[%cal Rc5b3]} Rc8 35. Qb4 Qh6 36. Qe1 Qg5+ {Accuracy: White = 36%, Black = 69%.} (36... Rg5+ $142 37. Rg3 Rxg3+ 38. hxg3 Bd5) 0-1

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.4"]
[White "Van Wely, Loek"]
[Black "Cao, Sang"]
[Result "1-0"]
[ECO "A62"]
[WhiteElo "2612"]
[BlackElo "2385"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,71,57,52,45,51,46,122,118,124,120,114,97,96,92,55,49,44,31,41,49,38,38,65,14,128,115,239,249,240,243,243,248,244,239,283,263,377,379,429,392,453,460,484,494,784,773,745,724]} 1. d4 Nf6 2. c4 e6 3. g3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Re8 10. Bf4 a6 11. a4 Ne4 12. Nxe4 Rxe4 13. Nd2 Rb4 14. Ra2 {A62: Modern Benoni: Fianchetto Variation without early ...Nbd7} Qe7 15. b3 Be5 (15... g5 $14 16. Be3 b5) 16. Bxe5 $16 {White is better.} Qxe5 17. Nc4 Qe7 18. e4 Nd7 19. f4 Nb6 20. Ne3 a5 {[#]} 21. Re1 $146 {[%mdl 2048] White has the initiative.} ({Predecessor:} 21. f5 Bxf5 {0-1 (41) Ulybin,M (2529)-Cox,J (2385) Port Erin 2005}) 21... Bd7 22. e5 Re8 23. Rae2 Qf8 $1 24. Qa1 (24. exd6 $14 Rc8 25. f5) 24... Qg7 ({Much weaker is} 24... Rxb3 $6 {[#]} 25. e6 $1 $16 {[%mdl 512]}) (24... dxe5 $1 $11 25. fxe5 Rxb3) 25. Qc3 {Hoping for Nc2.} dxe5 (25... c4 $16) 26. Nc2 $18 {[%mdl 64] Trapped Piece} e4 27. Qxg7+ ({Weaker is} 27. Qxc5 Rxb3 28. Rxe4 Rxe4 $11) 27... Kxg7 28. Nxb4 cxb4 29. Rxe4 Rc8 30. d6 Kf6 (30... Be6 $142 31. R4e3 Rd8) 31. R4e3 Rc2 32. Bxb7 Be6 33. Rd1 {White is clearly winning.} Nd7 34. Bd5 h5 (34... Rc8 $142 35. Bxe6 fxe6) 35. Bxe6 fxe6 {[#]} 36. Re5 $1 {[%mdl 576] Promotion. Accuracy: White = 81%, Black = 43%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.5"]
[White "Demchenko, Anton"]
[Black "Gukesh D"]
[Result "0-1"]
[ECO "B24"]
[WhiteElo "2678"]
[BlackElo "2529"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,94,35,34,26,32,35,45,32,31,29,28,0,18,0,6,10,33,30,32,28,26,26,17,41,31,14,18,4,20,43,72,80,130,133,136,159,156,149,153,120,147,119,117,117,121,139,156,138,138,124,191,141,112,0,221,100,86,80,116,0,0,0,125,175,214,194,227,207,300,248,354,333,287,191,371,379,349,183,183,183,182,-12850,-6087,-29994,-29995,-29995,-29996]} 1. e4 c5 2. Nc3 Nc6 3. g3 Rb8 4. Nge2 (4. Bg2 b5 5. d3 b4 6. Nd5 e6 7. Ne3 g6 8. a3 b3 9. c3 Bg7 10. Nf3 Nge7 11. Nd2 Na5 12. Nec4 O-O 13. O-O {1-0 (65) Li,R (2564)-Kantans,T (2456) chess.com INT 2017}) 4... b5 5. Bg2 b4 6. Nd5 {B24: Closed Sicilian: 3 g3 sidelines} e6 7. Ne3 Nf6 8. O-O {White is slightly better.} Be7 9. a3 b3 $146 ({Predecessor:} 9... a5 10. axb4 axb4 11. d4 cxd4 12. Nxd4 Qb6 13. Nxc6 dxc6 {1-0 (38) Avramovic,Z (2238)-Nikolajevic,B (2170) Serbia 2008}) 10. c4 O-O 11. d3 d6 12. f4 Nd4 13. Nxd4 cxd4 14. Ng4 Nxg4 15. Qxg4 d5 16. cxd5 exd5 17. f5 dxe4 18. Bxe4 Bf6 19. Bf4 Rb5 20. Rac1 $36 {[%cal Ba1c1,Bc1c5,Bc5d5][%mdl 2080] White is on the roll.} Bb7 21. a4 $1 {[%cal Ra4b5]} Bxe4 22. dxe4 (22. axb5 Bxd3 23. Rf2 Bc2 $17) 22... Re5 23. Bxe5 Bxe5 24. Rc5 d3 25. Rd5 (25. Rxe5 $6 Qd4+ 26. Rf2 Qxe5 $14) 25... Qb6+ 26. Kg2 Bxb2 27. Qd1 ({Much weaker is} 27. Rxd3 $6 Bf6 $11) 27... Bf6 28. Qxd3 b2 29. e5 Bg5 (29... Qc6 $16 30. Kh3 (30. exf6 Rd8 $11) 30... Bg5) 30. Qb5 {Threatens to win with Qxb6.} Qe3 {next ...Qe4+ is good for Black.} 31. Qd3 (31. Kh3 $1 $16 Qe4 32. Qd3 Qxa4 33. Rb5) 31... Qb6 $1 $18 32. a5 (32. Rb5 $1 $18 {[%cal Rb5b6]} Qc6+ 33. Rf3) 32... Qc6 $16 33. Kh3 $1 Qh6+ 34. Kg2 {aiming for Rd6.} Qc6 {White must now prevent ...Rd8.} 35. Kh3 Qh6+ $1 36. Kg4 $1 Bc1 37. h4 $1 Qc6 {[#]} 38. Rb5 $1 a6 (38... g6 $142) 39. Rb3 Qa4+ (39... g6 {keeps fighting.}) 40. Kh3 $18 h5 41. Kg2 Kh7 $2 (41... Qxa5 {might work better.} 42. e6 Qe5 43. exf7+ Rxf7) 42. e6 Rd8 43. Qxd8 (43. Qf3 $142 Qg4 44. Qxg4 hxg4 45. exf7) 43... Qxb3 44. e7 Qb7+ 45. Kh3 $4 {[%mdl 8192] [#]} ({Weaker is} 45. Kg1 Be3+ 46. Kh2 b1=Q $17) (45. Rf3 $18 Bg5 46. Qd3) 45... b1=Q $1 $19 {[%cal Rb1f5] ( -> ...Qxf5+!)} 46. e8=Q {[#]} Qxf5+ $1 {[%mdl 576] Double Attack} 47. Kh2 (47. Rxf5 Qh1#) 47... Qc2+ {Accuracy: White = 63%, Black = 58%.} 0-1

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.6"]
[White "Mareco, Sandro"]
[Black "Liu, Guanchu"]
[Result "0-1"]
[ECO "A36"]
[WhiteElo "2666"]
[BlackElo "2445"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,56,16,16,12,0,29,30,25,15,19,0,0,0,0,-37,-17,-27,-29,-29,-34,-21,-21,-36,-46,-35,-28,-37,-47,-69,-43,-103,-123,-100,-105,-460,-357,-352,-375,-341,-352,-730,-728,-713,-693]} 1. c4 c5 2. g3 g6 3. Bg2 Bg7 4. Nc3 Nc6 5. e3 e5 6. Nge2 Nge7 7. a3 d6 8. O-O Be6 {A36: Symmetrical English vs ...g6: 4 Bg2 Bg7} (8... a5 9. d3 O-O 10. Bd2 Rb8 11. Qb3 Be6 12. Nd5 Bf5 13. Nxe7+ Nxe7 14. Rad1 Qd7 15. a4 Nc6 16. Bc3 Nb4 17. Bxb4 axb4 {1-0 (66) Klekowski,M (2489)-Arenas Vanegas,D (2449) Las Palmas 2018}) 9. Nd5 O-O 10. Nec3 Rb8 {White has an edge.} 11. b4 a6 $146 ({Predecessor:} 11... b6 12. b5 Na5 13. d3 Qd7 14. Re1 f5 15. Rb1 Kh8 16. Bd2 {0-1 (49) Hoang,T (2127)-Vasilevich,T (2368) Beijing 2008}) 12. bxc5 dxc5 13. Rb1 b5 {[%cal Bb7b5,Bb5b4][%mdl 32]} 14. d3 b4 15. Nxe7+ Nxe7 16. Na4 Qd6 17. axb4 cxb4 18. Qb3 Rfd8 19. Nb2 Nc6 20. Ra1 a5 $36 {[%mdl 2048] Black is pushing.} 21. Bd2 Bf5 22. Rfd1 (22. Rfb1 $15) 22... e4 $17 23. d4 {[#]} Bg4 $1 {aiming for ...Nxd4.} 24. Bxe4 $2 {[%mdl 8192]} (24. c5 $17 Bxd1 25. Rxd1) 24... Bxd1 25. Rxd1 {[#]} Nxd4 $1 {[%mdl 512]} 26. exd4 Qxd4 27. Bxb4 $2 (27. Bf4 Qxe4 28. Bxb8 Rxb8 29. Na4) 27... Qxe4 $19 28. Rxd8+ Rxd8 {Accuracy: White = 26%, Black = 73%.} 0-1

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.7"]
[White "Nguyen, Ngoc Truong Son"]
[Black "Xu, Yi"]
[Result "1/2-1/2"]
[ECO "D02"]
[WhiteElo "2647"]
[BlackElo "2520"]
[Annotator "TA"]
[PlyCount "42"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,42,0,5,10,22,-8,0,0,0,0,0,-2,0,-2,0,8,19,14,34,0,14,0,20,-10,0,-11,3,-28,-12,-6,0,-11,-12]} 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 4. e3 Nc6 5. Nbd2 e6 6. c3 cxd4 7. exd4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} Nh5 8. Bg3 (8. Be3 Bd6 9. Bd3 Nf4 10. Bxf4 Bxf4 11. g3 Bd6 12. O-O O-O 13. Re1 Bd7 14. h4 h6 {1-0 (44) Caruana,F (2822)-Aronian,L (2767) chess.com INT 2018}) 8... Nxg3 9. hxg3 g6 10. Bd3 Bg7 11. O-O O-O 12. Re1 f6 13. b4 $146 ({Predecessor:} 13. c4 dxc4 14. Bxc4 Nxd4 {½-½ (35) Laurent Paoli,P (2290)-Lemeaux,D (2344) Condom 2017}) 13... Bd7 14. a4 b6 15. Qb3 (15. b5 $5 {[%cal Rb5c6]} Na5 16. Nb3 $11) 15... Kh8 16. Rad1 Qc7 17. Nf1 Qd6 18. Ne3 Be8 19. Ba6 Rd8 20. Bb5 Rc8 21. Rb1 Bf7 {Accuracy: White = 38%, Black = 48%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.8"]
[White "Predke, Alexandr"]
[Black "Hoang, Canh Huan"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2611"]
