Gambit do DOT Work against top engines .......

[Chessqueen]

My concusion is that in order to give a gambit, the engine giving the free pawn has to be at least 40 points more than the engine getting the extra pawn in order to draw in mos of the gambits between engines.

[pgn][Event "Computer chess game"]
[Date "2024.03.12"]
[Round "?"]
[White "Stockfish-windows-x86-64-avx2"]
[Black "Caissa-1.17-x64-avx2"]
[Result "1/2-1/2"]
[BlackElo "3600"]
[ECO "D06"]
[Opening "Queen's Gambit"]
[Time "18:55:21"]
[WhiteElo "3640"]
[TimeControl "120+1"]
[Termination "unterminated"]
[PlyCount "3"]
[WhiteType "program"]
[BlackType "program"]

1. e4 e5 2. d4 exd4 3. Bd3 Nc6 {(Nb8-c6 c2-c3 Bf8-c5 Ng1-f3 d4xc3 O-O d7-d6
Nb1xc3 Ng8-e7 h2-h3 O-O Nc3-a4 b7-b6 a2-a3 a7-a5 Na4xc5 b6xc5 e4-e5 Bc8-f5
Bc1-g5 Bf5xd3 Qd1xd3 h7-h6 Bg5-h4 Qd8-d7 e5xd6 c7xd6 Ra1-c1 Ra8-a7 Rf1-d1
Rf8-d8 Rd1-d2 g7-g5 Bh4-g3 Ne7-f5 Rc1-d1 Qd7-e6 Rd1-e1 Qe6-f6 Qd3-b5 Rd8-c8
Kg1-h2) +0.55/29 24} 4. c3 {(c2-c3 Bf8-c5 Ng1-f3 d4xc3 O-O d7-d6 Nb1xc3
Ng8-e7 h2-h3 O-O Nc3-a4 a7-a5 Na4xc5 d6xc5 Bc1-f4 Ne7-g6 Bf4-g3 Qd8-e7
Qd1-e2 Rf8-d8 Bd3-c4 a5-a4 a2-a3 Nc6-d4 Nf3xd4 Rd8xd4 Ra1-d1 Bc8-e6 Rd1xd4
c5xd4 Bc4-d3 c7-c5 f2-f4 Be6-d7 e4-e5 f7-f5 Qe2-c2 Ra8-f8 h3-h4 b7-b5 h4-h5
Ng6-h8) -0.41/39 198} dxc3 {(d4xc3 Nb1xc3 Bf8-c5 Ng1-e2 a7-a5 O-O d7-d6
h2-h3 Nc6-e5 Bd3-c2 g7-g5 Bc2-b3 g5-g4 Bc1-f4 g4xh3 Bf4xe5 d6xe5 Bb3xf7+
Ke8-e7 Qd1-b3) +0.75/33 112} 5. Nxc3 {(Nb1xc3 Bf8-c5 Ng1-e2 a7-a5 O-O
Ng8-e7 Kg1-h1 O-O Ne2-g3 d7-d6 b2-b3 Bc5-d4 Bc1-b2 f7-f5 f2-f4 f5xe4 Bd3xe4
d6-d5 Be4-f3 Bc8-e6 Qd1-e2 Qd8-d7 Rf1-e1 Bd4xc3 Bb2xc3 d5-d4 Qe2xe6+ Qd7xe6
Re1xe6 d4xc3 Ra1-c1 Ra8-d8 Ng3-e2 g7-g6 Rc1xc3 Rd8-d1+ Ne2-g1 Rd1-a1)
-0.37/32 14} Bc5 {(Bf8-c5 Ng1-e2 a7-a5 O-O Ng8-e7 Kg1-h1 O-O b2-b3 Nc6-e5
Bd3-c2 d7-d6 h2-h3 Ne7-c6 f2-f4 Ne5-g4 Qd1-e1 Nc6-b4 Bc2-b1 Ng4-e3 Bc1xe3)
+0.49/32 70} 6. Nge2 {(Ng1-e2 Ng8-e7 O-O a7-a5 Kg1-h1 O-O Ne2-g3 d7-d6
b2-b3 Bc5-d4 Bc1-b2 d6-d5 Qd1-d2 d5xe4 Bd3xe4 f7-f5 Be4-f3 f5-f4 Ng3-e2
Bd4-e5 Ra1-d1 Qd8xd2 Rd1xd2 Bc8-f5 Rf1-d1 Kg8-f7 Nc3-a4 Be5xb2 Na4xb2
Ra8-d8 Ne2xf4 Rd8xd2 Rd1xd2 b7-b6 Bf3xc6 Ne7xc6 Kh1-g1 Bf5-b1 Rd2-d7+
Kf7-e8 Rd7xc7 Rf8xf4 Rc7xc6 Rf4-b4) -0.35/34 20} Nge7 {(a7-a5 O-O Ng8-e7
b2-b3 Nc6-e5 Bd3-c2 Ne7-c6 Bc1-f4 d7-d6 a2-a3 O-O h2-h3 f7-f5 Bf4-e3 Bc5xe3
f2xe3 Nc6-e7 Qd1-d2 Rf8-f7 Ra1-d1) +0.44/34 109} 7. O-O {(O-O a7-a5 Ne2-g3
d7-d6 Kg1-h1 O-O f2-f4 Kg8-h8 b2-b3 f7-f5 Bc1-b2 Bc5-d4 Qd1-d2 Nc6-b4
Bd3-e2 c7-c5 Nc3-b5 Bd4xb2 Qd2xb2 f5xe4 Ng3xe4 Ne7-f5 Ne4xd6 Nf5xd6 Ra1-d1
Rf8-f6 Qb2-e5 Ra8-a6 a2-a3 Nb4-c2 Rd1-d2 Rf6-e6 Qe5-g5 Qd8-f8 Nb5xd6 Ra6xd6
Rd2xc2 b7-b6 Be2-c4 Re6-f6 a3-a4 h7-h6 Qg5-g3 Rd6-d4 h2-h3 Bc8-d7 f4-f5
Bd7xf5 Rc2-e2 Bf5-e4 Rf1xf6 Qf8xf6 Qg3-b8+ Rd4-d8 Qb8-c7) -0.30/37 90} d6
{(d7-d6 Nc3-a4 O-O Bc1-f4 Bc8-g4 h2-h3 Bg4xe2 Qd1xe2 Nc6-d4 Qe2-d2 Qd8-d7
Na4xc5 d6xc5 Ra1-d1 b7-b6 Bf4-e3 Ne7-c6 f2-f4 f7-f6 a2-a3) +0.39/36 122} 8.
Na4 {(Nc3-a4 O-O a2-a3 Bc8-g4 h2-h3 Bg4xe2 Qd1xe2 Bc5-d4 Bc1-g5 h7-h6
Bg5-e3 Bd4xe3 Qe2xe3 Nc6-e5 Bd3-c2 b7-b5 f2-f4 b5xa4 f4xe5 d6xe5 Bc2xa4
Ne7-g6 Qe3-c5 Ra8-b8 Ra1-d1 Qd8-g5 Rf1-f5 Qg5-h4 b2-b4 Qh4xe4 Rf5-f2 Rb8-b6
Kg1-h2 Rb6-d6 Qc5xc7) -0.35/33 21} O-O {(O-O Bc1-f4 Bc8-g4 h2-h3 Bg4xe2
Bd3xe2 Bc5-d4 Ra1-c1 a7-a6 Bf4-h2 Kg8-h8 Na4-c3 f7-f5 Nc3-d5 Bd4-e5 Bh2xe5
d6xe5 Nd5xe7 Qd8xe7 e4xf5) +0.39/32 26} 9. a3 {(a2-a3 a7-a5 Na4xc5 d6xc5
Bc1-f4 Bc8-g4 f2-f3 Bg4-e6 Qd1-c2 a5-a4 Bd3-b5 Nc6-d4 Ne2xd4 Qd8xd4+ Qc2-f2
Qd4xf2+ Kg1xf2 c7-c6 Bb5-e2 Rf8-d8 Bf4-e3 b7-b6 Ra1-d1 Ne7-g6 Rd1xd8+
Ra8xd8 Rf1-d1 Rd8xd1 Be2xd1 Be6-b3 Bd1-e2 f7-f6 f3-f4 Kg8-f8 Be2-h5 Ng6-h8
Bh5-f3 Nh8-f7 e4-e5 f6xe5 Bf3xc6 Kf8-e7 Be3-d2) -0.30/34 29} Bg4 {(Bc8-g4
h2-h3 Bg4xe2 Qd1xe2 Bc5-d4 Bc1-e3 Bd4xe3 Qe2xe3 Nc6-e5 Bd3-c2 c7-c5 Ra1-d1
Qd8-c7 Na4-c3 Ra8-d8 Bc2-b1 Ne5-c6 Qe3-d3 Nc6-d4 b2-b4) +0.52/33 20} 10. h3
{(h2-h3 Bg4xe2 Qd1xe2 Bc5-d4 Bc1-e3 Bd4xe3 Qe2xe3 Nc6-e5 Bd3-c2 c7-c5
