Wei Yi's Immortal Game

[Sean Evans]

[pgn][Event "6th Hainan Danzhou GM"]
[Site "Danzhou CHN"]
[Date "2015.07.03"]
[Round "2"]
[White "Wei Yi"]
[Black "Bruzon Batista, L."]
[Result "1-0"]
[ECO "B40"]
[WhiteElo "2724"]
[BlackElo "2669"]
[Plycount "79"]
[Eventdate "2015.07.02"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"]

1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.Be2 Nc6 5.d4 cxd4 6.Nxd4 Qc7 7.O-O Nf6 8.Be3 Be7 9.f4 d6 { Perhaps Bruzon was tricked into the Scheveningen via this
irregular move order. } 10.Kh1 O-O 11.Qe1 Nxd4 12.Bxd4 b5 13.Qg3 Bb7 14.a3 { A well-known variation of the Scheveningen. } 14...Rad8 ( { Bruzon only had this
position as Black once in his career, twelve years ago: } 14...Bc6 15.Rae1 Rae8 16.Bd3 e5 17.fxe5 Nh5 18.Qh3 dxe5 19.Be3 Nf4 20.Bxf4 exf4 21.e5 g6 { Zapata,A (2472)-Bruzon,L (2603) Santo Domingo DOM 2003 } ) 15.Rae1 Rd7 { This
funny-looking move is the most popular in this position. } 16.Bd3 Qd8 { This
might be inaccurate already, even though it was played before by several
grandmasters. } ( { Here the immediate } 16...Re8 { is played more often, e.g. } 17.Re2 ( 17.a4 b4 18.Na2 Qa5 19.Nc1 Qxa4 ( 19...Qh5 20.Nb3 Qg6 21.Qh3 Qg4 22.Qxg4 Nxg4 23.Na5 Ra8 24.Be2 Nf6 { Giri,A (2750)-Hou,Y (2629) Biel 2014 } ) 20.Qh3 h6 21.Nb3 Qc6 22.Na5 Qc7 23.Nxb7 Qxb7 24.Re3 Bd8 { Leko,P (2723)-Wang,Y
(2720) Beijing 2014 } ) 17...Qd8 18.Ref2 Bf8 19.Rf3 g6 20.f5 exf5 21.Rxf5 Nxe4 22.Qf4 Qe7 23.Bxe4 Bxe4 24.Nxe4 Qxe4 25.Rxf7 Qxf4 26.R7xf4 Bg7 { Giri,
A (2734)-Grischuk,A (2780) Beijing 2013 } ) 17.Qh3 g6 18.f5 e5 19.Be3 Re8?! ( { Here Black should go } 19...Nh5 20.Rf3 Bc6 21.Bh6 Re8 22.Qxh5!? { Basically a draw offer. } ( 22.Nd5 { looks good for White. } ) 22...Bh4 ( 22...gxh5 23.Rg3+ Kh8 24.Bg7+ Kg8 { is nothing more than draw. } ) 23.Qg4 Bxe1 24.f6 Bxc3? ( 24...d5 { was just enough to draw here, as Benjamin Bok pointed
out: } 25.Bg7 Rd6! 26.Qg5 dxe4 27.Rh3 exd3 28.Qh6 Bxg2+! 29.Kxg2 Qa8+ 30.Kg1 Qa7+ { and Black gives perpetual. } ) 25.bxc3 d5 26.Bg7 dxe4 27.Rh3 Rd6 28.Qg5 Rxd3 29.cxd3 { 1-0 Bok,B (2520)-Hansen,E (2584) Oslo 2013 } ) 20.fxg6 ( 20.Qf3 Kh8 21.Bg5 { was also good for White in Alekseev,E (2698)-Jumabayev,R