[BlackElo "2394"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,85,42,42,42,57,49,66,58,60,62,122,97,156,112,168,119,240,243,220,150,198,156,154,160,231,160,154,110,260,143,471,461,585,414,414,414,411,411,394,409,404,395,389,327,316,323,357,324,530,530,529,529,608,443,599,587,616,593,2484,2044]} 1. Nf3 c5 2. e3 Nf6 3. d4 d5 4. dxc5 e6 5. c4 Bxc5 6. Nc3 Nc6 7. a3 a6 8. b4 Ba7 9. Bb2 O-O 10. Qc2 Qe7 11. Rd1 Rd8 12. Be2 d4 13. exd4 Nxd4 14. Nxd4 Bxd4 15. O-O {D40: Queen's Gambit Declined: Semi-Tarrasch with 5 e3} e5 16. c5 (16. Na4 Bg4 17. Bxd4 Rxd4 18. Rxd4 exd4 19. Bxg4 Nxg4 20. h3 Nf6 21. Nc5 a5 22. Qf5 axb4 23. axb4 Qe2 24. Qd3 Qxd3 25. Nxd3 Kf8 {½-½ (25) Markus,R (2615)-Perunovic,M (2597) Novi Sad 2018}) 16... g6 17. Na4 $146 {White is slightly better.} ({Predecessor:} 17. Bc4 Bg4 18. Rd2 Rd7 19. Qb3 Rad8 20. Re1 Kg7 21. h3 Bf5 22. g4 Bxg4 23. hxg4 Nxg4 {1-0 (33) Paulsen,D (2340)-Schlehoefer,R Germany 1987}) 17... Bf5 18. Qc1 Rac8 ({Better is} 18... Ne4 $14) 19. Nb6 $16 {Bxd4 is the strong threat.} Rc7 ({Black should try} 19... Rc6) 20. Bc4 Bg4 (20... Rc6 $16) 21. Rde1 Bxb2 (21... Be6 $16) 22. Qxb2 $18 Re8 23. Re3 Bf5 24. Rfe1 {[%cal Re3e5]} e4 25. f3 {aiming for fxe4.} Qd8 (25... Be6 $16 26. Bxe6 (26. fxe4 Ng4 $16) 26... Qxe6 27. Rxe4 Nxe4 28. Rxe4 Qc6) 26. fxe4 Bxe4 27. h3 h5 (27... Bc6 $16 {was called for.}) 28. R3e2 (28. Qa1 $18) 28... h4 $2 {[%mdl 8192]} (28... Bc6 $16) 29. Rd2 Qe7 30. Rf2 Rc6 {[#]} 31. Nd5 $1 {[%mdl 512]} Nxd5 (31... Bxd5 32. Rxe7) 32. Bxd5 Bxd5 33. Rxe7 Rxe7 34. Qd4 Rd7 35. Qxh4 Re6 36. Rd2 Re8 37. Qg4 Red8 $2 {[#]} (37... Ree7 38. Kf2 Be6) 38. Qg5 {White is clearly winning.} Kg7 39. h4 f6 40. Qg3 Be4 41. Rd6 Rxd6 42. cxd6 Kf7 43. Qb3+ {Accuracy: White = 63%, Black = 16%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.9"]
[White "Tran, Tuan Minh"]
[Black "Raghunandan, Kaumandur Srihari"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2556"]
[BlackElo "2352"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,87,18,16,24,24,22,29,34,33,27,31,94,100,100,89,76,69,82,82,85,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-143,-144,-148,-136,-154,6,-75,-77,-123,-40,-72,0,-62,-62,-62,-74,-160,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. b3 g6 3. Bb2 Bg7 4. g3 c5 5. c4 d6 6. Bg2 e5 7. O-O O-O 8. Nc3 Nc6 9. d3 h6 10. Nd2 Be6 {A38: Symmetrical English vs ...g6: 4 Bg2 Bg7 5 Nf3 Nf6} 11. Nde4 Ne8 (11... Qd7 12. Nxf6+ Bxf6 13. a3 Bg7 14. Nd5 Rab8 15. b4 b6 16. Bc3 Ne7 17. Nxe7+ Qxe7 18. a4 Qd7 19. Qd2 d5 20. bxc5 bxc5 21. cxd5 Bxd5 {½-½ (36) Artemiev,V (2653)-Gelfand,B (2725) Moscow 2016}) 12. Nd5 f5 {White has an edge.} 13. Nec3 g5 14. e3 {[#]} g4 $146 (14... Qd7 $14) ({Predecessor:} 14... Qd7 15. f4 exf4 16. exf4 g4 17. Qd2 Bd4+ 18. Kh1 {½-½ (75) Neiksans,A (2590)-Brunello,S (2553) Katowice 2017}) 15. f3 $16 gxf3 16. Qxf3 Nf6 17. a3 Ne7 18. Nxf6+ Bxf6 19. Qxb7 ({White should try} 19. Qe2 $16) 19... Rb8 $11 20. Qxa7 Rxb3 21. Rab1 e4 22. Nd5 Nxd5 23. cxd5 Bxd5 24. Bxf6 Qxf6 25. Rxb3 Bxb3 26. dxe4 Bc4 27. Rd1 (27. Rf4 $11 {keeps the balance.}) 27... Be2 $1 $17 {[%cal Re2d1]} 28. Rb1 {[#]} fxe4 $1 {Strongly threatening ...Qf2+.} 29. Qb7 {[#]} Qf2+ $1 30. Kh1 Bf3 {[%csl Gf2][%cal Rf3g2]} 31. Qb3+ Rf7 (31... Kg7 $17 {[%csl Gf2][%cal Rf3g2]} 32. Qb2+ Qxb2 33. Rxb2 c4) 32. Rg1 $1 $15 Qd2 (32... Qe2 $17 {aiming for ...c4.} 33. Bxf3 exf3) 33. h3 ({Better is} 33. Qe6 $11) 33... Qd3 34. Qe6 Kg7 35. h4 (35. Kh2 $142) 35... h5 $2 {[#]} (35... Qxe3 36. Qxd6 Qd4 37. Qb6) (35... c4 $17 {Hoping for ...c3.} 36. Kh2 c3) 36. g4 $1 $11 {[%mdl 512] The position is equal.} Bxg4 37. Bh3 Kf8 38. Bxg4 hxg4 {[%mdl 4096] Endgame KQR-KQR} 39. h5 Rf1 {And now ...Rxg1+ would win.} 40. Qh6+ Kf7 41. Qg6+ Kf8 {...Rxg1+ is the strong threat.} 42. Qh6+ Kf7 43. Qh7+ Kf8 {Threatens to win with ...Rxg1+.} 44. Qh6+ {Accuracy: White = 60%, Black = 67%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.10"]
[White "Megaranto, Susanto"]
[Black "Nitin, S.."]
[Result "1-0"]
[ECO "B51"]
[WhiteElo "2526"]
[BlackElo "2408"]
[Annotator "TA"]
[PlyCount "69"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,69,0,27,29,19,0,0,0,0,0,8,0,-9,-5,0,4,4,0,0,0,4,-6,59,59,56,56,40,22,24,25,120,106,109,95,159,162,159,141,163,152,177,123,111,91,733,734,29993,29994,29994,29994,29994,29995,29995,29996,29996,29997]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O a6 5. Bxd7+ Bxd7 6. d4 cxd4 7. Qxd4 e5 8. Qd3 h6 9. c4 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7} (9. a4 Nf6 10. a5 Be7 11. c4 b5 12. axb6 Qxb6 13. Nc3 O-O 14. Be3 Qb7 15. h3 Rfc8 16. Nd2 Be6 17. Rfb1 a5 18. b3 Ra6 19. Ra2 Bd7 20. Rba1 {½-½ (20) Wang,H (2730)-Nepomniachtchi,I (2763) St Petersburg 2018}) 9... b5 10. Nc3 {[%cal Rc4b5]} bxc4 11. Qxc4 {The position is equal.} Nf6 12. b3 Be7 13. Bb2 O-O 14. Nd2 $146 ({Predecessor:} 14. Rad1 Qb6 15. Rfe1 Rfc8 16. Qd3 a5 {0-1 (57) Ozen,D (1835)-Odeev,H (2408) Edirne 2013}) 14... Be6 15. Qd3 Qc7 16. Rac1 Qb7 17. Nc4 Rfd8 18. Rfd1 d5 (18... a5 $11) 19. exd5 $14 (19. Nxe5 $6 dxe4 20. Qe2 Bd6 $11) 19... Nxd5 {aiming for ...Bg5.} 20. Qf3 $1 ({Don't play} 20. Nxe5 Bg5 $17) 20... Rab8 21. Nxe5 Bg5 22. Ra1 Bf6 (22... Nxc3 $1 $11 {keeps the balance.} 23. Qxc3 (23. Bxc3 Qc7 $11) 23... Bf6) 23. Ne4 $16 Be7 24. Nc4 Bf8 ({Black should play} 24... f6) 25. Be5 Ra8 26. Rd4 Qc6 {[#]} 27. Rad1 $1 $36 {[%mdl 2048] Nc3 is the strong threat. White has strong initiative.} Rd7 28. h3 (28. Bf4 $18 {Strongly threatening Ne5.} f6 29. Bxh6) 28... Rad8 29. R4d2 {Hoping for Bf6!} Nb4 $2 {[%mdl 8192] [#]} (29... Ne7 $16) 30. Nf6+ $1 $18 {[%mdl 512]} gxf6 31. Qxf6 {[%csl Ge5][%cal Rf6h8] White mates.} Kh7 32. Qh8+ Kg6 33. Qg8+ Kh5 34. g4+ Kh4 35. Kh2 {Accuracy: White = 73%, Black = 44%.} ({Don't blunder} 35. Bf6+ $2 Kxh3 36. Ne3 Rxd2 $19) 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.11"]
[White "Nandhidhaa, P V"]
[Black "Nasanjargal, Urtnasan"]
[Result "1-0"]
[ECO "A04"]
[WhiteElo "2240"]
[BlackElo "2503"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,133,33,36,28,38,33,14,56,7,35,29,41,38,52,17,13,11,1,-19,66,55,63,51,54,50,51,56,50,44,47,54,45,49,31,35,41,27,29,27,21,26,22,20,25,28,29,21,20,30,66,71,194,186,189,180,201,110,129,120,129,124,381,376,477,466,452,434,407,427,407,366,398,381,384,390,396,384,366,347,473,459,1004,1003,4144,4144,4144,25,25,25,25,25,25,25,25,8,8,8,25,8,4225,4160,4243,4153,4153,4153,4145,4145,4144,4144,4145,4137,4137,4137,4137,4137,4137,4137,4137,4137,4137,4137]} 1. Nf3 g6 2. e4 Bg7 3. d4 d6 4. Bc4 Nf6 5. Qe2 O-O 6. O-O c6 7. Bb3 a5 8. a4 b6 {B06: Modern Defence} 9. Rd1 Ba6 10. Qe1 d5 {The position is equal.} 11. Nbd2 e6 12. e5 $146 ({Predecessor:} 12. c3 c5 13. e5 Nfd7 14. Nf1 Nc6 15. Bg5 Qe8 16. Ne3 cxd4 17. cxd4 {½-½ (43) Kobalia,M (2590)-Minasian,A (2554) Dubai 2001}) 12... Ne8 13. Nf1 c5 14. c4 dxc4 15. dxc5 Qc8 16. Ba2 Nc7 (16... Qxc5 $11 17. Be3 Qb4) 17. Ne3 $14 Nd5 18. Nxd5 exd5 19. Rxd5 Nc6 20. Bd2 $1 Nb4 21. Bxb4 axb4 22. Qxb4 Bb7 23. Bxc4 Bxd5 24. Bxd5 Ra5 25. Rc1 Rxc5 26. Rxc5 Qxc5 27. Qxc5 bxc5 $11 {[%mdl 4096] Endgame KRB-KBN} 28. Kf1 Rd8 29. Bc4 Rd1+ 30. Ke2 Ra1 31. b3 Ra2+ 32. Ke3 Bf8 (32... Kf8 $16) 33. Ke4 Be7 34. Kd5 g5 35. e6 (35. Ne1 $18) 35... fxe6+ 36. Kxe6 Kf8 37. Ne5 $1 Rxf2 $2 {[%mdl 8192]} (37... Bd8 $16 {was necessary.}) 38. Nc6 $18 Rf6+ {[#]} 39. Kd7 $1 Rd6+ 40. Kc7 Rd2 41. a5 Bd6+ 42. Kc8 Rxg2 ({Reject} 42... Bxh2 43. a6 $18) 43. h3 h5 44. a6 Ra2 45. a7 Kg7 46. Kb7 Rxa7+ 47. Kxa7 ({Weaker is} 47. Nxa7 Kf6 $18) 47... g4 (47... Kf6 $142 48. Kb6 g4 49. hxg4 hxg4) 48. hxg4 hxg4 49. Kb6 Kf6 50. Na5 $2 (50. Kb5 $18 Kf5 51. Bd5) 50... Ke5 $1 $11 51. Nb7 g3 {And now ...g2 would win.} 52. Bf1 Be7 $1 53. Nxc5 Kd4 $1 54. Na4 {aiming for Bh3.} Ke3 55. Kc6 {Threatens to win with Nb6.} Kd2 (55... Kf2 $5 56. Bh3 $8 Kg1 $18) 56. Kd5 {Black must now prevent Kc4.} Kc2 $2 {[%mdl 8192] [#]} (56... Ke1 $11 57. Bh3 Kf2) 57. Kc4 $1 $18 {White is clearly winning.} Bf8 58. Bg2 Be7 59. Be4+ Kd2 60. Nc5 Ke3 61. Bd5 Kf2 62. Nd3+ Ke3 63. Ne1 Kf4 64. Ng2+ Ke5 65. Bf3 Bd8 66. b4 Bb6 67. Kb5 {Accuracy: White = 71%, Black = 46%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.12"]
