[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.18"]
[Round "1"]
[White "Lu, Shanglei"]
[Black "Zhou, Jianchao"]
[Result "1/2-1/2"]
[ECO "B48"]
[WhiteElo "2640"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "140"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,140,25,26,7,21,10,24,21,27,26,38,19,18,13,17,17,16,12,20,15,20,11,20,6,36,36,36,36,36,26,37,38,38,29,30,35,30,30,31,37,38,50,30,37,34,45,54,60,60,46,74,51,55,17,72,71,73,72,65,72,78,62,92,82,97,90,106,33,33,33,340,340,322,317,294,271,259,88,88,88,113,113,113,16,99,80,80,80,80,80,81,81,81,80,85,80,80,24,80,80,80,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Qd2 Nf6 8. f3 Be7 {B48: Sicilian: Taimanov: 5 Nc3 Qc7 6 Be3 a6 without Be2} 9. g4 (9. O-O-O b5 10. g4 Nxd4 11. Bxd4 Bb7 12. g5 Nh5 13. Ne2 Rc8 14. c3 O-O 15. Bh3 f5 16. gxf6 Nxf6 17. Bxf6 Rxf6 18. Qxd7 Rxf3 19. Qxe6+ {1-0 (30) Fedoseev,V (2724)-Quesada Perez,Y (2627) chess.com INT 2018}) 9... b5 {LiveBook: 13 Games} 10. Nxc6 dxc6 11. h4 $146 ({Predecessor:} 11. Bg2 O-O 12. O-O-O e5 13. Qf2 Be6 14. Bb6 Qb7 15. Kb1 Nd7 16. Be3 a5 {0-1 (35) Vujnovic,P (2091)-Purgar,I (2170) Zagreb 2016}) 11... Qg3+ (11... Bb7 {seems wilder.} 12. Qf2 O-O 13. g5 Nd7 14. O-O-O Rad8) 12. Qf2 Qxf2+ 13. Kxf2 Bb7 14. g5 Nd7 $1 15. Bh3 Bc5 16. Ne2 Bxe3+ 17. Kxe3 Ke7 18. b3 c5 19. h5 g6 20. Nf4 Ne5 21. Nd3 Nxd3 22. cxd3 gxh5 23. Rac1 Rac8 24. Bf1 h6 25. Rxh5 hxg5 26. Rxh8 Rxh8 27. Rxc5 $14 {[%mdl 4096] Endgame Strongly threatening Rc7+. KRB-KRB} Rc8 $1 {[%cal Rc8c5]} 28. Rxg5 Rc1 29. Be2 Rc2 30. a4 Bc6 31. Bd1 Ra2 {[%cal Rb5a4]} 32. axb5 Bxb5 33. Rc5 Kd6 34. Rc8 Ra1 35. Bc2 Bc6 (35... Re1+ $11 36. Kf2 Rc1) 36. d4 $16 a5 37. Rf8 Ke7 38. Rb8 Ra2 39. Kd2 f5 40. Kc3 fxe4 41. fxe4 a4 42. b4 ({White should try} 42. Rb6 $16 Bd7 43. b4) 42... Ra3+ $14 43. Kc4 {Hoping for b5.} Re3 $2 {[%mdl 8192] [#]} (43... Ra1 $1 $14) 44. d5 $1 $18 {[%cal Rd5c6]} exd5+ 45. exd5 Bd7 46. Ra8 a3 47. b5 $2 (47. Bd3 $18) 47... Kd6 $16 48. b6 {Threatening mate with b7.} Re8 49. b7 ({Don't play} 49. Rxa3 Rc8+ 50. Kb3 Kxd5 $11) 49... Kc7 50. Ra7 (50. Kc5 $16 {And now Ra7 would win.} Kxb7 51. Rxa3) 50... Rb8 (50... Re3 $1 $11) 51. Kc5 {White threatens d6+ and mate.} Rxb7 52. Rxa3 Rb5+ {[#]} 53. Kd4 $1 Rb2 54. Be4 Re2 55. Ke5 Be8 56. Rg3 Kb6 57. Rg8 (57. Rc3 $16) 57... Ba4 (57... Bh5 $11 {keeps the balance.}) 58. Kd4 Rd2+ 59. Kc3 (59. Ke3 $16 Rh2 60. Rc8) 59... Rd1 $11 {The position is equal.} 60. Bf3 Rf1 $1 61. Be2 Re1 62. Bc4 Kc5 63. Rc8+ Kd6 64. Kd4 Rd1+ 65. Kc3 Bb5 66. Rb8 Rc1+ 67. Kd2 Rxc4 68. Rxb5 Rd4+ 69. Ke3 Rxd5 70. Rxd5+ Kxd5 {Precision: White = 52%, Black = 56%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.18"]
[Round "1"]
[White "Bai, Jinshi"]
[Black "Liu, Guanchu"]
[Result "1-0"]
[ECO "A30"]
[WhiteElo "2586"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "67"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,67,26,18,27,26,26,26,26,26,32,26,33,33,33,35,31,31,29,29,29,30,30,31,48,18,20,32,26,29,22,32,31,12,15,0,218,225,223,225,224,245,416,415,408,376,385,386]} 1. Nf3 Nf6 2. c4 e6 3. b3 b6 4. g3 Bb7 5. Bg2 c5 6. O-O Be7 7. Bb2 O-O 8. d4 cxd4 9. Qxd4 Nc6 10. Qf4 d5 11. Rd1 {A30: Symmetrical English: Double Fianchetto and Hedgehog} Qb8 12. Ne5 {LiveBook: 4 Games} Bd6 {[%cal Rc6e5]} 13. Nxc6 {White has an edge.} Bxc6 14. Qe3 (14. Qh4 Be7 15. Nc3 Qb7 16. cxd5 Nxd5 17. Qc4 b5 18. Qd3 Rfd8 19. Nxd5 Bxd5 20. Bxd5 Rxd5 {½-½ (33) Melkumyan,H (2640)-Inarkiev,E (2730) Izmir 2016}) 14... Bc5 15. Qf3 $146 ({Predecessor:} 15. Bd4 Bxd4 16. Qxd4 Rd8 17. Nc3 Bb7 18. Qe3 Re8 19. cxd5 exd5 {1-0 (35) Gunnarsson,A (2437)-Solomon,K (2358) Mallorca 2004}) 15... Ne4 16. e3 f5 17. Qe2 dxc4 18. Qxc4 Qe8 19. Nd2 {[%cal Rd2e4]} Bd5 20. Qe2 Qg6 21. Rac1 Rad8 22. Be5 Nf6 23. Bxf6 Qxf6 24. Bxd5 Rxd5 25. Nf3 Rfd8 26. Rxd5 Rxd5 27. Qa6 Qe7 28. a3 h6 $2 {[#]} (28... Bxa3 $11 {and Black has nothing to worry.} 29. Rc8+ Kf7) 29. b4 $18 Bd6 30. Rc8+ Kh7 31. Ra8 b5 $2 (31... Be5 32. Nxe5 (32. Qxa7 Qxa7 33. Rxa7 Bc3 $16) (32. Rxa7 Qd8 $18) 32... Rxe5 33. Rxa7 Qd8) 32. Rxa7 {White is winning.} Qf6 33. Qc6 f4 34. Qc2+ {Precision: White = 82%, Black = 64%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.18"]
[Round "1"]
[White "Xu, Xiangyu"]
[Black "Liu, Yan"]
[Result "0-1"]
[ECO "E00"]
[WhiteElo "2574"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "164"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,164,8,16,14,19,14,29,28,23,12,14,12,14,14,12,12,14,14,14,14,32,18,22,20,22,22,26,7,27,16,15,14,17,17,17,16,17,17,17,17,21,8,12,0,0,0,0,0,0,0,0,0,0,0,0,-7,0,0,0,0,0,-2,-2,-25,-3,-3,-3,-9,0,-128,-125,-265,-245,-385,-390,-384,-371,-887,-762,-1049,-968,-409,-795,-645,-630,-615,-569,-1040,-1116,-1008,-551,-504,-87,-87,-87,-87,-87,-443,-90,-123,-83,-83,-83,-216,-216,-216,-216,-216,-216,-216,-216,-391,-216,-216,-216,-29967,-29969,-29972,-29972,-29980,-29978,-29982,-29979,-29979,-29980,-29986,-29983,-29983,-29984,-29984,-29984,-29985,-29986,-29992,-29993,-29994,-29994,-29994,-29995,-29995,-29996]} 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Nd2 c5 5. a3 Bxd2+ 6. Qxd2 cxd4 7. Nf3 b6 8. Bg2 Bb7 9. O-O Bxf3 10. exf3 {[%cal Be2f3,Bf3f4][%mdl 32] E00: Catalan Bogo-Indian (3 g3 Bb4+)} Nc6 11. b4 Rc8 12. f4 O-O 13. Bb2 d6 {LiveBook: 3 Games} 14. Bxd4 Nxd4 15. Qxd4 {[#]} e5 $146 ({Find the theoretical novelty and annotate with similar games:} 15... Qc7 16. Rfc1 Rfd8 17. Qe3 Qd7 18. Qd4 Qc7 19. Qe3 Qd7 20. Qd4 {½-½ (20) Volkov,S (2615)-Tomashevsky,E (2707) Taganrog 2011}) 16. fxe5 dxe5 17. Qxe5 {Black must now prevent Rfd1.} Rxc4 18. Rac1 Qd3 19. Rxc4 Qxc4 20. Re1 h6 21. Bf1 Qc8 22. Qf4 Qc3 23. Re3 Qc1 {Strongly threatening ...Nd5.} 24. Qf3 Rd8 25. Kg2 Qc7 26. Bd3 Qd7 27. Bc4 Rc8 28. Bb3 Kf8 29. Rd3 Qc6 30. Rd8+ Ke7 31. Rxc8 Qxc8 32. h3 Kf8 33. g4 Qe8 34. Bc2 Qd8 35. Bb3 g6 36. Qe3 Kg7 37. f3 Qd6 38. h4 Nd7 39. Kh3 Ne5 40. Bc2 Qf6 41. Be4 Nc4 42. Qd3 Nd6 43. Bd5 Qe5 44. Bb3 h5 45. Kg2 hxg4 46. fxg4 Ne4 47. Qe3 (47. Kf3 $11 Nd6 48. Kg2) 47... Qb2+ $1 $17 48. Kh3 (48. Kg1 $17 {only move.}) 48... Nd2 $1 $19 {[%cal Rd2f1]} 49. Bd5 (49. Bd1 {might work better.} Nf1 50. Qf4 Qxa3+ 51. Qf3) 49... Nf1 {[%csl Gf1][%cal Rb2h2]} 50. Qf4 Qxa3+ 51. Qf3 $2 (51. Kg2 Ne3+ 52. Kf2 Nxd5 53. Qd4+ Kg8 54. Qxd5) 51... Qxf3+ 52. Bxf3 {[%mdl 4096] Endgame KB-KN} a5 53. bxa5 bxa5 54. Kg2 Nd2 55. Bc6 Nc4 $1 {[%cal Rc4b6]} 56. h5 g5 57. Be8 Ne5 58. Kg3 {and the idea Ba4 leaves White hopeful.} Kf6 $2 (58... f6 $19 59. Bb5 Kg8) 59. Bb5 $17 Ke7 60. Ba4 Kf8 61. Bb5 $2 {[%mdl 8192]} (61. Bc2 $17) 61... Kg8 $2 (61... f6 $19 62. Ba4 Nd3) 62. Ba4 f6 {[%cal Bf7f6,Bf6f5,Bf5f4][%mdl 32]} 63. Bd1 Kg7 64. Kf2 {[#]} (64. Bb3 $17 {is a better defense.}) 64... a4 $1 $19 {[%cal Ra4a3][%mdl 512]} 65. Bxa4 Nxg4+ 66. Kf3 f5 $1 67. Bc2 Kf6 68. Ba4 $2 (68. Bb3) 68... Ke5 (68... Ne5+ $142 69. Ke3 Kf7 70. Bb3+ Kf6) 69. Bd7 {[#]} Nh6 $1 ({Much less strong is} 69... Nf6 70. h6 $15) 70. Kg3 $2 {[#]} (70. Bc6 $19) 70... Ke4 $1 {Black mates.} 71. Bc8 f4+ 72. Kh3 Kf3 73. Bd7 Kf2 74. Be6 f3 75. Bg4 Ke3 76. Bd7 Kf4 77. Kh2 g4 {[%cal Bg5g4,Bg4g3][%mdl 32]} 78. Be6 Nf5 79. Bd7 g3+ 80. Kh3 f2 {[%cal Rf2f1]} 81. Bb5 Ne3 82. Bf1 Nxf1 {Precision: White = 40%, Black = 67%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.18"]
[Round "1"]
[White "Xu, Yi"]
[Black "Zeng, Chongsheng"]
[Result "1-0"]
[ECO "B30"]
[WhiteElo "2522"]
[BlackElo "2542"]
[Annotator "TA"]
[PlyCount "126"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,126,0,0,41,43,34,19,35,35,34,20,29,22,63,47,41,17,30,38,52,58,91,82,86,70,206,197,175,84,108,119,156,139,150,162,239,252,272,260,262,252,332,328,330,330,323,313,309,270,315,327,241,235,235,228,228,228,245,228,228,228,228,228,228,202,218,181,197,181,184,177,195,191,245,235,266,195,214,195,418,418,414,413,418,393,393,409,385,390,460,454,387,186,399,404,392,355,354,381,374,346,474,490,571,571,1219,1222,1125,1098,1244,1172,29961,29963,4774,4134,29975]} 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. Bxc6 bxc6 5. d3 Ne7 6. h4 h5 {B30: Sicilian: 2...Nc6 3 Bb5, lines without ...g6} 7. e5 {LiveBook: 9 Games} Nf5 8. Nbd2 f6 {White is slightly better.} 9. Ne4 d6 10. exd6 Bxd6 11. Nxd6+ (11. b3 {with more complications.} e5 12. a4 Be7 13. Ba3 Be6 14. O-O) 11... Qxd6 12. b3 Qc7 $146 ({Predecessor:} 12... Qd5 13. Ba3 c4 14. O-O cxd3 15. Qxd3 Qxd3 16. cxd3 {0-1 (32) Xu,Y (2482)-Wang,H (2711) Caleta 2018}) 13. O-O e5 14. a4 Kf7 15. Ba3 Be6 16. Bxc5 Rad8 17. Qe2 Bd5 18. a5 g5 (18... Rh6 $14) 19. hxg5 $18 {c4 is the strong threat.} Rdg8 20. Be3 ({Not} 20. gxf6 $2 Rxg2+ 21. Kxg2 Nh4+ 22. Kh3 Nxf3 $19) (20. Ra4 $18 {is more deadly.}) 20... c5 21. Nd2 Nd4 22. Bxd4 $1 Rxg5 {[#]} 23. Ne4 $1 {[%cal Re4g5]} Rhg8 (23... Bxe4 $142 24. Qxe4 cxd4) 24. Nxg5+ Rxg5 25. f3 cxd4 26. Qf2 f5 27. Rae1 f4 28. Qh4 Kg6 29. Re2 Qxa5 30. Kf2 Qd8 31. Rg1 Qf6 32. Rh1 Qc6 {intending ...Rxg2+.} 33. Rh2 a5 34. Kf1 Qc7 35. Qe1 Kf6 36. Qa1 Qc5 37. Rf2 Bc6 38. Rh1 Kg6 39. Ke1 Qb4+ 40. Kd1 Kh6 41. Kc1 Bb5 42. Re2 Kg6 (42... Be8 {was worth a try.} 43. Kb2 Qc3+ 44. Ka2 Qc7) 43. Kb2 Be8 44. Qa3 {Strongly threatening Ra1.} Qc3+ 45. Kb1 {Hoping for Qd6+.} Qb4 $2 (45... Qc7 46. Qf8 Bf7) 46. Qxb4 axb4 {[%mdl 4096] Endgame KRR-KRB} 47. Kb2 Kf6 48. Ra1 h4 49. Ra6+ Kf5 50. Ra8 Bh5 51. Rf8+ Ke6 52. Rf2 (52. Rxf4 $142 Rxg2 53. Rxg2 exf4 54. Rh2 Bxf3 55. Rxh4) 52... h3 $2 (52... Rg3 {might work better.} 53. Rb8 h3 54. gxh3 Rxh3 55. Rxb4 Kf5) 53. gxh3 Rg3 54. h4 {[%cal Bh3h4,Bh4h5][%mdl 32]} Bxf3 55. Rh2 Ke7 56. Rc8 Bh5 57. Rh8 Bg4 58. h5 Kf7 59. h6 Rh3 60. Rg2 Rh4 61. Rb8 f3 {[#]} 62. Rxg4 $1 {[%mdl 512]} Rxh6 (62... Rxg4 63. h7) 63. Rgg8 Ke7 {Precision: White = 75%, Black = 35%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.18"]
[Round "1"]
[White "Xu, Jun"]
[Black "Fang, Yuxiang"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2501"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,86,44,42,62,68,73,70,95,102,97,97,129,116,227,228,261,274,284,160,182,184,172,170,159,65,47,-24,-41,-29,-37,-42,-26,-45,-37,-50,-45,-107,-100,-129,-129,-358,-387,-388,-384,-374,-372,-379,-381,-362,-367,-514,-475,-451,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. c4 e6 2. g3 d5 3. Bg2 Nf6 4. Nf3 dxc4 5. Qa4+ c6 6. Qxc4 b5 7. Qc2 Bb7 8. Nc3 {A13: English Opening: 1...e6} Nbd7 9. O-O Be7 10. d4 O-O 11. Rd1 Rc8 (11... Qb6 12. Ne5 Rfd8 13. Be3 Nd5 14. Nxd5 cxd5 15. Rac1 Rac8 16. Qd3 b4 17. Rxc8 Bxc8 {½-½ (41) So,W (2799)-Mamedyarov,S (2809) Berlin 2018}) 12. Ne5 {LiveBook: 6 Games} Nd5 13. Nxd7 Qxd7 14. Ne4 Rfd8 15. Bd2 Nb4 16. Qb3 $146 ({Predecessor:} 16. Bxb4 Bxb4 17. Nc5 Qe7 18. a3 Ba5 19. b4 Bb6 {½-½ (27) Galunov,T (2286)-Vasilev,M (2451) Svilengrad 2006}) 16... a5 17. Nc5 Bxc5 (17... Qc7 $16) 18. dxc5 $18 Qxd2 19. Rxd2 Rxd2 20. Rc1 (20. a4 $1 $18) 20... Rcd8 21. a3 {[%cal Ba2a3,Ba3a4][%mdl 32]} Nd5 {[%cal Bb4d5,Bd5c7,Bc7a6][%mdl 32]} 22. a4 $1 {[%cal Ra4b5]} Ba6 23. Bf1 (23. Rd1 $1 $16 {[%cal Rd1d2]} Rxe2 24. Bf3 bxa4 25. Qxa4 Rxb2 26. Qxc6) 23... b4 $1 $14 24. e4 (24. e3 $14 Bxf1 25. Rxf1) 24... Nc7 $11 25. Bxa6 Nxa6 26. Qc4 Nc7 {[%mdl 1024] Black has compensation.} 27. Rb1 R8d4 28. Qc1 e5 29. Qf1 (29. h4 $15) 29... g6 $1 $17 30. f4 Ne6 $1 (30... Rxe4 31. Re1 $15) 31. f5 $2 {[#]} (31. fxe5 $17 {is a better defense.} Rxe4 32. Rd1 Rxd1 33. Qxd1) 31... Ng5 $1 $19 ({Inferior is} 31... Nxc5 32. fxg6 hxg6 33. Qf6 $11) 32. fxg6 hxg6 33. Qf6 Nh3+ 34. Kh1 {And now Rf1 would win.} Nf2+ 35. Kg1 {aiming for Rf1.} Rxe4 36. Qxc6 (36. Qxf2 $142 Rxf2 37. Kxf2) 36... Kg7 37. Kf1 {[#] Black should prevent Re1.} ({But not} 37. Rf1 $2 Ree2 $19) 37... f5 $2 (37... Rc4 $1 $19 {Threatens to win with ...Rcc2.} 38. b3 Rcc2) 38. Re1 {The position is equal.} Ng4 $1 {[%cal Rg4h2]} 39. Rxe4 Nxh2+ 40. Ke1 Nf3+ 41. Kf1 Nh2+ 42. Ke1 Nf3+ 43. Kf1 Nh2+ {Precision: White = 46%, Black = 56%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.18"]
[Round "1"]
[White "Wang, Chen"]
[Black "Wen, Yang"]
[Result "0-1"]
[ECO "B26"]
[WhiteElo "2495"]
[BlackElo "2585"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,52,-11,-8,26,17,22,26,26,18,17,18,51,51,68,62,72,18,91,0,24,0,0,-97,-60,-233,-230,-255,-248,-562,-404,-504,-507,-463,-331]} 1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. Nge2 d6 6. O-O Nf6 7. d3 O-O 8. h3 Rb8 9. Be3 b5 {B26: Closed Sicilian: 3 g3, lines with early Be3} 10. a3 a5 11. Qd2 {LiveBook: 9 Games} Ba6 $146 {The position is equal.} ({Predecessor:} 11... b4 12. axb4 axb4 13. Nd1 Re8 14. Kh2 Bb7 15. f4 e6 16. Nf2 Nd7 17. c3 {1-0 (40) McShane,L (2640)-Andriasian,Z (2585) Katowice 2017}) 12. f4 b4 13. axb4 cxb4 14. Na4 {Hoping for e5.} Nd7 15. c4 e5 16. f5 Nd4 17. Nxd4 exd4 18. Bh6 (18. Bg5 $16 f6 19. Bf4) 18... Be5 (18... Bxh6 $11 19. Qxh6 Qe7) 19. g4 ({White should try} 19. Bxf8 $16 Qxf8 20. Qg5) 19... Bb7 20. g5 Bc6 21. Qf2 ({Resist} 21. Bxf8 $6 Nxf8 22. b3 Nd7 $16) (21. h4 $11 {remains equal.}) 21... Re8 22. b3 $2 {[#]} (22. h4 $15) 22... Bxa4 $1 $19 23. Rxa4 {[#]} Nc5 $1 {[%cal Bd7c5,Bc5b3,Bb3c5,Bc5e6][%mdl 32]} 24. f6 $2 (24. fxg6 {is a better chance.} fxg6 25. Ra2) 24... Nxb3 25. Bg7 Nc5 26. Raa1 Ne6 {Precision: White = 36%, Black = 65%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Lu, Shanglei"]
[Black "Xu, Yi"]
[Result "1-0"]
[ECO "B10"]
[WhiteElo "2640"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,61,0,-7,0,0,6,9,22,14,18,16,69,56,60,73,92,93,94,91,95,97,251,256,281,271,279,257,248,245,431,437,516,516,477,454,504,485,469,308,489,484,1308,1297,29984,29985]} 1. e4 c6 2. d3 d5 3. Nd2 e5 4. Ngf3 Bd6 5. b3 (5. d4 exd4 6. exd5 Nf6 7. Nc4 Bb4+ 8. Bd2 Bxd2+ 9. Qxd2 cxd5 10. Nce5 O-O 11. O-O-O Nc6 12. Nxc6 bxc6 13. Qxd4 Bg4 14. Bd3 {1-0 (38) Carlsen,M (2832)-So,W (2815) chess.com INT 2017}) 5... Nf6 6. Bb2 {B10: Caro-Kann: 2 d3 and 2 c4} Nbd7 7. g3 O-O 8. Bg2 Re8 9. O-O a5 10. a3 {LiveBook: 26 Games} b5 11. d4 {[%cal Bd3d4,Bd4d5][%mdl 32]} dxe4 $146 ({Predecessor:} 11... Bb7 12. exd5 cxd5 13. dxe5 Nxe5 14. Nxe5 Bxe5 15. Bxe5 Rxe5 16. Nf3 {1-0 (51) Nyvlt,Z (2406)-Rynkevich,S (2388) ICCF email 2009}) 12. Ng5 {[%cal Bf3g5,Bg5e4,Be4c3][%mdl 32]} Bc7 13. Ndxe4 Nxe4 14. Nxe4 f5 (14... exd4 $11 15. Bxd4 (15. Qxd4 $2 Be5 $19) 15... Ne5) 15. Nc3 $1 $14 e4 16. d5 Nf6 {[%cal Rf6d5]} 17. dxc6 Ba6 18. Qxd8 Raxd8 19. Rfd1 {Bf1 is the strong threat.} Be5 $2 (19... Re6 $16 {might work better.}) 20. Bf1 $18 Ra8 21. Ra2 Reb8 22. Nxb5 Bxb2 {[#]} 23. Nc7 $1 (23. Rxb2 $6 Rxb5 24. Bxb5 Bxb5 $16) 23... Bxf1 $2 (23... Be5 24. Nxa6 Rc8) 24. Nxa8 Rxa8 {[#]} ({Inferior is} 24... Be2 25. c7) 25. c7 $1 ({Worse is} 25. Rxf1 Bc3 $17) ({Not} 25. Rxb2 Be2 $16) 25... Re8 26. Rd8 Ba6 27. Rxb2 Kf7 28. b4 {[%cal Bb3b4,Bb4b5,Bb5a6][%mdl 32]} e3 (28... axb4 $142 29. Rxb4 e3) 29. fxe3 {Hoping for b5.} Rxe3 (29... axb4 $142 30. axb4 Bc8) 30. b5 Ng4 31. bxa6 {Precision: White = 87%, Black = 19%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Zhou, Jianchao"]
[Black "Wen, Yang"]
[Result "1/2-1/2"]
[ECO "A11"]
[WhiteElo "2616"]
[BlackElo "2585"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,72,26,27,30,22,29,26,31,23,28,30,47,2,35,19,41,33,40,48,50,35,33,0,20,17,0,0,23,19,29,8,9,4,3,3,5,-6,10,6,22,8,8,8,12,0,26,14,29,18,23,0,6,6,13,0,17]} 1. g3 Nf6 2. Bg2 d5 3. Nf3 g6 4. c4 c6 5. b3 Bg7 6. Bb2 Bg4 7. O-O O-O 8. d3 {[%cal Bd2d3,Bd3d4][%mdl 32]} Bxf3 9. Bxf3 e6 10. Qc2 {LiveBook: 10 Games. A11: English Opening: 1...c6} (10. Nd2 Ne8 11. d4 Nd6 12. e3 f5 13. a4 a5 14. Ba3 Na6 15. Be2 Re8 16. cxd5 exd5 17. Bxa6 Rxa6 {1-0 (42) Khismatullin,D (2628)-Rakhmanov,A (2654) Sochi 2017}) 10... a5 11. a3 Ne8 $146 ({Predecessor:} 11... Nbd7 12. Nd2 Ne8 13. Bxg7 Nxg7 14. Rfc1 Nf5 15. Qb2 Qf6 16. Qxf6 Nxf6 {1-0 (62) Dvirnyy,D (2549)-Lorenzo de la Riva,L (2449) Badalona 2013}) 12. d4 {White has an edge.} Nd6 13. Nd2 Nd7 14. e3 h5 15. b4 f5 16. bxa5 Rxa5 17. Bc3 Ra8 18. Bb4 Nf6 19. cxd5 cxd5 20. Qc5 Nfe8 21. Rfc1 Rf7 {[#] Strongly threatening ...Rc7.} 22. Qc2 h4 23. Be2 Bf6 24. Qd1 Rh7 25. Bd3 hxg3 26. hxg3 Nf7 27. Kg2 Be7 28. Qb3 Nf6 29. Rh1 (29. Nf3 {looks sharper.} Ne4 30. Bxe7 Qxe7 31. Qb4 Qd7 32. Rab1) 29... Rxh1 30. Rxh1 Kg7 31. Rb1 Ra7 32. a4 Bxb4 33. Qxb4 Qd6 34. Qb6 Rxa4 {[#] Hoping for ...Qxb6.The position is equal.} 35. Qxb7 {Threatens to win with Nf3.} Ra2 36. Rb2 Rxb2 {Precision: White = 61%, Black = 42%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Zeng, Chongsheng"]