Ra1-d1 b7-b5 Na4-c3 Ra8-b8 f2-f4 Ne5-c4 Qe3-c1 b5-b4 Nc3-a4 b4xa3 b2xa3
Qd8-a5 f4-f5 Nc4-e5 f5-f6 g7xf6 Rd1xd6 Rf8-d8 Rf1xf6 Rd8xd6 Rf6xd6 c5-c4
Qc1-d2) -0.25/35 17} Bxe2 {(Bg4xe2 Qd1xe2 Bc5-d4 Na4-c3 Kg8-h8 Bc1-g5 f7-f6
Bg5-e3 Bd4xe3 Qe2xe3 f6-f5 f2-f4 d6-d5 Nc3xd5 Ne7xd5 e4xd5 Qd8xd5 Ra1-d1
Ra8-d8 Qe3-c1) +0.47/30 12} 11. Qxe2 {(Qd1xe2 Bc5-d4 Bc1-g5 Nc6-e5 Bd3-c2
h7-h6 Bg5-e3 Bd4xe3 Qe2xe3 b7-b5 f2-f4 b5xa4 f4xe5 d6xe5 Bc2xa4 Ne7-g6
Ra1-d1 Qd8-h4 Qe3-c5 Ra8-b8 b2-b4 Rb8-d8 Rd1xd8 Qh4xd8 Ba4-b5 Qd8-g5 Rf1-f5
Qg5-h4 Qc5-e3 c7-c6 Bb5-c4 Qh4-e7 Kg1-h2 Kg8-h7 Rf5-f2 f7-f6 Rf2-d2 Rf8-d8
Rd2xd8 Qe7xd8 Qe3xa7 Qd8-d2) -0.22/31 11} Bd4 {(Bc5-d4 Na4-c3 Kg8-h8 Bc1-f4
Nc6-e5 Bd3-c2 a7-a6 Ra1-d1 Bd4xc3 b2xc3 Qd8-e8 Bf4-g3 Qe8-c6 f2-f4 Qc6xc3
Kg1-h2 Qc3-c4 Qe2-h5 Qc4xc2 f4xe5) +0.49/31 20} 12. Bg5 {(Bc1-g5 Nc6-e5
Bd3-c2 h7-h6 Bg5-e3 c7-c5 Be3xd4 c5xd4 f2-f4 Ne5-g6 Ra1-d1 Ne7-c6 b2-b4
Qd8-h4 b4-b5 Nc6-a5 Qe2-f2 Rf8-c8 Qf2xh4 Ng6xh4 Rf1-f2 Nh4-g6 Rd1xd4 Ng6xf4
Rd4xd6 g7-g5 Kg1-h2 Kg8-g7 b5-b6 Na5-c4 Rd6-d7 a7xb6 Bc2-b3 Nc4-e5 Rd7xb7
Rc8-b8 Rb7xb8 Ra8xb8 Na4-c3) -0.19/35 39} h6 {(h7-h6 Bg5-e3 Bd4xe3 Qe2xe3
Nc6-e5 Bd3-c2 c7-c5 Ra1-d1 b7-b5 Na4-c3 Ra8-b8 f2-f4 Ne5-c4 Qe3-c1 b5-b4
Nc3-e2 b4xa3 b2xa3 Qd8-a5 Rf1-f3) +0.37/32 30} 13. Be3 {(Bg5-e3 Ne7-g6
Na4-c3 Rf8-e8 Ra1-c1 Nc6-e5 Bd3-b1 Bd4xe3 Qe2xe3 c7-c6 Bb1-a2 b7-b5 Rc1-d1
Ne5-c4 Qe3-g3 Qd8-b6 Ba2xc4 b5xc4 Rd1xd6 Qb6xb2 Rd6xc6 Ra8-c8 Rc6xc8 Re8xc8
a3-a4 Ng6-f4 Qg3xf4 Qb2xc3 Qf4-f5 Rc8-f8 Qf5-c5 a7-a6 Qc5-c6 Qc3-c2 Qc6xa6
c4-c3 a4-a5 Qc2xe4 Qa6-d6 Rf8-e8 Qd6-c7) -0.15/31 8} Bxe3 {(Bd4xe3 Qe2xe3
Nc6-e5 Bd3-c2 c7-c5 Ra1-d1 b7-b5 Na4-c3 Ne7-c6 Nc3xb5 Ra8-b8 Nb5xd6 Nc6-d4
Nd6-f5 Ne5-c4 Qe3-e1 Nc4xb2 Rd1-d2 Nb2-c4 Rd2-d1) +0.31/31 45} 14. Qxe3
{(Qe2xe3 Ne7-g6 Na4-c3 Nc6-e5 Bd3-b1 c7-c6 Bb1-a2 Qd8-b6 Qe3xb6 a7xb6
Ra1-d1 Ng6-f4 Rd1xd6 Rf8-d8 Rd6xd8+ Ra8xd8 Rf1-d1 Rd8xd1+ Nc3xd1 h6-h5
h3-h4 Nf4-g6 g2-g3 Ne5-f3+ Kg1-g2 Nf3-d2 Nd1-c3 Ng6-e5 f2-f4 Ne5-d3 b2-b4
Nd3-c1 e4-e5 Nc1xa2 Nc3xa2 Kg8-h7 b4-b5 Kh7-g6 Na2-b4 c6-c5 Nb4-d5 Kg6-f5
Nd5xb6 c5-c4 Kg2-f2 c4-c3 Kf2-e2 Kf5-e4 Nb6-c8 Ke4-d4 Nc8-d6 Nd2-f1 Ke2-d1
b7-b6 Kd1-c2 Nf1-e3+ Kc2-c1 Kd4-d3 a3-a4 Ne3-f1) -0.16/33 13} Rb8 {(Ra8-b8
Na4-c3 d6-d5 Nc3xd5 Ne7xd5 e4xd5 Qd8xd5 Bd3-e4 Qd5-d4 Be4xc6 Qd4xe3 f2xe3
b7xc6 b2-b4 c6-c5 Ra1-c1 c5xb4 a3xb4 Rb8-b7 Rf1-d1) +0.22/35 31} 15. Nc3
{(Na4-c3 d6-d5 Nc3xd5 Ne7xd5 e4xd5 Qd8xd5 Bd3-e4 Qd5-d4 Be4xc6 Qd4xe3 f2xe3
b7xc6 Rf1-f2 Rf8-e8 Ra1-c1 Re8-e6 Rc1-c5 Rb8-b6 Rf2-c2 Kg8-f8 Kg1-f2 Kf8-e7
b2-b4 Rb6-a6 Rc2-c3 Ke7-d7 Kf2-e2 g7-g6 h3-h4 h6-h5 Ke2-f3 Re6-f6+ Kf3-g3
Ra6-b6 e3-e4 Rb6-b5) -0.11/40 19} d5 {(d6-d5 Nc3xd5 Ne7xd5 e4xd5 Qd8xd5
Bd3-e4 Qd5-d4 Be4xc6 Qd4xe3 f2xe3 b7xc6 b2-b4 c6-c5 b4xc5 Rb8-b5 Ra1-d1
f7-f6 Rf1-f5 Rb5-b3 e3-e4) +0.22/35 20} 16. Nxd5 {(Nc3xd5 Ne7xd5 e4xd5
Qd8xd5 Bd3-e4 Qd5-d4 Be4xc6 Qd4xe3 f2xe3 b7xc6 Rf1-f2 Rf8-d8 Ra1-c1 Rd8-d6
Rc1-c3 a7-a5 Rf2-c2 Rb8-b5 a3-a4 Rb5-b4 Rc3-c4 Rb4xc4 Rc2xc4 Kg8-f8 Rc4-c5
Rd6-d1+ Kg1-h2 Rd1-b1 Rc5xa5 Kf8-e7 Ra5-c5 Rb1xb2 Rc5xc6 Ke7-d7 Rc6-c4
Rb2-b3 Rc4-d4+ Kd7-c6 Rd4-f4 f7-f6 Rf4-e4 Kc6-b6 Kh2-g3 c7-c5 Kg3-f3 Rb3-b1
g2-g4 Rb1-h1 Kf3-g2 Rh1-c1 Kg2-f3 c5-c4 Kf3-e2 Kb6-c5 Re4-e7 Rc1-a1 Re7xg7)
-0.07/49 48} Nxd5 {(Ne7xd5 e4xd5 Qd8xd5 Bd3-e4 Qd5-d4 Be4xc6 Qd4xe3 f2xe3
b7xc6 Rf1-f2 Rf8-d8 Ra1-f1 Rd8-d6 Rf2xf7 Rb8xb2 Rf1-f4 Rd6-g6 g2-g4 a7-a5
Rf7xc7) +0.26/35 10} 17. exd5 {(e4xd5 Qd8xd5 Bd3-e4 Qd5-d4 Be4xc6 Qd4xe3
f2xe3 b7xc6 Rf1-f2 Rf8-d8 Ra1-c1 Rd8-d6 Rc1-c3 a7-a5 Rf2-c2 Rb8-b5 a3-a4
Rb5-b4 Rc3-c4 Rb4xc4 Rc2xc4 Kg8-f8 Rc4-c5 Kf8-e7 Rc5xa5 Rd6-d1+ Kg1-h2
Rd1-b1 Ra5-c5 Rb1xb2 Rc5xc6 Ke7-d7 Rc6-c4 Rb2-b3 Rc4-d4+ Kd7-c6 Rd4-f4
f7-f6 Rf4-e4 Kc6-b6 Re4-e6+ c7-c6 Kh2-g3 Rb3-a3 Re6-e7 c6-c5 Kg3-f3 Kb6-a5
Re7xg7 Ka5xa4 Rg7-c7 Ka4-b4 Rc7-c6 c5-c4 Rc6xf6) -0.06/41 13} Qxd5 {(Qd8xd5
Bd3-e4 Qd5-d4 Be4xc6 Qd4xe3 f2xe3 b7xc6 Rf1-f2 Rf8-d8 Ra1-f1 f7-f6 Rf2-c2
