White to Move
[pgn]
[Event "Mephisto TM London 68040 (experimental) (mess 0.220)-Tasc ChessSystem R40 (Gideon 3.1, prototype) (mess 0.220) match (1 games, 180 seconds per move)"]
[Site "?"]
[Date "2022.04.20"]
[Round "1"]
[White "Mephisto TM London 68040 (experimental) (mess 0.220)"]
[Black "Tasc ChessSystem R40 (Gideon 3.1, prototype) (mess 0.220)"]
[Result "1-0"]
[EventDate "2022.04.20"]
[ECO "D18"]
[PlyCount "251"]
1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.e3 e6 7.Bxc4 Bb4 8.O-O O-O
9.Nh4 Nbd7 10.f3 Bg6 11.Nxg6 hxg6 12.Qc2 $6 {Stockfish 15: -0.44/31 -0.44/31
Stockfish 15:} ( 12.Qb3 {Stockfish 15: 0.00/33 0.00/33 Stockfish 15:} 12...Qa5
13.e4 e5 14.Na2 Be7 15.Qc3 Qb6 16.Be3 exd4 17.Bxd4 Bc5 18.Rad1 a5 19.Kh1 Bxd4
20.Rxd4 Ne5 21.Be2 g5 22.Nc1 Ng6 23.Nb3 Rfe8 24.Bc4 Ne5 25.Be2 ) 12...c5 $6
{Stockfish 15: +0.05/35 0.05/35 Stockfish 15:} ( {Theoretical move is} 12...Rc8
$12 ) ( 12...Qe7 {Stockfish 15: -0.44/31 -0.44/31 Stockfish 15:} 13.Na2 Ba5
14.Kh1 Rfd8 15.b4 Bc7 16.a5 e5 17.Bb2 exd4 18.Bxd4 Nf8 19.Rad1 Ne6 20.Bb2 Nd5
21.Qb3 b6 22.a6 Rac8 23.f4 b5 24.Bxd5 Rxd5 25.Rxd5 cxd5 26.Qxd5 ) ( {Relevant:}
12...Qa5 13.Rd1 Rac8 14.e4 c5 15.d5 Bxc3 16.bxc3 exd5 17.Bxd5 Nxd5 18.exd5 c4
19.Ba3 Rfe8 20.Rd4 Re3 21.Bb4 Qa6 22.a5 Rce8 23.d6 Qb5 24.Qf2 Re2 25.Qg3 R8e3
26.h4 Rd3 27.Rd1 Rxd1+ 28.Rxd1 Qf5 29.Re1 Qd3 30.Rxe2 Qxe2 31.Qg4 Qe1+ 32.Kh2
Qe6 33.Qg5 Qe5+ 34.f4 Qxg5 35.fxg5 f5 36.gxf6 Nxf6 37.Kg3 Kf7 38.Kf4 Nd5+
39.Ke4 Nxb4 40.cxb4 b5 41.axb6 axb6 42.b5 {Korobov,A (2674)-Prohaszka,P (2593)
Gjakova 2016 1/2-1/2} ) 13.Na2 $1 {[Diagram]} 13...Rc8 $6 $146 {Stockfish 15:
+0.87/35 0.87/35 Stockfish 15:} ( 13...a5 {Stockfish 15: +0.24/35 0.24/35
Stockfish 15:} 14.Nxb4 axb4 15.dxc5 Nxc5 16.b3 Nd5 17.Bd2 Qa5 18.Rfc1 Rfd8
19.Bf1 Rac8 20.Qb1 Nd7 21.Rxc8 Rxc8 22.Qe1 Nc5 23.Rc1 Qd8 24.Bc4 Nb6 25.Bxb4
Nxc4 26.Rxc4 Nxb3 27.Rxc8 Qxc8 28.Qc3 Qxc3 29.Bxc3 Nc5 30.a5 Kh7 31.Kh1 f5
32.Bd2 ) ( {Predecessor:} 13...Qb6 14.Nxb4 Qxb4 15.b3 Qb6 16.Ba3 Rfd8 17.dxc5