[Black "Bai, Jinshi"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2542"]
[BlackElo "2586"]
[Annotator "TA"]
[PlyCount "176"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,176,21,0,0,0,-2,-2,0,-37,-32,-13,-5,-5,-4,-5,-5,0,0,-14,-5,-7,-10,-22,4,0,0,0,7,0,0,0,0,-15,0,-12,-12,-12,-9,-12,-13,-42,-1,-6,-1,-2,0,-6,0,0,0,0,0,-42,0,-79,-80,-71,-39,-72,-75,-75,-63,-77,-50,-80,-72,-69,-70,-72,-52,-80,-72,-94,-94,-94,-94,-138,-138,-138,-138,-149,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,-124,0,-124,-124,-124,-124,-124,-124,-124,-124,-124,0,-94,0,-94,-94,-94,-94,-94,-94,-94,-94,-94,-94,-94,-94,-94,-94,-94,-94,-128,-128,-128,-128,-128,-94,-128,0,-128,0,-135,-124,-127,-94,-94,-94,-94,0,-94,0,-94,0]} 1. d4 Nf6 {[%cal Bg8f6,Bf6d5,Bd5f4,Bf4e2][%mdl 32]} 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 O-O 5. e4 d5 6. exd5 Nxd5 7. c3 c5 {A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} 8. dxc5 h6 9. Bh4 $1 {LiveBook: 3 Games} Nf4 {The position is equal.} 10. Nb3 (10. Bg3 Qc7 11. Qa4 e5 12. Nb3 Nd7 13. Qa5 Qxa5 14. Nxa5 Nxc5 15. O-O-O {½-½ (102) Sambuev,B (2541)-Dominguez Perez,L (2739) chess.com INT 2017}) 10... Qc7 11. Bg3 Rd8 $146 ({Predecessor:} 11... e5 12. Qd6 Qc6 13. Qxc6 Nxc6 14. Bxf4 exf4 15. O-O-O {0-1 (56) Tischbierek,R (2380)-Volke,K Ilmenau 1981}) 12. Nfd4 Qe5+ 13. Qe2 $1 {[%cal Re2e5]} Qxd4 14. Nxd4 Nxe2 15. Bxe2 {Black must now prevent 0-0-0.} Bxd4 16. cxd4 Nc6 17. O-O Nxd4 18. Bd1 Be6 19. Re1 Nc6 20. a3 a5 21. Bf4 h5 22. h4 Rd4 23. Bg5 Rad8 24. Rc1 R8d7 25. g3 Ne5 {Black wants to play ...Nd3.} 26. Be2 Nd3 27. Bxd3 $1 Rxd3 28. b4 axb4 29. axb4 Rb3 30. Rb1 Rxb1 31. Rxb1 $11 {[%mdl 4096] Endgame KRB-KRB} Bf5 32. Rb2 Rd1+ 33. Kg2 f6 34. Bd2 Rb1 35. Ra2 (35. Rxb1 $11 {keeps the balance.} Bxb1 36. Kf3) 35... Be4+ $17 36. f3 Bd5 (36... Bc6 {is interesting.} 37. Ra3 Rb2 38. Rd3 Bb5 39. Rd4 Rb3) 37. Rc2 Kf7 38. Kf2 Rb3 39. Bc3 Bc6 40. Ke3 Ke6 41. Rc1 Kd5 42. Kd3 Ra3 43. Ra1 Bb5+ 44. Kc2 Rxa1 45. Bxa1 {KB-KB} Be2 46. Kd2 Bxf3 47. Ke3 Bg4 48. Bc3 Kc4 49. Be1 Bf5 50. Bd2 Bd7 51. Ke2 Bb5 52. Kf2 Bc6 53. Ke2 e5 54. Kf2 Kb3 55. Ke2 Bb5+ 56. Kf2 Bc4 57. Ke1 Ba6 58. Kf2 Bb5 59. Ke1 Kc4 60. Kf2 f5 61. Ke3 Bc6 62. Ke2 Bd5 63. Kf2 Bc6 64. Ke2 $1 Kb3 65. Kd1 Bb5 66. Ke1 Bc4 67. Kf2 Bd5 68. Ke2 Bc6 69. Kd1 $1 Kc4 70. Ke2 Kd4 71. Be3+ Ke4 72. Bg5 Bb5+ 73. Kf2 Kd3 74. Bf6 e4 75. Bg5 Kc3 76. Ke3 Bc6 77. Be7 Kxb4 78. Bf8 Kc4 79. Be7 Kd5 80. Bf8 Ke6 81. Kf4 Kd5 {...Kd4 is the strong threat.} 82. Ke3 $1 Kc4 83. Be7 $1 Kc3 84. Bd8 Kc2 85. Ba5 Kd1 86. Bc3 Kc2 87. Ba5 $1 Kd1 88. Bc3 $1 Kc2 {[%mdl 32768] Precision: White = 60%, Black = 64%. . Sensor Board Error (Ke4/e5)?} (88... Bd7 $17 89. Be5 Kc2) 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Fang, Yuxiang"]
[Black "Xu, Xiangyu"]
[Result "0-1"]
[ECO "A34"]
[WhiteElo "2502"]
[BlackElo "2574"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,56,34,37,30,22,0,30,25,47,79,52,0,0,0,0,0,0,0,0,0,0,-75,-77,-70,-70,-75,-37,-175,-168,-138,-151,-114,-52,-154,-51,-361,-362,-29984,-29985]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 e5 {[%cal Be7e5,Be5e4][%mdl 32]} 4. e3 Nf6 5. d4 e4 6. d5 {A34: Symmetrical English: 2 Nc3, lines with ...d5} exf3 7. dxc6 fxg2 8. cxd7+ Bxd7 9. Bxg2 g6 10. b3 Bg7 {LiveBook: 4 Games} 11. Bb2 O-O 12. Qd2 Qe7 $146 ({Predecessor:} 12... Qc7 13. O-O-O {½-½ (47) Grischuk,A (2783)-Vachier Lagrave,M (2804) Tbilisi 2017}) 13. O-O-O Bc6 14. Bxc6 $1 bxc6 15. Qe2 (15. Qd6 $14 Qxd6 16. Rxd6) 15... Rad8 16. Rxd8 Rxd8 17. Rd1 h5 18. Rxd8+ Qxd8 19. Na4 Qd6 20. h3 (20. f3 $11) 20... Ne4 $17 21. Bxg7 Kxg7 22. f3 Ng5 (22... Ng3 $5 {[%cal Rg3e2]} 23. Qh2 h4 $15) 23. Qg2 ({Better is} 23. h4 $15 Ne6 24. f4) 23... Qe5 $19 24. Kd2 Qf5 25. f4 Ne4+ ({Black should play} 25... Nxh3 $17 26. Kc3 h4) 26. Ke1 {[#]} (26. Kc1 $15) 26... h4 $1 $17 {White must now prevent ...Ng3.} 27. Qf3 $2 {[%mdl 8192]} (27. Qc2 $1 $15) 27... Ng3 $19 28. Qxc6 $2 (28. Nc3 $19) 28... Qc2 {Precision: White = 26%, Black = 68%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Liu, Yan"]
[Black "Wang, Chen"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2481"]
[BlackElo "2495"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,72,28,20,45,60,51,41,58,41,38,35,50,34,36,37,35,32,68,65,66,62,60,58,106,58,59,54,64,53,86,45,48,45,45,45,50,30,23,15,11,7,33,18,27,22,54,44,73,77,97,93,97,81,92,0,87,0,70,0,66]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Nbd7 5. Bf4 dxc4 6. e3 Bd6 7. Bxd6 cxd6 8. Bxc4 {LiveBook: 7 Games} d5 {D37: Queen's Gambit Declined: 5 Bf4} (8... Nb6 9. Bb3 Bd7 10. e4 Bc6 11. Qd3 Qe7 12. O-O O-O 13. d5 exd5 14. exd5 Bd7 15. Rfe1 Qd8 16. Nd4 {0-1 (41) Sarana,A (2562)-Sjugirov,S (2652) Taganrog 2018}) 9. Bd3 O-O 10. O-O b6 {White is slightly better.} 11. Qe2 $146 ({Predecessor:} 11. Qb3 Bb7 12. Rfc1 Qe7 13. a4 a6 14. Rc2 Rfc8 15. Rac1 Qd8 16. Nd2 {½-½ (16) Rezan,S (2430)-Petkov,V (2495) Mali Losinj 2017}) 11... Bb7 12. Rfc1 a6 13. Na4 Qb8 14. Rc2 Rc8 15. Rac1 g6 16. Rxc8+ Bxc8 17. Qc2 Bb7 18. Qc7 b5 19. Qxb8+ Rxb8 20. Nc5 Rc8 21. b4 Kf8 22. Rc2 Nxc5 23. bxc5 Nd7 24. Nd2 Nb8 25. Rb2 Nc6 26. a4 b4 27. Nb3 Rb8 28. f3 {[%cal Bf2f3,Bf3f4][%mdl 32]} Ke7 29. Kf2 f5 30. f4 Kf6 31. h4 Bc8 32. Rb1 h6 33. Rb2 Kg7 34. Rb1 Kf6 $1 35. Rb2 Kg7 $1 36. Rb1 Kf6 $1 {Precision: White = 51%, Black = 53%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Liu, Guanchu"]
[Black "Xu, Jun"]
[Result "1/2-1/2"]
[ECO "C44"]
[WhiteElo "2459"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 23,77,33,33,33,33,32,37,35,31,34,43,41,43,45,44,45,86,86,86,86,87,87,87,95,94,53,53,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 exd4 5. e5 Ne4 6. Qe2 f5 7. exf6 d5 8. Nxd4 {C44: Ponziani Opening and Scotch Gambit} (8. Nbd2 Qxf6 9. Nxe4 dxe4 10. Qxe4+ Qe6 11. Bd3 Bd7 12. O-O O-O-O 13. Nxd4 Nxd4 14. cxd4 Qxe4 15. Bxe4 Bb5 16. Rd1 {1-0 (33) Muzychuk,M (2491)-Zhao,X (2579) Cap d'Agde 2013}) 8... Nxd4 9. cxd4 Bb4+ 10. Bd2 Bxd2+ 11. Nxd2 O-O 12. Nxe4 Re8 $1 {[%cal Re8e4] LiveBook: 3 Games} 13. O-O-O Rxe4 14. Qf3 {aiming for Bd3.} Qxf6 $146 ({Predecessor:} 14... Bg4 15. f7+ Kf8 {½-½ (25) Ebeling,G (1413)-Neppert,P (1515) Willingen 2017}) 15. Qxf6 gxf6 16. Bd3 Re8 17. Kd2 Bg4 18. f3 Bh5 19. Rde1 Bg6 20. Bxg6 hxg6 {[#]} 21. Rxe8+ $1 Rxe8 22. Re1 Rxe1 23. Kxe1 $16 {[%mdl 4096] Endgame KP-KP} a5 24. h4 b6 25. g4 ({White should try} 25. Kd2 $1 $14) 25... c5 $11 {The position is equal.} 26. b3 f5 (26... cxd4 $2 27. Ke2 $18) 27. Kd2 fxg4 28. fxg4 Kf7 29. Kc3 Ke6 30. Kd3 Kf6 31. Ke3 Kf7 32. Kf4 Kf6 (32... cxd4 $2 33. Kf3 $18) 33. a4 Ke6 $1 (33... cxd4 34. Kf3 $18) 34. h5 gxh5 35. gxh5 {[#] Hoping for Kg5.} Kf6 $1 36. Kg4 Kg7 $1 {[%cal Rg7h6]} ({But not} 36... cxd4 $2 37. Kf3 $18) 37. Kf4 $1 {[%cal Rf4e5] Threatens to win with Ke5.} Kf6 (37... cxd4 $2 38. Kf3 $18) (37... Kh6 $5 38. Ke5 $8 c4 39. bxc4 dxc4 $11) 38. Kg4 {And now Kf4 would win.} Kg7 $1 {[%cal Rg7h6] White must now prevent ...Kh6.} ({Don't blunder} 38... cxd4 $2 39. Kf3 $18) 39. Kf4 $1 {Precision: White = 87%, Black = 96%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Guo, Qi"]
[Black "Wang, Yu A"]
[Result "1-0"]
[ECO "A88"]
[WhiteElo "2381"]
[BlackElo "2337"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,97,15,0,25,0,0,0,0,0,25,18,25,18,20,30,31,9,10,24,6,17,51,0,10,0,0,0,0,0,8,0,0,0,10,6,81,85,77,14,28,25,20,12,76,76,118,103,164,164,172,174,241,152,393,381,408,327,408,181,401,394,372,351,785,973,470,470,1042,1235,5281,3984,5614,5478,4602,3469,1815,1712]} 1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7 5. Nf3 O-O 6. O-O d6 7. Nc3 c6 8. d5 e5 9. dxe6 Bxe6 10. Qd3 Nbd7 11. Bf4 {A88: Dutch Defence: Leningrad System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 c6} Nb6 (11... d5 12. Ng5 dxc4 13. Qd6 Bf7 14. Ne6 Bxe6 15. Qxe6+ Kh8 16. Qxc4 Re8 17. Rad1 Qa5 18. b4 Qb6 {1-0 (35) Harikrishna,P (2727)-Mamedyarov,S (2765) Beijing 2014}) 12. b3 {LiveBook: 6 Games} ({Don't play} 12. Bxd6 Bxc4 13. Qd1 Re8 $17) 12... Ne4 13. Nxe4 $146 {White has an edge.} ({Find the theoretical novelty and annotate with similar games:} 13. Nd4 Nxc3 14. Nxe6 Qe7 15. Bd2 Qxe6 16. Bxc3 Bxc3 17. Qxc3 Qe5 18. Qb4 Qc5 {½-½ (46) Walczak,P (2469)-Tauber,H (2439) ICCF email 2009}) 13... fxe4 14. Qxe4 Bf5 15. Qe3 Bxa1 16. Rxa1 Qf6 17. Rd1 d5 18. Be5 Qe7 19. Qc1 dxc4 $1 20. Bb2 Rad8 21. Re1 Be4 22. bxc4 (22. Ng5 $14 Bxg2 23. Qc3) 22... Qb4 23. Ba3 $36 {[%mdl 2048] Black is under pressure.} Qxc4 24. Bxf8 Qxc1 $1 25. Rxc1 {[#] Strongly threatening Bc5.} Rxf8 26. Nd4 Bxg2 27. Kxg2 $11 {[%mdl 4096] Endgame KRN-KRN} Rd8 28. Nb3 Kf7 (28... Re8 $11 {keeps the balance.}) 29. Nc5 $16 Rd2 30. e4 ({White should play} 30. Kf3 $16) 30... Nd7 $11 {Threatens to win with ...Nxc5.} 31. Nxb7 Ne5 32. Rc3 Rxa2 (32... Ng4 $11 {remains equal.}) 33. Nd8+ $16 Kf6 34. Nxc6 Nxc6 (34... a5 $16) 35. Rxc6+ {KR-KR} Ke5 36. Rc7 Kxe4 (36... h5 $142) 37. Rxh7 $18 a5 $2 (37... Ke5 $16 {was called for.} 38. Kf3 Kf5) 38. h4 a4 39. Rf7 Ke5 40. g4 (40. Ra7 $142 Ra1 41. Ra6) 40... Rb2 $2 (40... a3 {is a better defense.} 41. Ra7 Ra1) 41. Ra7 Rb4 {[#]} 42. Kg3 $1 Rb3+ $2 (42... Ke6 43. h5 gxh5) 43. f3 {White is clearly winning.} a3 44. Ra6 Kd4 (44... Rb7 $142 45. Rxa3 Kf6) 45. Rxg6 Ke3 46. h5 Ke2 47. Rf6 Rb1 48. Re6+ Kd2 49. Ra6 {Precision: White = 53%, Black = 24%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Wang, Jue"]
[Black "Huang, Qian"]
[Result "*"]
[ECO "B97"]
[WhiteElo "2365"]
[BlackElo "2440"]
[Annotator "TA"]
[PlyCount "108"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,108,40,39,45,53,36,47,43,61,74,119,61,82,73,65,52,56,52,54,54,54,0,39,0,48,55,59,55,101,100,107,92,100,92,92,92,102,92,92,92,92,54,54,54,54,54,54,47,52,47,48,48,48,45,45,20,21,8,44,39,98,98,98,98,99,99,101,101,104,90,97,90,91,90,90,90,90,90,90,90,90,90,90,90,94]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Nc6 9. Bxf6 {B97: Sicilian Najdorf: Poisoned Pawn} (9. O-O-O Qxd4 10. Qxd4 Nxd4 11. Rxd4 Be7 12. Na4 Nd7 13. Bxe7 Kxe7 14. Be2 b5 15. Nc3 Rb8 16. Rhd1 Rb6 17. a4 bxa4 18. Nxa4 Rc6 19. Nc3 {½-½ (31) Svidler,P (2740)-Bu,X (2695) Ningbo 2015}) 9... gxf6 10. Nb3 h5 11. Be2 h4 12. Rf1 Bd7 13. O-O-O O-O-O {LiveBook: 11 Games} 14. Kb1 Be7 {[#]} 15. Qd3 $146 ({Predecessor:} 15. Rf3 Kb8 16. a3 Na7 {½-½ (65) Groszpeter,A (2541)-Ilincic,Z (2464) Kecskemet 2010}) 15... Kb8 16. Qh3 Rc8 17. Bg4 Qd8 {[#]} 18. a3 (18. f5 $1 $16) 18... Rc7 19. Rd3 Qg8 20. Qf3 Qg7 21. Bh3 Na7 22. Nd4 Nc6 23. Nb3 Na7 $1 24. Nd4 Nc6 25. Nxc6+ Bxc6 26. f5 e5 27. Bg4 Rhc8 28. Rf2 {[%cal Bf1f2,Bf2d2,Bd2d1,Bd1e1][%mdl 32]} Qg5 29. h3 Bf8 30. Rfd2 Rd7 31. Nd5 Bxd5 32. Rxd5 ({But not} 32. exd5 Bh6 $15) 32... Rc6 33. Qd3 Bh6 34. Rd1 Qe3 35. c3 Qxd3+ 36. R5xd3 Kc7 37. Re1 Kd8 38. Bd1 Ke7 39. Bb3 Bf4 40. Bd5 Rc8 41. b4 Rg8 42. Re2 Rg3 (42... b6 $14) 43. Rxg3 $16 {White is better.} Bxg3 {[%mdl 4096] Endgame KRB-KRB} 44. Kc2 Kd8 45. Kd3 Kc7 46. a4 Kb8 47. a5 Ka7 48. Rb2 b6 49. axb6+ Kxb6 50. Ra2 Ra7 51. Ra5 Be1 52. Bc4 Bg3 53. Bb3 Be1 54. Rd5 Kc7 {Precision: White = 58%, Black = 64%.} *

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Zhai, Mo"]
[Black "Liu, Manli"]
[Result "1-0"]
[ECO "D58"]
[WhiteElo "2310"]
[BlackElo "2183"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,65,2,13,60,64,77,47,60,70,100,57,62,72,72,61,115,35,120,121,156,157,169,161,156,160,173,147,195,185,197,179,261,254,247,225,418,398,539,538,724,716,1001,971,1119,1113]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Bg5 Be7 5. Nc3 O-O 6. e3 h6 7. Bh4 b6 8. Be2 dxc4 9. Bxc4 Bb7 10. O-O Ne4 11. Bxe7 Qxe7 {D58: Queen's Gambit Declined: Tartakower Defence} 12. Rc1 {LiveBook: 9 Games} a6 13. Nxe4 Bxe4 {White is slightly better.} 14. Be2 (14. Bd3 $5 {[%cal Rd3e4]} Bd5 15. Ne5 $14) 14... Rc8 15. Ne5 Ra7 {[#]} 16. Qb3 $146 ({Predecessor:} 16. Bh5 g6 17. Bf3 Bxf3 18. Qxf3 c5 19. dxc5 {½-½ (28) Morovic Fernandez,I (2613)-Bruzon Batista,L (2488) Havana 1999}) 16... Qd6 17. Qa4 a5 18. a3 c6 (18... Bd5 $14) 19. Rc3 ({White should try} 19. f3 $16 Bh7 20. Rfd1) 19... f6 {[#]} (19... Nd7 $14) 20. Nc4 $1 $16 {[%cal Rc4d6]} Qd8 {[#] Threatens to win with ...b5.} 21. Qb3 $1 b5 {[#] Hoping for ...a4.} 22. Nb6 $1 {[%mdl 512]} Bd5 (22... Qxb6 23. Qxe6+) 23. Nxd5 (23. Nxc8 Bxb3 24. Nxa7 Bc4 $15) 23... exd5 24. e4 {Strongly threatening exd5.} Rcc7 25. Bf3 Kh8 26. exd5 cxd5 (26... a4 $142 27. Qa2 cxd5) 27. Rxc7 $18 ({Don't do} 27. Qxd5 $6 Qxd5 28. Bxd5 Rxc3 $16) (27. Bxd5 $6 b4 $18) 27... Rxc7 28. Qxb5 ({Don't take} 28. Bxd5 $6 Rd7 $16) 28... Rc4 $2 (28... Nc6 {was necessary.} 29. Bxd5 (29. Qxd5 Qxd5 30. Bxd5 Nxd4 $16) 29... Nxd4 30. Qxa5 Ne2+ 31. Kh1 Qc8) 29. Re1 Kh7 30. g3 {White is clearly winning.} Qc7 31. Bxd5 {Qe8 would kill now.} Rxd4 32. Be4+ g6 33. Qe8 {Precision: White = 72%, Black = 17%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Li, Xueyi"]
[Black "Zhu, Jiner"]
[Result "0-1"]
[ECO "E62"]
[WhiteElo "2275"]
[BlackElo "2313"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,76,0,-6,0,-8,0,-71,-55,-168,-162,-178,-175,-178,-156,-162,-162,-168,-129,-132,-114,-114,-114,-118,-115,-175,-144,-157,-156,-150,-155,-164,-172,-166,-136,-150,-139,-156,-137,-164,-154,-182,-191,-156,-170,-207,-212,-400,-348,-397,-360,-476,-491,-476,-464,-589,-562,-503,-477]} 1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d6 5. Nc3 O-O 6. Nf3 Nc6 7. O-O Bf5 8. b3 e5 9. dxe5 {E62: King's Indian: Fianchetto: 6...c6 and Panno Variation (6...Nc6) without ...a6} (9. d5 Ne7 10. Nd2 e4 11. Bb2 e3 12. fxe3 Ng4 13. Rf3 Ne5 14. Rf1 Ng4 15. Rf3 Bd7 16. Kh1 Nf5 {0-1 (48) Halkias,S (2585)-Fressinet,L (2672) Doha 2016}) 9... dxe5 10. Ba3 Re8 11. Nh4 {LiveBook: 6 Games. The position is equal.} Bg4 12. h3 Bd7 13. Nd5 $146 (13. Qd2 $11 {keeps the balance.}) ({Find the theoretical novelty and annotate with similar games:} 13. Qd2 Qc8 14. Kh2 {½-½ (14) Kohlman,R (2300)-Blazek,M Trencin 1995}) 13... e4 $17 14. f4 ({Better is} 14. Qd2 $15) 14... Nh5 $19 15. Kh2 Nd4 ({Don't do} 15... Bxa1 16. Qxa1 Be6 17. Rd1 $15) 16. Bb2 {[#]} Nxg3 $1 {[%mdl 512]} 17. Kxg3 {[#]} Qxh4+ $1 18. Kh2 (18. Kxh4 {gets mated.} Nf5+ 19. Kg5 h6+ 20. Kg4 h5+ 21. Kg5 Bh6+ 22. Kf6 Re6#) 18... Nf5 19. Bxg7 Qg3+ 20. Kg1 Kxg7 21. Qe1 Rac8 22. Rd1 (22. Qxg3 $17 Nxg3 23. Rfd1) 22... Bc6 23. Qxg3 Nxg3 24. Rfe1 Bxd5 25. cxd5 Rcd8 26. e3 Rd6 27. Rd4 f5 28. Kf2 Nh5 29. Rc1 c6 30. Rb4 Re7 ({Resist} 30... cxd5 31. Rxb7+ Kh6 32. Rcc7 $17) 31. dxc6 bxc6 {aiming for ...Rd2+.} 32. Rc2 Red7 {...Rd2+ is the strong threat.} 33. Ke2 $2 (33. Re2) 33... Nf6 34. Rbc4 Rd3 35. Bf1 Nd5 {Black is clearly winning.} 36. Kf2 Rxe3 37. Rd4 Rf3+ 38. Ke1 {[#]} Rxf1+ $1 {Precision: White = 55%, Black = 86%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Ren, Xiaoyi"]
[Black "Ni, Shiqun"]
[Result "0-1"]
[ECO "D79"]
[WhiteElo "2263"]
[BlackElo "2444"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,64,6,0,-4,-17,-14,-8,-10,-43,-53,-88,-87,-88,-85,-89,-95,-87,-91,-78,-93,-122,-121,-127,-127,-128,-131,-131,-124,-138,-125,-124,-110,-153,-145,-208,-223,-409,-389,-389,-391,-343,-315,-29991,-29992]} 1. d4 Nf6 2. c4 g6 3. g3 c6 4. Bg2 d5 5. cxd5 cxd5 6. Nf3 Bg7 7. Nc3 O-O 8. Ne5 Bf5 9. O-O Ne4 10. Qb3 Nc6 {D79: Fianchetto Grünfeld: Symmetrical Variation (6 0-0 c6 7 cxd5 cxd5)} 11. Nxc6 bxc6 12. Nxe4 {LiveBook: 11 Games} dxe4 {The position is equal.} (12... Bxe4 13. Be3 Bxg2 14. Kxg2 c5 15. Rad1 c4 16. Qa3 Qd7 17. b3 Rfc8 18. Rc1 c3 19. Rfd1 Rc6 20. Rc2 Rac8 {½-½ (49) Ma,Q (2637)-Wei,Y (2727) China 2017}) 13. e3 Qd5 $146 ({Predecessor:} 13... Qd7 14. Qc2 Qe6 15. Bd2 Rab8 16. b4 g5 17. Rfc1 Rfc8 18. a4 {1-0 (44) Zimmermann,G-Bannasch,T Eppingen 1988}) 14. Qxd5 cxd5 15. Bd2 e5 16. Bc3 exd4 17. Bxd4 Bxd4 18. exd4 Rab8 19. b3 Rb4 20. Rfd1 Rc8 21. Rd2 Rc3 22. Bf1 a5 23. Be2 Bh3 24. Bf1 Bg4 25. Re1 Bd7 26. Kg2 g5 27. Be2 f5 {[%cal Bf7f5,Bf5f4,Bf4f3][%mdl 32]} 28. h3 (28. f3 $17) 28... f4 $19 29. Bg4 $2 {[#]} (29. Bf1 {keeps fighting.}) 29... Bxg4 30. hxg4 f3+ 31. Kf1 Rb6 32. Red1 $2 {[#]} (32. Rdd1 $19) 32... Rh6 {Precision: White = 42%, Black = 91%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.19"]
[Round "2"]
[White "Ning, Kaiyu"]
[Black "Gu, Tianlu"]
[Result "1-0"]
[ECO "D46"]
[WhiteElo "2176"]