Rb8-b6 Rf1-f5 Rd8-d3 Rf5-c5 Rd3-b3 Rc5xc6 Rb3xb2 Rc6xc7) +0.20/35 11} 18.
Be4 {(Bd3-e4 Qd5-d4 Be4xc6 Qd4xe3 f2xe3 b7xc6 Rf1-f2 Rf8-d8 Ra1-c1 Rd8-d6
Rc1-c3 Rb8-b5 Rf2-c2 a7-a5 Rc3-c5 Kg8-f8 a3-a4 Rd6-d1+ Kg1-h2 Rb5xc5 Rc2xc5
Rd1-b1 Rc5xa5 Kf8-e7 Ra5-c5 Rb1xb2 Rc5xc6 Ke7-d7 Rc6-c4 Rb2-b3 Rc4-d4+
Kd7-c6 Rd4-f4 f7-f6 Rf4-e4 h6-h5 Kh2-g3 Kc6-d6 Re4-d4+ Kd6-e5 Rd4-c4
Rb3xe3+ Kg3-f2 Re3-a3 Rc4xc7 g7-g5 Rc7-c5+ Ke5-e4 Rc5-c6 Ra3-a2+ Kf2-f1)
-0.05/45 22} Qd4 {(Qd5-d4 Be4xc6 Qd4xe3 f2xe3 b7xc6 Rf1-f2 Rf8-d8 Ra1-f1
f7-f6 Rf1-c1 Rb8-b6 Rc1-c4 Rd8-d3 Rf2-c2 Rd3-b3 Rc4xc6 Rb3xb2 Rc6xc7 Rb2xc2
Rc7xc2) +0.24/36 13} 19. Bxc6 {(Be4xc6 Qd4xe3 f2xe3 b7xc6 Rf1-f2 Rf8-d8
Ra1-c1 Rd8-d6 Rc1-c3 Rb8-b5 Rf2-c2 a7-a5 Rc3-c5 Kg8-f8 a3-a4 Rb5xc5 Rc2xc5
Kf8-e7 Rc5xa5 Rd6-d1+ Kg1-h2 Rd1-b1 Ra5-c5 Rb1xb2 Rc5xc6 Ke7-d7 Rc6-c4
Rb2-b3 Rc4-d4+ Kd7-c6 Rd4-e4 Kc6-b6 Kh2-g3 c7-c5 Kg3-f3 Rb3-b1 h3-h4 Kb6-c6
Re4-g4 Kc6-d5 Rg4xg7 c5-c4) -0.05/43 13} Qxe3 {(Qd4xe3 f2xe3 b7xc6 Rf1-f2
Rf8-d8 Ra1-f1 f7-f6 Rf2-c2 Rb8-b6 Rf1-f4 Rd8-d3 Rf4-a4 a7-a6 Kg1-f2 Rd3-b3
Kf2-f3 Kg8-h7 Ra4-c4 Kh7-g6 Rc2-d2) +0.13/34 13} 20. fxe3 {(f2xe3 b7xc6
Rf1-f2 Rf8-e8 Ra1-c1 Re8-e6 Rc1-c5 Rb8-b6 Rf2-c2 Kg8-f8 Kg1-f2 Kf8-e7 b2-b4
Ke7-d7 Rc5-a5 a7-a6 Rc2-c4 Kd7-c8 h3-h4 Rb6-b5 Ra5xa6 Kc8-b7 Ra6-a5 Rb5xa5
b4xa5 Re6-e5 a5-a6+ Kb7-b6 Rc4-a4 Kb6-a7 Kf2-e2 h6-h5 Ra4-d4 Re5-e7 Rd4-a4
g7-g6 g2-g4 h5xg4 Ra4xg4 Ka7xa6 Rg4-g5 Ka6-b7 Ke2-d3 Kb7-c8 h4-h5) -0.05/40
12} bxc6 {(b7xc6 Rf1-f2 Rf8-e8 Ra1-c1 Re8-e6 Rc1-c4 Kg8-f8 Rf2-c2 Rb8-b6
b2-b4 Kf8-e7 Kg1-f2 Ke7-d7 a3-a4 Re6-f6+ Kf2-g3 Rb6-b8 Rc4-d4+ Kd7-c8
Rd4-e4) +0.24/35 4} 21. Rf2 {(Rf1-f2 Rf8-d8 Ra1-c1 Rd8-d6 Rc1-c3 Rb8-b5
Rf2-c2 a7-a5 Rc3-c5 Kg8-f8 a3-a4 Rb5xc5 Rc2xc5 Rd6-d1+ Kg1-h2 Rd1-b1 Rc5xa5
Kf8-e7 Ra5-c5 Rb1xb2 Rc5xc6 Ke7-d7 Rc6-c4 Rb2-b3 Rc4-d4+ Kd7-c6 Rd4-f4
f7-f6 Rf4-e4 Kc6-d7 Re4-d4+ Kd7-c8 Rd4-e4 c7-c6 Kh2-g3 Kc8-d7 Kg3-f3 c6-c5
h3-h4 Rb3-b7 h4-h5 Kd7-c6 Re4-g4 Kc6-d5 Kf3-e2 c5-c4 Ke2-d2 Rb7-e7 Kd2-c3)
-0.05/47 17} Rfd8 {(Rf8-d8 Ra1-f1 f7-f6 Rf2-c2 Rd8-d5 Rf1-f4 a7-a6 Rf4-c4
c6-c5 Kg1-f2 Rb8-b3 Rc4xc5 Rd5xc5 Rc2xc5 Rb3xb2+ Kf2-f3 Rb2-b5 Rc5xc7
Rb5-b3 a3-a4) +0.15/37 56} 22. Rc1 {(Ra1-c1 Rd8-d6 Rc1-c3 Rb8-b5 Rf2-c2
a7-a5 Rc3-c5 Kg8-f8 a3-a4 Rd6-d1+ Kg1-h2 Rb5xc5 Rc2xc5 Rd1-b1 Rc5xa5 Kf8-e7
Ra5-c5 Rb1xb2 Rc5xc6 Ke7-d7 Rc6-c4 Rb2-b3 Rc4-d4+ Kd7-c6 Rd4-f4 f7-f6
Rf4-e4 Kc6-b6 Re4-e6+ Kb6-c5 Re6-e7 Kc5-d6 Re7xg7 c7-c5 Kh2-g3 Rb3xe3+
Kg3-f4 Re3-a3 Rg7-a7 c5-c4 Kf4-e4 Kd6-c5 a4-a5 f6-f5+ Ke4-e5 Kc5-b5 Ra7-b7+
Kb5xa5) -0.06/42 12} Rb6 {(Rb8-b6 Rc1-c4 a7-a5 Rf2-c2 Rd8-d6 Rc4-c5 Rb6-a6
Kg1-f2 Kg8-f8 Rc5-e5 f7-f6 Re5-e4 Ra6-b6 h3-h4 Rd6-d1 Re4-c4 Rd1-b1 Rc4xc6
Rb6xc6 Rc2xc6) +0.13/36 40} 23. Rc3 {(Rc1-c3 Rd8-d5 Rf2-c2 Rd5-d6 a3-a4
a7-a5 Rc3-c5 Rb6-a6 b2-b3 Kg8-f8 Rc2-c3 Kf8-e7 e3-e4 Ke7-d7 Rc3-f3 Kd7-e6
Rc5-f5 f7-f6 Rf5-c5 g7-g6 Rf3-c3 Ke6-e7 h3-h4 Rd6-e6 h4-h5 g6-g5 Kg1-f2
Re6xe4 Rc5xc6 Ra6xc6 Rc3xc6 Re4-b4 Rc6xc7+ Ke7-e6 Rc7-c5 Rb4xb3 Rc5xa5)
-0.01/37 17} Kf8 {(Kg8-f8 b2-b4 g7-g6 Rf2-c2 Rd8-d6 e3-e4 Rd6-e6 Rc3-c5
Kf8-e7 e4-e5 a7-a6 Rc2-c3 f7-f6 e5xf6+ Re6xf6 Rc5-e5+ Rf6-e6 Re5xe6+ Ke7xe6
Rc3-c5) +0.16/30 12} 24. b4 {(b2-b4 Rd8-d1+ Kg1-h2 Rd1-d5 e3-e4 Rd5-e5
Rf2-c2 Re5-e6 Kh2-g3 Re6xe4 Rc3xc6 Rb6xc6 Rc2xc6 Re4-e3+ Kg3-h2 Re3xa3
Rc6xc7 g7-g6 b4-b5 Kf8-g7 Rc7-b7 g6-g5 g2-g4 Kg7-g6 b5-b6 a7-a5 Rb7-a7
Ra3-a2+ Kh2-g3 Ra2-b2 Ra7xa5 Rb2xb6 Ra5-a8 f7-f6 Ra8-g8+ Kg6-f7 Rg8-c8
Rb6-b4) -0.03/40 12} g6 {(g7-g6 Rf2-f4 Rd8-d1+ Kg1-h2 Rd1-d6 Rf4-c4 Kf8-e7
e3-e4 Ke7-d8 e4-e5 Rd6-e6 Rc4-f4 Kd8-e8 Rf4-c4 a7-a6 Rc4-c5 Ke8-d7 Rc3-f3
Kd7-e7 Rf3-c3) +0.09/35 44} 25. e4 {(e3-e4 Rd8-e8 Rf2-c2 Re8-e6 Rc3-c5
Kf8-e8 Kg1-f2 Re6xe4 Rc5xc6 Rb6xc6 Rc2xc6 a7-a5 b4xa5 Ke8-d7 Rc6-f6 Kd7-e7
Rf6-c6 Ke7-d7) 0.00/48 16} Re8 {(Rd8-e8 Rf2-c2 Re8-e6 Rc3-c5 Kf8-e8 Rc2-c4
Rb6-a6 Rc4-c3 Ke8-d8 Rc3-f3 Kd8-e7 Rf3-c3 Ra6-b6 Rc3-c4 Ke7-d8 Rc5-a5 a7-a6