[White "Karthik Venkataraman"]
[Black "Rahul Srivatshav P"]
[Result "1-0"]
[ECO "B12"]
[WhiteElo "2494"]
[BlackElo "2400"]
[Annotator "TA"]
[PlyCount "87"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,87,18,17,13,13,13,10,3,21,11,16,6,0,-10,-16,-15,-17,-15,-15,0,22,3,44,37,36,57,41,19,22,30,71,19,70,73,77,105,118,114,166,166,164,143,173,157,174,145,152,130,156,106,123,0,0,0,159,156,246,247,261,250,950,980,897,924,947,907,833,746,938,896,966,966,966,966,966,959,1187,1171,1127,1045]} 1. e4 c6 2. d4 d5 3. e5 c5 4. dxc5 e6 5. Nf3 Bxc5 6. a3 {B12: Caro-Kann: Advance Variation} Ne7 7. Bd3 Ng6 8. O-O {The position is equal.} O-O 9. Nbd2 Nc6 10. b4 Bb6 11. Bxg6 fxg6 12. Nb3 Rf5 $146 ({Predecessor:} 12... Bd7 13. Re1 {1-0 (29) Anand,V (2773)-Mamedyarov,S (2817) Wijk aan Zee 2019}) 13. Re1 Qc7 {[%cal Rc6e5]} 14. Bb2 Bd7 15. Rc1 a5 16. b5 Ne7 17. a4 Rf4 18. Bd4 Bxd4 19. Nbxd4 Rc8 20. c3 (20. c4 $16) 20... Rff8 (20... h6 $11) 21. Nb3 $14 {[%cal Bd4b3,Bb3d2,Bd2e4,Be4d6][%mdl 32]} b6 22. Nfd2 Qb8 23. c4 dxc4 (23... Qa7 $16) 24. Nxc4 $18 Nd5 25. Nbd2 g5 26. Ne4 h6 27. Ned6 Rc5 28. Qd2 Nf4 29. Qe3 Qc7 30. Qd4 (30. Kf1 $16) 30... Bc8 $1 $11 {[%cal Rc8b7]} 31. Qe4 $36 {[%mdl 2048] Black is under pressure.} Qb8 $2 (31... Bd7 $11) 32. Rc2 $16 Qc7 {[#]} (32... Bd7 $16 33. g3 Nd5) 33. Rec1 $1 $18 Nd5 {[#]} 34. Nxb6 $1 {[%mdl 512]} Nc3 $2 (34... Rxc2 35. Rxc2 Qxb6) (34... Qxb6 35. Rxc5) 35. Qe3 {White is clearly winning.} Qxb6 36. Rxc3 Rxc3 37. Rxc3 (37. Qxb6 $2 {is a self mate.} Rxc1#) 37... Qb8 38. Qc5 Bb7 39. Qb6 Bd5 40. Qxb8 Rxb8 41. Rc8+ Rxc8 42. Nxc8 Kf8 43. b6 {[%cal Bb5b6,Bb6b7][%mdl 32]} Ke8 {[#]} 44. b7 $1 {[%mdl 512] Accuracy: White = 74%, Black = 49%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.13"]
[White "Nguyen, Anh Khoi"]
[Black "Pham, Chuong"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2484"]
[BlackElo "2383"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 1,1,17]} 1. d4 {Predecessor:} Nf6 $146 2. c4 g6 3. g3 c6 4. Bg2 d5 5. cxd5 cxd5 6. Nf3 Bg7 7. Ne5 O-O 8. Nc3 Bf5 9. O-O Ne4 10. g4 Be6 11. Nxe4 dxe4 12. Bxe4 Nc6 13. Nxc6 bxc6 14. e3 Qd7 15. Bf3 Rab8 16. b3 c5 17. Bb2 c4 {½-½ (46) Ding,L (2813)-Mamedyarov,S (2817) Wijk aan Zee 2019} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.14"]
[White "Nguyen, Anh Dung"]
[Black "Chu, Wei Chao"]
[Result "1-0"]
[ECO "B92"]
[WhiteElo "2458"]
[BlackElo "2373"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,71,7,10,2,10,21,18,7,11,16,27,0,0,0,0,0,0,0,7,-8,0,0,32,25,56,47,63,88,166,165,362,53,106,108,110,-16,10,15,141,136,139,121,213,211,396,133,221,230,534,534,29988,29989,29989,29990]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. Bg5 Be6 9. Bxf6 Bxf6 10. Qd3 Nc6 11. O-O-O {B92: Sicilian Najdorf: 6 Be2} (11. Nd5 Bg5 12. Rd1 Rc8 13. c3 O-O 14. h3 Ne7 15. Nxe7+ Bxe7 16. Bg4 b5 17. Nd2 Qd7 18. Bxe6 fxe6 {½-½ (62) Danin,A (2543)-Jakovenko,D (2718) Minsk 2017}) 11... Nd4 12. Nxd4 exd4 13. Nd5 {The position is equal.} Bxd5 $1 14. exd5 O-O 15. Qf3 Qa5 16. Kb1 Rfe8 17. Bd3 Re5 18. h4 Qxd5 19. Qh3 $146 Rae8 20. g4 Bd8 21. g5 {[%mdl 1024] White has compensation.} Ba5 22. a3 Qc5 23. h5 Bc3 (23... Rxg5 $6 24. f4 $11) (23... Qd5 $16) 24. g6 $18 (24. bxc3 Qxa3 25. Bxh7+ (25. cxd4 $2 Qb4+ 26. Kc1 Ra5 $19) 25... Kxh7 $17) 24... Qb6 $2 (24... R5e7 {was worth a try.}) 25. b3 $2 ({White has to play} 25. gxf7+ $18 Kxf7 26. Bc4+ Kf8 27. Bb3) 25... Qc7 (25... Qa5 $14 26. Qd7 R5e7 27. Qxd6 Qc7 28. Qxc7 Rxc7) 26. Qf3 $1 $16 h6 27. Bc4 ({White should try} 27. gxf7+ $16 Qxf7 28. Qxf7+ Kxf7 29. Bg6+ {[%mdl 64] Skewer} Kg8 30. Bxe8 Rxe8 31. f4) 27... d5 28. Bxd5 {[%mdl 64] Double Attack} Kh8 (28... Rd8 $11 29. Qxf7+ (29. gxf7+ Kf8 $17) 29... Qxf7 30. Bxf7+ (30. gxf7+ Kf8 $11) 30... Kf8) 29. gxf7 Rf8 30. Rhg1 {Hoping for Qg3.} Qe7 (30... Qd7 $16 31. Bc4 (31. Bxb7 $2 Qe7 $19) 31... b5) 31. Rg6 $1 $18 Re1 $2 {[#]} ({And not} 31... Qxa3 32. Rxh6+ $1 {[%mdl 512]} gxh6 33. Qf6+ Kh7 34. Qg6+ Kh8 35. Qxh6#) (31... d3 {was necessary.} 32. Rdg1 (32. cxd3 $2 Rf5 $19) (32. Bxb7 $2 Re1 $19) 32... Re1+ 33. Ka2 Rxg1 34. Rxg1 Bf6 35. Qxd3 (35. cxd3 Qc5 $17) 35... Qe5) 32. b4 $2 $40 {[%mdl 128] White attacks with force.} (32. Ka2 $1 $18 Rxd1 33. Qxd1) 32... Qe5 (32... a5 $16 {was called for.}) 33. Rg1 {And now Rdxe1 would win.} ({Don't blunder} 33. Bxb7 $2 {[#]} Rxf7 $3 {[%mdl 512]} 34. Qd3 (34. Qxf7 {gets mated.} Rxd1+ 35. Ka2 Ra1+ 36. Kb3 Rb1+ 37. Ka2 Rb2+ {[%mdl 64] Double Attack} 38. Ka1 Qe1#) 34... Rxb7 $19) 33... Re2 $2 {[#]} (33... Rxd1+ {is a better chance.} 34. Rxd1 b6) 34. Rxg7 $1 {[%mdl 576] Clearance} Kxg7 (34... Qxg7 35. Qxe2) 35. Rg1+ Kh7 36. Qd3+ {Accuracy: White = 51%, Black = 21%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.15"]
[White "Mendonca, Leon Luke"]
[Black "Wang, Shixu B"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2446"]
[BlackElo "2362"]
[Annotator "TA"]
[PlyCount "83"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,83,-33,-39,-1,4,38,22,43,52,104,104,107,24,24,24,56,29,33,12,0,1,77,38,38,38,40,31,31,27,30,14,14,13,12,2,26,32,50,49,65,2,8,2,11,7,19,18,20,8,858,0,556,0,508,0,571,529,557,0,839,0,783,0,725,19]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Nf3 Nc6 5. Bg2 dxc4 6. O-O Rb8 7. Bg5 {E04: Open Catalan: 5 Nf3} (7. e3 Be7 8. Qe2 b5 9. b3 cxb3 10. axb3 O-O 11. Bd2 Bb7 12. Rc1 a6 13. Ne1 Nd5 14. Nd3 Qd7 15. Nc3 {1-0 (24) So,W (2780)-Wei,Y (2729) chess.com INT 2018}) 7... Be7 8. e3 O-O 9. Nfd2 e5 10. Bxf6 Bxf6 11. d5 {LiveBook: 4 Games} Nb4 (11... e4 $5 {[%cal Rf6b2]} 12. Qc1 Ne5 13. Nxe4 b5 $15) 12. Nxc4 $146 ({Predecessor:} 12. Nc3 b5 13. a4 a6 14. axb5 axb5 {1-0 (48) Dubov,D (2661)-Hausrath,D (2503) Berlin 2015}) 12... c6 (12... e4 $5) 13. dxc6 bxc6 {Hoping for ...Qxd1.} 14. Nbd2 Be6 (14... Qc7 $14) 15. a3 $1 $16 {[%cal Ra3b4,Ba2a3,Ba3a4][%mdl 32]} Nd5 {[#]} 16. Qc2 (16. Rc1 $1 $16) 16... Qc7 $11 17. Rac1 a5 18. Nb3 Rb5 $1 19. a4 Nb4 20. Qe2 Bxc4 (20... Rbb8 $11) 21. Qxc4 Rbb8 22. Nc5 Be7 23. Nd3 (23. Bf3 {seems wilder.} Rfd8 24. Rfd1 Rxd1+ 25. Rxd1 Rd8 26. Rxd8+ Qxd8 27. Na6) 23... Rfd8 24. Nxb4 Rxb4 25. Qxc6 Qxc6 26. Bxc6 Rxb2 27. Bb5 Rbd2 28. Rc7 Bb4 29. Rfc1 g6 30. Rc8 (30. R1c6 $14) 30... Rd1+ 31. Kg2 Rxc1 32. Rxc1 {[%mdl 4096] Endgame KRB-KRB} Rd6 33. Rc7 Re6 34. Bd7 Kg7 $2 {[%mdl 8192]} (34... Re7 $11) 35. g4 $2 (35. Bxe6 $18 Kf6 36. Bxf7) 35... Bd6 $2 {[%mdl 8192]} (35... Re7 $11 {and Black has nothing to worry.}) 36. Rb7 $2 ({White must play} 36. Rc6 $18) 36... Kf6 $2 {[%mdl 8192] [#]} (36... Re7 $11) 37. h3 $2 (37. g5+ $1 $18 {[%mdl 512]} Kxg5 38. Bxe6 fxe6 39. Rxh7) 37... h5 $2 {[%mdl 8192]} (37... Re7 $11 {and Black is okay.}) 38. gxh5 gxh5 {intending ...Re7.} 39. h4 $2 (39. Bxe6 $18 Kxe6 40. Rb6) 39... Kg6 $2 {[%mdl 8192]} (39... Re7 $11) 40. Kf1 $2 (40. Bxe6 $18 fxe6 41. Rb5) 40... f5 $2 {[%mdl 8192]} (40... Re7 $11) 41. Kg2 $2 (41. Bxe6 $18 Kf6 42. Bf7) 41... Kf6 $2 {[%mdl 8192]} (41... Re7 $11) 42. Bc6 $2 {Precision: White = 27%, Black = 27%.} ({White should try} 42. Rb6 $18 Kf7 43. Bxe6+ Kxe6 44. Ra6) 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.16"]
[White "Nguyen, Van Huy"]
[Black "Pranesh, M."]