(2561) Khanty-Mansiysk 2013 } ) 20...hxg6 21.Nd5 { A strong novelty. } ( 21.Bb6 Qc8 22.Re2 Nh5 23.Be3 Rc7 24.Qxc8 Rexc8 25.Ref2 Bf8 26.Be2 Nf4 { Sredojevic,I (2396)-Rajkovic,D (2474) Vrnjacka Banja 2008 } ) 21...Nxd5?! { Losing on the spot, but how could Bruzon know? } ( 21...Bxd5 22.exd5 Rb7 23.Qf3 { looks better for White too. } ) 22.Rxf7!! { It takes a while for computers
to change their 0.00. White wins on the spot. } 22...Kxf7 23.Qh7+ Ke6 24.exd5+ Kxd5 ( 24...Bxd5 25.Bxg6 { and Black's free move can't save him, for example } 25...Rf8 ( 25...Bf6 26.Bf5# ) 26.Qh3+ Kf6 27.Rf1+ Kg7 28.Qh7# ) 25.Be4+! { A classic
king hunt, dragging the king further into the danger zone with multiple
sacrifices. } 25...Kxe4 ( 25...Ke6 26.Qxg6+ Bf6 27.Qf5+ Ke7 28.Qh7+ Kf8 29.Bh6+ Rg7 { and now e.g. } 30.Rf1! { and Black can resign. } ) 26.Qf7 { The first
"silent" queen move, threatening mate in one in different ways. } ( { The move } 26.c4! { was in fact a forced mate in 9: } 26...Kd3 ( 26...bxc4 27.Qxg6+ Kd5 28.Qf7+ Ke4 29.Qxc4+ Kf5 30.Rf1+ Bf3 31.Rxf3+ Kg6 32.Qf7# ) 27.Qxg6+ Be4 28.Rd1+ Kc2 29.Qxe4+ Kb3 30.Qd3+ Ka2 31.b4 { and so on. } ) 26...Bf6 27.Bd2+ Kd4 28.Be3+ { Just repeating moves; nothing wrong with that. } 28...Ke4 29.Qb3! { Another silent queen move, theatening Qd3 mate. } 29...Kf5 30.Rf1+ Kg4 31.Qd3! { And the third silent queen move! } 31...Bxg2+ ( 31...Rg7 32.Qe2+ Kh4 33.h3! Qd7 34.Kh2! Bxg2 35.Qxg2 { forces Black to give up his queen. } ) 32.Kxg2 Qa8+ 33.Kg1 Bg5 ( 33...Rg7 34.Qe2+ Kh4 35.Bf2+ Kh3 36.Qd3+ Kg4 37.Qg3+ Kf5 38.Qh3+ Ke4 39.Qd3+ Kf4 40.Be1+ ) 34.Qe2+ Kh4 35.Bf2+ Kh3 36.Be1! { And
another silent move to finish off the game. Just brilliant! Black resigned
here as the threat of putting pieces on the third rank is too much to bear.
For example: } 36...Rf8 ( { not } 36...e4 { cutting off protection of g2 } 37.Qg2# ) 37.Qd3+ Kg4 ( 37...Rf3 38.Rxf3+ Kg4 39.Rg3+ Kf4 ( 39...Kh4 40.Rg2+ Kh5 41.Qh3+ Bh4 42.Qxh4# ) ( 39...Kh5 40.Bd2! { and taking or moving the bishop leads to
catastrophe after Qxg6+ } ) 40.Bd2# ) 38.Qg3+ Kh5 39.Qh3+ Bh4 40.Qxh4#
1-0[/pgn]