Kg1-f2 Kd8-d7 Kf2-f3) +0.01/38 26} 26. Rfc2 {(Rf2-c2 Re8-e6 Rc3-c5 Kf8-e8
Kg1-f2 Re6xe4 Rc5xc6 a7-a5 Rc6xc7 a5xb4 Rc2-b2 Rb6-f6+ Kf2-g1 Rf6-f4 Kg1-h2
Ke8-f8 a3xb4 Re4xb4 Rb2xb4 Rf4xb4 g2-g4 Rb4-b2+ Kh2-g3 Rb2-b3+ Kg3-g2 g6-g5
Rc7-c8+ Kf8-g7 Rc8-c7 Rb3-b4 Kg2-g3 Kg7-g6 Rc7-c6+ f7-f6 Rc6-a6 Rb4-b1
Kg3-g2 Rb1-b3 Ra6-c6 Rb3-a3 Rc6-b6 Ra3-a7 Kg2-g3 Kg6-g7 Rb6-b4 Ra7-a3+
Kg3-g2) 0.00/52 19} Re6 {(Re8-e6 Rc3-c5 Kf8-e7 Rc2-c4 Rb6-a6 Rc4-c3 Ke7-e8
e4-e5 Ra6-b6 Kg1-f2 f7-f6 e5xf6 Re6xf6+ Rc3-f3 Rf6xf3+ Kf2xf3 Rb6-a6 a3-a4
Ra6xa4 Rc5xc6) 0.00/38 14} 27. Rc5 {(Rc3-c5 Kf8-e8 e4-e5 Ke8-d8 Rc2-f2
Rb6-b5 Rf2xf7 Rb5xc5 b4xc5 Re6xe5 Rf7-f6 h6-h5 Rf6xg6 Re5xc5 Rg6-h6 Kd8-d7
Rh6-h7+ Kd7-d6 Rh7-h6+) 0.00/48 59} Ke7 {(Kf8-e7 Rc2-c4 Ke7-d7 Rc5-a5 a7-a6
Kg1-f2 h6-h5 h3-h4 Re6-f6+ Kf2-g3 Rf6-d6 Rc4-c3 Rd6-d4 Kg3-f3 Rd4-d2 Kf3-g3
Rd2-d6 Kg3-f4 Rd6-d2 Kf4-g3) 0.00/39 19} 28. Kf2 {(Kg1-f2 Ke7-d7 Kf2-e3
Rb6-b5 Ke3-f4 a7-a6 Rc2-c3 Re6-f6+ Kf4-e3 Rf6-d6 Rc3-c4 Rd6-e6 Ke3-f4)
0.00/51 17} Kd7 {(Ke7-d7 Kf2-e3 Rb6-b5 Ke3-f4 g6-g5+ Kf4-f5 Re6-d6 Rc2-f2
a7-a5 Rc5xb5 c6xb5 e4-e5 Rd6-a6 b4xa5 Kd7-e8 Rf2-c2 Ra6xa5 Rc2xc7 Ra5xa3
Rc7-b7) +0.01/31 13} 29. Ke3 {(Kf2-e3 Rb6-b5 Ke3-f4 a7-a6 Rc2-c3 Re6-f6+
Kf4-e3 Rf6-d6 Rc3-c4 Rd6-e6 Ke3-f4 Re6-f6+ Kf4-e3) 0.00/49 13} Rb5 {(Rb6-b5
Ke3-f4 Re6-f6+ Kf4-e3 h6-h5 g2-g3 g6-g5 h3-h4 g5-g4 Ke3-d4 Rb5xc5 Rc2xc5
Rf6-f3 Rc5-f5 Rf3xf5 e4xf5 Kd7-e7 Kd4-e5 f7-f6+ Ke5-d4) 0.00/39 35} 30. Kf4
{(Ke3-f4 a7-a6 Rc2-c3 Re6-f6+ Kf4-e3 Rf6-d6 g2-g3 Rd6-f6 h3-h4 Rf6-d6
Rc3-c4 h6-h5 Rc4-c2 Rd6-e6 Ke3-f4 Re6-f6+ Kf4-e3 Rf6-d6 Rc2-c1 Rb5xc5
Rc1xc5 Kd7-c8 Rc5-a5 Kc8-b7 Ra5-e5 Rd6-d1 Re5-e7 Rd1-f1 Ke3-e2 Rf1-f6
Ke2-e3 Rf6-f1) 0.00/51 12} Rf6+ {(Re6-f6+ Kf4-e3 Rb5xc5 Rc2xc5 Rf6-f1
Rc5-a5 Rf1-g1 Ke3-f3 Rg1-f1+ Kf3-e3 Rf1-g1 Ke3-f3 Rg1-f1+ Kf3-e3) 0.00/41
23} 31. Ke3 {(Kf4-e3 Rf6-d6 Rc2-f2 f7-f6 Rf2-c2 g6-g5 g2-g3 Rb5xc5 Rc2xc5
Rd6-d1 Rc5-f5 Rd1-e1+ Ke3-d4 Kd7-e6 Rf5-c5 Ke6-d6 Rc5-f5 Re1-d1+ Kd4-e3
Kd6-e6) 0.00/48 12} Rxc5 {(Rb5xc5 Rc2xc5 Rf6-f1 Rc5-a5 Rf1-e1+ Ke3-f3
Re1-f1+ Kf3-e3 Rf1-e1+ Ke3-f3 Re1-f1+ Kf3-e3) 0.00/42 23} 32. Rxc5 {(Rc2xc5
Rf6-f1 Rc5-a5 Rf1-e1+ Ke3-f3 Re1-f1+ Kf3-g3 Rf1-e1) 0.00/47 17} Rf1
{(Rf6-f1 Rc5-a5 Rf1-e1+ Ke3-f3 Re1-f1+ Kf3-e3 Rf1-e1+ Ke3-f3 Re1-f1+
Kf3-e3) 0.00/45 27} 33. Ra5 {(Rc5-a5 Rf1-e1+ Ke3-f3 Re1-f1+) 0.00/52 33}
Re1+ {(Rf1-e1+ Ke3-f4 Re1-f1+ Kf4-e3) 0.00/42 18} 34. Kf3 {(Ke3-f3 Re1-f1+
Kf3-e3 Rf1-e1+ Ke3-f4 g6-g5+ Kf4-f3 Re1-f1+ Kf3-e2 Rf1-a1 Ra5xa7 f7-f6
Ra7-a5 h6-h5 g2-g3 Ra1-a2+ Ke2-f3 c6-c5 h3-h4 g5-g4+ Kf3-e3 c7-c6 Ra5-a7+
Kd7-e6 b4xc5 Ra2-g2 Ra7-c7 Rg2xg3+ Ke3-d4 Rg3xa3 Rc7xc6+ Ke6-f7 Rc6-c7+
Kf7-e6) 0.00/56 40} h5 {(h6-h5 Ra5xa7 Re1-f1+ Kf3-e3 Rf1-g1 Ke3-f3 Rg1-f1+
Kf3-e3 Rf1-g1 Ke3-f3 Rg1-f1+) 0.00/42 10} 35. h4 {(h3-h4 Re1-f1+ Kf3-g3
Rf1-e1) 0.00/49 16} Rf1+ {(Re1-f1+ Kf3-e3 Rf1-g1 Ke3-f3 Rg1-f1+ Kf3-e3
Rf1-g1 Ke3-f3 Rg1-f1+) 0.00/43 16} 36. Kg3 {(Kf3-g3 Rf1-e1 Kg3-f3 Re1-h1
Kf3-g3) 0.00/53 36} Re1 {(Rf1-e1 Kg3-f3 Re1-f1+ Kf3-e3 Rf1-e1+ Ke3-f4 f7-f6
Ra5xa7 Re1-f1+ Kf4-g3 Rf1-e1 Kg3-f4 Re1-f1+ Kf4-g3 Rf1-e1 Kg3-f4) 0.00/45
23} 37. Kf3 {(Kg3-f3 Re1-h1 Kf3-g3 Rh1-c1 Kg3-f4 Rc1-g1 Kf4-g3 Rg1-c1)
0.00/60 56} Rf1+ {(Re1-f1+ Kf3-g3 Rf1-e1 Kg3-f3) 0.00/47 17} 38. Kg3
{(Kf3-g3 Rf1-c1 Kg3-f4 Rc1-f1+ Kf4-g3) 0.00/59 22} Re1 {(Rf1-e1 Kg3-f3)
0.00/50 31} 39. Kf4 {(Kg3-f4 f7-f6 Ra5xa7 Re1-f1+ Kf4-g3 f6-f5 e4xf5 Rf1xf5
Ra7-a5 c6-c5 Ra5xc5 Rf5xc5 b4xc5 Kd7-c6 Kg3-f4 Kc6xc5 Kf4-e5 Kc5-c4 a3-a4
Kc4-c5 a4-a5 Kc5-b5 Ke5-d5 Kb5xa5 Kd5-c5 Ka5-a4 Kc5-c6 Ka4-b4 Kc6xc7 Kb4-c5
Kc7-d7 Kc5-d5 Kd7-e7 Kd5-e5 Ke7-f7 Ke5-f5 Kf7-g7 Kf5-g4 Kg7xg6 Kg4xh4
Kg6-h6 Kh4-g4 g2-g3 Kg4xg3 Kh6xh5 Kg3-f2 Kh5-g6 Kf2-e2 Kg6-g7 Ke2-d3 Kg7-f6
Kd3-d4 Kf6-e6 Kd4-c4 Ke6-f7 Kc4-b3 Kf7-g7 Kb3-b4 Kg7-h6 Kb4-c4 Kh6-g6
Kc4-b4 Kg6-h5 Kb4-b3 Kh5-g5 Kb3-c3 Kg5-f4 Kc3-c2) 0.00/64 139} Rf1+
{(Re1-f1+ Kf4-g3) 0.00/49 30} 40. Kg3 {(Kf4-g3) 0.00/61 33 3-fold
repetition} *[/pgn]