Nxc5 18.a5 Qc7 19.Rfc1 Qe5 20.Qe2 Rac8 21.b4 Ncd7 22.Bb2 Qd6 23.Rab1 Ne5 24.Bd4
Nc6 25.Rd1 Nxd4 26.Rxd4 Qe7 27.Qb2 Rxd4 28.Qxd4 Qd7 29.Qxd7 Nxd7 30.Bb5 Nf6
31.e4 a6 32.Be2 Kf8 33.b5 axb5 34.Rxb5 Rc7 35.Kf2 Ke7 36.Ke3 Nd7 37.Kd4 Nb8
38.Rc5 {1/2-1/2 (38) Pedersen,D-Johansson,P Aarhus 1991} ) 14.Nxb4 cxb4 15.Qd3
Qc7 16.Ba2 $6 {Stockfish 15: +0.47/33 0.47/33 Stockfish 15:} ( 16.Bb3
{Stockfish 15: +0.85/33 0.85/33 Stockfish 15:} 16...Rfd8 17.Qb5 Nb8 18.Qxb4 Nc6
19.Qc5 b6 20.Qc4 Qd6 21.Qb5 e5 22.d5 Nxd5 23.Rd1 Ncb4 24.Bd2 a6 25.Bxb4 Qxb4
26.Qxb4 Nxb4 27.Rxd8+ Rxd8 28.Rc1 g5 29.Kf1 Kf8 30.Ke2 Re8 31.Rd1 b5 32.axb5
axb5 33.Rd7 Re7 34.Rd8+ Re8 ) 16...Nb6 $6 {Stockfish 15: +0.92/31 0.92/31
Stockfish 15:} ( 16...Rfd8 {Stockfish 15: +0.47/33 0.47/33 Stockfish 15:}
17.Qb3 Qd6 18.a5 Nb8 19.Bd2 Nc6 20.Rac1 Nd5 21.Qa4 e5 22.a6 Nb6 23.Qb3 Rc7
24.Qd3 exd4 25.axb7 Rxb7 26.e4 Ne5 27.Qa6 Qb8 28.Rfd1 Nbd7 29.f4 b3 30.Bb1 Rb6
31.Qa3 Rc6 ) 17.Bd2 $6 {Stockfish 15: +0.41/39 0.41/39 Stockfish 15:} ( 17.Qb5
{Stockfish 15: +0.92/31 0.92/31 Stockfish 15:} 17...Nfd5 18.e4 a6 19.Qa5 Ne7
20.Qxb4 Nc6 21.Qd2 Nxa4 22.Bxe6 fxe6 23.Rxa4 Qb6 24.Qf2 Qb5 25.Ra3 e5 26.dxe5
Nxe5 27.Qe3 Rc2 28.Qb3+ Qxb3 29.Rxb3 Rf7 30.Rb6 Nd3 31.Bg5 Rxb2 32.Rd6 Ne5
33.Rc1 Rxf3 34.gxf3 Nxf3+ 35.Kf1 Nxh2+ 36.Ke1 ) 17...Qc2 18.Bb1 {[Diagram]}
18...Qxd3 ( {Tempting but wrong would be} 18...Qxb2 {, because of Ra2 gaining
the Queen.} ) 19.Bxd3 a5 20.Rfc1 e5 $1 21.Rxc8 $6 {Stockfish 15: +0.31/39
0.31/39 Stockfish 15:} ( 21.Bb5 {Stockfish 15: +0.77/32 0.77/32 Stockfish 15:}
21...exd4 22.exd4 Nfd5 23.Rc5 Rfd8 24.Rac1 Ne7 25.Bf4 Nbd5 26.Bd6 Ra8 27.Bxe7
Nxe7 28.Rc7 Nf5 29.Bc4 Rxd4 30.Bxf7+ Kh7 31.Re1 Rd2 32.Re6 Nh4 33.Re4 g5 34.Rg4
Rd1+ 35.Kf2 Rd2+ 36.Kg3 Rxg2+ 37.Kh3 Rxg4 38.Kxg4 Rd8 39.f4 Rd4 40.Kxg5 Nf3+
41.Kf5 Kh6 ) 21...Rxc8 22.Be1 $6 {Stockfish 15: 0.00/45 0.00/45 Stockfish 15:}
( 22.Kf2 {Stockfish 15: +0.42/33 0.42/33 Stockfish 15:} 22...Rd8 23.Bb5 exd4
24.exd4 Rc8 25.b3 Rc2 26.Ke1 Nfd5 27.Bd3 Rb2 28.Kd1 Rxb3 29.Kc2 Ra3 30.Rxa3