[kgburcham]

Sean what about the blunder?



29 7:50 +23.95 27.Qb3 Kf5 28.Rf1+ Kg4 29.Qd3 (12.957.672.836) 27533 TB:1.065
29 7:50 0.00 27.Bd2+ Kd4 28.Be3+ Ke4 29.Qb3 (12.957.672.836) 27533 TB:1.065
28 7:50 0.00 27.Bc1+ Kd4 28.Be3+ Ke4 29.Qb3 (12.957.672.836) 27533 TB:1.065

[Uri Blass]

Sean what about the blunder?



29 7:50 +23.95 27.Qb3 Kf5 28.Rf1+ Kg4 29.Qd3 (12.957.672.836) 27533 TB:1.065
29 7:50 0.00 27.Bd2+ Kd4 28.Be3+ Ke4 29.Qb3 (12.957.672.836) 27533 TB:1.065
28 7:50 0.00 27.Bc1+ Kd4 28.Be3+ Ke4 29.Qb3 (12.957.672.836) 27533 TB:1.065

No blunder.

Repeating moves still win.

The fact that the computer evaluate repetition as 0.00 does not mean that it does not win when you continue later the right move.

Wei Yi prefered to repeat moves before making Qb3 maybe because he prefered to earn time on the clock to check Qb3 later.

[kgburcham]

so you are saying if the computer plays this out, white will still win if black plays best moves.