[Dann Corbit]

For a sound gambit, the engine strength difference is not the relevant factor.
The gambit is giving up a pawn (or even a piece) in order to gain development time.
A very deep search will show that the development advantage is real and there is a benefit to the move.
Unless it is an unsound gambit. In which case a very deep search will show that the move is a benefit to the other side.

Maybe reading this can prove helpful:

Code: Select all

https://en.wikipedia.org/wiki/Gambit#:~:text=A%20gambit%20(from%20Italian%20gambetto,achieving%20a%20subsequent%20positional%20advantage.

[Dann Corbit]

About "Proof by demonstration of a data point", here is proof that the move 1.e4 is bad and loses:
[pgn][Event "Candidats Tournament"]
[Site "?"]
[Date "1962.??.??"]
[Round "?"]
[White "Fischer, Robert"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[ECO "B88"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7
8. O-O O-O 9. Be3 Na5 10. f4 b6 11. e5 Ne8 12. f5 dxe5 13. fxe6 Nxb3 14.
Nc6 Qd6 15. Qxd6 Bxd6 16. axb3 Bxe6 17. Nxa7 Rb8 18. Ra6 Nf6 19. Rxb6 Rxb6
20. Bxb6 Rb8 21. Bf2 Ng4 22. Nab5 Bb4 23. Ba7 Rb7 24. h3 Bxc3 25. bxc3
Rxb5 26. hxg4 Bxg4 27. c4 Rb7 28. Ra1 Bf5 29. c5 Bxc2 30. c6 Rxb3 31. g4
Rg3+ 32. Kf2 Rxg4 33. c7 Bf5 34. Be3 h5 35. Ra8+ Kh7 36. c8=Q Bxc8 37.
Rxc8 h4 38. Kf3 f5 39. Rf8 Kg6 40. Rh8 Rg3+ 41. Kf2 f4 42. Ba7 h3 43. Bb8
Kf5 44. Rf8+ Ke4 45. Re8 Rg5 46. Rh8 Rg2+ 47. Kf1 Rb2 48. Bxe5 Kxe5 49.
Rxh3 g5 0-1

[/pgn]
And here, Mr. Fischer was known to say that "1.e4 is best by test" but it can't be true.
He played 1.e4 and lost.

[Chessqueen]

I also wonder why there has NOT been any sucessful gambit played at any world chess championship . Anyway some gambits are stupid and any chess engine can refute it easy


[pgn][Event "Computer chess game"]
[Site "?"]
[Date "2024.03.12"]
[Round "?"]
[White "Stockfish-windows-x86-64-avx2"]
[Black "Caissa-1.17-x64-avx2"]
[Result "*"]
[BlackElo "xxxx"]
[ECO "C50"]
[Opening "Giuoco Piano"]
[Time "09:47:28"]
[Variation "Jerome Gambit"]
[WhiteElo "xxxx"]
[TimeControl "900+10"]
[Termination "unterminated"]
[PlyCount "20"]
[WhiteType "program"]
[BlackType "program"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Bxf7+ Kxf7 {(Ke8xf7 Nf3xe5+ Nc6xe5 d2-d4
Bc5xd4 Qd1xd4 d7-d6 Nb1-c3 Ng8-f6 Bc1-f4 Rh8-f8 Bf4xe5 d6xe5 Qd4xe5 c7-c6
O-O Qd8-b6 Ra1-d1 Qb6xb2 Rd1-d3) +2.39/27 6} 5. Nxe5+ {(Nf3xe5+ Nc6xe5
Qd1-h5+ Kf7-f8 Qh5xe5 d7-d5 d2-d4 Bc5-b6 Bc1-g5 Ng8-f6 Nb1-c3 d5xe4 O-O-O
h7-h6 Bg5xf6 Qd8xf6 Qe5xe4 c7-c6 d4-d5 Kf8-g8 g2-g4 Qf6-g5+ Kc1-b1 Qg5xg4
Qe4-e1 Qg4-f5 d5xc6 b7xc6 Nc3-e4 Bc8-e6 Ne4-d6 Qf5-f6 Rh1-g1 Ra8-f8 Qe1-e4
Be6-f7) -2.75/30 32} Nxe5 {(Nc6xe5 d2-d4 Bc5xd4 Qd1xd4 d7-d6 Nb1-c3 Ng8-f6
Bc1-f4 Ne5-c6 Qd4-d3 Rh8-f8 Bf4-g5 h7-h6 Bg5-h4 Nc6-e5 Qd3-d2 Kf7-g8 f2-f4
Ne5-g6 Bh4xf6) +2.51/28 16} 6. Qh5+ {(Qd1-h5+ Kf7-e6 Qh5-f5+ Ke6-d6 Nb1-a3
Qd8-f6 Na3-c4+ Ne5xc4 Qf5-d5+ Kd6-e7 Qd5xc5+ Nc4-d6 e4-e5 Qf6-g6 O-O Ke7-d8
e5xd6 Qg6xd6 Qc5xd6 c7xd6 b2-b3 b7-b6 Bc1-a3 Kd8-c7 Rf1-e1 Bc8-b7 Ba3-b2
Ng8-f6 Re1-e7 Rh8-g8 Ra1-e1 Nf6-d5 Re7xg7 Rg8xg7 Bb2xg7 Ra8-g8 Bg7-b2
Nd5-f4 g2-g3 Nf4-e6 Re1-e3 Ne6-g5 d2-d3 Ng5-f3+ Kg1-g2 Bb7-c6 c2-c4 Bc6-b7
b3-b4) -2.99/36 75} Ke6 {(Kf7-e6 Qh5-h3+ Ke6-e7 Qh3-c3 Bc5-d6 d2-d4 Ne5-c6
O-O Qd8-f8 d4-d5 Qf8-f6 d5xc6 Qf6xc3 Nb1xc3 b7xc6 e4-e5 Bd6xe5 Rf1-e1
Ke7-f6 Bc1-g5+) +2.83/29 19} 7. Qh3+ {(Qh5-h3+ Ke6-e7 Qh3-c3 Bc5-d6 d2-d4
Ne5-c6 O-O Ke7-f8 e4-e5 Bd6-e7 f2-f4 Ng8-f6 f4-f5 d7-d6 e5-e6 Qd8-e8 Bc1-g5
Qe8-h5 Qc3-d2 h7-h6 Bg5xf6 Be7xf6 d4-d5 Qh5-g5 Qd2-e2 Bf6xb2 Nb1-d2 Bb2xa1
Rf1xa1 Qg5-f6 Ra1-f1 Qf6-d4+ Kg1-h1 Nc6-e5 Nd2-f3 Ne5xf3 f5-f6 g7xf6 Qe2xf3
Qd4-e5 Kh1-g1 Qe5-g5) -3.14/37 151} Ke7 {(Ke6-e7 Qh3-c3 Bc5-d6 d2-d4 Ne5-c6
O-O Ke7-e8 e4-e5 Bd6-b4 Qc3-g3 Ng8-e7 c2-c3 Ne7-f5 Qg3-g4 d7-d5 c3xb4
Qd8-h4 Qg4-d1 Nc6xd4 Nb1-c3) +3.05/31 22} 8. Qc3 {(Qh3-c3 Bc5-d6 d2-d4
Ne5-c6 O-O Ke7-f8 e4-e5 Bd6-e7 f2-f4 Ng8-f6 e5xf6 Be7xf6 Qc3-d3 d7-d6
Bc1-d2 a7-a5 Nb1-c3 Nc6-b4 Qd3-f3 Nb4xc2 f4-f5 Nc2xa1 Rf1xa1 Bc8-d7 Ra1-e1
h7-h5 Nc3-d5 Bd7-c6 Re1-e6 Bc6xd5 Qf3xd5 c7-c6 Qd5-f3 Qd8-d7 Bd2-f4)
-3.21/31 23} Bd6 {(Bc5-d6 d2-d4 Ne5-c6 O-O Ke7-e8 d4-d5 Qd8-h4 g2-g3 Qh4-h5
d5xc6 Ng8-f6 Nb1-d2 d7xc6 Nd2-c4 Bd6-e7 Bc1-f4 Bc8-e6 Nc4-e5 Ra8-d8 f2-f3)
+3.00/31 16} 9. d4 {(d2-d4 Ne5-c6 O-O Ke7-f8 e4-e5 Bd6-e7 Qc3-f3+ Ng8-f6
e5xf6 Be7xf6 Bc1-e3 d7-d5 c2-c4 d5xc4 Nb1-c3 h7-h5 h2-h3 Bc8-e6 Rf1-d1
Be6-f7 b2-b3 c4xb3 a2xb3 Kf8-g8 Ra1-c1 Nc6-e7 Qf3xb7 Ne7-d5 Nc3xd5 Bf7xd5
Qb7xc7 Qd8xc7 Rc1xc7 a7-a5 Rd1-d3 Kg8-h7 Rc7-c5 Rh8-d8 Be3-d2 a5-a4 b3xa4
Ra8xa4 Bd2-f4 Ra4xd4 Rd3xd4 Bf6xd4 Rc5-a5) -3.17/30 13} Nc6 {(Ne5-c6 O-O
Ke7-e8 e4-e5 Bd6-b4 Qc3-g3 Ng8-e7 a2-a3 Bb4-a5 d4-d5 Ne7-f5 Qg3-f3 Nc6-d4
Qf3-d1 d7-d6 c2-c3 d6xe5 c3xd4 Qd8xd5 Bc1-d2) +3.12/31 14} 10. O-O {(O-O
Ke7-f8 e4-e5 Bd6-e7 d4-d5 Nc6xe5 Qc3xe5 d7-d6 Qe5-g3 Ng8-f6 Nb1-c3 Qd8-d7
Rf1-e1 Qd7-g4 Qg3-e3 Be7-d8 h2-h3 Qg4-g6 Nc3-e2 Nf6xd5 Qe3-b3 Qg6-f7 c2-c4
Nd5-e7 Bc1-g5) -3.11/32 13} Ke8 {(Ke7-e8 e4-e5 Bd6-b4 Qc3-g3 Ng8-e7 c2-c3
Ne7-f5 Qg3-g4 d7-d5 c3xb4 Qd8-h4 Qg4xh4 Nf5xh4 Nb1-c3 Bc8-e6 h2-h3 Nh4-f5
Rf1-d1 Nc6xb4 g2-g4) +3.09/33 26} *[/pgn]