[Result "1-0"]
[ECO "E06"]
[WhiteElo "2428"]
[BlackElo "2309"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,136,8,9,9,8,0,18,28,89,7,97,78,104,98,97,90,108,101,102,104,82,93,109,106,95,109,105,107,104,111,155,150,152,101,107,114,114,89,93,96,90,93,107,85,75,85,80,77,107,106,168,131,170,181,254,0,137,0,266,215,246,253,259,93,95,31,369,343,314,306,377,273,456,446,723,581,665,625,805,798,29983,29984,29984,29985,29985,29986,29986,29987,29989,29990,29990,29991,29998,29992,29992,29985,29985,29986,29986,29987,29987,29987,29988,29989,29988,29987,29990,29991,29991,29992,29993,29994,29994,29995,29995,29995,29995,29996,29996,29997,29997,29998,29998,29999,29999]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. O-O dxc4 7. Qc2 b5 8. a4 {E05: Open Catalan: 5 Nf3 Be7} b4 9. Nfd2 Nd5 (9... c6 10. Nxc4 Qxd4 11. Rd1 Qc5 12. b3 Ba6 13. Nbd2 Nbd7 14. Bb2 Rad8 15. e3 Qh5 {0-1 (38) Maghsoodloo,P (2688)-Nakamura,H (2746) St Petersburg 2018}) 10. Nxc4 {The position is equal.} Nc6 (10... c5 $11 {remains equal.}) 11. Rd1 (11. e3 $1 $16) 11... Rb8 $146 (11... b3 $1 $11 {keeps the balance.} 12. Qxb3 Rb8) ({Predecessor:} 11... Ba6 12. b3 Rb8 13. Bb2 Qd7 14. e4 Bxc4 15. bxc4 b3 {½-½ (58) Sipos,I (2463)-Hess,R (2639) Pardubice 2012}) 12. b3 $1 $16 Bb7 13. e4 Nb6 14. d5 exd5 15. exd5 {[%mdl 64] Trapped Piece} Nd4 16. Rxd4 {Strongly threatening Rd1.} Bf6 17. Bb2 {Hoping for Rd3.} Bxd4 18. Bxd4 {Black must now prevent a5.} Bxd5 19. Bxb6 axb6 20. Nbd2 Bxg2 21. Kxg2 Qd5+ {[#]} 22. Nf3 $1 Rbd8 23. Rc1 (23. Ne3 $142 Qb7 24. a5) 23... Rfe8 24. Ne3 Qa8 25. Rd1 Rxd1 26. Qxd1 Rd8 27. Qc2 c5 28. Nc4 Qb7 29. h4 {[%cal Bh2h4,Bh4h5][%mdl 32]} h6 30. Qe2 Qc6 31. Qe7 Rb8 (31... Re8 $16 32. Qa7 Re6) 32. h5 f6 33. Nd6 Rf8 (33... Kh8 $142 34. g4 Kg8) 34. Nc4 ({White should try} 34. Nf5 $18 {[%csl Gf5][%cal Re7g7]} Rf7 35. Qd8+ Kh7 36. Ne7 Rxe7 37. Qxe7) 34... Rb8 $1 35. Nd6 (35. Ne3 $16) 35... Qd5 $2 {[%mdl 8192] [#]} (35... Rf8 $1 $11 {and Black stays safe.}) 36. Qc7 $1 $40 {[%cal Rc7b8][%mdl 128] White attacks with force.} Rf8 37. Nc4 Qxh5 38. Qxb6 $2 (38. Nxb6 $18 {is the precise move to win. a5 is the strong threat.} Qf7 39. Qxc5) 38... Qd5 $16 39. Qd6 (39. a5 $16) 39... Qe4 $2 {[%mdl 8192]} (39... Qxd6 $14 40. Nxd6 Rd8) 40. Qxc5 Rd8 41. Qe3 Qd5 42. Qd2 Qa8 $2 (42... Qxd2 {was called for.} 43. Nfxd2 (43. Ncxd2 Kf7 $16) 43... Kf7) 43. Qxb4 $18 g5 (43... Rd3 $142 44. Ne3 Qc6) 44. Ne3 h5 {Black hopes to continue with ...g4.} 45. g4 hxg4 46. Nxg4 {And now Qe7 would win.} Qc6 47. Qe7 {White mates.} Rd6 48. Nh6+ Kh8 49. Nf7+ {[%mdl 64] Double Attack} Kg8 50. Nxd6 g4 51. Qf7+ Kh8 52. Qh5+ {[%mdl 64] Double Attack} Kg8 53. Qxg4+ Kf8 54. Qc8+ Qxc8 55. Nxc8 Ke8 56. a5 Kd7 57. Nb6+ Kc6 58. b4 Kb5 59. Nd5 Kc4 60. a6 Kxd5 {[%mdl 4096] Endgame KN-KP} 61. a7 f5 62. a8=Q+ Kc4 63. Qc6+ Kxb4 64. Kf1 f4 65. Ke2 Ka5 66. Qb7 Ka4 67. Kd3 Ka3 68. Kc3 {[%csl Gc3][%cal Rb7b3]} Ka2 69. Qb2# {Accuracy: White = 53%, Black = 35%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.17"]
[White "Pham, Le Thao Nguyen"]
[Black "Laxman, R.R."]
[Result "1/2-1/2"]
[ECO "A47"]
[WhiteElo "2374"]
[BlackElo "2425"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,34,0,0,1,42,28,39,28,29,20,32,22,27,16,44,43,55,54,54,56,62,55,70]} 1. d4 Nf6 2. Nf3 b6 3. Bf4 Bb7 4. e3 g6 5. h3 Bg7 6. Be2 O-O 7. O-O c5 8. c3 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} Ba6 (8... d6 9. Bh2 Nbd7 10. a4 a6 11. Nbd2 Qc7 12. Bd3 cxd4 13. cxd4 Nd5 14. Qb3 Bh6 15. Rac1 Qb8 16. Bc4 N7f6 17. Ne4 b5 18. axb5 axb5 19. Nxf6+ Nxf6 {½-½ (33) Nisipeanu,L (2657)-Illescas Cordoba,M (2605) Barcelona 2018}) 9. Nbd2 {[%cal Bb1d2,Bd2f3,Bf3e5][%mdl 32]} Bxe2 10. Qxe2 d5 $146 ({Predecessor:} 10... d6 11. Bh2 Qc8 12. e4 Nfd7 13. e5 dxe5 14. dxe5 e6 {1-0 (29) Abrantes,T (2190)-De Andrade,I (1857) Brasilia 2015}) 11. Ne5 Nfd7 12. Ndf3 Nxe5 13. Bxe5 cxd4 14. cxd4 {White is slightly better.} Bxe5 15. Nxe5 f6 16. Nd3 Nc6 17. Rac1 Qd6 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.18"]
[White "Bulmaga, Irina"]
[Black "Miciano, John Marvin"]
[Result "0-1"]
[ECO "B13"]
[WhiteElo "2424"]
[BlackElo "2317"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,122,20,18,9,18,19,34,31,28,22,31,21,43,35,33,27,18,4,19,23,31,6,39,13,31,31,35,15,50,39,70,50,64,48,71,64,57,56,58,0,0,0,0,0,0,0,0,-182,-168,-334,-129,-132,-132,-168,-110,-101,-100,-108,-109,-131,-105,-197,-213,-300,-297,-314,-314,-277,-254,-336,-342,-346,-285,-414,-296,-468,-242,-297,0,-445,-278,-373,-323,-383,-314,-328,-156,-460,-445,-401,0,-385,-315,-434,-363,-316,-314,-319,-314,-312,-297,-748,-382,-29978,-29979,-29975,-29976,-29992,-29993,-29993,-29991,-29991,-29992,-29992,-29993]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. Na3 {[%cal Bb1a3,Ba3c2,Bc2e3][%mdl 32] B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack} a6 7. Nc2 e6 (7... Nf6 8. h3 e6 9. Nf3 Bd6 10. O-O b5 11. Re1 Bb7 12. a4 bxa4 13. Rxa4 O-O {1-0 (30) Artemiev,V (2709)-Dreev,A (2670) St Petersburg 2018}) 8. Nf3 {White is slightly better.} Bd6 9. O-O Nge7 10. Re1 Bd7 $146 ({Predecessor:} 10... h6 11. Ne3 Bd7 12. a4 f6 13. h3 O-O {1-0 (50) Cornette,M (2492)-Le Roux,J (2607) Orsay 2018}) 11. Bd2 f6 12. Ne3 O-O 13. c4 dxc4 14. Bxc4 Kh8 15. Rc1 Rae8 16. h3 Qb6 17. Bb3 Bb8 18. Bc3 Qb5 19. Nc4 a5 20. Na3 Qf5 21. Bd2 Nd5 22. Nh4 Qd3 23. Bc2 $1 {[%cal Rc2d3]} Qxd4 {[%mdl 64] [#] Double Attack} 24. Re4 (24. Ng6+ $1 $14 {[%mdl 512]} Kg8 (24... hxg6 25. Bxg6) 25. Nxf8 Rxf8 26. Bc3 $1 {[%mdl 512]}) 24... Qb6 $1 $11 {[#] Hoping for ...f5.} 25. Ng6+ $1 {[%mdl 512]} Kg8 $1 (25... hxg6 $2 26. Rh4+ Kg8 27. Bxg6 $18) 26. Rh4 f5 (26... hxg6 $2 27. Bxg6 Nf4 28. Bxf4 $18) (26... Qxb2 $2 {[#]} 27. Rxh7 $1 {[%mdl 512]} Qxc2 28. Qxc2 $18) 27. Nxf8 Rxf8 28. Bb3 $2 (28. Qh5 $11 {and White stays safe.} Bg3 29. Qxh7+ Kf7 30. Qh5+ Kg8 31. Qh8+ (31. Qh7+ Kf7 $11) 31... Kf7 32. Qh5+ Kg8 33. Qh8+ (33. Qh7+ Kf7 $11) 33... Kf7 34. Qh5+) 28... Bg3 $1 $36 {[%mdl 2048] Black has strong initiative.} 29. Bxd5 $2 (29. Rhc4 {was worth a try.} Qxf2+ 30. Kh1) 29... Bxf2+ $2 ({Weaker is} 29... Bxh4 30. Be3 $11) (29... Qxf2+ $19 30. Kh1 Bxh4) 30. Kh1 $17 Bxh4 31. Nc4 Qd8 (31... Qa6 $19 32. Bf3 Rd8) 32. Bf3 Bg5 33. Bxg5 Qxg5 34. Rc2 Be8 35. Re2 (35. Nd6 $17 {is a better defense.}) 35... Qf4 $19 36. Bxc6 (36. b3 $142) 36... Bxc6 ({Less strong is} 36... bxc6 37. Qc2 $17) 37. Nxa5 Bd5 38. Nb3 Rc8 {aiming for ...Bxb3.} 39. Rc2 Rxc2 40. Qxc2 h6 41. Nc5 (41. Qe2 $142) 41... Kh7 42. a4 (42. Kg1 {was called for.}) 42... Qf1+ 43. Kh2 Qf4+ (43... Qe1 $142 44. Nd7 Bc6 45. Nf8+ Kg8) 44. Kh1 Qg3 45. Kg1 Qe1+ 46. Kh2 h5 47. Nd7 h4 (47... Bc6 $19 {and Black stays clearly on top.} 48. Nf8+ Kg8) 48. a5 $2 (48. Qc7 $17) 48... Qg3+ 49. Kg1 Qe1+ 50. Kh2 {and the idea Qc7 leaves White hopeful.} Bc6 51. Nc5 Qxa5 52. Qf2 Qd8 53. Qf4 Qf6 54. Nd3 Qh6 55. Qe5 $2 (55. Qf2) 55... Qg5 {[%csl Gc6][%cal Rg5g2]} 56. Nf4 $2 (56. Ne1 $19 Bd5 57. Nf3) 56... Qg3+ {Black mates.} 57. Kg1 {[#]} Bxg2 $1 {[%mdl 512]} 58. b4 (58. Nxg2 Qxe5) 58... Bxh3+ 59. Kh1 {[#]} Bg2+ $1 {[%mdl 64] Pin} 60. Kg1 (60. Nxg2 Qxe5) 60... Bd5+ 61. Kf1 Bc4+ {Accuracy: White = 43%, Black = 53%.} 0-1