[Uri Blass]

so you are saying if the computer plays this out, white will still win if black plays best moves.

Yes

27.Bd2+ Kd4 28.Be3+ Ke4 29.Qb3 is the same position as 27.Qb3

[kgburcham]

thanks for the correction Uri, I see it now.

[Ferdy]

SF6 at 2s/pos starting at move 14. Probably there was still a defense at 31...Rg7.

[pgn]
[Event "6th Hainan Danzhou GM"]
[Site "Danzhou CHN"]
[Date "2015.07.03"]
[Round "2"]
[White "Wei Yi"]
[Black "Bruzon Batista, L."]
[Result "1-0"]
[Annotator "Stockfish 6 (2.0s/pos)"]
[BlackElo "2669"]
[ECO "B85"]
[WhiteElo "2724"]

1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.Be2 Nc6 5.d4 cxd4 6.Nxd4 Qc7 7.O-O Nf6 8.Be3 Be7 9.f4 d6 10.Kh1 O-O 11.Qe1 Nxd4 12.Bxd4 b5 13.Qg3 Bb7 14.a3 Rad8 15.Rae1 Rd7 16.Bd3 $1 Qd8 17.Qh3 $10 { -0.00/15 } ( { More accurate is } 17.Rd1 Bc6 18.Qh3 h6 19.Qg3 Nh5 20.Qg4 $10 { +0.21/16 } ) ( { Also playable is } 17.Rd1 Bc6 18.Qh3 h6 19.Qg3 Nh5 20.Qg4 $10 { +0.21/16 } ) 17...g6 $14 { +0.66/17 } ( { Best line is } 17...h6 18.Qg3 Nh5 19.Qe3 Nf6 20.Be2 d5 $10 { +0.10/15 } ) ( { Also playable is } 17...h5 18.Bxf6 Bxf6 19.Qxh5 g6 20.Qh3 Kg7 $14 { +0.32/15 } ) ( { White is threatening } 17...-- 18.Re3 g6 19.Rg3 d5 20.exd5 Bxd5 21.Be5 { 1.11/15 } ) 18.f5 e5 19.Be3 Re8 $14 { +0.90/17 } ( { Better is } 19...Kh8 20.Rd1 Bc6 21.Bg5 Rc7 22.Qh4 Bb7 $14 { +0.63/15 } ) ( { A mistake is } 19...Bc6 $2 { due to } 20.Nd5 Bxd5 21.exd5 Rb7 22.Bd2 $14 { +0.98/15 } ) ( { White is threatening } 19...-- 20.Bh6 Re8 21.Bg5 Nh5 22.f6 Bf8 23.Nd5 { 0.90/15 } ) 20.fxg6 $14 { +0.82/16 } ( { More accurate is } 20.Rf3 Bc8 21.Bg5 Nh5 22.Bxe7 Rdxe7 23.Nd5 $14 { +1.18/18 } ) ( { Also playable is } 20.Rf3 Bc8 21.Bg5 Nh5 22.Bxe7 Rdxe7 23.Nd5 $14 { +1.18/18 } ) 20...hxg6 $14 { +0.83/15 } ( { Best line is } 20...fxg6 21.Kg1 Bc8 22.Qf3 Rb7 23.Nd5 Nxd5 $14 { +0.58/15 } ) ( { White is threatening } 20...-- 21.Rxf6 fxg6 22.Rf7 Kxf7 23.Qxh7+ Ke6 24.Be2 { 9.99/18 } ) 21.Nd5 $10 { -0.00/22 } ( { More accurate is } 21.Re2 $1 Bc8 22.Qf3 Kh8 23.Bg5 Nh7 24.Bxe7 $14 { +0.86/18 } ) ( { Also playable is } 21.Qf3 Kh8 22.g4 Rf8 23.Bh6 Re8 24.g5 $14 { +0.87/18 } ) 21...Nxd5 22.Rxf7 $1 Kxf7 $8 23.Qh7+ Ke6 $8 24.exd5+ Kxd5 $8 25.Be4+ $1 Kxe4 $8 26.Qf7 $4 $10 { -0.00/25 } ( { Superior is } 26.c4 $1 Kd3 27.Qxg6+ Be4 28.Rd1+ Kc2 29.Qxe4+ Kb3 30.Qd3+ Ka2 31.b4 Rf8 32.Rd2+ Ka1 33.Qc3+ Kb1 34.Qb2# $18 { +M9 } ) ( { Black is threatening } 26.-- Kd5 27.c4+ Kc6 28.cxb5+ Kc7 29.bxa6 Bh4 { -7.97/16 } ) 26...Bf6 $8 27.Bd2+ Kd4 $8 28.Be3+ $8 Ke4 $8 29.Qb3 Kf5 $8 30.Rf1+ $8 Kg4 $8 31.Qd3 Bxg2+ $4 $18 { +299.77/24 } ( { More accurate is } 31...Rg7 $1 32.Qe2+ Kh4 33.Qf2+ Kh5 34.Qe2+ Kh4 $10 { -0.00/19 } ) ( { White is threatening } 31...-- 32.h3+ Kh4 33.Qxg6 Bxg2+ 34.Kh2 Bxf1 35.Qg4# { +M4 } ) 32.Kxg2 $8 Qa8+ 33.Kg1 $8 Bg5 34.Qe2+ $1 Kh4 35.Bf2+ $8 Kh3 $8 36.Be1 $8 Rf8 37.Qd3+ Kg4 38.Qg3+ Kh5 $8 39.Qh3+ Bh4 $8 40.Qxh4# 1-0
[/pgn]