bxa3 31.Bb5 Nb4+ 32.Kb3 a2 33.Kb2 N6d5 34.Bc4 Kf8 35.Bxd5 a1=Q+ 36.Kxa1 Nxd5
37.Ka2 Ke7 38.Kb3 Kd6 39.Bxa5 Ne3 40.g3 Kd5 41.Bc3 g5 42.Kb4 Kc6 43.Bb2 f6
44.Bc1 Nf1 45.h4 Nxg3 46.hxg5 Ne2 ) 22...exd4 23.exd4 Nfd5 24.Bg3 Kh7 25.h3 f5
26.Kh2 $6 {Stockfish 15: -0.64/33 -0.64/33 Stockfish 15:} ( 26.Kf2 {Stockfish
15: 0.00/40 0.00/40 Stockfish 15:} 26...f4 27.Bh4 Ne3 28.Bg5 Nec4 29.Be4 Nxb2
30.h4 Kh8 31.Bxf4 N2xa4 32.h5 gxh5 33.Rh1 Nc3 34.Rxh5+ Kg8 35.Bh7+ Kf7 36.Rf5+
Ke7 37.Re5+ Kf6 38.Rf5+ ) 26...Rc6 $6 {Stockfish 15: -0.20/36 -0.20/36 Stockfish
15:} ( 26...Nc4 {Stockfish 15: -0.64/33 -0.64/33 Stockfish 15:} 27.Rb1 Nce3
28.Bd6 b3 29.Kg3 Nc2 30.Rd1 Rd8 31.Be5 Ncb4 32.Kf2 Rc8 33.Ke2 Nxd3 34.Kxd3 g5
35.g3 Nb6 36.h4 Nxa4 37.d5 Nb6 38.d6 Rc5 39.Re1 Rd5+ 40.Kc3 gxh4 41.gxh4 )
27.Kh1 $6 {Stockfish 15: -0.74/35 -0.74/35 Stockfish 15:} ( 27.Be5 {Stockfish
15: -0.20/36 -0.20/36 Stockfish 15:} 27...Nc4 28.Rb1 b3 29.h4 Nb4 30.Bxc4 Rxc4
31.Rd1 Nd5 32.Rd3 Rxa4 33.Rxb3 Rb4 34.Rxb4 Nxb4 35.Bd6 Nd5 36.Kg3 g5 37.hxg5
Kg6 38.Be5 Kf7 39.Kf2 a4 40.Ke2 g6 41.g4 fxg4 42.fxg4 b5 43.Kd3 Ke6 44.Bg7 Nb6
45.Ke4 Nd7 46.d5+ Kd6 47.Kd4 b4 48.Kc4 a3 49.Kxb4 a2 ) 27...Nc4 28.Rb1 b3 $6
{Stockfish 15: -0.26/37 -0.26/37 Stockfish 15:} ( 28...Kg8 {Stockfish 15:
-0.72/36 -0.72/36 Stockfish 15:} 29.Be1 Nf4 30.Bf1 Nxb2 31.Bxb4 axb4 32.Rxb2
Nd5 33.Kg1 Kf7 34.Kf2 Ke6 35.a5 Rc1 36.Be2 g5 37.Bd3 g6 38.Rc2 Rd1 39.Ke2 Ra1
40.Rb2 Rxa5 41.Bc4 b5 42.Bxd5+ Kxd5 43.Rxb4 Ra2+ 44.Ke3 Kc6 45.Rb3 Rxg2 46.Rc3+
Kb6 47.Rc8 Rh2 48.d5 Rxh3 49.d6 ) 29.Be1 Nf4 30.Bxc4 Rxc4 31.Bxa5 Rxa4 $6
{Stockfish 15: -0.24/36 -0.24/36 Stockfish 15:} ( 31...Rc2 {Stockfish 15:
-0.76/32 -0.76/32 Stockfish 15:} 32.h4 g5 33.hxg5 Nd5 34.Kh2 Kg6 35.Re1 Rxb2
36.Re5 Nf4 37.Rb5 Rxg2+ 38.Kh1 b2 39.Bc3 Kxg5 40.Bxb2 Rd2 41.Rxb7 Nd3 42.Bc3
Rc2 43.Ba5 Kh4 44.Rxg7 Kh3 45.Rc7 Rb2 46.Rh7+ Kg3 47.Bc7+ f4 ) 32.Bc7 $6
{Stockfish 15: -1.10/29 -1.10/29 Stockfish 15:} ( 32.Bd2 {Stockfish 15: -0.24/36
-0.24/36 Stockfish 15:} 32...Nd5 33.Kh2 b5 34.Bg5 Ra2 35.h4 f4 36.Kh3 Kg8
37.Kg4 Ne3+ 38.Kxf4 Nc4 39.d5 Kf7 40.Rd1 Nxb2 41.Rb1 Nd3+ 42.Ke3 Nc5 43.Bf4