[BlackElo "2171"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 27,89,10,12,20,21,20,47,45,90,80,81,89,86,65,72,72,110,105,130,77,145,129,147,147,173,126,127,135,182,208,192,207,208,207,200,204,216,211,231,208,238,217,354,202,352,341,362,356,438,435,422,402,402,253,515,507,1530,1530,1530,1530,1508,1501,1468,1381]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 c6 5. e3 Nbd7 6. Bd3 Bd6 7. O-O O-O 8. Qc2 e5 9. cxd5 cxd5 10. Nb5 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} (10. e4 exd4 11. Nxd5 Nxd5 12. exd5 h6 13. Nxd4 Qh4 14. Nf3 Qh5 15. Bh7+ Kh8 16. Qf5 Qxf5 17. Bxf5 Nf6 18. Bd3 Bg4 19. Rd1 Rac8 20. h3 Bxf3 21. gxf3 {½-½ (32) Wang,H (2690)-Ding,L (2759) China 2017}) 10... Bb8 11. dxe5 Nxe5 12. Nxe5 Bxe5 13. Bd2 a6 14. Bc3 Bxc3 {LiveBook: 6 Games} 15. Nxc3 d4 16. Ne4 {[#]} Nxe4 $146 ({Predecessor:} 16... g6 17. exd4 Qxd4 {½-½ (45) Vaibhav,S (2552)-Hovhannisyan,R (2624) Al Ain 2015}) 17. Bxe4 f5 18. Qb3+ Kh8 {[#]} 19. Bf3 $1 ({Don't go for} 19. Bxb7 $2 Rb8 $19) 19... dxe3 20. Qxe3 Qf6 21. b3 f4 22. Qc5 Rf7 23. Rad1 (23. Rfe1 $142 {White wants to mate with Re8+.} Bf5 24. Qb4) 23... Bf5 (23... b6 $142 24. Qa3 Bb7) 24. Rfe1 $16 Rc8 25. Qb4 g5 26. h3 Kg7 27. Bh5 Bg6 {[#]} 28. Rd6 $1 {[%cal Rd6f6]} Qc3 29. Qxc3+ Rxc3 30. Bxg6 hxg6 $18 {[%mdl 4096] Endgame KRR-KRR} 31. Ree6 Rc1+ 32. Kh2 Rc2 33. Rxg6+ Kf8 34. f3 ({Less strong is} 34. Rxg5 Rxf2 35. Rgg6 Rxa2 $14) 34... Rc5 (34... Rxa2 {is a better defense.} 35. Rxg5 Rb2) 35. Rd8+ Ke7 36. Rdg8 Rc2 37. Rb8 (37. Rxg5 Rxa2 38. R5g6 Kd7 $18) 37... Rxa2 38. Rxb7+ Kf8 39. Rb8+ Ke7 40. Rbb6 Rb2 $2 (40... Rf5 41. Rg7+ (41. Rxa6 Rxa6 42. Rxa6 Rb5 $18) 41... Kf8) 41. Rxg5 {White is clearly winning.} Rf6 (41... Rh7 $142 42. Rxa6 Rf7) 42. Rg7+ Kf8 43. Rxf6+ Kxg7 44. Rxa6 Rxb3 45. Ra4 {Precision: White = 93%, Black = 29%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.20"]
[Round "3"]
[White "Bai, Jinshi"]
[Black "Lu, Shanglei"]
[Result "1/2-1/2"]
[ECO "E06"]
[WhiteElo "2586"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,117,20,22,22,12,14,12,26,9,11,14,18,14,10,12,18,18,18,10,17,12,23,16,26,26,27,16,26,26,24,2,2,2,7,0,19,0,0,0,0,0,35,36,40,41,81,76,111,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. g3 Be7 5. Bg2 O-O 6. Nc3 dxc4 7. Ne5 c5 8. dxc5 Qxd1+ 9. Nxd1 {E06: Closed Catalan: Early deviations} Nbd7 (9... Bxc5 10. Nc3 Nc6 11. Nxc4 Bd7 12. O-O Rfd8 13. Rd1 Be8 14. Bf4 Rac8 15. Nd6 Bxd6 16. Bxd6 Na5 17. Bb4 Nc6 18. Ba3 Na5 19. Rxd8 Rxd8 20. b3 Bc6 {1-0 (54) Wang,Y (2690)-Kryvoruchko,Y (2689) Riadh 2017}) 10. Nxc4 Nxc5 11. Nc3 {LiveBook: 5 Games} Bd7 12. O-O Rac8 13. Ne5 Rfd8 14. Rd1 $146 ({Predecessor:} 14. Be3 b6 15. Rad1 Be8 16. Rxd8 Bxd8 {0-1 (91) Hartikainen,M (2341)-Kiuttu,R (2324) Finland 2013}) 14... Be8 15. Rxd8 Rxd8 16. Be3 b6 17. h3 Na4 18. Nxa4 Bxa4 19. Rc1 Bd6 20. Nc6 Bxc6 21. Bxc6 Nd5 22. Bxd5 exd5 $11 {[%mdl 4096] Endgame KRB-KRB} 23. Bd4 h5 24. Kg2 f6 25. g4 hxg4 26. hxg4 Kf7 27. e3 g5 28. a4 Ke6 29. a5 bxa5 30. Rc6 Rd7 31. Ra6 Kf7 32. f4 gxf4 33. exf4 f5 {[#]} 34. Kf3 ({Of course not} 34. Rxa5 $6 fxg4 35. Kg3 Ke6 $11) ({White must play} 34. g5 $1 $16) 34... fxg4+ {The position is equal.} 35. Kxg4 Be7 36. Kf5 Bd8 37. Rh6 a4 38. Rh7+ Ke8 39. Rh8+ Kf7 40. Rh7+ Ke8 41. Rh8+ Kf7 42. Bc5 d4 {[#] White must now prevent ...Kg7.} 43. Rh7+ Ke8 44. Rh8+ Kf7 45. Rh7+ Ke8 46. Rxd7 Kxd7 {KB-KB} 47. Ke4 a5 48. f5 Ke8 49. Kd3 Kf7 50. Kc4 Kf6 51. Bxd4+ Kxf5 52. Kb5 Ke4 53. Bc3 Kd3 {aiming for ...a3!} 54. Kxa4 Kc2 55. Bd4 Bg5 56. Kxa5 Bc1 57. b4 {Threatens to win with b5.} Bd2 58. Kb5 Bxb4 59. Kxb4 {Precision: White = 67%, Black = 76%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.20"]
[Round "3"]
[White "Wen, Yang"]
[Black "Liu, Yan"]
[Result "1/2-1/2"]
[ECO "B91"]
[WhiteElo "2585"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,123,57,62,64,64,64,60,58,42,70,75,79,76,76,76,79,81,88,88,88,89,93,87,97,97,91,82,91,87,97,103,125,105,124,124,124,124,124,124,124,124,123,124,193,124,124,124,124,124,97,88,103,111,95,96,131,125,185,129,136,138,157,8,8,8,8,8,8,8,8,0,0,0,8,0,5591,4616,29964,29964,29964,29965,29964,8,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3 e5 7. Nde2 {[%cal Bd4e2,Be2c3,Bc3d5][%mdl 32]} Nbd7 8. a4 {B91: Sicilian Najdorf: 6 g3} b6 (8... Be7 9. Bg2 b6 10. Nd5 Bb7 11. Nxe7 Qxe7 12. Nc3 Rc8 13. O-O O-O 14. Re1 Qe6 15. Qd2 Rfd8 16. b3 Nc5 17. Bb2 {½-½ (26) Bartel,M (2640)-Navara,D (2744) Lublin 2016}) 9. Nd5 Bb7 10. Nec3 {LiveBook: 4 Games. White is slightly better.} Nxd5 $146 ({Predecessor:} 10... Be7 11. Bc4 O-O 12. O-O Nxd5 13. Bxd5 Bxd5 14. Nxd5 Nf6 15. Nxf6+ Bxf6 {1-0 (51) Alekseev,E (2642)-Krupenski,J (2406) Stockholm 2015}) 11. Nxd5 Be7 12. Bc4 Nf6 13. Be3 Nxd5 14. Bxd5 Rb8 15. Bxb7 Rxb7 16. Qd3 b5 17. axb5 Rxb5 18. b3 Qc8 19. O-O O-O 20. Ra4 Qb7 21. Rfa1 Ra8 22. Ra5 Rxa5 23. Rxa5 Bd8 24. Ra4 Bc7 25. Rc4 h5 26. Qd5 Qxd5 27. exd5 $16 {[%mdl 4096] Endgame KRB-KRB} Bd8 28. Rc6 Be7 29. Bc1 a5 30. Ba3 $1 a4 (30... Kf8 $16 31. Kg2 (31. Bxd6 Bxd6 32. Rxd6 Rc8 $16) 31... Ke8) 31. bxa4 (31. b4 $1 $18) 31... Rxa4 32. Bxd6 Bxd6 33. Rxd6 $18 {KR-KR} Kf8 34. Rc6 Rd4 35. c4 Ke7 36. h4 Kd7 37. Kf1 f6 (37... Rd3 $16 38. Ra6 Ke7) 38. Ke2 ({White should try} 38. Ke1 $18) 38... g5 $16 39. hxg5 fxg5 40. Re6 (40. Kf1 $16) 40... h4 $1 $11 41. gxh4 (41. Rxe5 h3) 41... gxh4 42. Rxe5 {aiming for c5.} Rxc4 43. Ke3 Kd6 44. f4 {[%cal Bf2f4,Bf4f5][%mdl 32]} h3 45. Rh5 h2 46. Kf3 Rc1 $2 {[%mdl 8192]} (46... Rc3+ $11 47. Ke4 Rc4+ 48. Ke3 Rc2) 47. Rxh2 $18 Kxd5 {[#]} 48. Re2 $1 Rc8 {[#]} 49. f5 $1 Rc4 50. Kg3 $2 (50. Re8 {mates} Rh4 51. Kg3 Rh1 52. Kf4 Kd6 53. f6 Rf1+ 54. Kg5 Kd7 55. Re7+ Kd6 56. Re2) 50... Kd6 $1 $11 {The position is equal.} 51. f6 Kd7 $1 52. Re7+ Kd8 $1 53. Re5 {White threatens f7 and mate.} Kd7 $1 54. Kf3 Rc6 55. Rf5 {And now f7 would win.} Ke8 56. Kg4 Kf7 57. Kg5 Rc1 58. Ra5 Rg1+ 59. Kf5 Rf1+ 60. Kg5 Rg1+ 61. Kf5 Rf1+ 62. Ke4 {Precision: White = 71%, Black = 73%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.20"]
[Round "3"]
[White "Xu, Xiangyu"]
[Black "Liu, Guanchu"]
[Result "1/2-1/2"]
[ECO "A46"]
[WhiteElo "2574"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,71,31,29,17,33,42,39,31,22,20,33,18,65,63,90,67,61,49,64,66,63,68,65,64,52,32,16,28,24,18,35,20,32,7,10,9,29,10,22,12,25,8,32,12,31,8,10,10,44,8,12,11,115,6,16,6,12,-14,0,-72,0,-46]} 1. d4 Nf6 2. g3 e6 3. Bg2 c5 4. Nf3 b5 (4... cxd4 5. Nxd4 d5 6. O-O e5 7. Nb3 Be6 8. Bg5 Nbd7 9. e4 dxe4 10. Bxe4 Qc7 11. Bg2 Be7 12. Nc3 O-O 13. Re1 Rad8 14. Qe2 h6 15. Bxf6 Bxf6 {½-½ (107) Caruana,F (2802)-Nakamura,H (2786) chess.com INT 2017}) 5. e4 Bb7 6. e5 {A46: 1 d4 Nf6 2 Nf3 e6: Torre, London and Colle Systems} Nd5 {LiveBook: 3 Games} 7. a4 $146 ({Predecessor:} 7. O-O Qc7 8. Qe2 cxd4 9. Nxd4 a6 10. Rd1 Nc6 11. Nf3 Be7 12. Rxd5 exd5 {½-½ (72) Gabuzyan,H (2585)-Ghaem Maghami,E (2574) Sareyn 2017}) 7... a6 8. O-O {White is slightly better.} Nc6 9. Nc3 Nxc3 10. bxc3 Be7 11. dxc5 O-O 12. Qd3 Qb8 13. axb5 axb5 14. Bf4 Qc8 15. Rfd1 Rxa1 16. Rxa1 b4 17. Rb1 bxc3 18. Ng5 (18. Be3 {seems wilder.} Ba8 19. Qxc3 Qc7 20. Ra1 Bb7 21. Ra3) 18... Bxg5 $1 19. Bxg5 Ba8 20. Qxc3 h6 21. Bd2 Ne7 22. Bxa8 Qxa8 23. Qd3 Nc6 24. Bc3 Qa7 25. Rb6 Ra8 26. Kg2 Ne7 27. Qb5 Nc6 28. h4 Qa4 29. Qd3 {White wants to play Rb7.} Ne7 30. Bd4 Nd5 31. Rd6 Rb8 (31... Nb4 $11 32. Qf3 Nxc2) 32. c6 (32. f3 $16) 32... dxc6 $11 33. c4 Ne7 34. Bc3 {Black must now prevent Rd8+.} Qa3 35. Kh2 {[#]} (35. h5 $11 {keeps the balance.}) 35... h5 (35... Nf5 $1 $17 {[%cal Rf5d6]} 36. Rd8+ (36. Rxc6 Qc1 $15) 36... Rxd8 37. Qxd8+ Kh7) 36. Bd2 {Precision: White = 29%, Black = 43%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.20"]
[Round "3"]
[White "Xu, Yi"]
[Black "Zhou, Jianchao"]
[Result "1/2-1/2"]
[ECO "C54"]
[WhiteElo "2522"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,66,0,9,8,11,8,20,16,12,0,0,-17,-17,-17,-17,-17,-17,-17,-17,-14,10,0,0,0,0,-6,0,0,0,0,0,0,12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. O-O d6 5. c3 Nf6 6. d3 O-O 7. a4 a5 8. Na3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3} h6 (8... Be6 9. Bxe6 fxe6 10. Nc2 Qe8 11. Be3 Bxe3 12. Nxe3 Rd8 13. Qe2 d5 14. Rfe1 Qg6 15. Nf1 Nh5 {½-½ (38) Anand,V (2782)-Ding,L (2777) Riadh 2017}) 9. Nc2 Re8 {LiveBook: 3 Games. The position is equal.} 10. Be3 Bxe3 11. Nxe3 Be6 12. Bxe6 $146 ({Find the theoretical novelty and annotate with similar games:} 12. Re1 Bxc4 13. Nxc4 d5 14. Ncd2 dxe4 15. dxe4 {1-0 (64) Kosteniuk,A (2552)-Muzychuk,A (2576) Monaco 2017}) 12... Rxe6 13. Nd5 Re8 14. Re1 Nxd5 15. exd5 Ne7 16. d4 Nxd5 17. dxe5 dxe5 18. Nxe5 Nf6 (18... Nb6 {NOTEXT} 19. Qb3 Re7 20. Nf3 Rxe1+ 21. Rxe1 Qd7) 19. Qb3 Qd5 20. Qxd5 Nxd5 21. Nc4 b6 22. g3 Kf8 23. Kg2 Rxe1 24. Rxe1 $11 {[%mdl 4096] Endgame KRN-KRN} Re8 25. Rd1 Nf6 26. Ne3 g6 27. Kf3 Re5 28. Rd4 Ke7 29. h3 Ke6 30. Rd8 Ke7 31. Rd4 Ke6 32. Rd8 Ke7 33. Rd4 Ke6 {Precision: White = 64%, Black = 71%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.20"]
[Round "3"]
[White "Xu, Jun"]
[Black "Zeng, Chongsheng"]
[Result "1-0"]
[ECO "D31"]
[WhiteElo "2501"]
[BlackElo "2542"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,77,27,23,35,52,54,90,70,97,83,95,87,97,101,91,89,86,90,102,92,117,88,91,89,102,87,102,85,72,70,91,26,99,90,107,-62,123,130,157,166,147,147,240,233,281,263,246,220,750,681,694,470,447,330,336,319,609,606,1120,1108,1214,1169,1162,1143,2156,2095,29982,29983,29989,29990]} 1. d4 d5 2. c4 e6 3. Nc3 Bb4 4. Nf3 dxc4 5. a3 (5. Qa4+ Nc6 6. a3 Bxc3+ 7. bxc3 Qd5 8. Nd2 b5 9. Qc2 Bb7 10. e4 Qd7 11. a4 a6 12. Rb1 Na5 {½-½ (21) Dreev,A (2653)-Grischuk,A (2772) Riadh 2017}) 5... Bxc3+ 6. bxc3 {D31: Queen's Gambit Declined: Semi-Slav without ...Nf6 (+ Marshall Gambit and Noteboom) and Exchange Variation lines without ...Nf6} a6 7. a4 $146 ({Predecessor:} 7. e3 b5 8. Ne5 Bb7 9. Qg4 g6 10. a4 Nd7 11. Qg3 Ne7 12. Ba3 Nf5 {0-1 (21) Vidal Melendez,I (2291)-Bruzon Batista,L (2618) Paramaribo 2016}) 7... c5 8. e3 {White is better.} ({Of course not} 8. dxc5 $6 Qxd1+ 9. Kxd1 Nd7 $11) 8... Nc6 9. Bxc4 Qa5 10. Bb2 cxd4 11. exd4 Nf6 12. O-O O-O 13. Re1 Rd8 14. Bf1 Ne7 15. c4 Ng6 16. Qb3 Bd7 17. d5 exd5 18. Bxf6 gxf6 19. cxd5 Bg4 20. Nd4 ({White should try} 20. Re4 $16 Bf5 21. Rd4) 20... Rd7 (20... Kg7 $1 $11) 21. Bc4 $16 Rc8 22. Nc2 $2 (22. h3 $16 Qc5 23. Nc6) 22... Ne5 $2 {[#]} (22... Rdc7 $1 $15 {stays ahead.} 23. Bd3 Rc3 24. Qxb7 Rxd3) 23. Ne3 $1 Rxc4 24. Nxc4 Qxd5 25. h3 Bf3 (25... b5 $16) 26. Re3 $18 {Black must now prevent Nxe5.} Bd1 27. Rg3+ Ng6 28. Qc3 Qe6 $2 (28... Qc6 29. a5 Be2) 29. Ne3 Bh5 30. Qc5 Be2 31. Nf5 {[#] Qc8+ would kill now.} h5 32. Rc1 Bd3 $2 (32... Kh7 33. Re3 Qd5 34. Qxd5 (34. Rxe2 Nf4 $11) 34... Rxd5 35. Rxe2 Rxf5) 33. Nd4 Rxd4 34. Qxd4 Bf5 35. Re3 Ne5 36. Rc7 b5 37. f4 Nc6 38. Qc5 Be4 39. Rg3+ {Precision: White = 72%, Black = 25%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.20"]
[Round "3"]
[White "Wang, Chen"]
[Black "Fang, Yuxiang"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2495"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,82,-18,-22,-61,-50,-51,-48,-42,-39,-43,-33,-53,-34,-42,-19,-42,0,-25,-17,-19,-14,-41,0,-36,-31,-26,-23,-52,-8,-23,0,-2,0,0,10,0,35,32,18,0,0,-18,0,-61,-89,-242,-250,-254,-235,-201,-205,-416,-300,-339,-193,-177,-160,-290,-283,-300,-298,-1156,-595,-1150,-714,-1279,-1265,-1864,-1825]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 g6 4. O-O Bg7 5. d4 O-O 6. c3 c6 7. Ne5 Nbd7 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (7... Nfd7 8. Nxd7 Nxd7 9. Nd2 e5 10. dxe5 Nxe5 11. Nf3 Nxf3+ 12. Bxf3 Bf5 {½-½ (12) Zelcic,R (2493)-Stevic,H (2601) Zagreb 2017}) 8. Bf4 Nh5 {LiveBook: 5 Games} (8... Re8 {NOTEXT} 9. Nd3 Nh5 10. Bg5 h6 11. Be3 e5) 9. Nd3 $146 ({Find the theoretical novelty and annotate with similar games:} 9. Nxd7 Qxd7 10. Be3 Re8 11. Qd2 Nf6 12. Bf4 Nh5 13. Be3 Nf6 {½-½ (13) Supancic,D (2297)-Kreisl,R (2427) Austria 2017}) 9... Nxf4 {Black is slightly better.} 10. gxf4 Nf6 11. Nd2 Bf5 12. Ne5 Qc7 13. Qb3 Rad8 14. e3 Qc8 15. Qa3 Qc7 16. Rac1 e6 17. c4 Rfe8 18. Qc3 Nh5 19. Kh1 Qe7 20. b4 a6 21. Nef3 h6 22. Ne5 Nf6 23. Rg1 Nd7 24. Bf1 Nxe5 25. fxe5 f6 26. f4 fxe5 27. fxe5 Rf8 28. Rg3 g5 {[%cal Bg6g5,Bg5g4][%mdl 32]} 29. Kg1 (29. Be2 $11) 29... h5 $15 {[%cal Bh6h5,Bh5h4][%mdl 32]} 30. h3 $2 {[#]} (30. Bd3 $17) 30... h4 $1 $19 {[%cal Rh4g3]} 31. Rf3 g4 32. Rf2 gxh3 33. Be2 $2 (33. Rh2) 33... Bg6 {White must now prevent ...Qg5+.} 34. Rh2 Rf5 (34... dxc4 $142 35. Bxc4 {[#]} Bxe5 $1 {[%mdl 512]}) 35. Kh1 Rdf8 {aiming for ...Rf2.} 36. Rg1 (36. e4 $17 {keeps fighting.} Rf2 37. Rxf2 Rxf2 38. Qe3) 36... Rg5 {Strongly threatening ...Rxg1+.} 37. Bg4 Bf5 38. Bf3 $2 (38. Bxf5 Rxg1+ 39. Kxg1 Qg5+ 40. Kh1 Rxf5 41. cxd5 cxd5 42. Qd3) 38... Rg3 {Black is clearly winning.} 39. Rf2 Qg5 40. Rgf1 {[#]} Be4 $1 {[%mdl 512] Hoping for ...Rfxf3!} 41. Nxe4 dxe4 {Precision: White = 27%, Black = 39%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.21"]
[Round "4"]
[White "Lu, Shanglei"]
[Black "Xu, Jun"]
[Result "1-0"]
[ECO "C78"]
[WhiteElo "2640"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "117"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,117,16,10,15,9,17,8,0,0,39,30,20,26,29,30,41,37,47,51,47,38,46,43,33,34,60,8,36,46,37,0,58,49,75,81,82,80,129,114,125,134,234,215,208,200,200,59,207,195,204,206,203,200,195,222,211,195,195,-131,187,195,182,103,112,88,148,141,156,188,262,251,239,221,251,242,372,360,362,356,343,321,534,528,636,606,696,637,806,768,923,824,976,897,29975,29975,29975,29976,29982,29983,29984,29985]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 {[%cal Bf1b5,Bb5a4,Ba4c2,Bc2e4][%mdl 32]} a6 4. Ba4 Nf6 5. O-O Bc5 6. c3 b5 7. Bc2 d5 {C78: Ruy Lopez: Archangelsk and Möller Defences} 8. d4 dxe4 9. dxe5 Qxd1 10. Rxd1 {LiveBook: 6 Games} exf3 11. exf6 gxf6 12. Be4 Bd7 $1 13. Nd2 $146 {a4 is the strong threat.} ({Predecessor:} 13. a4 O-O-O 14. axb5 Ne5 15. Bf4 Bxb5 {1-0 (48) Svidler,P (2758)-Topalov,V (2785) Khanty-Mansiysk 2014}) 13... O-O-O 14. Nxf3 Rhe8 15. Re1 f5 16. Bc2 Rxe1+ 17. Nxe1 Re8 {[%cal Re8e1]} 18. Nd3 Bb6 19. Bf4 b4 20. Rd1 (20. Nxb4 Nxb4 21. cxb4 Re2 $17) 20... bxc3 21. bxc3 f6 22. h4 (22. Bg3 $14) 22... Re2 23. Rd2 Re4 24. Bg3 Rc4 (24... Ne5 $1 $11 25. Nxe5 Re1+ 26. Kh2 fxe5) 25. Nf4 $36 {[%mdl 2048] White has the initiative.} Ne7 26. Bd3 Ra4 27. Nh5 Ng8 28. Bf4 Be6 29. g3 a5 (29... Rxa2 $16 30. Rxa2 Bxa2) 30. Ng7 $18 Bxa2 31. Ba6+ (31. Nxf5 Bc4 $14) 31... Kb8 32. Rd8+ {[%mdl 1024] White has strong compensation.} ({But not} 32. Nxf5 $6 Bb1 $16) 32... Ka7 33. Bb5 Re4 34. Bc6 {[%csl Gc6][%cal Rd8a8]} (34. Nxf5 Re1+ 35. Kh2 Ne7 $11) 34... Re1+ 35. Kg2 {[%csl Gc6][%cal Rd8a8]} Ka6 {Black wants to play ...Ne7.} 36. Ne8 Ne7 37. Ra8+ Ba7 38. Nxc7+ Kb6 {[#]} 39. Bf3 $1 a4 40. Nb5 (40. Rf8 $18) 40... Kxb5 $16 41. Rxa7 Bd5 {[#]} ({Black should play} 41... Nc6 42. Bxc6+ (42. Rxh7 Ne5 $14) 42... Kxc6) 42. c4+ $1 {[%mdl 512]} Kxc4 43. Rxa4+ Kb5 (43... Kc5 $142 44. Be3+ Kd6) 44. Ra7 $18 Bxf3+ 45. Kxf3 {[%mdl 4096] Endgame KRB-KRN} Re6 46. h5 Kb6 (46... Kc5 $142 47. Be3+ Kc6) 47. Rc7 Ka6 48. Be3 Kb5 49. Bd4 Ka6 $2 (49... f4 50. gxf4 f5) 50. Bc5 Nd5 51. Rxh7 Kb5 52. Bf8 f4 53. g4 Kc4 54. h6 {[%cal Bh5h6,Bh6h7][%mdl 32]} Rb6 55. Rd7 f5 {[#]} 56. Rxd5 $1 {[%mdl 512] White mates.} Kxd5 57. h7 fxg4+ 58. Kxg4 Rg6+ 59. Kf3 {Precision: White = 80%, Black = 57%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.21"]
[Round "4"]
[White "Zhou, Jianchao"]
[Black "Liu, Yan"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2616"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,71,-11,-7,-10,-5,-12,0,-15,25,20,28,15,35,30,35,15,29,0,20,0,0,0,0,0,24,19,24,16,24,18,16,19,34,25,38,32,45,63,63,26,13,14,32,27,34,14,14,14,30,30,47,27,27,27,28,28,28,28]} 1. Nf3 Nf6 2. c4 e6 3. g3 a6 4. Bg2 b5 5. b3 Bb7 6. O-O c5 7. d3 {A13: English Opening: 1...e6} Be7 8. e4 d6 {LiveBook: 8 Games} 9. Nc3 {The position is equal.} b4 $146 ({Predecessor:} 9... Qb6 10. Rb1 Nc6 11. h3 Nd7 12. Be3 Bf6 13. Ne2 Qc7 14. Nh2 h5 {1-0 (40) Sviridov,V (2504)-Fedorchuk,S (2621) Minsk 2017}) 10. Ne2 Nc6 11. Qc2 Nd7 12. d4 cxd4 13. Nfxd4 Nxd4 14. Nxd4 O-O 15. Be3 Nc5 16. Rad1 Qb6 17. Rd2 Rfe8 18. Rfd1 g6 19. Ne2 {[%cal Bd4e2,Be2c1,Bc1d3][%mdl 32]} e5 20. Nc1 Qc7 21. f3 a5 22. h4 h5 23. Nd3 Red8 24. Bh3 {Nxc5 is the strong threat.} Bc6 25. Kh2 Kg7 26. Qb2 f6 27. Nxc5 dxc5 28. Be6 Rxd2+ 29. Qxd2 Rd8 30. Qc2 Rxd1 31. Qxd1 Qd6 32. Bd5 Bxd5 33. exd5 Qd7 {White has an edge.} 34. Qc2 Qf5 35. Qxf5 gxf5 36. Kg2 {Precision: White = 70%, Black = 51%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.21"]