[Uri Blass]

SF6 at 2s/pos starting at move 14. Probably there was still a defense at 31...Rg7.

[pgn]
[Event "6th Hainan Danzhou GM"]
[Site "Danzhou CHN"]
[Date "2015.07.03"]
[Round "2"]
[White "Wei Yi"]
[Black "Bruzon Batista, L."]
[Result "1-0"]
[Annotator "Stockfish 6 (2.0s/pos)"]
[BlackElo "2669"]
[ECO "B85"]
[WhiteElo "2724"]

1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.Be2 Nc6 5.d4 cxd4 6.Nxd4 Qc7 7.O-O Nf6 8.Be3 Be7 9.f4 d6 10.Kh1 O-O 11.Qe1 Nxd4 12.Bxd4 b5 13.Qg3 Bb7 14.a3 Rad8 15.Rae1 Rd7 16.Bd3 $1 Qd8 17.Qh3 $10 { -0.00/15 } ( { More accurate is } 17.Rd1 Bc6 18.Qh3 h6 19.Qg3 Nh5 20.Qg4 $10 { +0.21/16 } ) ( { Also playable is } 17.Rd1 Bc6 18.Qh3 h6 19.Qg3 Nh5 20.Qg4 $10 { +0.21/16 } ) 17...g6 $14 { +0.66/17 } ( { Best line is } 17...h6 18.Qg3 Nh5 19.Qe3 Nf6 20.Be2 d5 $10 { +0.10/15 } ) ( { Also playable is } 17...h5 18.Bxf6 Bxf6 19.Qxh5 g6 20.Qh3 Kg7 $14 { +0.32/15 } ) ( { White is threatening } 17...-- 18.Re3 g6 19.Rg3 d5 20.exd5 Bxd5 21.Be5 { 1.11/15 } ) 18.f5 e5 19.Be3 Re8 $14 { +0.90/17 } ( { Better is } 19...Kh8 20.Rd1 Bc6 21.Bg5 Rc7 22.Qh4 Bb7 $14 { +0.63/15 } ) ( { A mistake is } 19...Bc6 $2 { due to } 20.Nd5 Bxd5 21.exd5 Rb7 22.Bd2 $14 { +0.98/15 } ) ( { White is threatening } 19...-- 20.Bh6 Re8 21.Bg5 Nh5 22.f6 Bf8 23.Nd5 { 0.90/15 } ) 20.fxg6 $14 { +0.82/16 } ( { More accurate is } 20.Rf3 Bc8 21.Bg5 Nh5 22.Bxe7 Rdxe7 23.Nd5 $14 { +1.18/18 } ) ( { Also playable is } 20.Rf3 Bc8 21.Bg5 Nh5 22.Bxe7 Rdxe7 23.Nd5 $14 { +1.18/18 } ) 20...hxg6 $14 { +0.83/15 } ( { Best line is } 20...fxg6 21.Kg1 Bc8 22.Qf3 Rb7 23.Nd5 Nxd5 $14 { +0.58/15 } ) ( { White is threatening } 20...-- 21.Rxf6 fxg6 22.Rf7 Kxf7 23.Qxh7+ Ke6 24.Be2 { 9.99/18 } ) 21.Nd5 $10 { -0.00/22 } ( { More accurate is } 21.Re2 $1 Bc8 22.Qf3 Kh8 23.Bg5 Nh7 24.Bxe7 $14 { +0.86/18 } ) ( { Also playable is } 21.Qf3 Kh8 22.g4 Rf8 23.Bh6 Re8 24.g5 $14 { +0.87/18 } ) 21...Nxd5 22.Rxf7 $1 Kxf7 $8 23.Qh7+ Ke6 $8 24.exd5+ Kxd5 $8 25.Be4+ $1 Kxe4 $8 26.Qf7 $4 $10 { -0.00/25 } ( { Superior is } 26.c4 $1 Kd3 27.Qxg6+ Be4 28.Rd1+ Kc2 29.Qxe4+ Kb3 30.Qd3+ Ka2 31.b4 Rf8 32.Rd2+ Ka1 33.Qc3+ Kb1 34.Qb2# $18 { +M9 } ) ( { Black is threatening } 26.-- Kd5 27.c4+ Kc6 28.cxb5+ Kc7 29.bxa6 Bh4 { -7.97/16 } ) 26...Bf6 $8 27.Bd2+ Kd4 $8 28.Be3+ $8 Ke4 $8 29.Qb3 Kf5 $8 30.Rf1+ $8 Kg4 $8 31.Qd3 Bxg2+ $4 $18 { +299.77/24 } ( { More accurate is } 31...Rg7 $1 32.Qe2+ Kh4 33.Qf2+ Kh5 34.Qe2+ Kh4 $10 { -0.00/19 } ) ( { White is threatening } 31...-- 32.h3+ Kh4 33.Qxg6 Bxg2+ 34.Kh2 Bxf1 35.Qg4# { +M4 } ) 32.Kxg2 $8 Qa8+ 33.Kg1 $8 Bg5 34.Qe2+ $1 Kh4 35.Bf2+ $8 Kh3 $8 36.Be1 $8 Rf8 37.Qd3+ Kg4 38.Qg3+ Kh5 $8 39.Qh3+ Bh4 $8 40.Qxh4# 1-0
[/pgn]