[Chessqueen]

I also wonder why there has NOT been any sucessful gambit played at any world chess championship . Anyway some gambits are stupid and any chess engine can refute it

[pgn][Event "Computer chess game"]
[Site "?"]
[Date "2024.03.12"]
[Round "?"]
[White "Stockfish-windows-x86-64-avx2"]
[Black "Caissa-1.17-x64-avx2"]
[Result "0-1"]
[BlackElo "xxxx"]
[ECO "C50"]
[Opening "Giuoco Piano"]
[Time "09:47:28"]
[Variation "Jerome Gambit"]
[WhiteElo "xxxx"]
[TimeControl "900+10"]
[Termination "unterminated"]
[PlyCount "20"]
[WhiteType "program"]
[BlackType "program"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Bxf7+ Kxf7 {(Ke8xf7 Nf3xe5+ Nc6xe5 d2-d4
Bc5xd4 Qd1xd4 d7-d6 Nb1-c3 Ng8-f6 Bc1-f4 Rh8-f8 Bf4xe5 d6xe5 Qd4xe5 c7-c6
O-O Qd8-b6 Ra1-d1 Qb6xb2 Rd1-d3) +2.39/27 6} 5. Nxe5+ {(Nf3xe5+ Nc6xe5
Qd1-h5+ Kf7-f8 Qh5xe5 d7-d5 d2-d4 Bc5-b6 Bc1-g5 Ng8-f6 Nb1-c3 d5xe4 O-O-O
h7-h6 Bg5xf6 Qd8xf6 Qe5xe4 c7-c6 d4-d5 Kf8-g8 g2-g4 Qf6-g5+ Kc1-b1 Qg5xg4
Qe4-e1 Qg4-f5 d5xc6 b7xc6 Nc3-e4 Bc8-e6 Ne4-d6 Qf5-f6 Rh1-g1 Ra8-f8 Qe1-e4
Be6-f7) -2.75/30 32} Nxe5 {(Nc6xe5 d2-d4 Bc5xd4 Qd1xd4 d7-d6 Nb1-c3 Ng8-f6
Bc1-f4 Ne5-c6 Qd4-d3 Rh8-f8 Bf4-g5 h7-h6 Bg5-h4 Nc6-e5 Qd3-d2 Kf7-g8 f2-f4
Ne5-g6 Bh4xf6) +2.51/28 16} 6. Qh5+ {(Qd1-h5+ Kf7-e6 Qh5-f5+ Ke6-d6 Nb1-a3
Qd8-f6 Na3-c4+ Ne5xc4 Qf5-d5+ Kd6-e7 Qd5xc5+ Nc4-d6 e4-e5 Qf6-g6 O-O Ke7-d8
e5xd6 Qg6xd6 Qc5xd6 c7xd6 b2-b3 b7-b6 Bc1-a3 Kd8-c7 Rf1-e1 Bc8-b7 Ba3-b2
Ng8-f6 Re1-e7 Rh8-g8 Ra1-e1 Nf6-d5 Re7xg7 Rg8xg7 Bb2xg7 Ra8-g8 Bg7-b2
Nd5-f4 g2-g3 Nf4-e6 Re1-e3 Ne6-g5 d2-d3 Ng5-f3+ Kg1-g2 Bb7-c6 c2-c4 Bc6-b7
b3-b4) -2.99/36 75} Ke6 {(Kf7-e6 Qh5-h3+ Ke6-e7 Qh3-c3 Bc5-d6 d2-d4 Ne5-c6
O-O Qd8-f8 d4-d5 Qf8-f6 d5xc6 Qf6xc3 Nb1xc3 b7xc6 e4-e5 Bd6xe5 Rf1-e1
Ke7-f6 Bc1-g5+) +2.83/29 19} 7. Qh3+ {(Qh5-h3+ Ke6-e7 Qh3-c3 Bc5-d6 d2-d4
Ne5-c6 O-O Ke7-f8 e4-e5 Bd6-e7 f2-f4 Ng8-f6 f4-f5 d7-d6 e5-e6 Qd8-e8 Bc1-g5
Qe8-h5 Qc3-d2 h7-h6 Bg5xf6 Be7xf6 d4-d5 Qh5-g5 Qd2-e2 Bf6xb2 Nb1-d2 Bb2xa1
Rf1xa1 Qg5-f6 Ra1-f1 Qf6-d4+ Kg1-h1 Nc6-e5 Nd2-f3 Ne5xf3 f5-f6 g7xf6 Qe2xf3
Qd4-e5 Kh1-g1 Qe5-g5) -3.14/37 151} Ke7 {(Ke6-e7 Qh3-c3 Bc5-d6 d2-d4 Ne5-c6
O-O Ke7-e8 e4-e5 Bd6-b4 Qc3-g3 Ng8-e7 c2-c3 Ne7-f5 Qg3-g4 d7-d5 c3xb4
Qd8-h4 Qg4-d1 Nc6xd4 Nb1-c3) +3.05/31 22} 8. Qc3 {(Qh3-c3 Bc5-d6 d2-d4
Ne5-c6 O-O Ke7-f8 e4-e5 Bd6-e7 f2-f4 Ng8-f6 e5xf6 Be7xf6 Qc3-d3 d7-d6
Bc1-d2 a7-a5 Nb1-c3 Nc6-b4 Qd3-f3 Nb4xc2 f4-f5 Nc2xa1 Rf1xa1 Bc8-d7 Ra1-e1
h7-h5 Nc3-d5 Bd7-c6 Re1-e6 Bc6xd5 Qf3xd5 c7-c6 Qd5-f3 Qd8-d7 Bd2-f4)
-3.21/31 23} Bd6 {(Bc5-d6 d2-d4 Ne5-c6 O-O Ke7-e8 d4-d5 Qd8-h4 g2-g3 Qh4-h5
d5xc6 Ng8-f6 Nb1-d2 d7xc6 Nd2-c4 Bd6-e7 Bc1-f4 Bc8-e6 Nc4-e5 Ra8-d8 f2-f3)
+3.00/31 16} 9. d4 {(d2-d4 Ne5-c6 O-O Ke7-f8 e4-e5 Bd6-e7 Qc3-f3+ Ng8-f6
e5xf6 Be7xf6 Bc1-e3 d7-d5 c2-c4 d5xc4 Nb1-c3 h7-h5 h2-h3 Bc8-e6 Rf1-d1
Be6-f7 b2-b3 c4xb3 a2xb3 Kf8-g8 Ra1-c1 Nc6-e7 Qf3xb7 Ne7-d5 Nc3xd5 Bf7xd5
Qb7xc7 Qd8xc7 Rc1xc7 a7-a5 Rd1-d3 Kg8-h7 Rc7-c5 Rh8-d8 Be3-d2 a5-a4 b3xa4
Ra8xa4 Bd2-f4 Ra4xd4 Rd3xd4 Bf6xd4 Rc5-a5) -3.17/30 13} Nc6 {(Ne5-c6 O-O
Ke7-e8 e4-e5 Bd6-b4 Qc3-g3 Ng8-e7 a2-a3 Bb4-a5 d4-d5 Ne7-f5 Qg3-f3 Nc6-d4
Qf3-d1 d7-d6 c2-c3 d6xe5 c3xd4 Qd8xd5 Bc1-d2) +3.12/31 14} 10. O-O {(O-O
Ke7-f8 e4-e5 Bd6-e7 d4-d5 Nc6xe5 Qc3xe5 d7-d6 Qe5-g3 Ng8-f6 Nb1-c3 Qd8-d7
Rf1-e1 Qd7-g4 Qg3-e3 Be7-d8 h2-h3 Qg4-g6 Nc3-e2 Nf6xd5 Qe3-b3 Qg6-f7 c2-c4
Nd5-e7 Bc1-g5) -3.11/32 13} Ke8 {(Ke7-e8 e4-e5 Bd6-b4 Qc3-g3 Ng8-e7 c2-c3
Ne7-f5 Qg3-g4 d7-d5 c3xb4 Qd8-h4 Qg4xh4 Nf5xh4 Nb1-c3 Bc8-e6 h2-h3 Nh4-f5
Rf1-d1 Nc6xb4 g2-g4) +3.09/33 26} 11. e5 {(e4-e5 Bd6-b4 Qc3-g3 Ng8-e7 c2-c3