[Round "4"]
[White "Zeng, Chongsheng"]
[Black "Xu, Xiangyu"]
[Result "0-1"]
[ECO "A48"]
[WhiteElo "2542"]
[BlackElo "2574"]
[Annotator "TA"]
[PlyCount "93"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,93,3,7,31,31,31,23,33,26,29,20,60,57,66,58,64,60,54,48,76,73,78,63,77,77,75,65,69,0,108,67,72,66,96,91,91,90,90,96,104,81,96,75,77,56,68,66,69,0,0,12,40,31,37,31,64,74,131,95,152,145,214,118,120,83,127,0,0,0,0,0,0,-138,-145,-159]} 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 h6 5. Bh4 O-O 6. e4 d6 7. c3 Qe8 8. Be2 e5 9. dxe5 dxe5 10. O-O Nbd7 11. Qc2 {LiveBook: 19 Games. A48: 1 d4 Nf6 2 Nf3 g6: Torre, London and Colle Systems} (11. Re1 Nh5 12. Bf1 Nf4 13. Nc4 Nb6 14. Ne3 Qe6 15. a4 a5 16. Qc2 Bd7 17. c4 g5 18. Bg3 Qg6 19. c5 {1-0 (37) Jussupow,A (2585)-Tomazini,Z (2414) Tallinn 2016}) 11... b6 12. Nc4 $146 ({Predecessor:} 12. Rfe1 Bb7 13. Bf1 Nh5 14. Nc4 f5 15. exf5 Bxf3 16. gxf3 gxf5 17. Rad1 Kh8 18. Kh1 Qe6 {½-½ (75) Arias,J (2202)-Brattain,M (2376) chess.com INT 2017}) 12... Bb7 13. Nfd2 {White is slightly better.} Nc5 {[%cal Rf6e4]} 14. f3 Nh5 15. Rfe1 Bf6 16. Bf2 Qe7 17. b4 Ne6 18. Bf1 Rfd8 19. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} a6 20. Nb3 Rd7 21. a5 b5 22. Nb2 Rad8 23. Nd3 Nhf4 {[%cal Rf4d3]} 24. Nxf4 (24. Ndc5 $14 Nxc5 25. Nxc5) 24... Nxf4 (24... exf4 $11 {keeps the balance.} 25. Be2 c5 $1 {[%mdl 512]} 26. bxc5 Bh4) 25. Bc5 Qe8 26. c4 Nd3 {[#]} 27. cxb5 $1 {[%mdl 512] Black must now prevent Red1.} Nxe1 (27... axb5 28. Bxd3) 28. Rxe1 axb5 29. Bxb5 c6 30. Bc4 Be7 31. a6 Ba8 32. Qc3 Bxc5+ $1 33. Nxc5 Rd1 34. Nd3 (34. Rxd1 $14 Rxd1+ 35. Kf2) 34... Rxe1+ $11 35. Qxe1 Rd4 36. Qc3 {[%mdl 1024] White has compensation.} Qe7 37. g3 {Hoping for f4.} Kg7 38. Kf2 h5 (38... g5 $142) 39. Ke3 {aiming for Nxe5!} Qa7 (39... f6 $142) 40. Nc5 $16 Kh7 {[#]} (40... Kh8 $16 41. f4 f6) 41. h4 ({White should try} 41. f4 $1 $18) 41... Qe7 42. f4 exf4+ 43. Kxd4 ({Only move:} 43. Kxf4 $16 Rd6 44. Kf3) 43... Qd6+ $11 44. Bd5 {Qf3 is the strong threat.} fxg3 45. Qf3 f6 46. Ne6 (46. Kc4 $11 cxd5+ 47. exd5) 46... Qe5+ $17 47. Ke3 {Precision: White = 63%, Black = 53%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.21"]
[Round "4"]
[White "Xu, Yi"]
[Black "Bai, Jinshi"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2522"]
[BlackElo "2586"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,59,29,39,20,31,31,29,28,22,26,21,21,24,15,19,25,23,20,18,0,0,-11,-2,0,0,-19,-8,-39,-27,-58,-47,-74,-60,-98,0,-69,0,-98,0,-71,0,-85,0,-81]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3][%mdl 32]} Nd6 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} 9. c3 Bf5 {LiveBook: 23 Games} 10. Be2 a5 $146 ({Predecessor:} 10... O-O 11. Qb3 Be6 12. Bd3 a5 13. Re1 Qd7 14. Nf1 Bf5 15. Bxf5 Nxf5 16. Bf4 {½-½ (24) Grischuk,A (2761)-Yu,Y (2753) Jiayuguan 2017}) 11. a4 O-O 12. Re1 Nb8 13. Nf1 Nd7 14. Ne3 Be6 15. Bd3 Re8 16. b3 c6 17. c4 Nf6 18. Ne5 Nde4 {[%cal Bd6e4,Be4f6,Bf6h5,Bh5g7][%mdl 32]} 19. c5 Nd7 20. Nxd7 Qxd7 21. f3 Nf6 $1 22. Qc2 g6 23. Nf1 Nh5 24. Be3 Ng7 25. Bf4 Nh5 26. Be3 $1 Ng7 27. Bf4 $1 Nh5 28. Be3 $1 Ng7 29. Bf4 $1 Nh5 30. Be3 $1 {Precision: White = 62%, Black = 61%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.21"]
[Round "4"]
[White "Fang, Yuxiang"]
[Black "Wen, Yang"]
[Result "0-1"]
[ECO "A31"]
[WhiteElo "2502"]
[BlackElo "2585"]
[Annotator "TA"]
[PlyCount "56"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,56,-23,-22,-24,-27,-40,-12,-57,-60,-59,-66,-90,-95,-85,-83,-90,-88,-95,-58,-96,-99,-208,-210,-187,-176,-176,-173,-179,-158,-170,-162,-188,-183,-241,-227,-216,-230,-371,-195,-403,-401,-368,-391]} 1. Nf3 g6 2. d4 Bg7 3. g3 c5 4. Bg2 cxd4 5. Nxd4 Nc6 6. Nb3 Nf6 7. c4 d6 {A31: Symmetrical English: 2 Nf3 Nf6 3 d4} (7... O-O 8. O-O b6 9. Nc3 Bb7 10. c5 Rc8 11. e4 Ba8 12. cxb6 axb6 13. f4 d6 14. Be3 Nd7 15. Qe2 Nc5 16. Rfd1 {0-1 (51) Maghsoodloo,P (2584)-Tregubov,P (2585) Doha 2016}) 8. Nc3 Be6 {LiveBook: 3 Games} 9. Nd5 Nd7 {Black has an edge.} 10. O-O O-O 11. Be3 $146 ({Predecessor:} 11. Rb1 Nb6 12. Nd2 Qd7 13. a3 Bh3 14. b3 Bxg2 15. Kxg2 Nd4 16. Bb2 Nxd5 17. cxd5 {½-½ (28) Karavade,E (2332)-Ramaswamy,A (2239) Visakhapatnam 2006}) 11... Bxb2 12. Rb1 Bg7 13. Nd4 Nxd4 14. Bxd4 Bxd4 15. Qxd4 Nc5 16. h4 h5 17. Bf3 Rc8 18. g4 (18. e4 $17) 18... hxg4 $19 19. Bxg4 Bxg4 20. Qxg4 e6 21. Nf4 Qf6 22. h5 Qf5 23. Qxf5 gxf5 24. Kh2 (24. Rfd1 $142) 24... Kg7 25. Rfd1 Kf6 26. Nd3 (26. f3 $142) 26... Rh8 (26... Ne4 $142 27. Rxb7 Rh8) 27. Nf4 $2 {[#]} (27. Nxc5 Rxh5+ 28. Kg3 Rg8+ 29. Kf4 dxc5 30. Rxb7) 27... e5 28. Nd5+ Ke6 {Precision: White = 26%, Black = 67%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.21"]
[Round "4"]
[White "Liu, Guanchu"]
[Black "Wang, Chen"]
[Result "1/2-1/2"]
[ECO "C47"]
[WhiteElo "2459"]
[BlackElo "2495"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 28,64,5,9,33,33,33,27,58,58,58,64,58,56,62,49,58,56,55,47,47,47,49,43,48,48,58,41,54,41,54,41,41,0,51,0,41,0,51]} 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nxd4 Bb4 6. Nxc6 bxc6 7. Bd3 d5 8. exd5 cxd5 9. O-O O-O 10. Bg5 c6 11. Qf3 Bd6 12. Bxf6 Qxf6 13. Qxf6 {C47: Scotch Four Knights and Four Knights with 4 g3} gxf6 14. Ne2 Rb8 15. b3 {[#] LiveBook: 34 Games} Bg4 $146 ({Predecessor:} 15... Re8 16. Rad1 Bg4 17. f3 Bf5 18. Bxf5 Rxe2 19. Bd3 Re3 20. Rfe1 Rxe1+ 21. Rxe1 {½-½ (30) Wang,C (2500)-Lysyj,I (2691) China 2015}) 16. Nd4 c5 17. Nf5 {[#] aiming for Nh6+.} Bxf5 18. Bxf5 Rfe8 19. Rfe1 h6 20. g3 Kf8 21. Kf1 Bc7 22. Rxe8+ Rxe8 23. Re1 Rxe1+ 24. Kxe1 $14 {[%mdl 4096] Endgame KB-KB} Ba5+ 25. Ke2 Ke7 26. f4 c4 27. Kf3 Bb6 28. h3 Ba5 29. Ke3 Bb6+ 30. Kf3 Ba5 31. Ke3 Bb6+ 32. Kf3 Ba5 {Precision: White = 47%, Black = 42%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.22"]
[Round "5"]
[White "Bai, Jinshi"]
[Black "Zhou, Jianchao"]
[Result "1/2-1/2"]
[ECO "A07"]
[WhiteElo "2586"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,59,8,24,18,14,16,8,9,19,0,20,0,0,0,0,0,0,0,10,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,5,7,-8,0,0]} 1. Nf3 d5 2. g3 Nf6 3. Bg2 c6 4. O-O Bg4 5. d3 Nbd7 6. h3 Bxf3 {A07: Réti Opening: New York and Capablanca Systems} 7. Bxf3 e5 8. e4 dxe4 9. dxe4 Bc5 10. a4 a5 {LiveBook: 5 Games} 11. Qe2 O-O {The position is equal.} 12. Nd2 Qc7 13. Rd1 $146 ({Predecessor:} 13. Nb3 Bb6 14. Qc4 Rfd8 15. Rd1 h6 16. Bd2 Nf8 17. Bc3 Ne6 18. Kg2 c5 19. Rxd8+ Rxd8 {½-½ (79) Sargissian,G (2670)-Shirov,A (2679) Douglas 2016}) 13... Rfb8 14. Nb3 Bb4 15. Bd2 Bxd2 16. Qxd2 Nf8 17. Qd6 Qxd6 18. Rxd6 Ne6 19. Bg2 Kf8 20. Rdd1 Ke7 21. h4 Nd7 22. Bh3 Ndc5 23. Bxe6 Nxe6 24. f3 f6 25. Kf2 Rd8 26. Ke3 Rxd1 27. Rxd1 b6 28. h5 Rd8 29. Rxd8 Nxd8 30. c4 {Precision: White = 82%, Black = 89%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.22"]
[Round "5"]
[White "Wen, Yang"]
[Black "Liu, Guanchu"]
[Result "1/2-1/2"]
[ECO "A21"]
[WhiteElo "2585"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,61,10,12,24,20,19,0,0,0,25,0,0,-8,9,-27,-41,-23,-24,-48,-38,-38,0,-29,51,53,42,40,48,36,46,38,70,59,52,27,85,75,72,70,64,87,73,47,43,46,46,46,46,46,41,7,6,6]} 1. g3 e5 2. c4 f5 3. Bg2 Nf6 4. Nc3 Bb4 5. Qb3 a5 6. a3 {LiveBook: 3 Games. A21: English Opening: 1...e5 2 Nc3} Bxc3 (6... Bc5 7. Qb5 Na6 8. Qxa5 O-O 9. Na4 b6 10. Qc3 Bxf2+ 11. Kxf2 Ne4+ 12. Bxe4 fxe4+ 13. Ke1 {½-½ (39) Stevic,H (2624)-Sulava,N (2514) Opatija 2012}) 7. Qxc3 d6 {[%cal Bd7d6,Bd6e5,Be5e4][%mdl 32]} 8. d3 O-O $146 ({Predecessor:} 8... Nc6 9. e3 O-O 10. Ne2 Qe8 11. O-O Qh5 12. Qc2 f4 13. exf4 {½-½ (52) Zalimaite,I (1909)-Narmontas,R (2109) Plunge 2012}) 9. Bg5 Nc6 10. f4 Qe8 11. fxe5 dxe5 12. Bxc6 (12. Bxf6 $5 Rxf6 13. Bd5+ Kh8 14. Nf3 $11) 12... Qxc6 13. Nf3 {[%cal Bg1f3,Bf3d2,Bd2b3,Bb3d4,Bd4f5][%mdl 32]} Nd7 14. O-O-O Qe6 15. d4 e4 16. Nd2 b6 ({Black should play} 16... b5 $11) 17. d5 $36 {[%mdl 2048] White has the initiative.} Qg6 18. Bf4 c6 19. dxc6 Qxc6 20. Nb3 Ba6 21. Rd6 Qb7 22. Rhd1 Rf7 (22... Nf6 $11 {remains equal.}) 23. Nd4 Rc8 24. b3 a4 $1 {[%cal Ra4b3] [#] Strongly threatening ...axb3.} 25. Nxf5 $1 {Threatens to win with R6d4.} axb3 26. R6d4 (26. Ne3 {with more complications.} Bxc4 27. Nxc4 b5 28. Qxb3 Rxc4+ 29. Kb1) 26... Rxf5 27. Rxd7 Qxd7 28. Rxd7 {[%csl Gd7][%cal Rc3g7] [#]} Rxc4 29. Rxg7+ Kh8 30. Rc7+ (30. Qxc4 $5 Bxc4 31. Re7 $16) 30... Rxc3+ 31. Rxc3 {Precision: White = 62%, Black = 50%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.22"]
[Round "5"]
[White "Xu, Xiangyu"]
[Black "Lu, Shanglei"]
[Result "1/2-1/2"]
[ECO "A14"]
[WhiteElo "2574"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,60,3,8,0,0,0,0,1,4,0,26,36,51,50,27,35,52,32,38,45,35,10,33,32,45,33,47,47,61,26,54,9,38,20,26,17,28,13,22,27,27,7,14,11,15]} 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 {[%cal Bg1f3,Bf3d4,Bd4b5][%mdl 32]} O-O 6. b3 dxc4 7. bxc4 c5 8. O-O cxd4 {A14: English Opening: 1...e6 with b3 by White} 9. Nxd4 e5 {LiveBook: 3 Games} 10. Nb5 {Threatens to win with Qxd8.} Nc6 {[%cal Bb8c6,Bc6a5,Ba5c4][%mdl 32]} 11. N1c3 Na5 $146 ({Predecessor:} 11... a6 12. Qxd8 Rxd8 13. Nc7 Rb8 14. Bg5 Rd4 15. Rac1 Rxc4 16. N3d5 Rxc1 17. Nxe7+ Nxe7 18. Rxc1 {½-½ (31) Ding,L (2772)-Nisipeanu,L (2672) Antalya 2017}) 12. Qxd8 Rxd8 13. Be3 Nxc4 14. Bxa7 Bb4 {[#] Hoping for ...Bxc3.} 15. Rfc1 $1 Bd7 {Strongly threatening ...Bxc3.} 16. a4 Bxc3 17. Rxc3 Bxb5 $1 18. axb5 Nd6 19. b6 Nfe8 20. Rc5 f6 21. Rac1 Rd7 22. Bd5+ Kf8 23. h4 (23. Be6 $5 {[%cal Re6d7]} Re7 24. Bb3 $16) 23... Rad8 24. e4 Re7 25. h5 g6 26. hxg6 hxg6 27. Kg2 f5 28. exf5 gxf5 29. Bf3 Kf7 30. Rd1 Kf6 {Precision: White = 55%, Black = 59%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.22"]
[Round "5"]
[White "Xu, Jun"]
[Black "Xu, Yi"]
[Result "1/2-1/2"]
[ECO "A18"]
[WhiteElo "2501"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,62,0,0,-5,-8,3,11,44,46,93,100,125,102,115,86,111,30,45,52,50,22,29,29,29,29,29,29,29,26,29,29,29,0,0,0,9,10,16,0,0]} 1. c4 Nf6 2. Nc3 e6 3. e4 d5 4. e5 d4 5. exf6 dxc3 6. bxc3 Qxf6 7. d4 e5 8. Nf3 Nc6 {A18: English Opening: Flohr-Mikenas System (1 c4 Nf6 2 Nc3 e6 3 e4)} 9. Bg5 Qg6 10. d5 Nb8 11. h4 h6 12. h5 Qd6 13. Be3 {LiveBook: 9 Games} Nd7 14. c5 Nxc5 15. Bb5+ {[#]} Kd8 $146 16. O-O {[#] And now Bxc5 would win.} Qf6 17. d6 $1 Nd7 18. dxc7+ Kxc7 19. Qd5 {Threatens to win with Qc4+.} Qe6 {[#]} 20. Qxe6 ({White should try} 20. Qd2 $1 $16) 20... fxe6 $11 21. Rfd1 Bd6 22. Nd2 Bc5 23. Bxd7 Bxe3 24. Bxc8 Bxd2 $1 25. Bxb7 Rad8 $1 26. Be4 $36 {[%mdl 2048] Black must now prevent Rab1. White fights for an advantage.} Rd6 27. Rab1 {Hoping for Rb7+.} Rb8 28. Rb3 Rxb3 {The position is equal.} 29. axb3 a5 30. Kf1 Kd7 31. Ke2 Bxc3 {Precision: White = 44%, Black = 79%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.22"]
[Round "5"]
[White "Wang, Chen"]
[Black "Zeng, Chongsheng"]
[Result "0-1"]
[ECO "A00"]
[WhiteElo "2495"]
[BlackElo "2542"]
[Annotator "TA"]
[PlyCount "88"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,88,0,10,8,8,11,21,16,76,81,82,62,41,46,122,99,99,2,92,90,62,28,40,-27,47,42,58,54,73,-34,-23,-33,-38,-71,-61,-56,-66,-280,-66,-58,-64,-69,-57,-64,-76,-88,-95,-146,-136,-143,-122,-108,-101,-119,-114,-154,-148,-211,-205,-217,0,0,0,0,20,-5,0,-40,-10,-89,0,0,0,0,0,-37,0,-770,-758,-29997,-29997]} 1. e4 d5 2. Nc3 dxe4 3. Nxe4 e5 (3... Nd7 4. Nf3 Ngf6 5. Nxf6+ Nxf6 6. d4 g6 7. Bc4 Bg7 8. O-O O-O 9. c3 Bg4 10. h3 Bxf3 11. Qxf3 c6 12. Re1 Ne8 13. Bb3 e6 14. Bf4 a5 15. a4 Nc7 16. Re2 Nd5 17. Bg3 Qf6 18. Qe4 Qf5 19. Qxf5 gxf5 20. Bh2 {½-½ (30) Dubov,D (2648)-Rakhmanov,A (2641) St Petersburg 2016}) 4. Bb5+ Bd7 5. Qe2 Nc6 {Hoping for ...Nd4.} 6. Nf3 {Black must now prevent d4! A00: Irregular Openings} Qe7 $1 7. O-O $146 ({Predecessor:} 7. Nc3 f6 8. O-O O-O-O 9. d3 Nd4 10. Nxd4 exd4 11. Qxe7 Nxe7 12. Bxd7+ Rxd7 {1-0 (61) Fantoni,F (1656)-Reilly,H (1553) IECC email 2000}) 7... O-O-O 8. c3 {The position is equal.} h5 (8... a6 $11 {remains equal.} 9. Bxc6 Bxc6) 9. b4 $16 Qe8 10. d3 h4 11. h3 Kb8 ({Better is} 11... f6 $14) 12. a4 f6 13. Re1 (13. Bc4 $16) 13... Qg6 (13... g5 $1 $11 {keeps the balance.}) 14. Kh1 Nh6 15. Nxh4 Qh7 $1 16. Kg1 (16. Nf3 $14) 16... Be7 (16... Nf7 $1 $11 17. Bxc6 Bxc6) 17. Bxc6 $14 Bxc6 18. Bxh6 $1 gxh6 {[%cal Bg7h6,Bh6h5][%mdl 32]} 19. Qf3 ({White should play} 19. b5 $16 Bd5 20. Ng3) 19... f5 $1 $15 {[%cal Rf5e4]} 20. Nxf5 Rdf8 21. g4 h5 22. Kf1 Bd7 $1 23. Qe3 $2 (23. Ke2 $15) 23... Bxf5 $2 (23... hxg4 $1 $19 24. Nxe7 Qxe7) 24. gxf5 Rxf5 ({Don't play} 24... Qxf5 $6 25. Ke2 $14) 25. Ke2 Rhf8 {[%mdl 1024] Black has compensation.} 26. f3 Rf4 27. Rh1 Qf7 {[%cal Rf4f3]} 28. Raf1 (28. Rhf1 $142) 28... Qa2+ $1 $17 29. Qd2 Qxa4 30. Rhg1 Qd7 31. Rg7 Qe6 32. Qe3 b6 33. Rh7 (33. b5 $17 {was worth a try.}) 33... Bh4 $19 34. Rxh5 Rg8 $2 ({Stronger than} 34... Qxh3 35. Nd2 $11) (34... Qg6 $19 35. Rxe5 Qg2+ 36. Rf2 Bxf2 37. Qxf2 Qxh3) 35. Rg1 $1 $11 Qa2+ 36. Nd2 {Strongly threatening Rxg8+.} Bf6 37. Rg4 Rd8 38. Rh7 Qc2 39. c4 {[#]} (39. b5 $11) 39... Rfd4 (39... Bg5 $1 $17 {[%mdl 512]} 40. Rxg5 Rfd4) 40. Rxd4 exd4 41. Qe4 $1 Rg8 $40 {[%mdl 128] White needs to defend precisely.} 42. Qc6 Bd8 {( -> ...Rg2+)} 43. f4 $2 {[%mdl 8192]} (43. Qd7 $11) 43... Rg3 $19 44. Qd7 Re3+ {Precision: White = 37%, Black = 61%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.22"]
[Round "5"]
[White "Liu, Yan"]
[Black "Fang, Yuxiang"]
[Result "1/2-1/2"]
[ECO "D94"]
[WhiteElo "2481"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,61,25,29,30,30,22,26,20,27,29,29,26,30,21,25,28,18,26,22,21,15,22,8,3,0,5,0,16,14,18,7,16,10,18,18,27,18,18,12,16,12,22,12,33,0]} 1. Nf3 d5 2. e3 Nf6 3. c4 c6 4. Nc3 g6 5. d4 Bg7 6. Be2 O-O 7. O-O a6 {[%cal Ba7a6,Ba6a5][%mdl 32]} 8. a4 a5 9. b3 {D94: Grünfeld: 4 Nf3 Bg7 5 e3} (9. cxd5 cxd5 10. Qb3 Nc6 11. Bd2 Rb8 12. Rfc1 Bf5 13. Be1 Nb4 14. Nb5 Nc6 15. Nc3 Nb4 16. Nb5 Nc6 17. Nc3 {½-½ (17) Liu,Y (2413)-Fang,Y (2493) Chengdu 2017}) 9... Na6 10. Ba3 {LiveBook: 7 Games} Nb4 11. Rc1 $146 {White has an edge.} ({Predecessor:} 11. Bxb4 axb4 12. Na2 dxc4 13. Bxc4 c5 14. dxc5 Qa5 15. Qe1 Ne4 16. Nd4 Qxc5 17. Qxb4 Qxb4 18. Nxb4 {1-0 (58) Nyback,T (2591)-Zaibi,A (2297) Tromsoe 2014}) 11... Ne4 12. cxd5 Nxc3 13. Rxc3 {aiming for dxc6.} Nxd5 14. Rc1 Bg4 15. h3 Bxf3 16. Bxf3 Re8 17. Qd3 e6 18. Rfd1 Bf8 19. Bxf8 Rxf8 20. Bxd5 exd5 21. Rc5 Qb6 22. Qc3 Ra6 23. Rb1 Rb8 24. Qd2 Kg7 25. Qe1 Kg8 26. Qc3 Qa7 27. Qd2 Qb6 28. Rb2 Kg7 29. Qe1 Kg8 30. Qc3 Qa7 31. Qe1 {Precision: White = 54%, Black = 42%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.23"]
[Round "6"]
[White "Zhou, Jianchao"]
[Black "Fang, Yuxiang"]
[Result "1/2-1/2"]
[ECO "D35"]
[WhiteElo "2616"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "155"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,155,46,53,41,49,43,64,44,47,42,46,49,60,54,54,55,63,50,125,126,138,143,143,140,134,122,143,144,149,145,152,106,123,97,116,124,124,123,131,160,120,83,86,65,65,57,60,35,35,35,35,37,38,40,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,116,59,59,0,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,59,0,12,12,14,12,31,31,29,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-11,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 c6 6. e3 Bf5 7. Qf3 Be6 8. Bxf6 {D35: Queen's Gambit Declined: Exchange Variation} Qxf6 9. Qxf6 gxf6 10. Bd3 Nd7 11. Nge2 Nb6 {LiveBook: 19 Games} 12. Rc1 (12. Nf4 Nc8 13. f3 h5 14. h4 Bd6 15. Nce2 Bd7 {1-0 (54) Giri,A (2762)-Zvjaginsev,V (2643) Antalya 2017}) (12. O-O-O Nc8 13. e4 Nd6 14. exd5 cxd5 15. Kb1 Bh6 {½-½ (52) Zhou,J (2595)-Fang,Y (2477) Beijing 2017}) 12... Nc8 $146 ({Predecessor:} 12... Bb4 13. a3 Bxc3+ 14. bxc3 Nc4 15. Bxc4 dxc4 {½-½ (70) Rakhmanov,A (2605)-Karpov,V (2373) Moscow 2010}) 13. Nf4 Nd6 14. f3 Bh6 15. Nce2 Kd7 16. Kf2 Rae8 17. g4 f5 18. h3 {[%cal Bh2h3,Bh3h4][%mdl 32]} Bg5 19. Ng2 h5 (19... h6 $14) 20. h4 $16 {Hoping for gxf5.} Be7 {[#]} 21. g5 $1 Reg8 22. Ngf4 Ne8 23. b4 a6 24. Rb1 Bd6 25. a4 {[%cal Ba2a4,Ba4a5][%mdl 32]} Ng7 26. a5 Kd8 27. Bc2 Bd7 28. Nd3 Re8 29. f4 Reg8 30. Ne5 Be6 31. Nc1 Ne8 {[%cal Bg7e8,Be8f6,Bf6e4][%mdl 32]} 32. Ncd3 f6 33. Nf3 Be7 34. gxf6 Nxf6 35. Ng5 Ne4+ 36. Ke1 Rh6 ({Much weaker is} 36... Bxg5 37. fxg5 Ke7 38. Rg1 $16) 37. Nc5 Nxc5 38. bxc5 Kc7 39. Kf2 Bd7 40. Rb6 $36 {[%mdl 2048] White is pushing.} Rf6 41. Bd1 Rh6 42. Bf3 {And now Rhb1 would win.} Rhh8 43. Be2 Bc8 44. Rbb1 Bd7 45. Rbg1 Kc8 {[#]} (45... Bf6 $14) 46. Kf3 (46. Nf7 $1 $16) 46... Rg7 47. Kf2 ({White should play} 47. Ra1 $14) 47... Bd8 (47... Rgg8 $1 $11) 48. Ra1 $14 Be7 49. Rh3 Bd8 50. Ke1 Be7 51. Kd2 Bd8 52. Kc3 Re7 53. Kb4 Bc7 54. Rf1 Bd8 55. Rff3 Rg7 56. Rfg3 Bf6 57. Nf3 ({White should try} 57. Rh1 $14) 57... Rhg8 58. Rxg7 Rxg7 59. Ne5 Be6 60. Kc3 Bd8 61. Bxh5 {Black must now prevent Bg6.} Rh7 $1 {[%cal Rh7h5] The position is equal.} 62. Bg6 Rxh4 63. Rxh4 Bxh4 $11 {[%mdl 4096] Endgame KBB-KBN} 64. Nf3 Bd8 65. Kb4 Kd7 66. Ng5 Ke7 67. Bh5 Kf6 68. Be8 Ke7 69. Bh5 Kf6 70. Be2 Ke7 71. Nf3 Ke8 72. Bd3 Bf6 73. Kc3 Bd8 74. Kb4 Bf6 75. Kc3 Bd8 76. Kb4 Bf6 77. Kc3 Bd8 78. Kb4 {Precision: White = 72%, Black = 67%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.23"]