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.19"]
[White "Le, Quang Long"]
[Black "Xu, Minghui"]
[Result "0-1"]
[ECO "A30"]
[WhiteElo "2412"]
[BlackElo "2293"]
[Annotator "TA"]
[PlyCount "133"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,133,13,10,2,0,-17,-13,-41,-8,-70,0,0,24,20,20,-5,-5,-32,4,-32,-30,-15,-28,-175,-159,-229,-229,-214,-225,-225,-225,-225,-214,-243,-217,-265,-287,-381,-349,-361,-332,-336,-331,-483,-339,-555,-555,-555,-528,-535,-534,-506,-114,-102,-95,-164,-160,-151,-103,-163,-163,-164,-164,-163,-138,-147,-123,-146,-85,-85,-93,-144,-149,-186,-186,-196,-195,-240,-239,-239,-196,-239,-239,-272,-247,-264,-192,-175,-160,-247,-247,-247,-247,-247,-247,-247,-247,-262,-247,-247,-247,-247,-247,-247,-247,-441,-402,-441,-441,-440,-402,-440,-418,-504,-497,-504,-503,-504,-477,-29994,-29995,-29997,-29998,-29998]} 1. c4 c5 2. Nf3 Nc6 3. Nc3 g6 4. e3 Nf6 5. d4 cxd4 6. Nxd4 Bg7 7. Nc2 {A35: Symmetrical English: 2 Nc3 Nc6 3 Nf3} (7. g3 Nxd4 8. Qxd4 O-O 9. Bg2 d6 10. O-O Be6 11. Qd3 Rc8 12. Nd5 Nxd5 13. cxd5 Bd7 14. e4 Qa5 {0-1 (50) Ortiz Suarez,I (2527)-Sebenik,M (2570) Batumi 2018}) 7... d6 8. e4 Nd7 $146 ({Predecessor:} 8... O-O 9. Be2 Nd7 10. h4 h5 11. g4 hxg4 12. Bxg4 Nce5 13. Be2 Nb6 14. Ne3 Be6 {½-½ (59) Londyn,R (2344)-Kyas,J (2205) Germany 2013}) 9. Bd2 {The position is equal.} O-O 10. h4 (10. Be2 $11) 10... h5 (10... Nc5 $15 11. f3 Be6) 11. Be2 $11 Nf6 12. f3 Be6 13. Be3 Rc8 14. Qd2 a6 15. Rc1 Ne5 16. b3 {[#]} b5 $1 {[%mdl 512]} 17. cxb5 {[#]} (17. Nd4 $11 {and White has nothing to worry.}) 17... Rxc3 $1 $19 {[%mdl 512]} 18. Qxc3 (18. Bd4 $17 Rc8 19. bxa6) 18... Nxe4 $1 19. Qb4 Nd3+ (19... Nxf3+ 20. Kf1 $17) 20. Bxd3 Bc3+ 21. Qxc3 Nxc3 22. bxa6 Qa5 (22... Nxa2 23. Ra1) 23. O-O Bf5 $1 {[%cal Rf5d3]} (23... Nxa2 24. b4 $15) (23... Qxa2 24. Nd4 $11) 24. b4 Qa4 25. Bxf5 {Threatens to win with Bd3.} Ne2+ (25... gxf5 26. Nd4 $15) 26. Kh2 {Hoping for Bd3.} Nxc1 ({Not} 26... gxf5 27. Rce1 $19) 27. Be4 (27. Rxc1 $142 gxf5 28. a7) 27... d5 28. Bxd5 $2 (28. a7 dxe4 29. Rxc1) 28... Qxc2 29. Rxc1 Qd3 30. Bh6 Qxd5 31. Bxf8 {[%mdl 4096] Endgame KQ-KRB} Qd7 $2 (31... Kxf8 $19 {is more deadly.} 32. Kh1 (32. Rc8+ $2 Kg7 $19) 32... Qxa2) 32. Bh6 $17 Qd6+ {[%mdl 64] Double Attack} 33. Kh3 (33. Kh1 $17 {was necessary.} Qxa6 34. Be3) 33... Qxa6 $19 34. Re1 e6 35. Bf4 (35. Re5 $17) 35... Qxa2 36. Be5 Qd5 37. Kg3 Qb5 38. Bc3 Qc4 39. Re3 Kf8 (39... f5 $142 40. Be5 Qxb4) 40. Bf6 $17 {With the idea Rc3.} Ke8 $1 41. Re4 {[#]} (41. Rc3 $142 Qb5 42. Ra3) 41... Qc7+ $1 42. f4 {[#] intending Rd4.} Kd7 $1 43. Rd4+ Kc8 44. Be5 Qc2 45. Kh2 Qf5 46. Rc4+ Kb7 47. Rc7+ Kb6 48. Rd7 f6 49. Rf7 Qg4 ({But not} 49... fxe5 $2 50. Rxf5 exf5 51. fxe5 $18) 50. Bxf6 (50. Rxf6 $17 {keeps fighting.} Qxh4+ 51. Kg1) 50... Qxf4+ $19 {[%mdl 64] Double Attack} 51. Kh1 Kc6 52. Rf8 Qxb4 53. Rc8+ Kd5 54. Rc1 Ke4 55. Rf1 Kd3 56. Bg5 e5 57. Rf3+ Kd4 58. Rf6 $2 (58. Kg1) 58... e4 59. Re6 Kd3 60. Kh2 Qb5 61. Re7 Qf5 62. Ra7 Qe5+ 63. Kh1 Ke2 64. Ra2+ Kf1 {( -> ...Qd4)} 65. Ra3 (65. Ra7 $19) 65... Qb2 {[%csl Gf1][%cal Rb2g2]} 66. Rg3 Qf2 {[%csl Gf1][%cal Rf2g1]} 67. Kh2 {Accuracy: White = 34%, Black = 73%.} 0-1

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.20"]
[White "Cheparinov, Ivan"]
[Black "Nguyen, Dang Hong Phuc"]
[Result "1-0"]
[ECO "C10"]
[WhiteElo "2683"]
[BlackElo "2376"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,95,36,41,17,50,48,82,18,21,21,40,9,12,0,0,0,0,9,4,6,14,14,14,0,0,0,0,0,4,7,42,6,3,3,0,0,38,32,33,20,72,41,128,45,41,27,191,187,188,190,207,200,164,159,141,162,156,120,179,93,92,78,102,93,96,89,154,102,120,0,166,166,142,153,143,136,189,176,504,483,29987,29988,29998,29999]} 1. e4 e6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. c3 c5 {LiveBook: 363 Games} 8. Bf4 {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4} (8. Ne5 a6 9. Be3 cxd4 10. Bxd4 Qc7 11. Bd3 Bc5 12. Qa4+ Nd7 13. Bxc5 Qxc5 14. Nf3 b5 15. Qh4 Bb7 16. O-O-O {½-½ (34) Vachier Lagrave,M (2780)-Meier,G (2623) chess.com INT 2019}) 8... a6 9. Be2 Bd6 $146 ({Predecessor:} 9... cxd4 10. Qxd4 Qxd4 11. Nxd4 Bd7 12. Bf3 O-O-O 13. O-O-O Bc5 14. Bg3 Bb6 {½-½ (65) Eliseev,A (2421)-Maslak,K (2548) Peterhof 2007}) 10. Ne5 ({White should play} 10. dxc5 $1 $16 Bxf4 11. Qa4+ Bd7 12. Qxf4) 10... Qc7 $11 11. O-O Nd7 {[%cal Rd7e5]} 12. Bf3 Nxe5 13. dxe5 Bxe5 14. Qa4+ Bd7 15. Bxe5 Qxe5 16. Qa5 Bc6 17. Bxc6+ bxc6 18. Rfe1 Qf5 19. Rad1 O-O 20. c4 Qg5 21. g3 Rfd8 22. b3 (22. h4 $5 {[%cal Rh4g5]} Qe7 23. Rxd8+ Qxd8 24. Qxc5 $11) 22... h6 23. h4 Qe7 24. Qb6 Rdb8 25. Qxc6 Rc8 26. Qa4 Ra7 (26... Rd8 $11) 27. Rd3 g5 ({Black should try} 27... a5 $14) 28. h5 (28. hxg5 $16 hxg5 29. Rd5) 28... a5 $14 29. Red1 Rcc7 $2 (29... Raa8 $11 {and Black is okay.}) 30. Rd8+ $18 Kg7 31. Qb5 Rcb7 32. Qc6 Rc7 33. Qe4 Qf6 34. a4 $1 Rab7 35. R8d3 Rb8 {[#]} (35... Qf5 $16 36. Qxf5 exf5) 36. Qe2 (36. Rf3 $1 $18 {[%cal Rf3f6]} Qe7 37. Qe5+ Kh7 38. Rf6) 36... Kg8 $16 37. Rf3 Qg7 38. Kg2 Rcb7 39. Qe1 Ra8 (39... Ra7 $142) 40. Qe4 ({Better is} 40. Rd6) 40... Rab8 41. Qe1 Ra8 $1 42. Rdd3 Qb2 43. Rd2 $36 {[%mdl 2048] White is in control.} Qg7 44. Qe3 Rc8 {[#]} (44... Rc7 $16) 45. Rd6 $1 $18 {[%cal Bd2d6,Bd6e6,Be6e8][%mdl 32]} Qb2 $2 {[#]} (45... Re7 {is tougher.} 46. Qe2 Qf8) 46. Rxe6 $1 {[%mdl 512]} Rxb3 (46... Qd4 $18 47. Rxh6 Qxe3 48. Rxe3 Ra7) (46... fxe6 47. Qxe6+) 47. Re8+ ({Less strong is} 47. Qxb3 Qxb3 48. Rxb3 fxe6 $18) 47... Kg7 {[#]} 48. Rxf7+ $1 {[%mdl 512] Precision: White = 58%, Black = 41%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.21"]
[White "Chen, Qi B"]
[Black "Tran, Quoc Dung"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2443"]
[BlackElo "2376"]
[Annotator "TA"]