Ne7-f5 Qg3-g4 d7-d5 c3xb4 Qd8-h4 Qg4xh4 Nf5xh4 Nb1-c3 Bc8-e6 Nc3-e2 Nh4-f5
Rf1-d1 Nc6xb4 h2-h3 h7-h5 g2-g3 c7-c5 d4xc5 Ke8-f7 f2-f3 Nb4-c6 g3-g4
Nf5-h4 Kg1-f2 Nh4-g6 Kf2-g3 Ng6xe5 b2-b4 d5-d4 b4-b5 d4-d3 Ne2-g1 Nc6-d4
f3-f4 Ne5xg4 h3xg4 h5xg4 Rd1xd3 Nd4-f5+ Kg3xg4) -3.12/36 116} Bb4 {(Bd6-b4
Qc3-g3 Ng8-e7 c2-c3 Ne7-f5 Qg3-g4 d7-d5 c3xb4 Qd8-h4 Qg4xh4 Nf5xh4 Nb1-c3
Bc8-e6 b4-b5 Nc6xd4 Rf1-d1 Nh4-f5 Bc1-e3 Nd4-c2 Ra1-c1) +3.32/32 22} 12.
Qg3 {(Qc3-g3 Ng8-e7 c2-c3 Ne7-f5 Qg3-g4 d7-d6 c3xb4 d6xe5 d4xe5 h7-h5
Qg4-g6+ Ke8-f8 Nb1-c3 Nc6xe5 Qg6-g5 Ne5-f7 Qg5-f4 Rh8-h6 Qf4-e4 Nf5-d6
Qe4-e2 Bc8-g4 f2-f3 Rh6-e6 Qe2-f2 Bg4-f5 Nc3-d5 Re6-e8 Rf1-d1 Kf8-g8 Bc1-e3
Ra8-c8 h2-h3 b7-b6 Be3-d4 h5-h4 Nd5-f4) -3.09/28 9} Nge7 {(Ng8-e7 a2-a3
Bb4-a5 d4-d5 Ne7-f5 Qg3-f3 Nc6-d4 Qf3-h5+ g7-g6 Qh5-d1 d7-d6 e5-e6 Nd4xe6
d5xe6 Bc8xe6 c2-c4 Ba5-b6 Rf1-e1 Qd8-d7 Nb1-d2) +3.31/32 17} 13. c3 {(c2-c3
Ne7-f5 Qg3-g4 d7-d5 c3xb4 Qd8-e7 Nb1-c3 Bc8-e6 Nc3xd5 Nf5xd4 Qg4-h5+ g7-g6
Nd5xe7 g6xh5 Ne7xc6 b7xc6 Bc1-e3 Nd4-f5 Be3-c5 Rh8-g8 f2-f3 Ra8-d8 Rf1-f2
a7-a6 h2-h3 Rd8-d3 Kg1-h2 Be6-d5 b2-b3 Ke8-d7 Ra1-e1 Nf5-d4 Re1-c1 Nd4-e6
Rf2-e2 h5-h4 Rc1-c2 Ne6xc5 Rc2xc5 Rd3-d4 e5-e6+ Kd7-e7 Re2-e5 Rd4xb4)
-3.20/35 87} Nf5 {(Ne7-f5 Qg3-g4 d7-d5 c3xb4 Qd8-h4 Qg4xh4 Nf5xh4 Nb1-c3
Bc8-e6 h2-h3 Nh4-f5 f2-f4 Nf5xd4 b2-b3 a7-a6 Bc1-b2 h7-h5 Nc3-a4 b7-b6
Bb2xd4) +3.40/32 32} 14. Qg4 {(Qg3-g4 d7-d5 c3xb4 Bc8-e6 Nb1-c3 Qd8-e7
Nc3xd5 Nf5xd4 Qg4-h5+ g7-g6 Nd5xe7 g6xh5 Ne7xc6 b7xc6 Bc1-e3 Nd4-f5 Be3-c5
Rh8-g8 f2-f3 Ra8-d8 Rf1-f2 a7-a6 h2-h3 Rd8-d3 Kg1-h2 Be6-d5 Ra1-c1 Ke8-d7
b2-b3 Nf5-d4 Rc1-e1 h5-h4 Rf2-b2 Kd7-e6 Rb2-f2 Rg8-g6 Rf2-b2 Rg6-g5 Rb2-f2
Rg5-h5 Rf2-b2 Rh5-f5 Rb2-f2 Rf5xe5 Re1xe5+ Ke6xe5 Bc5-e7) -3.18/33 9} d5
{(d7-d5 c3xb4 Qd8-h4 Qg4xh4 Nf5xh4 Bc1-e3 Nc6xb4 Rf1-c1 c7-c6 Nb1-c3 Nb4-a6
h2-h3 Rh8-f8 Nc3-e2 Na6-c7 Rc1-c3 Nh4-f5 g2-g4 Nf5xe3 Rc3xe3) +3.39/31 17}
15. cxb4 {(c3xb4 Bc8-e6 Nb1-c3 Qd8-e7 Nc3xd5 Nf5xd4 Qg4-h5+ g7-g6 Nd5xe7
g6xh5 Ne7xc6 b7xc6 Bc1-e3 Nd4-f5 Be3-c5 Rh8-g8 f2-f3 Ra8-d8 Rf1-f2 a7-a6
h2-h3 Rd8-d5 Ra1-e1 Rd5-d3 Re1-a1 Be6-d5 Kg1-f1 Nf5-d4 Bc5xd4 Rd3xd4 a2-a3
c6-c5 b4xc5 Ke8-e7 Kf1-e2 Bd5-c6 Ke2-e3 Rd4-d5 Ke3-f4 Rd5xc5) -3.19/29 11}
Qh4 {(Qd8-h4 Qg4-d1 Nc6xd4 a2-a4 Bc8-e6 Nb1-c3 Rh8-f8 a4-a5 Ke8-f7 Bc1-e3
Nd4-b3 Qd1xb3 d5-d4 Qb3-c2 d4xe3 f2xe3 Kf7-g8 Qc2-e4 Qh4xe4 Nc3xe4)
+3.45/29 17} 16. Qxh4 {(Qg4xh4 Nf5xh4 Nb1-c3 Bc8-e6 Nc3-e2 Nh4-f5 Rf1-d1
Nc6xb4 h2-h3 h7-h5 g2-g3 c7-c5 d4xc5 Nb4-c6 Ne2-f4 Ke8-f7 b2-b4 a7-a6
Kg1-g2 d5-d4 a2-a4 Be6-b3 Rd1-e1 g7-g5 Nf4-d3 Bb3-c4 Ra1-a3 a6-a5 b4-b5
Nc6-b4 e5-e6+ Kf7-g7 Nd3xb4 a5xb4 Ra3-f3 Bc4-d5 Bc1xg5 Kg7-g6) -3.07/30 57}
Nxh4 {(Nf5xh4 Nb1-c3 Bc8-e6 Nc3-e2 Nh4-f5 Rf1-d1 Nc6xb4 h2-h3 h7-h5 Bc1-g5
h5-h4 a2-a3 Nb4-c6 b2-b4 a7-a6 Ra1-c1 Ke8-d7 Rc1-c3 Ra8-b8 Ne2-f4) +3.45/29
6} 17. Nc3 {(Nb1-c3 Bc8-e6 Nc3-e2 Nh4-f5 Rf1-d1 Nc6xb4 h2-h3 h7-h5 g2-g3
c7-c5 d4xc5 Ke8-f7 Kg1-g2 d5-d4 Bc1-g5 Be6-d5+ Kg2-g1 Nb4-c6 Ne2-f4 Nc6xe5
Nf4xd5 Ne5-f3+ Kg1-g2 Nf3xg5 Ra1-c1 Ra8-c8 Nd5-f4 Rh8-e8 Rd1-d3 Ng5-e4
Rd3-b3 b7-b6 Nf4xh5 b6xc5 Rb3-f3 g7-g6) -3.12/30 16} Be6 {(Bc8-e6 Bc1-g5
Nh4-f5 Ra1-d1 h7-h6 Bg5-c1 Nc6xb4 g2-g4 Nf5-e7 a2-a3 Nb4-c6 f2-f3 Ke8-d7
h2-h3 a7-a5 Nc3-e2 a5-a4 Kg1-g2 Rh8-e8 h3-h4) +3.37/32 25} 18. Ne2 {(Nc3-e2
Nh4-f5 Rf1-d1 Nc6xb4 h2-h3 h7-h5 g2-g3 c7-c5 d4xc5 Ke8-f7 f2-f3 Nb4-c6
b2-b3 Ra8-e8 Kg1-f2 Nf5-e7 b3-b4 Be6xh3 Ne2-f4 Bh3-e6 b4-b5 Nc6-a5 Ra1-b1
Re8-c8 Nf4-d3 d5-d4 Bc1-g5 Ne7-d5 Rd1-c1 Nd5-c3 Bg5-d2) -3.18/35 39} Nf5
{(Nh4-f5 Rf1-d1 Nc6xb4 h2-h3 h7-h5 g2-g3 Ke8-d7 Bc1-g5 Nf5-h6 Kg1-g2 Nh6-f7