[Round "6"]
[White "Bai, Jinshi"]
[Black "Xu, Jun"]
[Result "1-0"]
[ECO "D94"]
[WhiteElo "2586"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "77"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 24,77,6,4,9,4,20,15,45,34,72,80,95,105,116,116,91,86,169,174,167,100,204,233,208,227,597,79,74,69,140,139,134,145,428,269,285,292,616,616,616,608,608,0,0,0,569,531,1145,1145,1144,1144,1134,1126,1110,1105]} 1. Nf3 c5 2. c4 Nc6 3. Nc3 g6 4. e3 Nf6 5. d4 cxd4 6. exd4 d5 7. cxd5 Nxd5 8. Bc4 Nb6 9. Bb3 Bg7 10. d5 Na5 11. O-O O-O 12. h3 {D94: Grünfeld: 4 Nf3 Bg7 5 e3} Nxb3 13. axb3 {LiveBook: 11 Games} Qd6 {[#]} 14. Re1 $146 {The position is equal.} ({Predecessor:} 14. Ra5 Qd8 15. Bg5 h6 16. Bh4 f5 17. Re1 g5 18. Nxg5 hxg5 19. Bxg5 Rf7 {1-0 (30) Ni,H (2654)-Ghaem Maghami,E (2556) Sharjah 2014}) 14... Bd7 15. Be3 Rfe8 16. Ne4 Qb8 17. Bd4 Bxd4 18. Qxd4 Bf5 19. Ng3 Bd7 20. Rad1 Qd8 (20... f6 $16) 21. h4 $18 e6 22. d6 (22. Ne4 $1 $18 {[%cal Re4f6]} Nxd5 23. Ne5) 22... Bc6 (22... f6 $16) 23. Ne5 $1 $40 {[%cal Re5g4][%mdl 128] Black must now prevent Ng4. Black is in trouble.} Nd7 24. Nxd7 $1 Qxd7 $2 {[#]} (24... Bxd7 25. h5 Rc8) 25. Qf6 $2 (25. Nh5 $1 $18 {[%mdl 512] is the precise move to win.} gxh5 26. Rd3) 25... Qd8 $16 26. Qf4 e5 (26... f5 $1 $14) 27. Rxe5 Rxe5 28. Qxe5 Qxh4 $2 {[%mdl 8192]} (28... Qe8 $16 29. Qd4 Qe6) 29. Rd4 Qh6 30. d7 Rd8 $2 {[#]} (30... Qc1+ 31. Nf1 Rd8) 31. Ne4 $1 $18 Qc1+ 32. Kh2 {Intending Nf6+ and mate.} Qh6+ 33. Kg1 {Nf6+ is the strong threat.} Qc1+ 34. Kh2 {White wants to mate with Nf6+.} Qh6+ 35. Kg3 {White is clearly winning.} g5 {intending ...Qh4+.} 36. Nf6+ Kf8 37. Rg4 Rxd7 38. Rxg5 {[%csl Gf6][%cal Rg5g8]} Rd3+ 39. f3 {Precision: White = 61%, Black = 28%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.23"]
[Round "6"]
[White "Zeng, Chongsheng"]
[Black "Wen, Yang"]
[Result "1/2-1/2"]
[ECO "E20"]
[WhiteElo "2542"]
[BlackElo "2585"]
[Annotator "TA"]
[PlyCount "190"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,190,-33,-44,-17,-57,-56,-54,-35,-30,-22,-21,-39,-54,-41,-50,-25,-46,-53,-48,-64,-52,-50,-50,-41,-72,-63,-73,0,0,0,0,0,0,0,0,19,19,41,41,46,0,0,0,51,0,43,33,62,61,83,81,80,50,50,45,43,42,50,14,15,15,39,0,0,-13,-8,-31,-31,-31,-31,-39,-49,-32,-31,-31,-31,-47,-47,-47,-56,-90,-83,-89,-77,-109,-106,-93,-99,-171,-25,-25,-25,-25,-8,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-32,-61,-61,-272,-272,-272,-272,-272,-272,-272,-272,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-277,-329,-329,-329,-329,-328,-73,-74,-74,-115,0,-129,-136,-167,0]} 1. d4 Nf6 2. Nf3 d5 3. c4 e6 4. g3 dxc4 5. Bg2 Bb4+ 6. Nc3 O-O 7. O-O Nc6 8. e3 Rb8 9. Qe2 {E20: Nimzo-Indian: 4 g3 and 4 f3} b5 10. Rd1 Nd5 11. Bd2 {LiveBook: 12 Games. Black is slightly better.} Bd6 (11... Be7 12. e4 Nxc3 13. bxc3 Na5 14. Be3 Bb7 15. d5 exd5 16. Bxa7 Ra8 {1-0 (34) Elwert,H (2724)-Windebank,G (2611) ICCF email 2006}) 12. Ne1 $146 ({Predecessor:} 12. e4 Nxc3 13. bxc3 Na5 14. Rab1 a6 15. h4 Bb7 16. Ng5 Ba3 {½-½ (43) Valeinis,J (2489)-Pessoa,F (2550) ICCF email 2014}) 12... Nxc3 13. bxc3 Bb7 14. a4 a6 $1 15. axb5 axb5 16. Rdb1 Qd7 17. Qh5 Ba8 18. Rxb5 g6 19. Rxb8 $1 gxh5 20. Rxf8+ Kxf8 21. Rxa8+ Kg7 22. e4 e5 23. Nf3 Ne7 (23... exd4 $17 {...Be5 is the strong threat.} 24. cxd4 Qg4) 24. Ra5 $11 Ng6 25. Be3 {[%cal Rd4e5]} f6 26. dxe5 Bxe5 27. Nd4 Ne7 28. h4 Qg4 29. Bf3 $36 {[%mdl 3072] White has compensation. White has good play.} Qh3 30. Bg2 Qg4 31. Bf3 (31. Ra1 $11) 31... Qh3 $14 32. Ra6 (32. Rc5 $14) 32... Qc8 (32... Bxg3 $5 33. fxg3 Qxg3+ 34. Kf1 Qxh4 $16) 33. Ra4 Qb7 34. Kg2 Qb1 35. Rxc4 Qd3 36. Rc5 Bd6 37. Ne6+ Kg8 38. Nf4 ({Stronger than} 38. Nxc7 Bxc5 39. Bxc5 Ng6 $17) 38... Qc2 39. Ra5 Qxc3 40. Ra8+ Kf7 $1 41. Bxh5+ Ng6 42. Nxg6 hxg6 43. Bf3 Bc5 44. Bxc5 Qxc5 $15 {[%mdl 4096] Endgame KQ-KRB} 45. h5 gxh5 46. Rh8 Qc3 47. Bxh5+ Ke7 48. Rh7+ Kd6 49. Be8 Qe5 50. Bg6 c5 51. Rh5 Qb2 52. Rd5+ Kc6 53. Be8+ Kb6 54. Rd6+ {[#]} (54. Bg6 $17 {was necessary.}) 54... Kb7 (54... Ka5 $1 $19 {And now ...Qe5 would win.} 55. Bc6 Qe5) 55. Bf7 $1 $11 Kc7 56. Ra6 Qe2 57. Ra4 Qb5 58. Rc4 Kd6 59. Rc2 Qb1 60. Rc4 Qd1 61. Bg8 Kc6 62. Rc3 Qd4 63. Bd5+ Kb5 64. Rc2 {[#]} f5 $1 {[%mdl 512]} 65. Re2 $2 {[#]} ({White should try} 65. Ba8 $15) (65. exf5 Qxd5+) 65... c4 $1 $19 66. Bxc4+ Qxc4 {KQ-KR} 67. Rb2+ Kc5 68. exf5 Kd4 69. f6 Qc6+ 70. f3 Qxf6 71. Re2 Kd3 72. Re4 Qb2+ 73. Kh3 Qf2 74. Kg4 Qh2 75. Re5 Qh8 76. f4 Kd4 77. Kf3 Qh1+ 78. Kg4 Qh7 79. Kf3 Qg6 80. Kf2 Qc6 81. Re1 Qb7 82. Re5 Qh1 83. Re1 Qh2+ 84. Kf3 Qh5+ 85. Kg2 Qd5+ 86. Kh3 {Threatens to win with Rd1+.} Qf3 87. Re5 Kd3 88. Kh4 Qg2 89. g4 Qh2+ 90. Kg5 Qh7 91. Re1 Kd4 $2 (91... Kd2 $19 92. Re6 Qg8+ 93. Kf5 Qf7+ 94. Rf6 Qd5+ 95. Kg6 Qd3+ 96. f5 Ke3) 92. f5 $17 Qg7+ 93. Kh5 Qh7+ 94. Kg5 Qg8+ 95. Kh5 Qh7+ $2 {Precision: White = 68%, Black = 65%.} (95... Qh8+ $19 96. Kg5 Qg7+ 97. Kh5 Qf6) 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.23"]
[Round "6"]
[White "Xu, Yi"]
[Black "Xu, Xiangyu"]
[Result "1/2-1/2"]
[ECO "C42"]
[WhiteElo "2522"]
[BlackElo "2574"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,61,25,28,38,33,30,31,45,39,22,24,33,29,25,20,31,0,0,0,0,-14,-13,-24,-8,-28,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Be7 7. O-O O-O 8. c4 Nc6 9. cxd5 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves} (9. Nc3 Nxc3 {½-½ (9) Andreev,E (2460)-Cernousek,L (2467) Orlova 2015}) 9... Qxd5 10. Nc3 Nxc3 11. bxc3 {LiveBook: 6 Games. White has an edge.} Bf5 12. Bf4 Rac8 $146 ({Predecessor:} 12... Bxd3 13. Qxd3 Bd6 14. Bxd6 Qxd6 15. d5 Ne5 16. Nxe5 Qxe5 {½-½ (16) Onoprijchuk,B (2357)-Shlegin,S (2316) Saratov 2009}) 13. Re1 Bf6 14. Rb1 {[#] And now Rb5 would win.} Bxd3 15. Qxd3 b6 16. c4 Qd7 {[%cal Rc6d4]} 17. d5 Rfe8 18. Bg5 {[%cal Bf4g5,Bg5h4,Bh4g3][%mdl 32]} Ne5 19. Nxe5 Bxe5 20. Bh4 Bd6 21. Bg3 h6 22. h3 (22. Bxd6 {is interesting.} cxd6 23. g3 f6 24. Kg2 Kf8 25. Rbc1) 22... Rxe1+ 23. Rxe1 {The position is equal.} Re8 24. Rxe8+ Qxe8 25. Bxd6 cxd6 $11 {[%mdl 4096] Endgame KQ-KQ} 26. Qa3 Qe1+ 27. Kh2 Qe5+ 28. Kg1 Qa1+ 29. Kh2 Qe5+ 30. Kg1 Qe1+ 31. Kh2 {Precision: White = 62%, Black = 66%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.23"]
[Round "6"]
[White "Liu, Guanchu"]
[Black "Liu, Yan"]
[Result "1/2-1/2"]
[ECO "B96"]
[WhiteElo "2459"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "61"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 29,61,10,9,18,16,0,0,0,0,0,0,0,0,0,0,0,0,-14,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bc1 Nf6 8. Bg5 e6 9. f4 h6 10. Bh4 Qb6 11. a3 Be7 {B96: Sicilian Najdorf: 6 Bg5 e6 7 f4, lines other than 7...Qb6 and 7...Be7} 12. Bf2 Qc7 13. Qf3 Nbd7 14. O-O-O b5 15. g4 g5 {LiveBook: 13 Games. The position is equal.} (15... Bb7 16. Bg2 g5 17. h4 gxf4 18. g5 Ne5 19. Qxf4 hxg5 20. hxg5 Rxh1 21. Rxh1 {0-1 (59) Karjakin,S (2760)-Vachier Lagrave,M (2789) London 2017}) 16. Bg2 Rb8 {[%cal Ba8b8,Bb8b4,Bb4c4,Bc4c2][%mdl 32]} 17. Qh3 b4 18. axb4 Rxb4 {[#]} 19. fxg5 $146 ({Predecessor:} 19. Rhf1) 19... Nxg4 $1 20. Qxg4 Bxg5+ 21. Kb1 $1 {[#] And now Nb3 would win.} (21. Rd2 Rg8 $17) 21... Qxc3 $1 {[%csl Gb4][%cal Rc3b2]} 22. Nb3 Qc7 23. Be1 Rc4 24. Ba5 Qc6 25. Qg3 Rxc2 {[#] Strongly threatening ...Bf6.} 26. Rxd6 Qc4 27. Nd2 Qc5 $1 {Hoping for ...Bf6.} ({Much weaker is} 27... Qa4 $6 28. Bc3 $16) 28. Nb3 Qc4 $1 {White must now prevent ...Rxg2!} 29. Nd2 Qc5 $1 {aiming for ...Bf6.} 30. Nb3 Qc4 $1 {Threatens to win with ...Rxg2!} 31. Nd2 {Precision: White = 89%, Black = 93%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.25"]
[Round "7"]
[White "Wen, Yang"]
[Black "Lu, Shanglei"]
[Result "1-0"]
[ECO "B91"]
[WhiteElo "2585"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,73,18,8,13,12,6,6,7,12,22,19,22,17,28,29,25,20,27,3,7,22,46,46,46,46,46,54,52,56,64,55,67,69,87,90,90,89,85,86,97,89,118,124,140,134,172,162,196,172,336,335,869,846,29987,29988]} 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} Nxd5 10. Qxd5 Ra7 11. Be3 {LiveBook: 7 Games. The position is equal.} Rb7 12. Nc3 $146 ({Predecessor:} 12. O-O O-O 13. Qd3 Be6 14. b3 Nd7 15. Nc3 Nf6 16. a4 Qb8 17. axb5 axb5 {1-0 (35) Vidit,S (2693)-Areshchenko,A (2652) Linares 2017}) 12... b4 13. Na4 Qc7 14. O-O O-O 15. b3 Bd7 16. Rfc1 Rc8 17. Rab1 h6 18. Qd2 a5 19. h4 Bxa4 20. bxa4 Nd7 21. Bf1 Rbb8 22. c3 bxc3 23. Rxb8 Nxb8 (23... cxd2 $2 {is the wrong capture.} 24. Rxc8+ Qd8 25. Rxd8+ $18) 24. Qd5 Nd7 {White should prevent ...Nf6.} 25. Ba6 Rf8 26. Qd3 Nc5 27. Rxc3 Qd8 28. Bxc5 dxc5 29. Qc2 Qc7 30. Bc4 g6 31. Rb3 Kg7 32. Qb2 Bf6 33. Rb7 Qc6 34. Bd5 Qxa4 $2 (34... Qd6 {was worth a try.} 35. Qb5 Bd8) 35. Qb6 $18 {[#] Strongly threatening Qe6.} Qd1+ $2 (35... Qe8 36. Qxa5 g5 37. hxg5 (37. Qxc5 gxh4 38. Qa7 hxg3 $18) 37... hxg5) 36. Kg2 Qg4 37. Qa7 {Precision: White = 91%, Black = 33%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.25"]
[Round "7"]
[White "Xu, Xiangyu"]
[Black "Bai, Jinshi"]
[Result "1/2-1/2"]
[ECO "D46"]
[WhiteElo "2574"]
[BlackElo "2586"]
[Annotator "TA"]
[PlyCount "63"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 34,63,25,14,13,13,13,13,18,18,13,6,5,3,8,0,6,7,11,8,9,0,0,0,0,-3,0,0,0,-6,0,0]} 1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. Nc3 e6 {[%cal Be7e6,Be6e5][%mdl 32]} 5. e3 Nbd7 6. Qc2 Bd6 7. Bd3 O-O 8. O-O e5 9. cxd5 cxd5 10. e4 exd4 11. Nxd5 Nxd5 12. exd5 h6 13. Nxd4 Qh4 {D46: Semi-Slav: 5 e3 Nbd7 6 Bd3, Black avoids the Meran} 14. Nf3 Qh5 15. Bh7+ Kh8 16. Qf5 Qxf5 17. Bxf5 Nf6 18. Bxc8 {LiveBook: 27 Games} Rfxc8 {The position is equal.} 19. Rd1 Rd8 20. Be3 Be7 21. d6 Rxd6 {[#]} 22. Re1 $146 {[#] And now Bc5 would win.} Re6 23. Nd4 Re5 24. Nf3 Re6 25. Bd4 Rxe1+ 26. Rxe1 Nd5 27. a3 a6 28. g3 Kg8 29. Kg2 Rc8 30. Re5 Rd8 31. Re2 Rc8 32. Re5 {Precision: White = 57%, Black = 82%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.25"]
[Round "7"]
[White "Fang, Yuxiang"]
[Black "Liu, Guanchu"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2502"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "62"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 40,62,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Ba6 5. b3 Bb4+ 6. Bd2 Be7 7. Bg2 c6 8. O-O d5 9. Ne5 Nfd7 10. Nxd7 Nxd7 11. Bc3 O-O 12. Nd2 Rc8 13. e4 c5 14. exd5 exd5 15. dxc5 dxc4 16. c6 cxb3 17. Re1 {E15: Queen's Indian: 4 g3 sidelines, 4 g3 Ba6 and 4 g3 Bb7 early deviations} Bb5 18. Nxb3 {[%cal Bd2b3,Bb3d4,Bd4f5][%mdl 32]} Bxc6 19. Bxg7 Kxg7 20. Nd4 Bxg2 21. Nf5+ {LiveBook: 6 Games. The position is equal.} Kh8 22. Rxe7 Bh3 $1 {[%cal Rh3f5]} 23. Qd4+ {[#]} (23. Rxd7 $2 Qf6 $19) 23... Ne5 $1 {[%mdl 512]} 24. Qxe5+ $40 {[%mdl 128] White attacks.} f6 {[#]} 25. Qe2 $146 {Threatening mate with Rxh7+!} Bxf5 26. Rd1 {[#]} Bg4 $1 {[%cal Rg4e2][%mdl 512] [#]} 27. Rxh7+ $1 {[%mdl 512]} (27. Qxg4 Qxe7) 27... Kxh7 28. Qxg4 Qe8 $1 {Strongly threatening ...Rd8.} (28... Qe7 $6 29. Rd7 $16) 29. Rd7+ Rf7 $1 ({Stronger than} 29... Kh6 30. Qg7+ (30. Qh4+ Qh5 $18) 30... Kh5 31. Qh7+ Kg4 32. Rg7+ Kf3 33. Qd3+ Qe3 34. Qxe3# (34. fxe3 Rc1+ 35. Qf1+ Rxf1+ 36. Kxf1 Rc8 $11)) 30. Qh5+ Kg8 31. Qg6+ Kf8 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.25"]
[Round "7"]
[White "Xu, Jun"]
[Black "Zhou, Jianchao"]
[Result "0-1"]
[ECO "E01"]
[WhiteElo "2501"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "46"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,46,23,22,29,12,21,20,29,28,22,0,0,-8,0,-2,9,0,0,0,8,0,0,0,0,0,7,-6,0,-25,-16,-48,-42,-634,-630,-632,-631]} 1. d4 d5 2. c4 e6 3. Nf3 Nd7 4. g3 Bb4+ 5. Nbd2 Ngf6 6. Bg2 O-O 7. O-O {LiveBook: 17 Games. E01: Catalan: Early deviations} b6 (7... h6 8. Qc2 c5 9. a3 Bxd2 10. Bxd2 dxc4 11. Rfd1 b5 12. a4 Ba6 13. dxc5 Nxc5 14. Bxh6 Qc8 15. axb5 {1-0 (48) Xu,X (2545)-Rohde,M (2388) chess.com INT 2018}) 8. Qa4 Bd6 $146 ({Predecessor:} 8... c5 9. a3 Bxd2 10. Bxd2 Bb7 11. cxd5 Bxd5 12. Bg5 cxd4 13. Qxd4 h6 14. Bxf6 Nxf6 {1-0 (53) Maki Uuro,M-Leino,J Salo 1993}) 9. b4 {The position is equal.} dxc4 10. Nxc4 Bb7 11. Nxd6 cxd6 12. Bf4 Qb8 13. Rfc1 h6 14. Ne1 e5 15. dxe5 dxe5 16. Be3 Rd8 17. Rd1 Bxg2 18. Nxg2 Qb7 19. Rac1 Nf8 20. Qb5 Nd5 21. Rd3 a6 22. Qc4 $2 {[%mdl 8192] [#]} (22. Qa4 $15) 22... Nxe3 $19 23. Nxe3 Rdc8 {Precision: White = 40%, Black = 78%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.25"]
[Round "7"]
[White "Wang, Chen"]
[Black "Xu, Yi"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2495"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,59,-8,-2,-2,-2,-14,-13,-18,-18,-18,-18,-9,-8,-9,-11,-17,0,-8,6,-13,0,0,14,0,7,0,0,0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0]} 1. b3 e5 2. Bb2 Nc6 3. e3 g6 4. Bb5 Bg7 (4... Nge7 5. d4 exd4 6. Bxd4 Nxd4 7. Qxd4 Rg8 8. Qd2 c6 9. Bd3 Bg7 10. c3 d5 11. Ne2 Bf5 12. O-O {½-½ (72) Mamedyarov,S (2799)-Le,Q (2737) Huaian 2017}) 5. Bxc6 bxc6 {The position is equal.} 6. f4 {A01: Nimzowitsch-Larsen Opening} f6 $146 {[%cal Bf7f6,Bf6e5][%mdl 32]} ({Predecessor:} 6... Qh4+ 7. g3 Qe7 8. Bxe5 Bxe5 9. fxe5 Qxe5 10. Nc3 f5 11. Qf3 Nf6 12. Qf4 Qxf4 13. exf4 {0-1 (32) Hock,G (2031)-Wolf,U (2166) Hofheim 2017}) 7. Ne2 Nh6 8. fxe5 fxe5 {[#] Strongly threatening ...0-0.} 9. O-O d6 10. Qe1 Nf7 11. d3 O-O 12. e4 c5 13. Nd2 Be6 14. Nc4 Qd7 15. Ne3 c6 16. Qg3 Nh6 17. h3 Qe7 18. Rxf8+ Rxf8 19. Rf1 Rxf1+ 20. Nxf1 Nf7 21. Bc1 Bf6 22. Ne3 Bh4 23. Qf3 Bg5 24. Nf1 Bh4 25. Ne3 Bg5 26. Nf1 Bh4 27. Ne3 Bg5 28. Nf1 Bh4 29. Ne3 Bg5 30. Nf1 {Precision: White = 71%, Black = 73%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.25"]
[Round "7"]
[White "Liu, Yan"]
[Black "Zeng, Chongsheng"]
[Result "1-0"]
[ECO "A84"]
[WhiteElo "2481"]
[BlackElo "2542"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,111,34,31,35,27,39,32,39,48,54,49,52,41,49,38,30,28,43,38,64,46,56,69,60,64,58,52,62,36,87,74,102,94,127,123,135,118,138,87,330,320,412,398,415,394,508,498,506,489,479,508,507,509,501,489,499,496,503,443,652,539,800,792,1452,778,741,745,713,693,1204,912,1700,1555,1266,1264,1173,1170,1144,1135,977,951,1728,1685,1451,1243,2105,1997,12845,12841,12841,12840]} 1. Nf3 d5 2. e3 c6 3. c4 e6 4. b3 f5 5. Be2 Nf6 6. O-O Bd6 7. d4 Qe7 8. Bb2 O-O 9. Qc1 {A84: Dutch Defence: 2 c4 Miscellaneous} Bd7 10. Ba3 Be8 11. Bxd6 Qxd6 12. Ne5 {LiveBook: 4 Games} Nbd7 13. Qb2 {[#]} Qc7 $146 ({Predecessor:} 13... Bh5 14. f3 Qe7 15. Nxd7 Nxd7 16. Nc3 a6 {½-½ (34) Eljanov,P (2720)-Izoria,Z (2610) Dresden 2008}) 14. Nxd7 Qxd7 15. Nd2 Qe7 16. b4 Ne4 17. f3 Bh5 18. Rfe1 Nf6 19. Bd3 Rad8 20. Rab1 Be8 21. c5 g5 22. b5 cxb5 23. Bxb5 Bxb5 24. Qxb5 Rd7 25. Qa4 a6 ({Better is} 25... Ra8 $1 $14) 26. Rb6 $16 Rc7 27. Reb1 e5 28. dxe5 Qxe5 29. Qd4 Qe7 30. Nb3 ({White should play} 30. Nf1) 30... Kf7 $2 {[#]} (30... Rc6 $16) 31. Na5 $18 Kg6 32. Nxb7 Re8 33. Kf2 f4 34. exf4 {White is clearly winning.} Qe2+ 35. Kg1 Qe3+ 36. Qxe3 Rxe3 37. fxg5 Kxg5 38. Rd6 Rce7 39. Nd8 Re2 40. c6 Kf5 (40... Ne8 $142) 41. Rc1 Re1+ 42. Rxe1 Rxe1+ {[%mdl 4096] Endgame KRN-KRN} 43. Kf2 {[#] Strongly threatening c7.} Rc1 44. g4+ Kg6 45. h4 {[%cal Bh2h4,Bh4g5][%mdl 32]} h6 46. Kg3 Rc3 47. Kf4 Kg7 48. g5 hxg5+ 49. hxg5 Ne8 50. Rxd5 Kg6 51. Kg4 Rc2 52. f4 {[%cal Bf3f4,Bf4f5][%mdl 32]} Rg2+ 53. Kf3 Rxa2 54. Ne6 Rc2 55. f5+ Kh5 56. Rd8 {Precision: White = 88%, Black = 30%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.26"]
[Round "8"]
[White "Lu, Shanglei"]
[Black "Liu, Yan"]