[PlyCount "175"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,175,35,16,7,35,22,59,74,64,69,70,64,82,73,123,119,127,124,139,173,170,151,155,150,185,182,171,184,195,142,150,154,166,165,160,160,148,125,147,152,162,140,173,108,148,157,202,181,189,163,216,146,153,150,229,150,326,298,489,480,639,616,520,459,460,237,208,163,163,113,110,103,108,95,156,149,163,163,145,122,123,130,218,218,191,197,377,370,369,369,367,304,420,386,387,386,385,383,386,386,379,322,384,233,367,350,359,269,341,338,322,284,340,313,405,405,405,405,405,405,405,405,405,405,358,265,531,405,405,405,369,263,447,441,469,462,504,551,522,514,947,885,916,820,955,933,1219,1206,939,848,772,579,1344,862,791,787,2793,2056,29981,29982,29982,29983,29991,29992]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nde2 b5 8. Ng3 {B90: Sicilian Najdorf: Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5} g6 $146 ({Predecessor:} 8... Nbd7 9. Bg5 h6 10. Be3 Bb7 11. Bd3 h5 12. Bg5 g6 13. O-O Be7 14. a3 h4 15. Nge2 Nc5 16. Bxf6 Bxf6 {1-0 (48) Dominguez Perez,L (2739)-Vachier Lagrave,M (2779) chess.com INT 2018}) 9. Bg5 Be6 10. a4 {White is slightly better.} b4 11. Nd5 Nbd7 12. Nxb4 Qb6 {[#]} 13. c3 $1 h6 14. Bxf6 Nxf6 15. Bd3 Nd7 16. a5 Qb7 17. Qe2 {[%cal Rd3a6]} Nc5 18. Bc4 h5 19. Bd5 Bxd5 20. Nxd5 (20. exd5 $6 f5 $16) 20... h4 21. b4 ({White should try} 21. Nf1 $18) 21... Ne6 $16 22. Nf1 Nf4 23. Nxf4 exf4 24. Nd2 Bg7 25. Ra3 Rc8 26. Qd3 O-O 27. O-O Rfd8 {[#]} 28. Nf3 ({White should play} 28. Re1 $1 $18) 28... d5 29. e5 Rc4 30. Rd1 {Threatens to win with Qxc4!} Qc7 31. e6 (31. Nxh4 Bxe5 32. Nxg6 fxg6 $11) 31... fxe6 (31... Bf6 $142 32. Re1 Kg7) 32. Qxg6 Qf7 33. Qg4 {Hoping for Ne5.} (33. Nxh4 Qxg6 34. Nxg6 Kf7 $15) 33... Qf6 (33... Qf5 $16 {is a better defense.}) 34. Rd4 (34. Nxh4 f3) 34... Rdc8 $2 (34... Qf5 $16 {was necessary.}) 35. Rxc4 Rxc4 $2 (35... dxc4 {was worth a try.} 36. Nd4 Kf7) 36. b5 $18 axb5 37. a6 {[%cal Ba5a6,Ba6a7][%mdl 32] Black must now prevent a7.} Rc8 38. a7 Ra8 39. Ra6 (39. Nd4 $142) 39... Qf5 40. Qxf5 ({Weaker is} 40. Nxh4 Qxg4 41. hxg4 Bxc3 $11) 40... exf5 {[%mdl 4096] Endgame KRB-KRN} 41. Ra5 ({Don't take} 41. Nxh4 $6 d4 $14) 41... Bxc3 42. Rxb5 Rxa7 43. Rxd5 Ra1+ ({Better is} 43... Bf6) 44. Kh2 $16 Ra2 45. Rxf5 Rxf2 46. Kg1 Ra2 47. Rxf4 Ra1+ (47... Ba5 $16) 48. Kh2 $18 Ba5 {Strongly threatening ...Bc7.} 49. Rc4 ({Inferior is} 49. Nxh4 Bc7 $11) 49... Ra3 $2 (49... Rb1 50. Nxh4 Rb7) 50. Nxh4 Bb6 51. Nf3 Kg7 52. h4 Ra5 53. Kh3 Ra3 54. Rg4+ Kh6 55. Rf4 Bc7 56. Rf6+ Kg7 57. Rc6 Bb8 58. Rb6 Ba7 (58... Bc7 $142 59. Re6 Bf4) 59. Rb5 Be3 60. Kg4 Ra4+ 61. Kh5 Ra6 62. Ne5 Rh6+ 63. Kg4 Ra6 64. Kf5 Rf6+ 65. Ke4 Bd2 66. Rb7+ Kg8 67. g3 Be1 68. Rb3 Kg7 69. Re3 Bd2 $2 (69... Rf1 {might work better.} 70. Rb3 Rf8) 70. Rf3 Ra6 71. Rf7+ Kg8 72. Rf1 Ra4+ $2 (72... Kg7 73. Rf7+ Kg8) 73. Kf5 Bc3 74. Rf3 Ba1 75. Re3 Kg7 76. g4 Ra2 (76... Bb2 $142 77. Nc6 Bc1 78. Re7+ Kf8) 77. g5 Bd4 78. Re4 Bc3 79. Nf3 Ra5+ 80. Kg4 Ra2 81. Re7+ Kg8 82. Rc7 Bb4 83. Rc4 Bd6 84. h5 Ra5 85. Rc8+ Kg7 86. h6+ {White mates.} Kh7 87. Rd8 Ra4+ 88. Kh5 {Accuracy: White = 77%, Black = 37%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.22"]
[White "Li, Yankai"]
[Black "Divya Deshmukh"]
[Result "1-0"]
[ECO "B94"]
[WhiteElo "2434"]
[BlackElo "2266"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 13,51,10,33,22,64,29,108,106,145,147,146,153,149,152,156,151,154,105,145,136,138,122,462,462,475,483,478,472,943,925,894,686,691,690,683,689,675,45,674,667]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 e6 8. Qe2 {B94: Sicilian Najdorf: 6 Bg5 Nbd7} (8. O-O Qa5 9. f4 Qc5 10. Bb3 e5 11. fxe5 dxe5 12. Qh5 g6 13. Qh4 Be7 14. Bxf6 Nxf6 15. Rxf6 O-O {1-0 (34) Grandelius,N (2653)-Olszewski,M (2551) Germany 2018}) 8... Qc7 9. f4 e5 (9... h6 $11 {keeps the balance.} 10. Bxf6 Nxf6) 10. Nf5 $16 {White is better.} Nb6 {[#]} 11. Bb3 $1 Bxf5 12. exf5 Be7 13. fxe5 $146 ({Predecessor:} 13. O-O-O O-O 14. Rhe1 Rae8 15. fxe5 dxe5 16. Qxe5 {½-½ (42) Holinka,H (2107)-Foerster,A (2206) Hamburg 2017}) 13... dxe5 14. O-O-O O-O 15. Rhe1 Rfe8 16. Bxf6 Bxf6 17. Ne4 Qe7 $2 {[%mdl 8192]} (17... Rad8 $16 {is tougher.}) 18. Rd6 $18 Nc8 19. Nxf6+ gxf6 20. Rd3 Nd6 (20... Kh8 $142 21. Qh5 Rg8) 21. Qh5 {Rg3+ would kill now.} ({Weaker is} 21. Qg4+ Kh8 $16) 21... Qf8 22. Red1 ({Not} 22. Rxd6 Qxd6 23. Bxf7+ Kf8 $18) 22... Red8 23. Rh3 {[%csl Gh3][%cal Rh5h7]} h6 24. Qg6+ {[%mdl 64] [#] Double Attack} Qg7 25. Qxg7+ Kxg7 26. Rhd3 {Accuracy: White = 74%, Black = 32%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.23"]
[White "Laylo, Darwin"]
[Black "Fenil, Shah"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2430"]
[BlackElo "2360"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,92,18,13,42,25,29,34,41,41,41,39,33,22,65,22,22,31,36,18,27,29,43,0,0,0,0,0,0,0,0,0,5,5,5,5,5,5,6,5,5,5,5,5,8,8,8,8,8,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e6 2. Nf3 d5 3. d4 c6 4. e3 Bd6 5. Bd3 f5 6. b3 Nf6 7. O-O Qe7 8. Bb2 O-O 9. Qc1 b6 {A84: Dutch Defence: 2 c4 Miscellaneous} 10. Ba3 c5 11. Nc3 {LiveBook: 6 Games} (11. dxc5 bxc5 12. cxd5 Nxd5 13. Nc3 Nd7 14. Nb5 Bb8 15. Be2 Bb7 16. Rd1 a6 17. Nc3 Bd6 18. Bb2 Rad8 19. Nxd5 {0-1 (19) Yakubboev,N (2556)-Tomashevsky,E (2705) St Petersburg 2018}) 11... Nbd7 {[%cal Bb8d7,Bd7f6,Bf6e4][%mdl 32]} 12. cxd5 Nxd5 13. Nxd5 exd5 14. Qc2 g6 15. Bb5 {Black must now prevent Bc6.} Nf6 16. Rac1 $146 {[%cal Rd4c5]} ({Predecessor:} 16. dxc5 bxc5 {½-½ (31) Gagarin,V (2417)-Goriatchkin,J (2311) Moscow 2012}) 16... Ne4 17. Bc6 Bb7 18. Bxb7 Qxb7 19. dxc5 bxc5 20. Nd2 Rac8 21. Nxe4 fxe4 {The position is equal.} 22. Qc3 Rf5 23. f4 exf3 24. Rxf3 Rxf3 25. gxf3 Bf8 26. Bb2 {[#] Threatens to win with Qh8+.} Bg7 27. Qxg7+ Qxg7 28. Bxg7 Kxg7 $11 {[%mdl 4096] Endgame KR-KR} 29. e4 dxe4 30. fxe4 Kf6 31. Kf2 Re8 32. Rc4 Re5 33. Ra4 Rh5 34. Kg3 Ke5 35. h4 g5 36. hxg5 Rxg5+ 37. Kf3 Rh5 38. Rxa7 Rh3+ 39. Kg4 Rh2 40. Kg3 Rc2 41. Re7+ Kd6 42. Rxh7 {And now Ra7 would win.} (42. Re8 {feels hotter.} Rxa2 43. Rd8+ Ke5 44. Kf3 Ke6 45. Rd5) 42... Rxa2 43. Kf4 Rf2+ 44. Ke3 Rb2 45. Rh6+ Kc7 46. Kd3 {next Kc4 is good for White.} Rxb3+ {Precision: White = 70%, Black = 83%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.24"]
[White "Mithil, Ajgaonkar"]
[Black "Shyaamnikhil P"]
[Result "1-0"]
[ECO "A40"]
[WhiteElo "2332"]
[BlackElo "2429"]
[Annotator "TA"]
[PlyCount "34"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 1,1,25]} 1. d4 {Predecessor:} Nf6 $146 2. c4 g6 3. g3 c6 4. Bg2 d5 5. cxd5 cxd5 6. Nf3 Bg7 7. Ne5 O-O 8. Nc3 Bf5 9. O-O Ne4 10. g4 Be6 11. Nxe4 dxe4 12. Bxe4 Nc6 13. Nxc6 bxc6 14. e3 Qd7 15. Bf3 Rab8 16. b3 c5 17. Bb2 c4 {½-½ (46) Ding,L (2813)-Mamedyarov,S (2817) Wijk aan Zee 2019} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.25"]
[White "Gomes, Mary Ann"]
[Black "Dimakiling, Oliver"]
[Result "1/2-1/2"]
[ECO "A05"]
[WhiteElo "2312"]