31...Rg7 lose more slowly but still lose after 32.Qe2+ Kh4 33.Rf3

[Ferdy]

31...Rg7 lose more slowly but still lose after 32.Qe2+ Kh4 33.Rf3

Correct, I increase the time to 10s/pos at 2 threads, and now SF agreed.

[pgn]
[Event "6th Hainan Danzhou GM"]
[Site "Danzhou CHN"]
[Date "2015.07.03"]
[Round "2"]
[White "Wei Yi"]
[Black "Bruzon Batista, L."]
[Result "1-0"]
[Annotator "Stockfish 6 (10.0s/pos)"]
[BlackElo "2669"]
[ECO "B85"]
[WhiteElo "2724"]

1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.Be2 Nc6 5.d4 cxd4 6.Nxd4 Qc7 7.O-O Nf6 8.Be3 Be7 9.f4 d6 10.Kh1 O-O 11.Qe1 Nxd4 12.Bxd4 b5 13.Qg3 Bb7 14.a3 Rad8 15.Rae1 Rd7 16.Bd3 Qd8 $14 { +0.32/21 } ( { Superior is } 16...Re8 17.Re3 h6 18.Ree1 Kh8 19.Be2 Rg8 $10 { +0.09/19 } ) ( { Also playable is } 16...Re8 17.Re3 h6 18.Ree1 Kh8 19.Be2 Rg8 $10 { +0.09/19 } ) ( { White is threatening } 16...-- 17.e5 dxe5 18.Bxe5 Qc6 19.Be4 Qb6 20.f5 { 0.77/20 } ) 17.Qh3 g6 $14 { +0.82/23 } ( { Best line is } 17...h6 18.e5 dxe5 19.Bxe5 Bd6 20.Bxf6 Qxf6 $14 { +0.29/19 } ) ( { Also playable is } 17...h5 18.Bxf6 Bxf6 19.Qxh5 g6 20.Qh6 Re8 $14 { +0.26/19 } ) ( { White is threatening } 17...-- 18.Re3 g6 19.Rg3 Kh8 20.f5 e5 21.Be3 { 0.79/21 } ) 18.f5 $1 e5 19.Be3 Re8 $14 { +1.10/21 } ( { More accurate is } 19...Bc6 20.Qf3 Qa8 21.Bh6 Re8 22.Bg5 Rf8 $14 { +0.90/20 } ) ( { Also playable is } 19...Bc6 20.Qf3 Qa8 21.Bh6 Re8 22.Bg5 Rf8 $14 { +0.90/20 } ) ( { White is threatening } 19...-- 20.fxg6 fxg6 21.Bh6 Rf7 22.Qe6 Rc7 23.Bg5 { 0.79/18 } ) 20.fxg6 $14 { +0.75/24 } ( { Best line is } 20.a4 bxa4 21.Bc4 a3 22.fxg6 hxg6 23.bxa3 $14 { +1.06/20 } ) ( { Also playable is } 20.Rf3 Bc8 21.Bg5 Nh5 22.Bxe7 Rdxe7 23.Nd5 $14 { +1.07/20 } ) 20...hxg6 $14 { +0.85/22 } ( { Better is } 20...fxg6 21.a4 b4 22.Bc4+ Kh8 23.Nd5 Nxd5 $14 { +0.64/21 } ) ( { Also playable is } 20...fxg6 21.a4 b4 22.Bc4+ Kh8 23.Nd5 Nxd5 $14 { +0.64/21 } ) ( { White is threatening } 20...-- 21.Rxf6 fxg6 22.Rf7 Kxf7 23.Qxh7+ Ke6 24.Be2 { 12.68/26 } ) 21.Nd5 $10 { +0.06/30 } ( { Better is } 21.Re2 Bc8 22.Qf3 Kh8 23.Bg5 Nh5 24.Bxe7 $14 { +0.77/22 } ) ( { Also playable is } 21.Re2 Bc8 22.Qf3 Kh8 23.Bg5 Nh5 24.Bxe7 $14 { +0.77/22 } ) 21...Nxd5 22.Rxf7 $1 Kxf7 23.Qh7+ Ke6 24.exd5+ Kxd5 25.Be4+ $1 Kxe4 26.Qf7 $4 $10 { -0.00/33 } ( { Superior is } 26.c4 $1 Kd3 27.Qxg6+ Be4 28.Rd1+ Kc2 29.Qxe4+ Kb3 30.Qd3+ Ka2 31.Qb1+ Kb3 32.Rd3+ Ka4 33.Qd1+ Ka5 34.b4# $18 { +M9 } ) ( { Also playable is } 26.c4 Kd3 27.Qxg6+ Be4 28.Rd1+ Kc2 29.Qxe4+ Kb3 30.Qd3+ Ka2 31.Qb1+ Kb3 32.Rd3+ Ka4 33.Qd1+ Ka5 34.b4# $18 { +299.83/30 } ) ( { Black is threatening } 26.-- Kd5 27.c4+ Kc6 28.cxb5+ Kc7 29.bxa6 Bh4 { -8.51/20 } ) 26...Bf6 27.Bd2+ Kd4 28.Be3+ $8 Ke4 $8 29.Qb3 Kf5 30.Rf1+ Kg4 31.Qd3 Bxg2+ $4 $18 { +299.77/35 } ( { Better is } 31...Rg7 32.Qe2+ Kh4 33.h3 Qd7 34.Kh2 Bxg2 $18 { +8.53/29 } ) ( { White is threatening } 31...-- 32.h3+ Kh4 33.Qxg6 Bxg2+ 34.Kh2 Bxf1 35.Bf2# { +M4 } ) 32.Kxg2 Qa8+ 33.Kg1 Bg5 34.Qe2+ $1 Kh4 35.Bf2+ Kh3 $8 36.Be1 Rf8 37.Qd3+ Kg4 38.Qg3+ Kh5 $8 39.Qh3+ Bh4 $8 40.Qxh4# 1-0
[/pgn]

[Ferdy]

Fixed analysis, "best/superior line" and "also playable" variations were the same.

SF at 5s/pos.