Rxg2 44.Bd6 Rc2 45.Bxc5 Rxc5 46.Rxb3 Rxd5 47.Rb4 Ke6 48.Rg4 Re5+ 49.Kf2 g5
50.hxg5 Kf5 51.Rb4 ) 32...Rxd4 $2 {Stockfish 15: 0.00/63 0.00/63 Stockfish 15:}
( 32...Nd5 {Stockfish 15: -1.10/29 -1.10/29 Stockfish 15:} 33.Rc1 g5 34.Bd8 Kg6
35.Re1 Nf4 36.Bc7 Nd3 37.Re6+ Kf7 38.d5 Rd4 39.Rb6 Rb4 40.Rxb4 Nxb4 41.Be5 Nxd5
42.Kg1 g6 43.Bd4 Nf4 44.Kf2 Ke6 45.Kf1 Kd5 46.Bf6 g4 47.hxg4 fxg4 48.fxg4 Ke4
49.Kf2 Nd5 50.Bg7 Kd3 51.Kf3 ) 33.Bxf4 Rxf4 34.Rd1 Ra4 35.Rd3 Rb4 36.Rd5 Kh6
37.Kh2 b6 38.Re5 Kg5 39.Re6 b5 40.Rb6 Kh5 41.Rb7 Kh6 42.Rb6 Kh7 43.Kh1 g5
44.Kh2 Kg8 45.Kg3 $1 Kf7 46.Rb7+ Kg6 47.Rb6+ Kh5 48.Kh2 f4 49.g4+ $1 fxg3+
50.Kxg3 g6 51.Rb8 Kh6 52.Rb7 Rd4 53.Rxb5 Rd3 54.Rb7 Re3 55.Kf2 Rd3 56.Ke2 Rd4
57.Rxb3 Kh5 58.Re3 Rb4 59.b3 Kh6 60.Kf1 Kg7 61.Kf2 Kf7 62.Kg2 Rb8 63.Kg3 Rb6
64.f4 Kf6 65.fxg5+ Kxg5 66.Rc3 Kf5 67.Kf2 Ke4 68.Ke2 g5 69.Rg3 Kf4 70.Rd3 Rh6
71.Kd2 Ke4 72.b4 Rb6 73.Rg3 Kf4 74.Rb3 Ke4 75.b5 Kd4 76.Rg3 Rh6 77.Ke2 Re6+ $1
78.Kf3 Re5 79.b6 Rb5 80.Rg1 Rb3+ 81.Kg4 Rxb6 82.Kxg5 Rb5+ $4 {Stockfish 15:
#52/53 #52/53 Stockfish 15:} ( 82...Rb8 {Stockfish 15: 0.00/69 0.00/69 Stockfish
15:} 83.Re1 Rg8+ 84.Kf5 Rf8+ 85.Kg4 Rg8+ 86.Kf3 Rh8 87.Kg2 Rg8+ 88.Kf2 Rb8
89.Kg3 Rg8+ 90.Kf3 ) 83.Kf4 Rb8 84.Rd1+ Kc3 85.h4 Rb4+ 86.Kg3 Rb3 87.Rd7 Kc2+
88.Kg4 Rb4+ 89.Kg5 Rb5+ 90.Kg6 Rb6+ 91.Kg7 Rb5 92.Kh6 Rb6+ 93.Kh7 Rb5 94.Rd4 $1
Rb7+ 95.Kg6 Rb6+ 96.Kg5 Rb5+ 97.Kg4 Kc3 98.Rd6 Rb8 99.h5 Rh8 100.h6 Kb4 101.Kh5
Kc4 102.Kg6 Rg8+ 103.Kf7 Rh8 104.Kg7 Ra8 105.h7 Ra7+ 106.Kh6 Ra8 107.Rg6 $1 Kd3
108.Rg8 Ra1 109.Rg3+ Ke4 110.Rg5 $1 Ra8 111.Rg8 Ra2 112.h8=Q Rh2+ 113.Kg5 Rxh8
114.Rxh8 Ke5 115.Rd8 Ke6 116.Kf4 Ke7 117.Rd5 Ke6 118.Rd2 Kf6 119.Re2 Kg6
120.Re6+ Kg7 121.Kg5 Kf7 122.Re1 Kg7 123.Rf1 Kh7 124.Kf6 Kg8 125.Rh1 Kf8
126.Rh8# {White loses 0.06 pawn per move (8 inaccuracies), Black loses 0.08 pawn
per move (1 blunder, 1 mistake, 6 inaccuracies). White loses 0. 06 pawn per move
(8 inaccuracies), Black loses 0.08 pawn per move (1 blunder, 1 mistake, 6
inaccuracies).} 1-0
[/pgn]