[BlackElo "2423"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,94,40,42,39,37,35,70,57,52,31,30,34,36,12,25,29,24,24,49,16,26,29,27,27,29,29,67,80,72,34,112,121,119,109,118,109,111,105,102,102,108,114,120,114,104,120,114,113,153,134,240,247,247,247,243,235,230,242,344,337,306,331,352,163,329,322,319,100,531,525,516,532,2529,59,60,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 b6 3. g3 Ba6 (3... Bb7 4. Bg2 g6 5. O-O c5 6. e3 Bg7 7. d4 O-O 8. Nc3 Ne4 9. Ne2 Nc6 10. Nf4 e6 11. Re1 f5 12. d5 exd5 13. Nxd5 Ne7 14. Nf4 Qc7 15. a4 g5 16. Nh5 g4 {0-1 (29) Svidler,P (2737)-Andreikin,D (2719) St Petersburg 2018}) 4. b3 c6 5. Bg2 d5 6. d3 {A15: English Opening: 1...Nf6} Nbd7 7. Bb2 g6 $146 ({Predecessor:} 7... Qc7 8. Nc3 e5 9. cxd5 cxd5 10. Rc1 Qd6 11. O-O g6 12. Nb1 {1-0 (26) Karatorossian,D (2250)-Mashalov,A (1636) Yerevan 2017}) 8. O-O {White is slightly better.} Bg7 9. Nbd2 O-O 10. b4 Re8 11. Ne5 Bb7 12. Qc2 Nxe5 13. Bxe5 Bh6 14. Nb3 Ng4 15. Bc3 e5 16. h3 $36 {[%mdl 2048] White is more active.} Nf6 17. a4 e4 18. Qb2 Nh5 19. dxe4 dxe4 (19... dxc4 $14 20. Rad1 Qc7) 20. e3 $1 $16 {g4 is the strong threat.} Bf8 21. Rfd1 Qc7 22. c5 Ba6 23. cxb6 axb6 24. a5 Bd3 25. axb6 Qxb6 {[#]} 26. Rxa8 $1 Rxa8 27. Nc1 Bc4 28. Bxe4 Ng7 29. Nb3 h5 (29... Ne6 $16 30. Bg2 Bd5) 30. Na5 $18 Bd5 31. Bxd5 cxd5 32. Rxd5 Qe6 33. Qd2 Qxh3 {[#]} (33... Rc8 {is a better defense.}) 34. Qd4 $1 Rc8 {[#]} 35. Rc5 $1 {[%mdl 512]} Re8 (35... Bxc5 36. Qxg7#) 36. Nc4 (36. b5 $142) 36... h4 $2 (36... Qg4) 37. gxh4 f6 38. Qxf6 $2 (38. Rc6 $18 {and White stays clearly on top.} Be7 39. Qd5+ Kh7 40. Qg2 (40. Bxf6 Rd8 $15) 40... Qxh4 41. b5) 38... Qg4+ $2 {[%mdl 8192]} (38... Re4 $16 39. Ne5 Rxh4 40. Qf7+ Kh7 41. Qxg6+ Kg8) 39. Kh2 {White threatens Rc7 and mate.} Re6 40. Ne5 Bd6 41. Qd8+ $2 (41. Rc8+ $18 Kh7 42. Qf7 Qxh4+ 43. Kg2 Bxe5 44. Qg8+ Kh6 45. Bxe5 Qg5+ 46. Kf1) 41... Kh7 $1 $14 42. Rd5 ({White should play} 42. Qg5 $14 Qe4 43. Kg1 Bxc5 44. bxc5 Qb1+ 45. Kg2 Qe4+ 46. Kg1 Qb1+ 47. Kg2 Qe4+ 48. Kg1) 42... Qf3 $1 $11 {[%cal Rf3f2][%mdl 64] Double Attack. The position is equal.} 43. Rxd6 Qxf2+ 44. Kh1 Qf1+ 45. Kh2 {Hoping for Rd2.} Qf2+ {[%mdl 64] Double Attack} 46. Kh1 {And now Rd2 would win.} Qf1+ 47. Kh2 {aiming for Rd2.} Qf2+ {[%mdl 64] Double Attack. Accuracy: White = 66%, Black = 34%.} 1/2-1/2

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.26"]
[White "Quizon, Daniel"]
[Black "Raja, Rithvik R"]
[Result "1-0"]
[ECO "C77"]
[WhiteElo "2268"]
[BlackElo "2423"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,71,29,28,38,31,31,31,33,31,32,26,67,54,58,47,61,60,84,78,70,101,128,135,183,175,393,383,351,101,75,37,90,46,41,29,60,70,92,93,91,88,93,95,102,88,136,153,214,218,214,210,211,199,277,277]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. d3 b5 6. Bb3 Bc5 7. c3 d6 8. Bg5 {C77: Ruy Lopez: 3...a6 4 Ba4 Nf6, unusual lines} h6 9. Bh4 g5 (9... O-O 10. Nbd2 Be6 11. O-O Bb6 12. Re1 Bxb3 13. Nxb3 Nb8 14. d4 Nbd7 15. a4 Re8 {½-½ (67) Carlsen,M (2842)-Mamedyarov,S (2801) Biel 2018}) 10. Bg3 {LiveBook: 6 Games. White has an edge.} Bg4 11. h3 Bh5 12. Nbd2 Bg6 $146 ({Predecessor:} 12... O-O 13. Qe2 Rb8 14. Bh2 g4 15. hxg4 Bxg4 {1-0 (33) Paehtz,E (2211)-Juergens,V (2300) Chemnitz 1999}) 13. O-O O-O 14. Re1 Nh5 15. Nf1 Rb8 16. d4 exd4 17. cxd4 (17. Nxd4 Nxd4 18. cxd4 Bb6 $11) 17... Nxg3 18. Nxg3 Bb6 19. Rc1 Na5 20. Bd5 c5 21. e5 cxd4 $2 (21... c4) 22. e6 $18 Qf6 {[#]} 23. exf7+ $2 (23. Ne4 $1 $18 {[%cal Re4f6] is the precise move to win.} Bxe4 24. exf7+ Rxf7 25. Rxe4 (25. Bxf7+ Kxf7 26. Rxe4 Nc4 $18)) 23... Bxf7 $16 24. Ne4 Qf4 ({Black should try} 24... Qg6 $14 25. Bxf7+ Rxf7) 25. g3 Qf5 26. Nxd4 Bxd4 ({Not} 26... Qxh3 $2 27. Nf6+ Kg7 28. Bg2 $18) 27. Bxf7+ Rxf7 28. Qxd4 Nc4 29. Re2 Rbf8 30. Nxd6 Nxd6 31. Qxd6 Qxh3 32. Rc6 Qd7 (32... Qf5 $16) 33. Qxd7 $18 ({Don't play} 33. Rxa6 $6 Qxd6 34. Rxd6 Rf6) 33... Rxd7 34. Rxh6 Ra8 35. Ree6 a5 (35... Rd1+ {was called for.} 36. Kg2 Rd2 37. Rxa6 Rf8 38. Rag6+ Kf7) 36. Re5 {Precision: White = 77%, Black = 32%.} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.27"]
[White "Dang, Hoang Son"]
[Black "Vo, Thanh Ninh"]
[Result "0-1"]
[ECO "C00"]
[WhiteElo "2385"]
[BlackElo "2358"]
[Annotator "NA"]
[PlyCount "140"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 8,113,-6,-6,0,32767,-6,-1,10,-9,-16,-8,6,16,17,12,20,17,21,9,23,12,11,0,0,9,26,0,4,0,301,0,0,-8,0,0,0,0,0,0,0,0,34,35,172,7,0,0,0,0,0,0,0,-17,32767,32767,32767,32767,0,-31,-20,0,-22,-19,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1281,32767,32767,32767,32767,-457,-517,-458,-685,-689,-653,-462,-620,-443,-610,32767,32767,32767,32767,32767,32767,-393,-549,-524,-595,-803]} 1. e4 {[%emt 0:01:41]} e6 {[%emt 0:00:13]} 2. d3 {[%emt 0:00:28]} d5 {[%emt 0:00:15]} 3. Nd2 {[%emt 0:00:07]} Nf6 {[%emt 0:02:38]} 4. Ngf3 {[%emt 0:00:08]} b6 {[%emt 0:05:44]} 5. e5 {[%emt 0:02:12]} Nfd7 {[%emt 0:01:13]} 6. d4 {[%emt 0:00:32]} c5 {[%emt 0:00:42] LiveBook: 51 Games} 7. c3 {[%emt 0:00:26]} Ba6 {[%emt 0:04:19] C00: French: Unusual White 2nd moves} (7... Be7 8. Bb5 Ba6 9. a4 cxd4 10. cxd4 Qc8 11. Qe2 Qb7 12. O-O Bxb5 13. axb5 a6 14. Ne1 axb5 15. Rxa8 Qxa8 {½-½ (86) Andriasian,Z (2613)-Hou,Y (2590) Moscow 2010}) 8. a3 {[%emt 0:03:58]} Bxf1 {[%emt 0:03:58]} 9. Nxf1 {[%emt 0:02:11]} c4 {[%emt 0:00:15]} 10. Ng3 {[%emt 0:00:56]} Nc6 $146 {[%emt 0:00:17]} ({Predecessor:} 10... Be7 11. O-O Nc6 12. Be3 Qc7 13. Qc2 h6 {0-1 (43) Pokora,L (2009)-Boruvka,R Liberec 2006}) 11. O-O {[%emt 0:00:20]} Na5 {[%emt 0:05:26]} 12. Be3 {[%emt 0:02:39]} Nb3 {[%emt 0:12:10]} 13. Rb1 {[%emt 0:00:54]} Be7 {[%emt 0:00:21]} 14. Nd2 {[%emt 0:00:18]} Nxd2 {[%emt 0:00:05]} 15. Bxd2 {[%emt 0:00:06]} g6 {[%emt 0:08:27]} 16. Bh6 {[%emt 0:03:00]} Bf8 {[%emt 0:02:29]} 17. Bxf8 {[%emt 0:01:48]} Kxf8 {[%emt 0:00:33]} 18. f4 {[%emt 0:00:09]} Nb8 $2 {[%emt 0:01:28] [#]} (18... Qe7 $11 {and Black is okay.