[Result "0-1"]
[ECO "C65"]
[WhiteElo "2640"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,92,0,0,0,0,0,6,-11,21,-23,8,-17,25,4,0,0,0,0,19,6,7,0,14,0,8,0,44,21,25,33,45,39,36,8,22,11,47,54,79,74,133,66,58,13,68,70,77,71,64,57,116,110,120,106,110,108,103,102,127,19,11,-76,-81,-61,0,-162,-162,-558,-482,-29966,-12844,-29988,-29989]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 O-O 6. O-O d6 7. Nbd2 Bb6 8. h3 {C65: Ruy Lopez: Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5} Ne7 9. d4 c6 10. Bd3 Ng6 11. Re1 Re8 {LiveBook: 19 Games} 12. Qc2 Nh5 13. Nc4 Nhf4 14. Bf1 {[#]} Qf6 $146 ({Predecessor:} 14... Bc7 15. Be3 {1-0 (49) Movsesian,S (2679)-Ghaem Maghami,E (2566) Moscow 2017}) 15. dxe5 dxe5 (15... Nxh3+ $5 16. gxh3 Qxf3 17. Nxb6 axb6 $11) 16. Nh2 h5 17. a4 Bc7 18. Kh1 Be6 19. Be3 b6 20. b4 Nf8 21. Red1 Red8 22. Nd2 g5 23. a5 N8g6 24. axb6 axb6 25. Nc4 b5 26. Na5 Rxd1 27. Qxd1 Kg7 28. Nb7 Rxa1 29. Qxa1 g4 30. hxg4 hxg4 (30... Bxg4 $142 31. g3 (31. Nxg4 hxg4 32. Kg1 Nh4 $11) 31... Ne6) 31. Qd1 (31. Nc5 $16) 31... Bc8 $14 32. Na5 Qe6 (32... Nh4 $1 $11) 33. g3 Nh5 $1 34. Qc2 Nf6 35. c4 Bxa5 ({Black should play} 35... Qd7 $14) 36. bxa5 $16 Ba6 {[%cal Rb5c4]} 37. cxb5 cxb5 38. Kg1 b4 39. Qb1 b3 40. Bg5 (40. Bxa6 $16 Qxa6 41. Qxb3) 40... Nh7 $1 $11 {[#] aiming for ...Bxf1.} 41. Bd8 (41. Bd2 $11 {keeps the balance.} Qd6 42. Qd1 (42. Qxb3 Qxd2 43. Bxa6 Qxa5 $14)) 41... Bxf1 $17 42. Nxf1 {next Ne3 is good for White.} Qc4 (42... Qd6 $1 $15 43. Bh4 Qa3) 43. Bb6 $2 {[#]} (43. Ne3 $11 Qc3 44. a6) 43... Ng5 $1 $36 {[%mdl 2048] Keeping White busy.} 44. Ne3 $2 (44. Be3 {was the crucial defense.} Qxe4 45. Qxe4 Nxe4 46. a6) 44... Qe2 45. Qf1 (45. Qxb3 $19 Nh3+ 46. Kh2) 45... Qxf1+ 46. Nxf1 b2 {Precision: White = 28%, Black = 50%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.26"]
[Round "8"]
[White "Zhou, Jianchao"]
[Black "Liu, Guanchu"]
[Result "1-0"]
[ECO "E45"]
[WhiteElo "2616"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,95,34,35,29,21,16,12,32,-7,-17,-13,11,0,6,0,5,0,2,0,-3,0,16,10,16,21,14,24,138,139,139,142,144,160,133,126,147,109,116,112,125,70,75,77,63,70,108,116,107,100,123,106,154,133,112,73,79,70,129,75,72,75,66,74,76,67,77,74,91,90,86,75,82,69,64,65,256,256,277,277,275,271]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Nge2 Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 {[%cal Bb2b3,Bb3c4,Bc4c5][%mdl 32]} Nc6 {E45: Nimzo-Indian: Rubinstein: 4...b6 5 Ne2 Ba6} (8... O-O 9. a4 Nc6 10. Ba3 Re8 11. Be2 dxc4 12. O-O Nd5 13. Rc1 Na5 14. b4 Nb3 15. Rc2 c6 16. b5 cxb5 17. axb5 {0-1 (46) Tregubov,P (2579)-Safarli,E (2680) Zuerich 2017}) 9. Be2 {LiveBook: 9 Games} dxc4 10. bxc4 Na5 {The position is equal.} 11. Qa4+ $146 ({Predecessor:} 11. O-O O-O 12. Qa4 Qd7 13. Qxd7 Nxd7 14. Nb5 Rfc8 15. Rb1 Nf6 16. Bd2 {1-0 (32) Kashlinskaya,A (2432)-Ustich,E (2009) Kaliningrad 2015}) 11... Qd7 12. Nb5 c6 13. Nc3 {[%cal Bb5c3,Bc3e2,Be2f4][%mdl 32]} Rc8 14. c5 Bxe2 15. Nxe2 Qd5 16. Nf4 $36 {[%mdl 2048] White fights for an advantage.} Qc4 17. Qxc4 Nxc4 18. Nd3 bxc5 19. Nxc5 Nd7 20. Rb1 Nxc5 21. dxc5 Kd7 (21... O-O $11 {remains equal.}) 22. Rb4 $16 Ne5 {Black wants to play ...Nd3+.} 23. Ke2 $1 Kc7 24. Bb2 Nd7 25. Bxg7 Rhg8 26. Bd4 Rxg2 27. Rhb1 Kd8 28. Rb7 ({Better is} 28. Bc3 $16) 28... Rc7 $14 29. Bc3 $1 {[%cal Rc3a5]} Rxb7 30. Rxb7 $16 {[%mdl 4096] Endgame KRB-KRN} a6 31. Ra7 Nxc5 32. Bb4 Rg5 33. Rxf7 h5 34. Ra7 Rd5 35. f3 {aiming for e4.} Nb3 36. e4 Rd4 (36... Rd7 $14 37. Rxa6 c5) 37. Rxa6 (37. Ke3 $142 $1) 37... c5 38. Bc3 Nc1+ 39. Kf2 Rd3 40. Be5 Kd7 $1 41. a4 Rd2+ 42. Kg3 Ne2+ 43. Kh4 $1 Nd4 44. Rd6+ Ke7 45. Kxh5 {Strongly threatening h4.} Ra2 $2 {[#]} (45... Rg2 $14) 46. Kg4 $1 $18 {White has a decisive advantage.} Rg2+ {[#]} 47. Kf4 $1 Rxh2 48. Rb6 {Precision: White = 74%, Black = 60%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.26"]
[Round "8"]
[White "Bai, Jinshi"]
[Black "Wang, Chen"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2586"]
[BlackElo "2495"]
[Annotator "TA"]
[PlyCount "131"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 22,131,45,35,50,35,91,75,106,45,107,102,124,77,84,73,108,102,84,103,99,99,100,104,105,102,104,103,103,102,162,144,92,100,252,260,262,187,186,170,185,168,171,164,164,172,172,139,154,147,156,149,153,119,283,283,276,0,0,0,276,276,270,261,281,48,56,0,274,248,294,263,279,262,491,220,196,108,108,108,108,108,900,108,889,889,875,857,864,864,864,864,805,539,743,127,127,0,695,630,1180,223,1414,1414,1414,1208,5461,5461,29983,4637,29986,29987]} 1. d4 d5 2. c4 e6 3. Nf3 Nf6 {[%cal Bg8f6,Bf6d5,Bd5b4][%mdl 32]} 4. g3 c5 5. cxd5 Nxd5 6. Bg2 cxd4 7. O-O Be7 8. Nxd4 O-O 9. e4 Nb4 10. Nc3 N8c6 11. Nxc6 Nxc6 12. Be3 {LiveBook: 14 Games} e5 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4} (12... Qa5 13. Qb3 b6 14. Rfd1 Ba6 15. Rd7 Bc5 16. Bxc5 bxc5 17. Qa4 Qb6 18. Rad1 Ne5 19. R7d6 Qxb2 20. Qb3 Qxb3 21. axb3 {½-½ (34) Matlakov,M (2709)-Esipenko,A (2571) Moscow 2018}) 13. Nd5 Bg5 $146 ({Black should play} 13... Nb4 $14) ({Predecessor:} 13... Be6 14. Rc1 Bd6 15. Qd2 Qa5 16. Qxa5 Nxa5 17. Rfd1 Rfc8 18. Rxc8+ Bxc8 19. Nf6+ gxf6 20. Rxd6 {1-0 (42) Kucuksari,K (2200)-Celebi,O (1845) Manavgat 2016}) 14. f4 $16 Bh6 {White is better.} 15. Qb3 (15. Bc5 $16) 15... Qa5 (15... exf4 $1 $14 16. Bc5 (16. gxf4 Ne7 $16) (16. Nxf4 Qe7 $14) (16. Bxf4 Bxf4 17. gxf4 Na5 $14) 16... Re8) 16. Rac1 Re8 17. h3 exf4 18. gxf4 Be6 19. Qxb7 Rab8 20. Qxc6 Bxd5 21. Qxd5 Qxd5 22. exd5 Rxe3 23. d6 $1 {[%cal Bd5d6,Bd6d7][%mdl 32] Hoping for d7.} Rd3 24. Rcd1 $1 {[%cal Rd1d3]} Rxd1 25. Rxd1 {Strongly threatening d7.} Bxf4 {[%mdl 4096] Endgame KRB-KRB} (25... Rd8 $16) 26. d7 $18 Bg5 27. Re1 {Threatening mate with Re8+.} Rf8 $2 (27... Kf8 $16) 28. Re8 g6 29. Kf2 f5 30. Ke2 h5 31. b4 Bd8 32. Bf3 Kf7 33. Bd5+ Kg7 34. Be6 g5 35. Bxf5 Rxf5 36. Rxd8 $16 {KR-KR} Rd5 37. Ke3 Kf7 $2 (37... Kf6 $16 38. Ke4 Ke6) 38. Ke4 $18 Rd2 39. Kf5 Rd5+ 40. Ke4 Rd2 $1 {[#]} 41. Rh8 $1 Rxd7 42. Rh7+ ({Less strong is} 42. Rxh5 Kg6 $16) 42... Ke6 43. Rh6+ $2 (43. Rxh5 $18 {Black must now prevent Rh6+.} Rf7 44. Rxg5) 43... Kf7 $14 44. Rh7+ $2 (44. Rxh5 $14 Kg6 45. Rh8) 44... Ke6 $18 45. Rxh5 Rd2 46. Rh6+ ({Not} 46. Rxg5 Rxa2 47. Ra5 Re2+ 48. Kf4 Rf2+ 49. Kg5 Rg2+ 50. Kf4 Rf2+ 51. Kg5 Rg2+ 52. Kf4 Rf2+ $16) 46... Kd7 47. Ra6 Rh2 $2 (47... Kc7 48. Rxa7+ Kb6) 48. Kf5 (48. a4 $142 Rxh3 49. Kd5) 48... Rxh3 49. Kxg5 (49. Rxa7+ $18 Kc8 50. Kxg5) 49... Kc7 $16 50. Rxa7+ Kb6 51. Ra5 Rf3 $2 {[%mdl 8192] [#]} (51... Rc3 $16 52. Kf5 Rh3) 52. Kg4 $2 (52. a4 $1 $18 Rb3 53. Rb5+ Ka6 54. Kf5) 52... Rf2 $2 {[%mdl 8192]} (52... Rd3 $16) 53. Kg3 $18 Rf1 54. Kg2 Rf4 55. a3 Rf8 56. Kg3 Rf1 57. Kg4 Rf2 58. Rf5 $2 (58. a4 $18 Rb2 59. Rb5+ Ka6 60. Kf5) 58... Ra2 $16 59. Ra5 $2 {[%mdl 8192]} (59. Rf3 $16) 59... Rf2 $1 $18 60. a4 Ra2 61. Kf5 $2 (61. Kf3 Rb2 62. Rb5+ Ka6 63. Ke4) 61... Ra1 $2 (61... Rh2 62. Re5 Ka6 63. Re6+ Kb7 64. Re7+ Ka8) 62. Ke6 Ra2 63. Kd6 Ra1 64. Rb5+ Ka6 65. Kc6 (65. Kc7 $142 Rxa4 66. Rb6+ Ka7 67. b5 Ra2 68. Rb7+ Ka8 69. Rb8+ Ka7 70. b6+ Ka6 71. Ra8+ Kb5 72. Rxa2) 65... Rxa4 66. Rb7 {Precision: White = 46%, Black = 33%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.26"]
[Round "8"]
[White "Zeng, Chongsheng"]
[Black "Fang, Yuxiang"]
[Result "1/2-1/2"]
[ECO "D15"]
[WhiteElo "2542"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,80,12,19,-77,-70,-59,-22,-18,-23,-26,15,5,17,11,12,8,8,0,35,0,0,-19,-22,-22,-22,-38,-25,-35,0,0,0,-10,-14,-6,0,-26,-38,-32,0,-47,-41,-86,-78,-106,-98,-64,-16,-243,-243,-257,-245,-248,-244,-227,-219,-538,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 a6 5. Ne5 Nbd7 6. Bf4 dxc4 7. Nxc4 b5 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4} 8. Ne5 Bb7 {LiveBook: 82 Games} 9. Qb3 $146 (9. e3 $11) ({Predecessor:} 9. e3 e6 10. Be2 Be7 11. O-O O-O 12. Bf3 Nd5 13. Bg3 Rc8 14. a4 Nxe5 15. Bxe5 {½-½ (39) Li,C (2751)-Movsesian,S (2653) Huaian 2016}) 9... e6 $1 $17 {Black is better.} 10. Rd1 Be7 11. e4 O-O (11... Nxe5 {keeps more tension.} 12. Bxe5 O-O 13. Be2 c5 14. O-O cxd4 15. Bxd4 Qc7) 12. Be2 Qc8 13. O-O c5 14. Nxd7 Nxd7 15. d5 c4 16. Qc2 e5 17. Bg3 Bd6 18. Bg4 Qc7 19. Bxd7 Qxd7 20. Ne2 f6 21. f4 Qe7 22. fxe5 fxe5 23. Kh1 Rxf1+ 24. Rxf1 Rf8 25. Re1 Bc8 26. h3 h5 27. Ng1 Bc5 {...Qg5 is the strong threat.} 28. Re2 {[%cal Be1e2,Be2g2,Bg2g3][%mdl 32] [#]} Qf6 $1 29. Qd2 {[#]} h4 $1 $36 {[%cal Rh4g3][%mdl 2048] Black is really pushing.} 30. Bh2 b4 31. Nf3 $2 {[#]} (31. Re1 $11 {and White has nothing to worry.}) 31... Bxh3 $1 $19 {[%mdl 512] Threatens to win with ...Bg4.} 32. Bxe5 {[#]} (32. gxh3 Qxf3+) 32... Bxg2+ $1 {[%mdl 512]} 33. Rxg2 Qxf3 34. Kh2 Rf7 35. d6 $2 (35. Qe2 {nothing else works.} Qxe2 36. Rxe2) 35... h3 $2 (35... Qxe4 $19 36. Qg5 Be3) 36. Rg3 $11 {The position is equal.} Qf1 37. Qd5 {White wants to mate with Rxg7+.} Qe2+ 38. Kxh3 Qh5+ 39. Kg2 {White threatens Rxg7+ and mate.} Qe2+ 40. Kh3 {Threatening mate with Rxg7+.} Qh5+ {Precision: White = 37%, Black = 45%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.26"]
[Round "8"]
[White "Xu, Yi"]
[Black "Wen, Yang"]
[Result "1/2-1/2"]
[ECO "B15"]
[WhiteElo "2522"]
[BlackElo "2585"]
[Annotator "TA"]
[PlyCount "39"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,39,56,41,52,50,63,58,61,52,60,55,54,59,65,58,62,61,70,43,63,0,69,0,56,0,67,0]} 1. e4 g6 2. d4 c6 3. Nc3 Bg7 4. f4 d5 5. e5 Nh6 6. Nf3 O-O 7. Bd3 {B15: Caro-Kann: 3 Nc3: 3...g6 and 3...dxe4 4 Nxe4 Nf6 5 Nxf6+ exf6} f6 8. h3 {LiveBook: 7 Games} b6 $146 ({Predecessor:} 8... Nf5 9. Bxf5 Bxf5 10. Qe2 Na6 11. g4 Bc8 12. Be3 b5 13. Qg2 Qb6 14. O-O-O b4 15. Na4 {1-0 (41) Kravtsiv,M (2623)-Iordachescu,V (2600) Al Ain 2015}) 9. Ne2 Ba6 10. Be3 e6 11. O-O Qe7 12. c3 Bxd3 13. Qxd3 Nd7 14. g4 Nf7 15. Ng3 c5 16. Qa6 Nb8 17. Qd3 Nd7 $1 18. Qa6 Nb8 19. Qd3 Nd7 $1 20. Qa6 {Precision: White = 53%, Black = 62%.} (20. Rae1 $14) 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.26"]
[Round "8"]
[White "Xu, Jun"]
[Black "Xu, Xiangyu"]
[Result "1/2-1/2"]
[ECO "A81"]
[WhiteElo "2501"]
[BlackElo "2574"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,92,27,11,8,6,12,14,61,58,78,34,33,33,32,26,108,90,89,8,8,9,33,0,0,-23,-25,-37,-25,-35,-14,-191,-100,-98,-102,-97,-96,-93,-27,-20,-19,-21,-43,-52,-52,-53,-55,-53,-53,-60,-39,-36,-43,-42,-43,-45,0,0,0,0,0,-36,12,12,9,0,0,0,3,0,846,0,0,0,0,0,0]} 1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. Nf3 Bg7 5. O-O O-O 6. b3 b6 7. Bb2 Bb7 8. c4 e6 9. Nc3 Ne4 10. Rc1 {LiveBook: 4 Games. A81: Dutch Defence: 2 g3} Qe7 $146 ({Predecessor:} 10... d6 11. Nxe4 Bxe4 12. Ne1 Bxg2 13. Nxg2 Nd7 14. Qd3 Qe7 15. e4 Nc5 16. dxc5 Bxb2 17. cxd6 Qxd6 18. Qxd6 cxd6 {½-½ (30) Sundararajan,K (2422)-Piorun,K (2651) Karlsruhe 2017}) 11. d5 Na6 12. Nd2 {[%cal Bf3d2,Bd2c4,Bc4e3][%mdl 32]} Nd6 13. Ba3 e5 14. b4 {Threatens to win with c5.} e4 15. c5 Nf7 {[%cal Rb6c5]} 16. Nc4 bxc5 (16... Rfd8 $11) 17. bxc5 $16 Nxc5 18. d6 ({White should play} 18. Na5 $16 Rab8 19. Nxe4 fxe4 20. Bxc5) 18... cxd6 $11 19. Nb5 $1 {[%cal Rc4d6]} d5 20. Ne3 (20. Ncd6 $5 Nxd6 21. Bxc5 $11) 20... d6 21. Nxd5 Qe5 22. Ne3 Rfd8 23. Nc4 Qd5 {[#]} 24. Qe1 $2 {[#]} (24. Nbxd6 $1 $11 {[%mdl 512] and White has nothing to worry.} Nxd6 (24... Rxd6 25. Nxd6) 25. Nxd6 Qxd6 26. Qxd6 Rxd6 27. Bxc5) 24... Nd3 ({Better is} 24... Ne6 $1 $19 25. Nc7 Nxc7) 25. exd3 $17 Qxb5 26. Rb1 Qa6 27. Bb2 Bd5 (27... Bxb2 $17 28. Rxb2 d5) 28. Bxg7 $11 {And now Bf6 would win.} Bxc4 29. dxc4 Kxg7 30. Qc3+ Ne5 31. f4 exf3 $1 ({Much weaker is} 31... Qxc4 $6 32. Qa1 $11) 32. Bxf3 Rab8 33. Bd5 Qc8 34. Rb3 Qc5+ 35. Kg2 Rdc8 {Strongly threatening ...Rxb3.} 36. Rfb1 Rxb3 37. Rxb3 Rc7 38. Qb2 g5 39. Rb8 Kh6 40. Rf8 f4 $132 {[%mdl 2048] Black is not keeping still} 41. Qb8 Ng6 42. Rf6 Kg7 43. Qd8 Qe3 $2 {[%mdl 8192]} (43... g4 $11 44. gxf4 (44. Rxd6 f3+ 45. Kf1 Ne7 $11) 44... Qb6) 44. Rxg6+ $2 (44. Qxc7+ $18 Kh6 45. Bf3 Qd2+ 46. Kh3 g4+ 47. Bxg4) 44... Kxg6 {The position is equal.} 45. Qxd6+ Kf5 {...Qe2+ is the strong threat.} 46. Qxc7 Qe2+ {Precision: White = 52%, Black = 48%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.27"]
[Round "9"]
[White "Wen, Yang"]
[Black "Bai, Jinshi"]
[Result "1/2-1/2"]
[ECO "B11"]
[WhiteElo "2585"]
[BlackElo "2586"]
[Annotator "TA"]
[PlyCount "66"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,66,35,30,32,31,28,33,25,27,37,33,44,37,26,16,26,17,20,19,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-10,-3,-22,-8,-8,0,-6,0,0,0]} 1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Nxe4 Nf6 5. Qe2 Nxe4 6. Qxe4 Qd5 {B11: Caro-Kann: Two Knights Variation} 7. Qh4 Qe6+ 8. Be2 Qg4 9. Qg3 {LiveBook: 16 Games} g6 10. Ng5 Qxg3 11. hxg3 Bg7 $146 ({Predecessor:} 11... f6 12. Ne4 Bf5 13. d3 Nd7 14. Be3 {1-0 (32) Martirosyan,H (2586)-Melkumyan,H (2664) Batumi 2018}) 12. Bc4 e6 13. c3 c5 14. Ne4 Nd7 15. Bb5 b6 16. Nd6+ Ke7 {The position is equal.} 17. Nxc8+ Raxc8 18. d3 h5 19. a4 a5 20. Ke2 Nf6 21. Ba6 Ra8 22. Bb7 Rab8 23. Bf3 Bh6 24. Bxh6 Rxh6 25. g4 {[#] Black must now prevent g5.} g5 {[%cal Bg6g5,Bg5g4][%mdl 32]} 26. g3 Rbh8 27. gxh5 g4 28. Bg2 Rxh5 29. Rhd1 Rd8 30. Rab1 Rd6 31. d4 cxd4 32. Rxd4 Rxd4 33. cxd4 b5 {Precision: White = 68%, Black = 73%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.27"]
[Round "9"]
[White "Xu, Xiangyu"]
[Black "Zhou, Jianchao"]
[Result "1/2-1/2"]
[ECO "A04"]
[WhiteElo "2574"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "60"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,60,-15,-3,-17,-18,-37,-14,-16,-22,-25,-22,-37,-28,-37,-20,-30,10,-2,0,-8,-8,-6,-8,-5,-5,-26,-7,-21,0,-22,-12,-16,0,0,0,0,0,0,0,-2,-2,-32,0,-37,-21,-21,-16,-16,0,-70,-70,-70,-70]} 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. d4 cxd4 5. Nxd4 e5 6. Nxc6 {A04: Unusual lines after 1 Nf3 and King's Indian Attack} dxc6 7. Qxd8+ (7. Nd2 Be7 8. b3 Be6 9. Bb2 Nd7 10. O-O O-O 11. e3 Qc7 12. Qe2 a5 13. a4 {½-½ (54) Nakamura,H (2787)-Karjakin,S (2763) Moscow 2018}) 7... Kxd8 8. Nd2 {The position is equal.} Nd5 9. Nc4 f6 10. Bd2 Be6 11. e4 $146 ({Predecessor:} 11. O-O-O Kc7 12. a3 Bc5 13. e3 {0-1 (24) Mojzis,J (2236)-Studnicka,T (2306) Czechia 2006}) 11... Nb6 12. Ne3 Nc4 13. Nxc4 Bxc4 14. Bf1 Be6 15. Be3 Kc7 16. f3 Rd8 17. Bd3 b6 18. Kf2 Bc5 19. Rhd1 Bxe3+ 20. Kxe3 Rd4 21. Be2 Rxd1 22. Rxd1 Rd8 23. Rxd8 (23. Rh1 {is interesting.} a5 24. a3 b5 25. f4 a4 26. h4) 23... Kxd8 $11 {[%mdl 4096] Endgame KB-KB} 24. Kd2 g5 ({Of course not} 24... Bxa2 $6 25. b3 $16) 25. g4 c5 ({But not} 25... Bxa2 $6 26. b3 $16) 26. c4 a5 27. a4 Bd7 28. b3 h6 29. h3 (29. Ke1 $11) 29... Ke7 $15 30. Ke3 Be6 {Precision: White = 57%, Black = 46%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.27"]
[Round "9"]
[White "Fang, Yuxiang"]
[Black "Lu, Shanglei"]
[Result "1/2-1/2"]
[ECO "D27"]
[WhiteElo "2502"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "90"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,90,25,34,40,1,20,0,0,-2,-4,0,0,-6,0,-7,14,0,0,0,0,0,0,-2,0,-93,-89,-92,-93,-87,-87,-82,-87,-89,-98,-100,-100,-100,-100,-100,-100,-100,-100,-100,-100,-94,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,-45,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. Nc3 dxc4 5. e3 a6 6. a4 c5 7. Bxc4 Nc6 8. O-O Be7 9. dxc5 Bxc5 10. Qxd8+ {D27: Queen's Gambit Accepted: Classical main line: 7 e4!? and 7 a4} Kxd8 11. e4 {LiveBook: 12 Games} h6 12. Bd2 $146 {White is slightly better.} ({Predecessor:} 12. h3 b6 13. Rd1+ Ke7 14. e5 Nd7 15. Bf4 g5 16. Bg3 Bb7 17. Ne4 Na5 {½-½ (76) Tregubov,P (2625)-Movsesian,S (2709) Rijeka 2010}) 12... b6 13. Rfd1 {Black must now prevent Bxh6+.} Ke7 14. e5 Nd7 15. Ne4 Bb7 16. Nxc5 bxc5 17. Bc3 $132 {[%mdl 2048] White puts up resistance} Nb6 18. b3 Nxc4 19. bxc4 Rhd8 20. Rdb1 Rab8 21. Rb2 {[#]} Nb4 $1 {[%mdl 512]} 22. Bxb4 (22. Nd2 $1 $11 {keeps the balance.}) 22... cxb4 $17 23. Rxb4 {Threatens to win with Rab1.} Bxf3 $1 24. Rxb8 Rxb8 25. gxf3 $11 {[%mdl 4096] Endgame [#] KR-KR} Rb4 $1 26. a5 g5 27. Rc1 {[#]} Ra4 $1 28. Rb1 Rxa5 29. Rb7+ Kf8 30. Ra7 Kg7 31. Kg2 Kg6 32. Kg3 h5 33. h4 $1 gxh4+ 34. Kxh4 Rxe5 35. Rxa6 Rc5 36. Ra4 e5 37. Rb4 f6 38. f4 e4 39. Rb5 {The position is equal.} Rxc4 40. Rxh5 Rc3 41. f5+ Kg7 42. Kg4 Rf3 43. Rh3 Rxf2 44. Re3 Kf7 45. Rxe4 Rf1 {Precision: White = 86%, Black = 76%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.27"]