[pgn]
[Event "6th Hainan Danzhou GM"]
[Site "Danzhou CHN"]
[Date "2015.07.03"]
[Round "2"]
[White "Wei Yi"]
[Black "Bruzon Batista, L."]
[Result "1-0"]
[Annotator "Stockfish 6 (5.0s/pos)"]
[BlackElo "2669"]
[ECO "B85"]
[WhiteElo "2724"]

1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.Be2 Nc6 5.d4 cxd4 6.Nxd4 Qc7 7.O-O Nf6 8.Be3 Be7 9.f4 d6 10.Kh1 O-O 11.Qe1 Nxd4 12.Bxd4 b5 13.Qg3 Bb7 14.a3 $1 Rad8 15.Rae1 Rd7 16.Bd3 Qd8 17.Qh3 $1 g6 $14 { +0.65/22 } ( { Superior is } 17...h6 18.Rf3 Re8 19.Rg3 Kh8 20.Be3 Bf8 $10 { +0.24/18 } ) ( { Also playable is } 17...Re8 18.Re3 h6 19.Rg3 Kh8 20.Be3 Bf8 $14 { +0.39/18 } ) ( { White is threatening } 17...-- 18.Re3 g6 19.Rg3 d5 20.exd5 Bxd5 21.Be5 { 0.75/18 } ) 18.f5 $14 { +1.03/21 } ( { But not } 18.Re3 $6 Re8 19.Rg3 Bf8 20.f5 Bg7 $14 { +0.29/20 } ) 18...e5 19.Be3 Re8 $14 { +1.21/21 } ( { Best line is } 19...Kh8 20.Nd5 $14 { +0.82/18 } ) ( { Also playable is } 19...Bc6 20.Bh6 Re8 21.Nd5 Bxd5 22.exd5 Rc7 $14 { +0.97/18 } ) ( { White is threatening } 19...-- 20.Re2 Bc6 21.Ref2 Rb7 22.Bg5 Bd7 23.Bh6 { 1.24/18 } ) 20.fxg6 $14 { +0.65/19 } ( { Superior is } 20.Rf3 Bc8 21.Bg5 Nh5 22.Bxe7 Rdxe7 23.Nd5 $14 { +1.20/18 } ) ( { Also playable is } 20.Bg5 Nh5 21.f6 Bf8 22.Nd5 h6 23.Bd2 $14 { +0.90/18 } ) 20...hxg6 21.Nd5 $10 { -0.00/28 } ( { Superior is } 21.a4 $1 bxa4 22.Bc4 d5 23.exd5 Nh5 24.Rd1 $14 { +0.95/21 } ) ( { Also playable is } 21.Qf3 d5 22.exd5 Bxd5 23.Nxd5 Rxd5 24.g4 $14 { +0.90/21 } ) 21...Nxd5 22.Rxf7 $10 { -0.00/29 } ( { Bad is } 22.exd5 $2 Bxd5 23.Bf5 Rc7 24.Bb6 gxf5 $15 { -1.04/26 } ) 22...Kxf7 $8 23.Qh7+ Ke6 $8 24.exd5+ Kxd5 $8 25.Be4+ Kxe4 26.Qf7 $4 $10 { -0.00/32 } ( { Better is } 26.c4 $1 Kd3 27.Qxg6+ Be4 28.Rd1+ Kc2 29.Qxe4+ Kb3 30.Qd3+ Ka2 31.Qb1+ Kb3 32.Rd3+ Ka4 33.Qc2+ Ka5 34.b4# $18 { +M9 } ) ( { Black is threatening } 26.-- Kd5 27.c4+ Kc6 28.cxb5+ Kc7 29.Qh3 axb5 { -8.51/20 } ) 26...Bf6 $8 27.Bd2+ Kd4 $8 28.Be3+ $8 Ke4 $8 29.Qb3 $8 Kf5 $8 30.Rf1+ $8 Kg4 $8 31.Qd3 $8 Bxg2+ $4 $18 { +299.77/32 } ( { Best line is } 31...Rg7 32.Qe2+ Kh4 33.h3 Qd7 34.Kh2 Bxg2 $18 { +7.97/26 } ) ( { White is threatening } 31...-- 32.h3+ Kh4 33.Qxg6 Bxg2+ 34.Kh2 Bxf1 35.Bf2# { +M4 } ) 32.Kxg2 $8 Qa8+ 33.Kg1 $8 Bg5 34.Qe2+ $8 Kh4 35.Bf2+ $8 Kh3 $8 36.Be1 $8 Rf8 37.Qd3+ Kg4 38.Qg3+ Kh5 $8 39.Qh3+ Bh4 $8 40.Qxh4# 1-0
[/pgn]