}) 19. Rf2 $2 {[%emt 0:00:57]} (19. f5 $1 $18 {[%cal Rf5e6][%mdl 512]} exf5 {[#]} 20. Nxf5 $1 {[%mdl 512]} gxf5 21. Rxf5) 19... Nc6 {[%emt 0:00:08]} 20. Nf1 {[%emt 0:00:11]} Ne7 {[%emt 0:03:03]} 21. g4 {[%emt 0:03:02]} h5 {[%emt 0:00:14]} 22. h3 {[%emt 0:00:04]} Ke8 {[%emt 0:09:10]} 23. Ne3 {[%emt 0:00:39]} hxg4 {[%emt 0:00:14]} 24. hxg4 {[%emt 0:00:06]} Rh3 {[%emt 0:00:11]} 25. Rh2 {[%emt 0:01:00]} Rxe3 {[%emt 0:02:38]} (25... Rxh2 $14 26. Kxh2 b5) 26. Rh8+ $2 {[%emt 0:02:42]} (26. Qa4+ $18 Kf8 27. Kf2) 26... Kd7 {[%emt 0:00:05]} 27. Rxd8+ {[%emt 0:02:25]} Rxd8 {[%emt 0:00:04]} 28. Kg2 {[%emt 0:00:09]} Rh8 {[%emt 0:00:26]} 29. Qa4+ {[%emt 0:00:53]} Nc6 {[%emt 0:00:04]} 30. Rh1 {[%emt 0:00:41]} Rxh1 {[%emt 0:10:24]} 31. Kxh1 {[%emt 0:00:02]} Re1+ {[%emt 0:00:05]} 32. Kh2 {[%emt 0:00:03]} Re2+ {[%emt 0:00:03] Double Attack} 33. Kg3 {[%emt 0:00:10]} Rxb2 {[%emt 0:00:03]} 34. Qd1 {[%emt 0:00:13]} Rb3 {[%emt 0:00:10]} 35. Qd2 {[%emt 0:00:05]} Rxa3 {[%emt 0:00:22]} 36. Kh4 {[%emt 0:00:05]} b5 {[%emt 0:00:26]} 37. Kg5 {[%emt 0:00:07]} Ra6 {[%emt 0:16:20]} 38. Kf6 {[%emt 0:00:22]} Nd8 {[%emt 0:00:04]} 39. Qb2 {[%emt 0:00:13]} Rb6 {[%emt 0:00:07]} 40. Qb4 {[%emt 0:00:25]} Rb7 {[%emt 0:00:17]} 41. Kg7 {[%emt 0:00:37]} Ke8 $1 {[%emt 0:03:34]} 42. Kg8 {[%emt 0:02:22]} Rb6 {[%emt 0:00:38]} 43. Qc5 {[%emt 0:00:42]} b4 {[%emt 0:03:12]} 44. cxb4 {[%emt 0:00:16]} Rc6 $2 {[%emt 0:00:02]} (44... Rb7 $11) 45. Qf8+ {[%emt 0:00:13]} Kd7 {[%emt 0:00:04]} 46. b5 {[%emt 0:00:08]} Rc7 {[%emt 0:00:14]} 47. Qd6+ {[%emt 0:03:05]} Kc8 {[%emt 0:00:04]} 48. Qa6+ {[%emt 0:00:18] [#]} Kb8 $1 {[%emt 0:01:09]} 49. b6 {[%emt 0:00:46]} axb6 {[%emt 0:00:24]} 50. Qxb6+ {[%emt 0:00:06] [#]} Nb7 $1 {[%emt 0:00:44]} 51. Qb2 {[%emt 0:00:21]} c3 {[%emt 0:00:04]} 52. Qc2 {[%emt 0:00:02]} Na5 {[%emt 0:01:44]} 53. Kf8 {[%emt 0:00:14]} Ka7 {[%emt 0:02:05]} 54. Ke8 {[%emt 0:01:14]} Kb6 {[%emt 0:00:31]} 55. Qb1+ {[%emt 0:00:26]} Ka6 {[%emt 0:00:34]} 56. Qc2 $19 {[%emt 0:00:28] [#]} Kb5 $1 {[%emt 0:00:14]} 57. Kd8 {[%emt 0:00:14]} Rc4 {[%emt 0:00:30]} 58. Kd7 {[%emt 0:04:44]} Nc6 {[%emt 0:01:07]} 59. f5 {[%emt 0:00:47]} gxf5 {[%emt 0:00:12]} 60. gxf5 {[%emt 0:00:07]} Nb4 {[%emt 0:02:19]} 61. Qc1 {[%emt 0:01:00]} c2 {[%emt 0:02:36]} 62. fxe6 {[%emt 0:00:03]} fxe6 {[%emt 0:00:08]} 63. Kxe6 {[%emt 0:00:04]} Nd3 {[%emt 0:00:25]} 64. Qa3 {[%emt 0:00:06]} Nf4+ {[%emt 0:00:46]} 65. Kf5 {[%emt 0:01:59]} c1=Q {[%emt 0:00:05]} 66. Qa7 {[%emt 0:00:10]} Qe3 {[%emt 0:01:12]} 67. Qb7+ {[%emt 0:00:42]} Ka4 {[%emt 0:00:11]} 68. Qa6+ {[%emt 0:01:07]} Kb3 {[%emt 0:00:09]} 69. Kf6 {[%emt 0:01:28]} Qxd4 {[%emt 0:00:20]} 70. Qd6 {[%emt 0:00:49]} Nd3 0-1

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.28"]
[White "Sukandar, Irine Kharisma"]
[Black "Tran, Minh Thang"]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2381"]
[BlackElo "2343"]
[Annotator "NA"]
[PlyCount "63"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

{[%evp 12,56,5,19,32767,20,14,22,33,18,0,12,122,114,277,288,265,306,275,268,278,280,32767,275,276,275,286,267,311,288,297,305,264,279,286,272,265,280,279,280,313,288,410,436,679,698,653]} 1. e4 {[%emt 0:00:00]} c5 {[%emt 0:05:52]} 2. Nf3 {[%emt 0:00:23]} e6 {[%emt 0:00:10]} 3. c4 {[%emt 0:00:52]} Nc6 {[%emt 0:00:38]} 4. Nc3 {[%emt 0:00:18]} Nf6 {[%emt 0:00:27]} 5. Be2 {[%emt 0:00:52]} Be7 {[%emt 0:00:45]} 6. O-O {[%emt 0:00:50]} e5 {[%emt 0:01:28]} 7. d3 {[%emt 0:00:28]} h6 {[%emt 0:00:08] A34: Symmetrical English: 2 Nc3, lines with ...d5} (7... O-O 8. a3 d6 9. Rb1 {½-½ (9) Oratovsky,M (2486)-Vazquez Igarza,R (2596) San Sebastian 2015}) 8. a3 $146 {[%emt 0:00:55]} ({Predecessor:} 8. Be3 O-O 9. Nd2 d6 10. f4 Nd4 11. h3 a6 12. f5 Bd7 13. g4 Nh7 14. Bxd4 exd4 15. Nd5 {½-½ (42) Rosenhain,R (1647)-Spangenberg,R (1788) Germany 2014}) 8... O-O {[%emt 0:09:19]} 9. Rb1 {[%emt 0:00:26]} b6 {[%emt 0:09:28]} 10. Nd5 {[%emt 0:02:19]} d6 {[%emt 0:01:58]} 11. b4 {[%emt 0:08:40]} Bg4 {[%emt 0:07:32]} (11... Bd7 $11) 12. Nxe5 $1 {[%emt 0:20:52]} Bxe2 $2 {[%emt 0:08:55]} (12... Nxe5 $16 {is a better defense.} 13. Nxf6+ Bxf6) 13. Nxc6 {[%emt 0:00:17]} Bxd1 {[%emt 0:02:40]} 14. Ndxe7+ {[%emt 0:00:18]} Kh7 {[%emt 0:00:42]} 15. Nxd8 {[%emt 0:00:06]} Bc2 {[%emt 0:02:09]} 16. Rb2 {[%emt 0:01:23]} Bxd3 {[%emt 0:00:07]} 17. Rd1 {[%emt 0:00:56]} Bxc4 {[%emt 0:01:30]} 18. Ndc6 {[%emt 0:04:08]} Nxe4 {[%emt 0:00:11]} 19. f3 {[%emt 0:06:38]} Nc3 {[%emt 0:01:04]} 20. Rxd6 {[%emt 0:00:33]} Ne2+ {[%emt 0:05:17] [#]} 21. Kh1 $1 {[%emt 0:01:35]} ({Weaker is} 21. Rxe2 Bxe2 22. bxc5 bxc5 $16) 21... cxb4 {[%emt 0:02:55]} 22. Rxb4 {[%emt 0:01:29]} b5 {[%emt 0:01:19]} 23. Be3 {[%emt 0:01:35]} a5 {[%emt 0:01:06]} 24. Rb1 {[%emt 0:00:46]} Rfe8 {[%emt 0:01:10]} 25. Bd2 {[%emt 0:01:38]} b4 {[%emt 0:06:59]} 26. axb4 {[%emt 0:00:47]} a4 {[%emt 0:00:05]} 27. Nd5 {[%emt 0:09:53]} a3 {[%emt 0:04:40]} (27... Re6 $142) 28. Nc7 $18 {[%emt 0:04:26]} a2 {[%emt 0:01:27]} 29. Ra1 {[%emt 0:00:07]} Ra3 {[%emt 0:02:22]} 30. Nxe8 {[%emt 0:01:40]} Rb3 {[%emt 0:00:06]} 31. Be1 {[%emt 0:00:53]} Nf4 {[%emt 0:06:34]} 32. Na5 {[%emt 0:02:32]} 1-0

[Event "9th HDBank Open 2019"]
[Site "Ho Chi Minh City"]
[Date "2019.03.12"]
[Round "8.30"]
[White "Priyanka Nutakki"]
[Black "Chanda, Sandipan"]
[Result "0-1"]
[ECO "A16"]
[WhiteElo "2297"]
[BlackElo "2534"]
[Annotator "TA"]
[PlyCount "102"]
[EventDate "2019.03.07"]
[EventType "swiss"]
[EventCountry "VIE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,102,2,12,-13,0,0,0,0,-4,-18,17,-53,-45,-43,-23,-31,0,-79,-79,-96,-89,-100,-109,-141,-135,-157,-119,-141,-126,-134,-72,-160,-159,-158,-158,-171,-167,-183,-175,-173,-159,-180,-190,-257,-258,-301,-308,-306,-299,-310,-306,-353,-359,-341,-349,-424,-433,-425,-426,-463,-466,-471,-464,-458,-437,-440,-458,-616,-592,-778,-716,-670,-621,-688,-687,-614,-643,-617,-617,-620,-617,-597,-586,-814,-681]} 1. c4 Nf6 2. Nc3 d5 3. cxd5 Nxd5 4. Nf3 g6 5. d4 Bg7 6. Bd2 O-O 7. e4 Nb6 8. Be3 Bg4 9. Be2 Nc6 {D90: Grünfeld: 4 Nf3 Bg7 sidelines} 10. e5 (10. d5 Bxf3 11. gxf3 Ne5 12. Qb3 c5 13. f4 c4 14. Qc2 Nd3+ 15. Bxd3 cxd3 16. Qxd3 Rc8 17. Bd4 Bxd4 18. Qxd4 Nc4 19. b3 Nd6 20. O-O {½-½ (39) So,W (2812)-Topalov,V (2749) Paris 2017}) 10... Qd7 {LiveBook: 5 Games} 11. Qd2 Rad8 {The position is equal.} 12. Rd1 $1 f6 {[%cal Rf6e5]} 13. exf6 exf6 14. O-O {[#]} f5 $146 ({Predecessor:} 14... Rfe8 15. Rfe1 Kh8 16. h3 Bxf3 17. Bxf3 {½-½ (33) Matviishen,V (2423)-Socko,B (2592) Suwalki 2018}) 15. d5 (15. Bg5 $11) 15... Bxf3 $1 $15 16. Bxf3 Ne5 $36 {[%mdl 2048] Black fights for an advantage.} 17. Be2 f4 18. Bd4 {[#]} (18. Bxf4 $11 Nec4 19. Bxc4 Nxc4 20. Qc1) 18... f3 $1 $17 19. Bxe5 fxg2 ({Don't play} 19... Bxe5 $6 20. Bxf3 Rxf3 21. gxf3 $11) 20. Kxg2 {aiming for f4.} Bxe5 21. f3 Rf4 {Threatens to win with ...Rh4.} 22. Qe3 Qf5 23. Kh1 Rh4 24. Rf2 Bf4 (24... Kg7 $142 25. f4 Rxf4) 25. Qe6+ ({White should play} 25. Qe7 Qg5 26. Qxg5 Bxg5 27. Ne4) 25... Qxe6 26. dxe6 Re8 27. Ne4 Rxe6 28. b3 Kg7 29. Bf1 Re5 30. Rc2 Nd5 31. h3 (31. Bc4 {is a better defense.} Nb6 32. Bf1) 31... Kh6 $19 32. Rc5 Ne3 33. Rxe5 Bxe5 34. Re1 Nxf1 35. Rxf1 Rxh3+ {[%mdl 4096] Endgame KRB-KRN} 36. Kg1 g5 37. Nf2 Rg3+ {Black is clearly winning.} 38. Kh1 {White wants to play Ng4+.} Kg6 39. Ne4 Rh3+ 40. Kg1 Kf5 41. Nc5 b6 42. Nd3 Bd6 43. a4 a5 44. Kf2 h5 45. Ke2 Bf4 46. Nf2 Rh2 {[#] ...Bg3 is the strong threat.} 47. Kd3 g4 48. fxg4+ hxg4 {[%cal Bh5g4,Bg4g3][%mdl 32]} 49. Kc4 {intending Nd3.} g3 50. Nd3 Rh4 {White must now prevent ...g2.} 51. Kb5 Rg4 {Precision: White = 33%, Black = 71%.} 0-1