[Round "9"]
[White "Wang, Chen"]
[Black "Xu, Jun"]
[Result "0-1"]
[ECO "B23"]
[WhiteElo "2495"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,51,-10,-27,-17,-13,-12,-10,0,-62,0,0,0,0,4,-6,0,-44,-33,-39,0,-140,-130,-133,-130,-179,-172,-172,-183,-233,-160,-474,-204,-552,-557,-508]} 1. e4 c5 2. f4 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. Nf3 g6 6. O-O Bg7 7. d3 Nc6 8. Nc3 Nf6 9. Kh1 {B23: Closed Sicilian: Lines without g3} (9. Bd2 O-O 10. Qe1 b5 11. Ne2 a5 12. f5 Nb4 13. Qd1 c4 14. Nf4 cxd3 15. cxd3 gxf5 16. exf5 Qxf5 {0-1 (41) Kislinsky,A (2481)-Navara,D (2732) Ostrava 2017}) 9... O-O 10. Qe1 {LiveBook: 3 Games} Nd4 11. Nxd4 {The position is equal.} cxd4 12. Ne2 Rac8 13. f5 $146 ({Better is} 13. Nxd4 $11 e5 14. Ne2) ({Predecessor:} 13. Nxd4 e5 14. Ne2 Rxc2 15. Qd1 Rc6 16. Nc3 Re8 17. f5 d5 18. Bg5 d4 19. Bxf6 dxc3 20. Bxg7 cxb2 21. Rb1 Kxg7 22. Rxb2 {½-½ (22) Zinn,L-Filipowicz,A Aarhus 1971}) 13... Rxc2 (13... d5 $15 14. e5 Ng4) 14. Nxd4 $11 Rcc8 15. Qh4 Nh5 16. Be3 d5 17. e5 Bxe5 18. g4 Nf6 19. Nf3 (19. Qg5 $11) 19... Bxb2 $17 20. Rab1 Rc2 21. Nd4 Bxd4 $1 22. Bxd4 Qa4 23. Rf4 {White wants to play fxg6.} Qa3 24. fxg6 $2 {[#]} (24. Qh3 $17 {is tougher.}) 24... fxg6 (24... Rc1+ $142 25. Kg2 Rxb1 26. Rxf6 fxg6 27. Rxf8+ Kxf8 28. Qxh7 Qxa2+ 29. Kg3 Qa6 30. Qg7+ Ke8 31. Qg8+ Kd7 32. Qxd5+ Qd6+ 33. Qxd6+ Kxd6 34. Bxa7 b5) 25. Qe1 $2 (25. Qg3) 25... Qxa2 $19 26. Bg1 {Precision: White = 28%, Black = 51%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.27"]
[Round "9"]
[White "Liu, Yan"]
[Black "Xu, Yi"]
[Result "1/2-1/2"]
[ECO "A13"]
[WhiteElo "2481"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,59,10,-3,6,11,10,0,0,0,0,0,-4,-7,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 e6 {[%cal Be7e6,Be6d5,Bd5d4][%mdl 32]} 3. b3 d5 4. Bb2 c5 5. e3 Nc6 6. cxd5 exd5 7. Bb5 Bd6 8. O-O O-O {A13: English Opening: 1...e6} (8... Bg4 9. h3 Bh5 10. Bxf6 Qxf6 11. Nc3 Qe6 12. Be2 O-O 13. Rc1 Rad8 14. Ng5 Qh6 15. Bxh5 Qxg5 16. f4 {1-0 (56) Svidler,P (2760)-Meier,G (2655) Germany 2017}) 9. Nc3 {LiveBook: 3 Games. The position is equal.} d4 10. Ne2 {[%cal Re3d4]} Bg4 11. Bxc6 bxc6 12. Ng3 h5 {[%cal Bh7h5,Bh5h4][%mdl 32] [#] ...h4! is the strong threat.} 13. h3 $146 ({Predecessor:} 13. exd4 h4 14. dxc5 Bc7 15. Bxf6 Qxf6 16. Ne4 Qf4 17. Nd6 h3 18. Re1 Bxd6 19. cxd6 hxg2 20. Kxg2 Rad8 21. Rc1 Rxd6 22. Rc4 Bxf3+ {0-1 (22) Wohl,A (2364)-Solomon,S (2404) Auckland 2013}) 13... h4 $1 {And now ...Bxf3 would win.} 14. Ne4 Bh5 15. Nxd6 Qxd6 16. Qc2 Bxf3 17. gxf3 Rfe8 18. Rac1 Re5 19. f4 Rd5 20. e4 {[%cal Be3e4,Be4d5][%mdl 32]} Qxf4 {[#] ( -> ...Rg5+)} 21. exd5 Ng4 $1 22. hxg4 Qxg4+ 23. Kh2 Qf4+ 24. Kh3 Qf3+ $1 25. Kh2 $1 Qf4+ 26. Kh3 Qf3+ $1 27. Kh2 $1 Qf4+ 28. Kh1 Qf3+ 29. Kh2 Qf4+ 30. Kh1 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.27"]
[Round "9"]
[White "Liu, Guanchu"]
[Black "Zeng, Chongsheng"]
[Result "0-1"]
[ECO "B01"]
[WhiteElo "2459"]
[BlackElo "2542"]
[Annotator "TA"]
[PlyCount "98"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,98,36,60,50,48,52,44,53,56,31,42,42,45,40,65,81,76,56,96,70,115,127,126,62,81,19,14,21,9,-16,-16,-16,-15,-17,-15,-18,-17,-18,-18,-82,-78,-84,-70,-75,-71,-125,-121,-115,-106,-106,-110,-138,-105,-104,-105,-135,-134,-132,-112,-112,-112,-112,-112,-112,-112,-128,-112,-112,-112,-112,-112,-112,-112,-179,-158,-158,-158,-158,-158,-158,-158,-1175,-1029,-982,-918,-1305,-448,-1381,-1528,-1316,-1218]} 1. e4 d5 2. exd5 Nf6 3. Bb5+ Nbd7 4. Nc3 a6 5. Be2 Nb6 {[%cal Bd7b6,Bb6d5,Bd5b4,Bb4d3][%mdl 32]} 6. d4 {B01: Scandinavian Defence} g6 7. Nf3 Bg7 8. O-O {White is slightly better.} O-O 9. Bf4 $146 ({Predecessor:} 9. h3 Nbxd5 10. Nxd5 Nxd5 11. c4 Nf6 12. Be3 c6 13. Qb3 {0-1 (45) Szabo,M (2298)-Gara,A (2373) Zalakaros 2017}) 9... Nfxd5 10. Nxd5 Nxd5 11. Be5 Bh6 12. Re1 Bf5 13. Bd3 Qd7 14. c4 {[#] Strongly threatening Bxf5.} Nb4 15. Bxf5 Qxf5 16. Re2 ({Better is} 16. Bg3 $16) 16... b5 $14 17. Qb3 (17. b3 $16) 17... Qd3 $11 18. Qxd3 Nxd3 19. cxb5 axb5 20. Bxc7 Rfc8 21. Bg3 ({But not} 21. Rxe7 Bf8 $17) 21... Rxa2 22. Rd1 $1 {[%cal Rd1d3]} ({Reject} 22. Rxa2 Rc1+ 23. Ne1 Nxe1 $17) 22... Nxb2 23. Rb1 Kf8 24. h4 (24. d5 $1 $11 {remains equal.}) 24... Rc1+ $17 25. Rxc1 Bxc1 26. d5 Ra1 {Threatens to win with ...Nd3.} 27. Kh2 (27. d6 $142 exd6 28. Bxd6+ Kg7 29. Be5+ f6 30. Bd4 Bf4+ 31. Ne1) 27... Nd3 28. Rc2 Bf4 29. Bxf4 Nxf4 {[%mdl 4096] Endgame KRN-KRN} 30. Rb2 Ra5 31. Nd4 Nxd5 {And now ...b4 would win.} 32. Rxb5 Rxb5 33. Nxb5 {KN-KN} h5 34. g3 e5 35. Kg2 Ke7 36. Na3 Ke6 37. Nc4 Ne7 38. Kf3 Nf5 39. Ke2 Kd5 40. Nb6+ Ke4 41. Nc8 (41. Nd7 $17 {was worth a try.}) 41... f6 {[%cal Bf7f6,Bf6f5,Bf5f4,Bf4g3][%mdl 32]} 42. Nb6 Nd4+ 43. Kf1 f5 44. Nd7 f4 45. Nf6+ $2 (45. gxf4 $17 Kxf4 46. Nf8) 45... Kf3 $19 {Black is clearly winning.} 46. Nd7 {[#]} Nc6 $1 47. Nf8 Ne7 (47... fxg3 $142 48. Ne6 Kg4 49. fxg3 Kxg3) 48. Nd7 (48. gxf4 $142 exf4 49. Nd7) 48... fxg3 {( -> ...g2+)} 49. Nxe5+ Kf4 {Precision: White = 50%, Black = 76%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.28"]
[Round "10"]
[White "Lu, Shanglei"]
[Black "Liu, Guanchu"]
[Result "1-0"]
[ECO "C24"]
[WhiteElo "2640"]
[BlackElo "2459"]
[Annotator "TA"]
[PlyCount "47"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,47,0,23,14,17,13,13,23,29,12,22,19,29,28,19,0,19,28,24,18,24,0,0,0,24,11,28,19,40,0,0,0,39,34,110,115,123,131,106,111]} 1. e4 e5 2. Bc4 Nf6 3. d3 c6 4. Nf3 d5 5. Bb3 a5 6. a4 {C24: Bishop's Opening: 2...Nf6} (6. a3 a4 7. Ba2 Bd6 8. exd5 cxd5 9. Bg5 Be6 10. Nc3 Ra5 11. O-O Nc6 12. Re1 O-O 13. h3 h6 {1-0 (26) Lu,S (2619)-Liu,G (2366) China 2016}) 6... Bb4+ 7. c3 Bd6 8. exd5 {The position is equal.} cxd5 9. Bg5 Be6 10. Na3 Nbd7 11. Nb5 Bb8 12. O-O O-O 13. Re1 {[#]} h6 $146 ({Predecessor:} 13... Re8) 14. Bh4 Re8 15. d4 {[%cal Rd4e5,Bd3d4,Bd4d5,Bd5d6][%mdl 32]} e4 16. Nd2 {[%cal Bf3d2,Bd2c4,Bc4e3][%mdl 32]} Ra6 17. c4 dxc4 18. Bxc4 Bf4 {Strongly threatening ...Bxd2.} 19. Bxe6 (19. b3 {seems wilder.} Qb8 20. Nf1 Bg4 21. Qc2 Rc6 22. Nc3) 19... Raxe6 {[#]} 20. d5 $1 $36 {[%mdl 2560] White is more active.} R6e7 (20... Re5 $5 {[%cal Re5d5]} 21. Nc4 g5 22. Nxe5 Rxe5 $11) (20... Nxd5 21. Bxd8) 21. Nc4 {Black must now prevent d6.} g5 ({Black should play} 21... e3 $14 22. fxe3 Bxe3+ 23. Nxe3 Rxe3) 22. d6 $16 Re6 23. Bg3 Nb6 24. Ne3 {Precision: White = 88%, Black = 61%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.28"]
[Round "10"]
[White "Zhou, Jianchao"]
[Black "Zeng, Chongsheng"]
[Result "1/2-1/2"]
[ECO "B01"]
[WhiteElo "2616"]
[BlackElo "2542"]
[Annotator "TA"]
[PlyCount "219"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,219,36,47,11,9,18,10,16,16,24,20,7,39,-8,13,13,10,10,11,18,1,6,16,18,18,18,29,34,62,58,63,40,44,44,45,51,55,21,62,37,123,123,120,122,169,166,202,120,120,116,111,111,105,63,117,0,142,127,131,98,84,22,41,0,0,0,0,0,23,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,6,0,0,0,0,0,0,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,0,8,8,11,8,8,8,8,0,20,20,20,20,20,20,20,20,20,20,27,0,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8]} 1. e4 d5 2. exd5 Nf6 3. Nf3 Qxd5 4. d4 Bg4 5. Be2 Nc6 6. h3 Bxf3 7. Bxf3 Qd7 {B01: Scandinavian Defence} (7... Qe6+ 8. Be3 Nd5 9. Qe2 Nxe3 10. fxe3 Qd7 11. Nd2 e6 12. O-O Be7 13. c3 O-O 14. b4 Rae8 15. Nc4 {½-½ (89) Grischuk,A (2750)-Vachier Lagrave,M (2795) chess.com INT 2017}) 8. c3 e5 {[%cal Re5d4] LiveBook: 15 Games} 9. Qb3 Na5 $146 ({Predecessor:} 9... e4 10. Be2 O-O-O 11. Nd2 h5 12. Nc4 Nd5 13. Bd2 f5 14. O-O-O Be7 15. Ne3 {0-1 (60) Felgaer,R (2420)-Gershon,A (2540) Linares 2001}) 10. Qc2 exd4 11. cxd4 Bb4+ 12. Nc3 O-O 13. O-O Qxd4 14. Ne2 Qc5 15. Qxc5 Bxc5 16. Bg5 Rfe8 17. Bxf6 gxf6 18. Rac1 Bd6 19. Ng3 Rad8 20. Rc2 Re6 21. Nf5 Bf4 22. g3 $36 {[%mdl 2048] White has the initiative.} Be5 $1 23. b4 Nc6 24. Bxc6 bxc6 25. Rfc1 Rd3 26. Rxc6 Ra3 27. R6c2 Rd3 (27... Rf3 $14 28. Nh6+ Kg7) 28. Kg2 h5 29. a4 a6 30. Rc4 $1 Kh7 {[#]} 31. R1c2 ({White should try} 31. Rh4 $1 $18 {[%cal Rh4h5]} Kg6 32. g4) 31... Kg6 $16 {[#]} 32. Nh4+ $1 Kh7 33. Rc5 Kh6 34. Ra5 Bc3 (34... Ra3 $14) 35. Rc5 Be5 $1 36. a5 Rb3 37. R2c4 Rb2 38. Rc6 (38. Rd5 $16) 38... Rxb4 39. Nf5+ Kg5 40. Ne3 Rxc4 41. Rxc4 $11 {[%mdl 4096] Endgame aiming for f4+. KRB-KRN} Kh6 42. Nd5 c6 43. Nb4 c5 44. Nd3 Rc6 45. Rxc5 Rxc5 46. Nxc5 {KB-KN} Bc3 47. Nxa6 Bxa5 48. Nc5 Kg6 49. Kf3 Kf5 50. Nd3 Bc7 51. Ne1 Bb6 52. Ng2 Ba7 53. h4 {Threatening Nf4.} Bb8 54. Ne3+ Kg6 55. Ke4 Ba7 56. f3 Bb8 57. Nf5 Ba7 58. Ne7+ Kg7 59. Kf5 Bf2 60. g4 Kf8 61. Nd5 hxg4 62. Kxg4 Kg7 63. Ne7 Be1 (63... Bc5 $5 {[%cal Rc5e7]} 64. Nf5+ Kg6 $14) 64. Nf5+ Kh7 65. h5 Bd2 66. Kg3 Kg8 67. Kf2 Bc1 68. Ke2 Kf8 69. Kd3 Bg5 70. Ke4 Bc1 71. Nd6 Kg7 72. Nf5+ Kf8 73. Ng3 Kg7 74. Kf5 Kh6 75. Kg4 Kg7 76. Ne4 Bb2 77. Nd6 Be5 78. Nf5+ Kh7 79. Kh3 Bf4 80. Kg2 Kg8 81. Kf1 Kf8 82. Ke2 Bc1 83. Kd1 Bf4 84. Kc2 Bg5 85. Kd3 Bc1 86. Kc4 Bd2 87. Kd5 Bc1 88. Kd6 Bf4+ 89. Kd7 Bc1 90. Kc6 Bd2 91. Kd5 Bc1 92. Ke4 Bd2 93. f4 Bc1 94. Nh6 Kg7 95. Ng4 Bd2 96. f5 Bg5 97. Kd5 Kf8 98. Kd6 Bf4+ 99. Kd7 Bg5 100. Kd8 Bf4 101. Nf2 Kg7 {The position is equal.} 102. Ke7 Kh6 103. Kxf6 Kxh5 104. Kxf7 Bg5 105. Ne4 Bh4 106. Nf6+ Kg5 107. Ke6 Kh6 108. Ne8 Kh7 109. f6 Bxf6 110. Nxf6+ {Precision: White = 68%, Black = 77%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.28"]
[Round "10"]
[White "Bai, Jinshi"]
[Black "Liu, Yan"]
[Result "1-0"]
[ECO "E00"]
[WhiteElo "2586"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "127"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,127,17,7,22,23,23,13,1,11,23,29,31,29,16,25,28,10,20,0,0,0,0,0,0,0,0,0,0,0,9,8,8,15,13,14,20,20,114,106,91,35,190,177,173,168,145,177,289,285,297,290,277,272,298,258,464,487,509,363,435,422,408,423,425,268,441,438,429,420,431,414,484,495,485,482,533,145,153,0,543,537,477,468,440,463,385,236,766,756,696,647,622,0,647,0,606,600,2342,1509,29988,29984,29984,29985,29990,29991,29991,29992,29992,29990,29990,29991]} 1. d4 Nf6 2. c4 e6 3. g3 Bb4+ 4. Nd2 c5 5. a3 Bxd2+ 6. Qxd2 cxd4 7. Nf3 b6 8. Bg2 {E00: Catalan Bogo-Indian (3 g3 Bb4+)} (8. b4 Bb7 9. Qxd4 d5 10. Bb2 dxc4 11. Qxc4 Nbd7 12. Bg2 Rc8 13. Qb3 Bd5 14. Qa4 O-O 15. O-O Qc7 {½-½ (31) Bok,B (2607)-Vidit,S (2718) Wijk aan Zee 2018}) 8... Bb7 9. Qxd4 Nc6 10. Qf4 {LiveBook: 6 Games. The position is equal.} Rc8 11. b4 Ne7 $146 ({Predecessor:} 11... Nh5 12. Qg4 Qf6 13. Rb1 Qg6 14. Qxg6 hxg6 15. Nd2 Nd8 16. e4 {1-0 (66) Hagen,A (2139)-Jablon,S (1931) Caleta 2012}) 12. Bb2 Ng6 13. Qd4 d5 14. cxd5 Qxd5 15. Qxd5 Bxd5 16. O-O O-O 17. Rfc1 Ne7 18. Bxf6 (18. Nd4 {with more complications.} Bxg2 19. Kxg2 Rfd8 20. a4 Ne4 21. a5) 18... gxf6 19. Nd4 Bxg2 20. Kxg2 f5 21. h3 Rfd8 22. e3 Kg7 23. g4 Kf6 24. f4 h6 25. Kf3 a6 26. a4 Rg8 27. b5 a5 (27... axb5 $11 28. axb5 Rxc1 29. Rxc1 Rc8) 28. Nc6 $1 $16 Ng6 29. Rg1 ({White should try} 29. Rc4 $16) 29... e5 $2 (29... Ne7 $14) 30. Rad1 $1 $18 {[%cal Rd1d6]} Rce8 31. Rd6+ Re6 32. g5+ hxg5 (32... Kg7 {might work better.} 33. Rxe6 fxe6) 33. fxg5+ Kg7 34. Rxe6 $1 fxe6 {[%mdl 4096] Endgame KRN-KRN} 35. Rd1 $1 e4+ 36. Kg3 e5 $2 (36... Rf8 37. Rd7+ Kg8 38. Ne7+ Kg7) 37. Rd7+ Kh8 38. Rd5 f4+ 39. Kf2 Re8 {[#]} 40. h4 $1 {[%mdl 512]} Nxh4 {intending ...Nf3.} 41. Rxe5 Rf8 $2 (41... Rxe5 42. Nxe5 Kh7 43. exf4 Nf5) 42. Rxe4 fxe3+ 43. Kxe3 Nf5+ 44. Kd3 Nd6 45. Re6 Nb7 {Strongly threatening ...Nc5+.} 46. Rh6+ Kg8 47. Rg6+ $2 (47. Ne7+ $18 {is more deadly.} Kg7 48. Rxb6 Nc5+ 49. Kd4 Nxa4 50. Rh6) 47... Kh7 $16 48. Rh6+ $2 (48. Ne7 $1 $16) 48... Kg8 $1 $18 49. Ne7+ Kg7 50. Rxb6 Nc5+ 51. Kd4 Nxa4 52. Ra6 Rd8+ $2 (52... Rf1 53. Rxa5 Rg1) 53. Nd5 Kf7 54. Rf6+ Kg7 55. Ra6 Kf7 56. Rf6+ Kg7 $1 57. b6 Rh8 58. Nf4 Rb8 59. b7 {White mates.} Rxb7 60. Ne6+ Kg8 {[#]} 61. g6 $1 {[%csl Ge6][%cal Rf6f8,Bg5g6,Bg6g7][%mdl 32]} Rb4+ 62. Ke3 {[%csl Ge6][%cal Rf6f8]} Rb3+ 63. Kd2 {[%csl Ge6][%cal Rf6f8]} Rb8 {[#]} 64. g7 $1 {Precision: White = 69%, Black = 46%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.28"]
[Round "10"]
[White "Xu, Xiangyu"]
[Black "Wang, Chen"]
[Result "*"]
[WhiteElo "2574"]
[BlackElo "2495"]
[Annotator "TA"]
[PlyCount "29"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,11,44,1]} 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nf6 6. g3 {Predecessor:} O-O $146 7. Bg2 Qc7 8. Nd5 Nxd5 9. cxd5 Qb6 10. Nb3 d6 11. O-O Qa6 12. Nd4 Qb6 13. Nb3 Qa6 14. Nd4 Qb6 15. Nb3 {½-½ (15) Hamitevici,V (2519)-Jones,G (2662) Heraklio 2017} *

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.28"]
[Round "10"]
[White "Xu, Xiangyu"]
[Black "Wang, Chen"]
[Result "1-0"]
[ECO "E65"]
[WhiteElo "2574"]
[BlackElo "2495"]
[Annotator "TA"]
[PlyCount "89"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,89,36,51,28,16,23,36,27,74,55,58,59,51,39,70,49,55,0,52,64,102,126,125,118,124,122,115,93,158,171,166,157,150,164,205,205,205,205,205,205,204,184,191,139,191,191,191,184,250,237,237,226,211,197,296,250,295,296,441,466,522,510,613,510,510,454,1377,1351,1294,1293]} 1. Nf3 c5 2. c4 g6 3. d4 cxd4 4. Nxd4 Bg7 5. Nc3 Nf6 6. g3 O-O 7. Bg2 d6 8. O-O Nbd7 9. b3 Nc5 10. Bb2 Rb8 11. Qd2 {E65: King's Indian: Fianchetto: 6...c5 7 0-0 without d5 by White} Bd7 {LiveBook: 3 Games} (11... a6 12. Rfd1 Bd7 13. Rac1 a5 14. Ba1 Rc8 15. Rb1 Bc6 16. Nxc6 bxc6 17. a3 Ncd7 18. b4 axb4 19. axb4 Ne5 20. c5 d5 {1-0 (42) Sosulin,E (2422)-Moiseev,V (2417) Dubna 2016}) 12. Rad1 a6 13. Rfe1 {The position is equal.} Qc7 $146 ({Predecessor:} 13... b5 14. cxb5 axb5 15. b4 Ne6 16. Nc6 Bxc6 17. Bxc6 Qb6 18. Bg2 Ng4 19. e3 Ne5 20. Nd5 Qa7 21. Bd4 Qd7 22. Bxe5 {½-½ (22) Lukac,J (2022)-Jelen,P (2077) Slovakia 2017}) 14. e4 b5 15. b4 Na4 16. Nxa4 bxa4 17. a3 Rfd8 18. Rc1 e5 19. Ne2 (19. Nc2 $14) 19... Be6 (19... a5 $1 $11) 20. Nc3 $1 $14 Qxc4 21. Nd5 Bxd5 22. Rxc4 Bxc4 23. Bf1 $36 {[%mdl 2048] White has strong initiative.} Bb5 24. f3 d5 ({Black should play} 24... Rd7 25. Rc1 Ne8 26. Bxb5 axb5) 25. Bxe5 $16 dxe4 26. Qf4 Nd5 27. Qxe4 Bxe5 28. Qxe5 Re8 29. Qa1 Ne3 30. Bxb5 axb5 31. Qd4 Nc4 32. Rxe8+ Rxe8 $18 {[%mdl 4096] Endgame KQ-KRN} 33. Qd7 Rb8 34. Qd3 Rb6 (34... h5 $142 35. f4 Rb6) 35. Qd8+ Kg7 36. Qd4+ Kg8 37. g4 h6 (37... Rc6 {keeps fighting.} 38. Qd8+ Kg7) 38. Kf2 Re6 39. f4 {[%cal Bf3f4,Bf4f5][%mdl 32]} Nxa3 (39... Rd6 $142 40. Qc5 Rb6) 40. f5 {White is clearly winning.} Ra6 {and the idea ...Nc4 leaves Black hopeful.} 41. f6 {[#] aiming for Qd8+.} Kh7 42. Qd8 g5 43. Kg1 {Threatens to win with Qe7.} Nc4 {[#]} (43... Re6 $142 44. Qd3+ Kg8 45. Qxa3 Rxf6) 44. Qe7 $1 {[%cal Re7f7]} Kg6 45. Qf8 {Precision: White = 69%, Black = 42%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.28"]
[Round "10"]
[White "Xu, Yi"]
[Black "Fang, Yuxiang"]
[Result "1-0"]
[ECO "C43"]
[WhiteElo "2522"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "123"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 38,123,56,42,51,45,50,57,59,55,35,29,56,49,62,44,56,39,122,132,138,125,138,137,134,76,77,76,58,52,69,69,143,55,55,55,54,54,55,58,266,260,251,250,363,202,191,0,354,187,318,337,317,297,431,423,479,489,572,518,614,650,829,764,5292,4227,2713,2326,12351,6406,29960,29951,29967,29966,29977,29978,29980,29980,29985,29980,29989,29976,29976,29975,29983,29984,29984,29985]} 1. e4 e5 2. Nf3 Nf6 3. d4 Nxe4 4. Bd3 d5 5. Nxe5 Bd6 6. O-O O-O 7. c4 Bxe5 8. dxe5 Nc6 {[%cal Bb8c6,Bc6b4,Bb4c2][%mdl 32]} 9. cxd5 Qxd5 10. Qc2 Nb4 11. Bxe4 Nxc2 12. Bxd5 Bf5 13. g4 Bxg4 14. Be4 Nxa1 15. Bf4 f5 16. Bd5+ Kh8 17. Rc1 c6 18. Bg2 Rfd8 {C43: Petroff Defence: 3 d4} 19. Nd2 h6 (19... Rxd2 20. Bxd2 Rd8 21. Bc3 Rd1+ 22. Rxd1 Bxd1 23. f4 Nc2 24. Kf2 Kg8 25. a4 a5 26. Bxa5 Nd4 27. Bf1 Bb3 {½-½ (27) Kasparov,G (2800)-Anand,V (2635) Linares 1991}) 20. h4 $1 {LiveBook: 6 Games} (20. Rxa1 $2 g5 $19) 20... Rd4 {White is slightly better.} 21. Be3 Rb4 {Strongly threatening ...f4.} 22. b3 Nxb3 23. axb3 Bh5 24. f4 {[%mdl 1024] White has compensation.} Bf7 25. Rc3 Rd8 26. Bf1 $146 ({Predecessor:} 26. Bh3) 26... a5 27. Bc4 Bxc4 (27... Bg8 $1 $14) 28. Nxc4 $16 a4 29. bxa4 $1 Rd1+ 30. Kf2 Rxa4 {[#]} 31. Nd6 ({White should play} 31. Kg3 $1) 31... g6 {[%cal Bg7g6,Bg6h5,Bh5h4][%mdl 32]} 32. Nxb7 Ra2+ 33. Kg3 $1 Kg7 34. Nc5 Ra8 ({Black should try} 34... Re2 $14) 35. h5 (35. Ne6+ $16 Kf7 36. Nc7 (36. Rxc6 Rd3 $11)) 35... gxh5 $14 36. Ne6+ Kh7 $1 37. Nd4 (37. Rxc6 Rd3 $17) 37... h4+ $1 38. Kh3 (38. Kxh4 Rg8 $15) 38... Rg8 $2 (38... Rf8 $1 $14) 39. Kh2 $18 Rf8 40. Nf3 (40. Rxc6 Rd3 $16) (40. Nxc6 Ra8 $14) 40... Rfd8 (40... h3 $142 41. Kxh3 (41. Rxc6 $2 Rd3 $19) 41... Rfd8) 41. Bc5 (41. Rxc6 R8d3 $11) (41. Nxh4 $142 R8d3 42. Rxd3 (42. Rxc6 Rxe3 43. Rxh6+ Kxh6 $11) 42... Rxd3 43. Bc5 (43. Nxf5 Kg6 $18)) 41... Rg8 {[#]} 42. Be3 $2 (42. Nxh4 $6 Rd2+ 43. Kh3 Rd1 $16) (42. e6 $1) 42... Rgd8 $1 {[%cal Rd8d3]} 43. Bf2 ({Worse is} 43. Rxc6 R8d3 $11) (43. Nxh4 $142 R8d3 44. Rxd3 (44. Rxc6 Rxe3 45. Rxh6+ Kxh6 $11) 44... Rxd3 45. Bb6 (45. Nxf5 Kg6 $16)) 43... Rg8 (43... c5 $142) 44. Nxh4 ({Not} 44. Rxc6 Rf1 $16) 44... Rd2 45. Rf3 c5 (45... Rf8 {might work better.} 46. Kg3 Rc2) 46. Nxf5 c4 47. Nd6 c3 48. Ne4 c2 49. Rc3 Re2 50. Nf6+ Kh8 51. Nxg8 Rxf2+ {[%mdl 4096] Endgame KRN-KR} 52. Kg3 Rd2 53. Rc8 Rd8 54. Rxc2 {White mates.} Kxg8 {KR-KR} 55. Kg4 Kf7 56. Kf5 h5 57. Rc7+ Kg8 58. Kg5 Rf8 59. Rc4 Kf7 60. f5 Ke7 61. Rc7+ Kd8 62. Ra7 {Precision: White = 80%, Black = 39%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.28"]
[Round "10"]
[White "Xu, Yi"]
[Black "Fang, Yuxiang"]
[Result "*"]
[WhiteElo "2522"]
[BlackElo "2502"]
[Annotator "TA"]
[PlyCount "26"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 5,5,25]} 1. e4 e5 2. Nf3 Nf6 3. d4 {Predecessor:} Nxe4 $146 4. dxe5 d5 5. Nbd2 Nxd2 6. Bxd2 Be7 7. Bd3 c5 8. c3 Nc6 9. O-O Bg4 10. Re1 Qd7 11. h3 Bh5 12. Bf4 Qe6 13. a3 O-O {0-1 (69) Grischuk,A (2767)-Caruana,F (2784) Berlin 2018} *

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.28"]
[Round "10"]
[White "Xu, Jun"]
[Black "Wen, Yang"]
[Result "0-1"]
[ECO "A41"]
[WhiteElo "2501"]
[BlackElo "2585"]
[Annotator "TA"]
[PlyCount "64"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,64,34,50,26,55,18,19,14,10,9,15,-5,2,-16,-8,-11,-8,-12,-7,-70,-65,-66,-66,-110,-80,-115,-96,-110,-91,-110,-64,-134,-112,-143,-164,-162,-167,-164,-149,-152,-147,-159,-152,-191,-202,-322,-322,-317,-290,-394,-390,-391,-393,-390,-366,-604,-593]} 1. d4 d6 2. Nf3 g6 3. c4 Bg7 4. Nc3 Nc6 5. d5 Bxc3+ (5... Ne5 6. Nxe5 Bxe5 7. g3 c5 8. Bg2 Bg7 9. O-O Nf6 10. Qc2 O-O 11. Re1 e6 12. dxe6 Bxe6 13. Bxb7 Rb8 14. Bg2 Bxc4 15. Bg5 h6 16. Bxf6 Bxf6 17. b3 Qa5 18. Rac1 Qxc3 {½-½ (18) Lenic,L (2662)-Nakamura,H (2781) chess.com INT 2018}) 6. bxc3 {A41: 1 d4 d6: Tartakower System and Modern Defence} Na5 7. c5 $146 ({Predecessor:} 7. Qd4 Nf6 8. Bg5 c5 9. Qh4 h6 10. Nd2 Nh5 11. Be3 e5 12. Qxd8+ Kxd8 13. f3 {½-½ (53) Batchuluun,T (2544)-Sjugirov,S (2649) Astana 2017}) 7... dxc5 8. c4 {Threatening Qa4+.The position is equal.} c6 9. e4 Nf6 10. e5 Ne4 11. Ng5 Nxg5 12. Bxg5 h6 13. Be3 b6 14. Be2 (14. e6 $11) 14... Ba6 $36 {[%mdl 2048] Black has the initiative.} 15. Qa4 Qd7 16. e6 fxe6 17. dxc6 Qxc6 18. Qc2 {[#]} O-O-O $1 19. O-O g5 {[%cal Bg6g5,Bg5g4][%mdl 32]} 20. f4 {[#]} (20. Bd2 $15) 20... g4 $1 $17 21. f5 (21. Bxg4 Bxc4) 21... h5 22. Rf2 exf5 23. Qxf5+ Qd7 24. Qe4 {Black must now prevent Qa8+.} Bb7 25. Qg6 Qd6 26. Qxd6 exd6 27. Rf5 (27. Bd2 $142) 27... Rde8 $19 28. Kf2 Rhf8 29. Rxf8 Rxf8+ 30. Kg3 Re8 31. Kf2 {[#]} Bxg2 $1 {[%mdl 512]} 32. Rd1 $2 {[#]} (32. Re1 Bb7 33. Bd2) (32. Kxg2 Rxe3) 32... Bf3 $1 {Precision: White = 34%, Black = 83%.} 0-1

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.29"]
[Round "11"]
[White "Wen, Yang"]
[Black "Xu, Xiangyu"]
[Result "1/2-1/2"]
[ECO "B67"]
[WhiteElo "2585"]
[BlackElo "2574"]
[Annotator "TA"]
[PlyCount "122"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,122,40,20,30,31,26,4,31,31,33,41,75,72,108,87,98,85,108,56,72,25,37,25,63,33,79,78,79,56,64,59,67,61,79,64,79,79,79,79,79,79,79,79,79,79,79,79,79,79,79,60,81,66,77,77,73,75,75,72,69,62,55,0,0,0,0,6,12,0,0,0,1,0,0,0,0,0,0,-4,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6 8. O-O-O Bd7 9. f3 Be7 10. h4 h6 {B67: Sicilian: Richter-Rauzer: 7...a6 8 0-0-0 Bd7, lines without 9 f4 Be7} 11. Be3 h5 12. Kb1 b5 (12... Qc7 13. Bg5 Ne5 14. Bd3 b5 15. Rhe1 b4 16. Nce2 a5 17. f4 Neg4 18. Ng1 {½-½ (91) Short,N (2678)-Li,C (2732) Riadh 2017}) 13. Nxc6 Bxc6 14. Ne2 d5 15. Nd4 Bb7 16. e5 Nd7 {[%cal Bf6d7,Bd7c5,Bc5a4][%mdl 32]} 17. f4 g6 18. Qf2 $146 (18. g4 $16) ({Predecessor:} 18. g4 hxg4 {1-0 (36) Drenchev,P (2447)-Monroy,C (2408) Groningen 2007}) 18... Nc5 $1 $14 19. Bd3 Qc7 20. Nb3 {[%cal Rb3c5]} Na4 21. c3 O-O-O 22. Ba7 Bc6 23. Rc1 Bd7 24. Be2 Kb7 25. Bd4 Rc8 26. Qe3 Kb8 27. Bf3 Bc6 28. g3 Ba8 29. Rh2 Bb7 30. Rhc2 Ba8 31. Bg2 Bb7 32. Bh1 Ba8 33. Bf3 Bb7 34. Qe2 Nc5 35. Nd2 Na4 36. Qe3 Bc5 37. Be2 Ka8 38. b3 Nb6 39. Bxc5 Qxc5 40. Qxc5 (40. Qd4 $14) 40... Rxc5 $11 {The position is equal.} 41. Nf3 Rc7 42. Ng5 Ka7 43. Kb2 Rf8 44. Rd1 Nd7 45. Rd4 Nc5 46. Bd3 Kb6 47. Re2 a5 48. Re3 Rfc8 49. Bb1 Na6 50. a3 Nc5 51. Bc2 Bc6 52. b4 Na4+ 53. Bxa4 bxa4 54. bxa5+ Kxa5 55. Nf3 Bb5 56. Rb4 Rc4 57. Nd4 Ba6 58. Rf3 R8c7 59. Re3 Rc8 60. Rf3 R8c7 61. Re3 Rc8 {Precision: White = 72%, Black = 72%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.29"]
[Round "11"]
[White "Zeng, Chongsheng"]
[Black "Lu, Shanglei"]
[Result "1/2-1/2"]
[ECO "E04"]
[WhiteElo "2542"]
[BlackElo "2640"]
[Annotator "TA"]
[PlyCount "159"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,159,19,0,34,37,36,32,37,27,48,27,38,27,37,39,72,73,87,71,108,107,102,101,119,127,144,144,168,98,108,121,126,99,245,243,225,185,191,172,334,333,333,254,367,367,352,272,360,348,410,383,383,383,336,261,234,123,114,123,116,116,116,116,116,116,116,115,116,116,116,98,104,79,79,79,96,96,96,96,96,93,93,93,94,94,94,94,94,93,93,93,93,93,94,94,94,94,94,51,94,94,94,94,94,94,94,0,94,94,94,58,58,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 e6 3. c4 d5 4. g3 dxc4 5. Bg2 c5 6. O-O Nc6 7. Qa4 Bd7 8. Qxc4 b5 9. Qd3 c4 10. Qd1 Rc8 11. Ne5 {LiveBook: 8 Games. E04: Open Catalan: 5 Nf3} (11. b3 Na5 12. Ne5 cxb3 13. axb3 Rxc1 14. Qxc1 Nxb3 15. Qb2 Nxa1 16. Qxa1 Bd6 17. Qxa7 O-O 18. Nxd7 Nxd7 {½-½ (77) Yu,Y (2751)-Harikrishna,P (2744) Huaian 2017}) 11... Be7 12. a4 a6 {[%cal Ba7a6,Ba6b5,Bb5b4][%mdl 32]} 13. axb5 {White is slightly better.} axb5 14. Nc3 b4 15. Nxd7 Qxd7 16. d5 Ne5 $146 ({Predecessor:} 16... Nb8 17. dxe6 Qxe6 18. Nb5 O-O {1-0 (50) Emrich,E (2183)-Vohl,G (2404) ICCF email 2012}) 17. dxe6 fxe6 18. Qxd7+ Nexd7 19. Nb5 $1 Kf7 20. Bf4 e5 21. Be3 Rhd8 22. Rfc1 $1 e4 23. Bh3 h5 24. Ra6 (24. Ra7 $18) 24... Ng4 $16 25. Bxg4 hxg4 26. Na7 $1 Bf6 (26... Ra8 $16 {was necessary.}) 27. Nxc8 $18 Rxc8 28. Ra4 Bxb2 29. Rd1 $36 {[%mdl 2048] White is in control.} Nf6 $2 (29... Ne5) 30. Rxb4 c3 31. Rb7+ Ke6 (31... Kg6 $142 32. Rd6 Ba3) 32. Rb6+ $1 Ke5 33. Bf4+ Kf5 {intending ...c2.} 34. Rdd6 Rc5 35. Be3 Rd5 36. Rdc6 Nd7 37. Rb7 Ne5 {[#]} 38. Ra6 (38. Rcb6 $1 $18 Nc4 39. Rc6) 38... c2 $16 39. Rxb2 Nf3+ 40. Kg2 Ne1+ 41. Kf1 Nf3 {[#] ( -> ...Rd1+)} 42. Ra5 $1 {[%cal Ra5d5]} Rxa5 43. Rxc2 {[%mdl 4096] Endgame KRB-KRN} Ra1+ 44. Rc1 Rxc1+ 45. Bxc1 {KB-KN} Nd4 46. Ke1 Ke6 47. Bb2 Nf5 48. Kf1 g6 49. Kg2 Nd6 50. f3 exf3+ 51. exf3 Kf5 52. fxg4+ Kxg4 53. h3+ Kf5 54. g4+ Ke4 55. Bc1 Nf7 56. Kg3 g5 57. Bd2 Kd3 58. Ba5 Ke4 59. Bb4 Ne5 60. Bd2 Nf7 61. Bc1 Kd3 62. Kf3 Ne5+ 63. Kg3 Nf7 64. Bb2 Ke4 65. Kf2 Ne5 66. Bxe5 (66. Kg2 $1 $14) 66... Kxe5 $14 {KPP-KP. The position is equal.} 67. Ke3 Kd5 $1 68. Kf3 Ke5 $1 69. Kg3 {Intending h4 and mate.} Kf6 $1 70. Kg2 {And now Kg3 would win.} Kg6 71. Kf3 {Strongly threatening Ke4.} Kf6 72. Ke4 Ke6 73. Kd4 {Ke4 is the strong threat.} Kd6 $1 74. Ke3 {aiming for Kd4.} Ke5 75. Kf3 Kf6 $1 76. Kg2 Ke5 77. h4 gxh4 78. Kh3 Kf6 79. Kxh4 {Black must now prevent Kh5.} Kg6 80. g5 {Precision: White = 77%, Black = 71%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.29"]
[Round "11"]
[White "Fang, Yuxiang"]
[Black "Bai, Jinshi"]
[Result "1/2-1/2"]
[ECO "D76"]
[WhiteElo "2502"]
[BlackElo "2586"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,136,6,6,6,6,6,6,6,9,6,7,6,11,6,6,6,4,5,2,0,2,-13,-13,-13,-13,-13,-13,-13,-13,-13,-13,-14,-14,-14,-13,-16,-12,-8,-10,-16,-2,-10,-9,-11,-8,-20,-20,-48,-8,-8,-8,-8,-8,-8,-8,-8,0,-8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,-2,0,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,-8,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 d5 5. Bg2 O-O 6. O-O Nc6 7. cxd5 Nxd5 8. Nc3 Nb6 9. e3 Re8 10. b3 e5 11. Nxe5 {D76: Fianchetto Grünfeld: Main Line with 7...Nb6} Nxe5 12. dxe5 Qxd1 (12... Bxe5 13. Bb2 Qe7 14. Qc2 c6 15. Rad1 Bg4 16. f3 Be6 17. f4 Bg7 18. e4 Rad8 19. e5 Bg4 20. Bf3 Rxd1 21. Qxd1 {0-1 (59) Giri,A (2784)-Vachier Lagrave,M (2773) London 2015}) 13. Rxd1 Bxe5 14. Bb2 c6 15. Rd2 Bf5 16. Rad1 a5 17. Bf3 h5 $146 ({Predecessor:} 17... Bg7 18. Ne2 Bxb2 19. Rxb2 Red8 20. Nd4 Bh3 {½-½ (30) Deghose,M (2121)-Pascual Perez,N (2316) LSS email 2011}) 18. Kg2 Bg7 19. h3 a4 20. Nxa4 Nxa4 21. bxa4 Rxa4 22. Rd8 Rxd8 23. Rxd8+ Kh7 24. Bxg7 Kxg7 $11 {[%mdl 4096] Endgame KRB-KRB} 25. Rb8 Ra7 26. g4 hxg4 27. hxg4 Be6 28. a4 Kf6 29. Bd1 Ke5 30. f4+ Ke4 31. Kf2 {[#] Rd8 would kill now.} Kd3 32. Be2+ Kc3 33. e4 Rxa4 34. f5 {The position is equal.} gxf5 35. gxf5 Ba2 36. Rxb7 Rxe4 {Strongly threatening ...Bd5.} 37. Bf3 $1 {[%cal Rf3e4]} Rc4 38. Rc7 Rf4 39. Ke3 Rxf5 {Threatens to win with ...c5.} 40. Rxc6+ Kb4 41. Be4 Rf1 42. Rb6+ Kc5 43. Rc6+ Kb4 44. Rb6+ Kc3 45. Rc6+ Kb2 46. Rb6+ Kc3 47. Rc6+ Kb4 48. Rb6+ Kc5 49. Rc6+ Kb5 {[#] Hoping for ...Re1+.} 50. Bd3+ (50. Rc8 {looks sharper.} Rd1 51. Rb8+ Kc5 52. Rc8+ Kb6 53. Rc6+) 50... Kxc6 51. Bxf1 {KB-KB} Kd5 52. Kf4 Ke6 53. Bd3 Kf6 54. Bb5 Kg7 55. Be8 f6 56. Bb5 Bb1 57. Bc6 Bd3 58. Bd5 Kf8 59. Bc6 Ke7 60. Bd5 Kd6 61. Bb7 Ke6 62. Bc6 Bc2 63. Bb7 Ba4 64. Be4 Bb3 65. Bc6 Bd5 66. Bxd5+ Kxd5 67. Kf5 Kc6 68. Kxf6 Kd5 {Precision: White = 73%, Black = 81%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.29"]
[Round "11"]
[White "Wang, Chen"]
[Black "Zhou, Jianchao"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2495"]
[BlackElo "2616"]
[Annotator "TA"]
[PlyCount "138"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,138,5,6,23,8,33,1,0,0,0,2,38,0,37,-10,54,0,28,0,8,-39,-16,-16,0,-16,-13,-13,15,-18,34,31,34,14,70,61,68,68,69,26,27,0,0,0,27,27,27,30,30,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 g6 3. Bg5 Bg7 4. Nbd2 d5 5. e3 O-O 6. Be2 Nbd7 7. O-O c5 8. c3 b6 9. a4 a6 {D03: 1 d4 d5 2 Nf3 Nf6 3 Bg5, including Torre Attack with early ...d5} 10. h3 (10. b4 Bb7 11. a5 cxb4 12. cxb4 b5 13. Rc1 Ne8 14. Nb3 Nd6 15. Ne1 Nc4 16. Nd3 Ra7 17. Bh4 {0-1 (54) Kramnik,V (2783)-Caruana,F (2802) Shamkir 2015}) 10... Bb7 11. Bf4 {LiveBook: 16 Games} Ne8 12. Qb1 $146 ({Predecessor:} 12. Bg3 Nd6 13. Qc2 Rc8 14. Bxd6 exd6 15. Qb3 Qe7 16. Rfe1 Kh8 17. Bf1 {0-1 (98) Petrovic,M (2246)-Stojanovic,A (2193) Tivat 2006}) 12... Rc8 13. Rd1 Nd6 14. Qa2 Re8 15. Ne5 Nf6 16. Bh2 e6 17. Rac1 h5 (17... Nfe4 $11) 18. Nef3 (18. a5 $14) 18... c4 19. b4 b5 20. a5 Nde4 21. Qc2 Bh6 22. Rf1 Nh7 23. Rce1 Nf8 24. Bd1 Nxd2 ({Black should play} 24... Bg7 $11) 25. Nxd2 $14 Nd7 26. f4 Nf6 (26... h4 $11) 27. g4 hxg4 28. hxg4 {[#] Threatens to win with g5.} Ne4 29. Bf3 {[%cal Rd2e4]} f5 30. g5 Bf8 31. Kg2 Re7 32. Bg3 Rh7 33. Rh1 Rcc7 34. Rd1 Bd6 {The position is equal.} 35. Rxh7 Rxh7 36. Nxe4 dxe4 37. Be2 Be7 38. Qc1 Bc6 39. Rh1 Rxh1 40. Kxh1 Kf7 41. Kg2 Qf8 42. Qh1 Kg8 43. Qe1 Bd5 44. Kg1 Qc8 45. Qb1 Qc7 46. Kf2 Bf8 47. Kg2 Qa7 48. Kf2 Qh7 49. Kg2 Be7 50. Qh1 Qg7 51. Qb1 Bd6 52. Kf2 Qh8 53. Kg2 Kf7 54. Qh1 Qg7 55. Qb1 Kg8 56. Kf2 Qh8 57. Kg2 Be7 58. Qh1 Qg7 59. Qb1 Qf8 60. Kf2 Bc6 61. Qe1 Qd8 62. Qc1 Kf7 63. Qh1 {[#] Black must now prevent Qh7+.} Qg8 64. Qb1 Qh8 65. Kg2 Bd6 66. Qh1 Qg7 67. Qb1 Qh8 68. Qh1 Qxh1+ 69. Kxh1 Bd5 {Precision: White = 61%, Black = 51%.} 1/2-1/2

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.29"]
[Round "11"]
[White "Liu, Yan"]
[Black "Xu, Jun"]
[Result "1-0"]
[ECO "A06"]
[WhiteElo "2481"]
[BlackElo "2501"]
[Annotator "TA"]
[PlyCount "151"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,151,12,12,5,3,5,7,3,53,3,56,46,54,-2,20,10,16,16,22,10,35,5,4,6,28,26,24,12,45,27,53,47,57,28,32,0,0,0,12,0,0,0,70,0,0,0,0,0,17,0,0,0,114,117,117,117,116,116,116,116,81,116,67,67,116,116,116,116,110,118,616,610,597,600,566,543,615,605,680,12,58,58,58,58,58,58,58,58,58,58,58,58,58,58,60,58,59,58,58,58,60,58,60,60,60,60,60,60,60,58,58,56,58,0,58,58,58,57,58,58,58,58,59,58,60,60,60,57,60,60,60,60,60,57,57,57,58,58,58,58,58,57,29937,12842]} 1. Nf3 c5 2. b3 d5 3. e3 Nc6 4. Bb5 e6 5. Bb2 Nge7 {[%cal Bg8e7,Be7f5,Bf5d4][%mdl 32] LiveBook: 9 Games} 6. c4 {A06: Réti Opening:1 Nf3 d5} a6 7. Ba4 Bd7 $146 ({Predecessor:} 7... f6 8. O-O Bd7 9. d4 cxd4 10. exd4 Na5 11. Bxd7+ Qxd7 12. c5 Ng6 13. h4 {1-0 (51) Granda Zuniga,J (2678)-Diaz Hollemaert,N (2442) Neuquen 2015}) 8. O-O {The position is equal.} Nf5 9. d3 Be7 (9... d4 $11) 10. cxd5 $14 exd5 11. e4 (11. Bxc6 $1 $14 Bxc6 12. Ne5) 11... dxe4 12. dxe4 {Strongly threatening Bxc6.} Nfd4 13. Bxc6 Bxc6 14. Nxd4 cxd4 15. Qxd4 Qxd4 16. Bxd4 O-O-O 17. Bxg7 Rhg8 18. Bb2 Bxe4 (18... f5 $5) 19. g3 f5 20. Nc3 Bc6 21. Na4 b5 22. Rac1 Rg6 $1 23. Nc5 f4 24. Rc2 fxg3 25. fxg3 h5 ({Black should play} 25... Bxc5+ $11 26. Rxc5 Rd2) 26. b4 (26. Rfc1 $14) 26... h4 $11 27. Be5 $36 {[%mdl 2048] White has the initiative.} ({Reject} 27. Nxa6 hxg3 28. h4 Bxh4 $17) 27... Rd5 28. Bf4 a5 29. Re1 hxg3 30. hxg3 Bd6 (30... Bxc5+ $11 {remains equal.} 31. bxc5 (31. Rxc5 axb4 32. Rc2 Rh5 $11) 31... Rf5) 31. Ne6 $16 Kd7 {And now ...Rh5 would win.} 32. Bxd6 $1 (32. bxa5 Rh5 $15) 32... Kxd6 33. Nf4 $1 {[%cal Rf4g6]} ({Worse is} 33. bxa5 Rxg3+ 34. Kh2 Rg4 $17) 33... Rxg3+ 34. Kh2 $1 {[%cal Rh2g3]} Rg4 35. Nxd5 Bxd5 36. bxa5 {[%mdl 4096] Endgame Rd1 is the strong threat. KRR-KRB} Ra4 {[#]} 37. Re8 $1 {[%cal Re8d8]} Kd7 38. Re5 Kd6 39. Rh5 b4 $2 {[%mdl 8192]} (39... Rxa5 $16 40. Rd2 b4) 40. Rh6+ $18 Ke5 41. Re2+ Kf4 42. Rf6+ Kg5 43. Rff2 Kg4 44. Rb2 $2 ({White should try} 44. Re1 $18) 44... Kg5 (44... b3 $5) 45. Rb1 {Black must now prevent Rg1+.} Rxa5 46. Rg1+ Kh6 47. Rf6+ Kh7 48. Rf5 {[%cal Rf5h5]} Rxa2+ 49. Kg3 Be4 50. Rf4 Bg6 51. Rxb4 Ra6 52. Kf4 Kg7 53. Kg4 Kf6 54. Rf1+ Ke5 55. Kg5 Bc2 56. Rb5+ Kd4 57. Rf4+ Kd3 58. Rd5+ Ke3 59. Rc4 Rg6+ 60. Kh4 Rh6+ 61. Kg5 Rg6+ 62. Kh5 Rg2 63. Rd8 Rh2+ 64. Kg5 Rg2+ 65. Kf6 Rf2+ 66. Ke7 Bf5 67. Rc3+ Ke4 68. Ra3 Ke5 69. Ra5+ Ke4 70. Ra4+ Ke5 71. Rb8 {[%cal Rb8b5]} (71. Rf8 {keeps more tension.} Re2 72. Ra5+ Kd4+ 73. Kf6 Bc2 74. Rd8+) 71... Rd2 72. Rb7 Rd5 73. Ra1 Be4 74. Rb4 Rd4 75. Rb6 Rd5 $2 {[%mdl 8192] [#]} (75... Bd3 $14) 76. Re6+ $1 {Precision: White = 66%, Black = 51%.} 1-0

[Event "49th CHN-ch 2018"]
[Site "Xinghua"]
[Date "2018.04.29"]
[Round "11"]
[White "Liu, Guanchu"]
[Black "Xu, Yi"]
[Result "0-1"]
[ECO "B11"]
[WhiteElo "2459"]
[BlackElo "2522"]
[Annotator "TA"]
[PlyCount "76"]
[EventDate "2018.??.??"]
[EventCountry "CHN"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,76,4,12,0,0,0,0,0,0,0,0,-3,2,-30,-26,-37,-39,-37,-47,-37,-47,-70,-65,-83,-78,-87,-84,-84,-44,-77,-69,-90,-85,-110,-108,-139,-139,-137,-110,-104,-102,-237,-213,-256,-251,-309,-308,-298,-290,-271,-172,-450,-445,-448,-206,-197,-187,-231,-229,-310,-309,-349,-344,-376,-278,-411,-426]} 1. e4 {[%cal Be2e4,Be4e5][%mdl 32]} c6 2. Nc3 d5 3. Nf3 Nf6 4. e5 Ne4 5. d4 Nxc3 6. bxc3 {B11: Caro-Kann: Two Knights Variation} c5 {LiveBook: 19 Games} 7. Bb5+ (7. Rb1 Nc6 8. dxc5 e6 9. Bd3 Bxc5 10. O-O h6 11. Qe2 O-O 12. c4 Nb4 13. Be3 Nxd3 14. cxd3 Bxe3 15. Qxe3 dxc4 16. dxc4 {½-½ (32) Short,N (2698)-Tari,A (2588) Douglas 2017}) 7... Bd7 8. a4 $146 {e6 is the strong threat.The position is equal.} ({Predecessor:} 8. Rb1 e6 9. O-O Bxb5 10. Rxb5 Qd7 11. a4 a6 12. Rb1 Qxa4 13. Rxb7 {0-1 (37) Hess,M (2271)-Vogel,R (2493) Tegernsee 2017}) 8... a6 9. Bxd7+ Qxd7 10. Ba3 e6 11. O-O Nc6 12. Qd3 Rc8 {[%cal Ba8c8,Bc8c5,Bc5d5][%mdl 32]} 13. Nd2 Be7 14. f4 O-O 15. dxc5 Na5 16. c4 Bxc5+ 17. Bxc5 Rxc5 18. Nb3 Nxb3 19. cxb3 Qc6 {[%cal Rd5c4]} 20. cxd5 $1 Rxd5 21. Qe3 g6 22. h4 h5 23. Rac1 Qd7 24. Rc3 Rd8 25. Rfc1 Qe7 26. g3 {[#]} (26. Qg3 $17) 26... b5 $1 $19 27. axb5 axb5 28. Kg2 Rd2+ 29. Kh3 Qb7 {[%csl Gd2][%cal Rb7g2]} 30. Qf3 Qb6 $40 {[%mdl 128] Black attacks with force.} 31. Rc5 $2 {[#]} (31. Qe3 Qb7 32. Qf3) 31... R8d3 32. Qc6 Qxc6 (32... Qa7 $142 33. b4 Kg7) 33. Rxc6 Rxb3 {KRR-KRR} 34. R6c2 Rdd3 35. Rg1 Kg7 36. Ra2 b4 {[%cal Bb5b4,Bb4b3][%mdl 32]} 37. Kh2 Rbc3 38. Rb2 (38. Ra8 {was necessary.}) 38... b3 {Precision: White = 22%, Black = 86%.} 0-1