Bg5-d2 a7-a5 f2-f3 g7-g5 g3-g4 c7-c5 Ra1-c1 c5-c4 Ne2-c3) +3.32/32 20} 19.
Rd1 {(Rf1-d1 Nc6xb4 h2-h3 h7-h5 g2-g3 c7-c5 d4xc5 Ke8-f7 f2-f3 Nb4-c6 g3-g4
Nf5-h4 Kg1-f2 h5xg4 f3xg4 Nh4-g6 Kf2-g3 Rh8-e8 Bc1-d2 Kf7-g8 Bd2-c3 Nc6xe5
Ne2-d4 Ne5-c6 Nd4-b5 Re8-e7 Rd1-d3 d5-d4 Nb5xd4 Re7-d7 Ra1-d1 Be6-c4)
-3.24/32 35} Nxb4 {(Nc6xb4 f2-f3 Ke8-d7 h2-h3 h7-h5 a2-a3 Nb4-c6 g2-g3
Ra8-f8 Kg1-f2 Rf8-f7 Bc1-g5 Rh8-f8 Kf2-g2 Nf5-e7 Rd1-d3 Be6-f5 Rd3-c3
Nc6-d8 Bg5xe7) +3.37/32 18} 20. f3 {(f2-f3 Ke8-d7 Kg1-f2 h7-h5 g2-g3 a7-a5
Bc1-g5 a5-a4 a2-a3 Nb4-c6 Ra1-c1 Rh8-f8 h2-h3 Nf5-e7 Kf2-g2 Rf8-f5 Bg5-d2
Rf5-f7 Bd2-g5 Nc6-a5 g3-g4 Na5-c4 Rc1-c3 b7-b6 Rd1-b1 Ne7-c6 Kg2-g3 Ra8-f8
Rb1-c1 Kd7-c8 Rc1-a1 Nc6-a5 Ne2-f4 Rf7xf4) -3.06/34 46} Rf8 {(Ke8-d7 h2-h3
Rh8-f8 a2-a3 Nb4-c6 b2-b4 h7-h5 Bc1-g5 h5-h4 Kg1-f2 a7-a6 Ra1-a2 Ra8-e8
Ra2-b2 Re8-c8 Kf2-g1 Rc8-e8 Kg1-f2 Re8-c8 Kf2-g1) +3.40/32 25} 21. Kf2
{(Kg1-f2 Ra8-c8 b2-b3 c7-c5 d4xc5 Rc8xc5 Bc1-a3 a7-a5 Rd1-d2 g7-g5 Ne2-g3
Rc5-c6 Ra1-e1 h7-h6 Re1-d1 Rc6-c8 Ng3-h5 Ke8-f7 Nh5-g3 Nf5-e7 Ng3-e2 Kf7-e8
h2-h3 h6-h5 Ba3-b2 h5-h4 Ne2-d4 Ke8-f7 Bb2-a3 Ne7-g6 Nd4-b5 Ng6-f4 Ba3xb4
a5xb4 Nb5-d6+ Kf7-g6 Nd6xc8 Rf8xc8) -3.27/30 42} Rc8 {(Ra8-c8 b2-b3 Rf8-f7
h2-h3 Nf5-e7 a2-a3 Nb4-c6 h3-h4 h7-h6 h4-h5 Nc6-d8 a3-a4 Be6-g4 Rd1-h1
Nd8-e6 Kf2-e3 Bg4-f5 Bc1-a3 c7-c5 Ba3xc5) +3.38/33 45} 22. b3 {(b2-b3 c7-c5
d4xc5 Rc8xc5 Bc1-a3 a7-a5 Rd1-d2 g7-g5 Ba3xb4 a5xb4 a2-a3 b4xa3 Ra1xa3
Ke8-d7 Ra3-a4 Nf5-e7 Ra4-b4 b7-b5 Ne2-d4 Ne7-c6 Rb4xb5 Rc5xb5 Nd4xb5 Nc6xe5
Nb5-c3 Kd7-c6 Kf2-g3 Rf8-b8 h2-h4 g5xh4+ Kg3xh4 Rb8xb3 Nc3-e2 Kc6-d6 Kh4-g5
Rb3-b7 Kg5-h6 Rb7-d7 Rd2-d1 Ne5-c6 Ne2-c3) -3.40/32 70} Rf7 {(Rf8-f7 a2-a3
Nb4-c6 b3-b4 h7-h6 h2-h3 Nf5-h4 Rd1-d3 g7-g5 g2-g4 a7-a6 Ra1-a2 Be6-d7
Kf2-g3 Nh4-g6 Ne2-c3 Nc6-d8 a3-a4 Ke8-f8 Ra2-a3) +3.31/35 36} 23. a3
{(a2-a3 Nb4-c6 b3-b4 Nf5-h4 h2-h3 h7-h6 b4-b5 Nc6-a5 a3-a4 g7-g5 Ra1-a3
Na5-c4 Ra3-c3 Nh4-g6 g2-g4 a7-a6 b5xa6 b7xa6 Rd1-d3 c7-c5 Rd3-d1 Be6-d7
d4xc5 Ng6xe5 f3-f4 Rc8xc5 Kf2-g3 Bd7xa4 Rd1-e1 g5xf4+ Ne2xf4 Rc5-b5 Nf4xd5
Ke8-d7 Nd5-f4 Rb5-b3 Re1-d1+ Kd7-e8 Rc3xb3 Ba4xb3) -3.09/30 31} Nc6
{(Nb4-c6 b3-b4 h7-h6 Rd1-d3 Nf5-h4 Bc1-d2 Nh4-g6 Ra1-c1 Nc6-d8 Rd3-c3 c7-c6
a3-a4 Be6-d7 b4-b5 Nd8-e6 g2-g4 a7-a6 b5xa6 b7xa6 Kf2-g3) +3.52/33 28} 24.
b4 {(b3-b4 h7-h6 h2-h3 Nf5-h4 b4-b5 Nc6-a5 a3-a4 g7-g5 Ra1-a3 Na5-c4 Ra3-b3
b7-b6 g2-g4 Nh4-g6 Kf2-g3 Ke8-d7 Rb3-c3 c7-c6 Rc3-c2 Kd7-c7 Rc2-c3 Rc8-g8
b5xc6 Kc7xc6 a4-a5) -3.07/29 6} h6 {(h7-h6 Rd1-d3 Nf5-h4 g2-g3 Nh4-g6
Rd3-c3 Be6-f5 Bc1-e3 Ng6-f8 b4-b5 Nc6-e7 a3-a4 Nf8-e6 Ne2-f4 Ne6xf4 Be3xf4
Bf5-e6 Ra1-c1 c7-c6 Bf4-d2) +3.46/33 25} 25. h3 {(h2-h3 Nf5-h4 Bc1-d2 g7-g5
b4-b5 Nc6-d8 Ra1-c1 Be6-f5 a3-a4 Nd8-e6 Rc1-c3 Bf5-e4 Bd2-c1 Ke8-d7 Bc1-a3
h6-h5 Rd1-h1 Rc8-h8 Ne2-g3 Be4-g6 Ng3-e2 Nh4-f5 a4-a5 Rh8-c8 g2-g4 Nf5-h4
Ne2-g3 h5xg4 h3xg4 Ne6xd4) -3.07/32 21} g5 {(Nf5-h4 Bc1-d2 Be6-d7 a3-a4
Nh4-f5 Bd2-c3 Nc6-d8 g2-g4 Nf5-e7 Kf2-g3 Nd8-e6 f3-f4 g7-g6 Rd1-b1 h6-h5
Bc3-d2 a7-a6 b4-b5 Rf7-h7 Bd2-e3) +3.54/32 42} 26. g4 {(g2-g4 Nf5-h4 Rd1-d3
Ke8-d7 Ra1-b1 Rc8-f8 Rb1-b3 Kd7-c8 Kf2-g3 Nh4-g6 a3-a4 Be6-d7 b4-b5 Nc6-a5
Rb3-b2 Na5-c4 Rb2-c2 c7-c6 b5xc6 Bd7xc6 Rc2-a2 b7-b6 Bc1-a3 Rf8-g8 Ba3-c1
a7-a6 Rd3-d1 Bc6-d7 Ra2-a1 Bd7-e6 Rd1-d3 Kc8-b7 Ra1-b1 Kb7-a7 Rb1-a1
Be6-d7) -3.16/34 48} Nh4 {(Nf5-h4 Rd1-d3 Ke8-d7 Ra1-b1 Rc8-f8 Rb1-b3 Kd7-c8
Kf2-g3 Nh4-g6 a3-a4 Be6-d7 b4-b5 Nc6-a5 Rb3-b2 Na5-c4 Rb2-c2 a7-a6 Ne2-c3
Bd7-e6 Rc2-f2) +3.70/33 16} 27. Rd3 {(Rd1-d3 Ke8-d7 b4-b5 Nc6-a5 Kf2-g3
Nh4-g6 a3-a4 c7-c5 b5xc6/ep+ Rc8xc6 Ra1-a2 b7-b6 Bc1-d2 Na5-c4 Bd2-c1
Rc6-c8 Rd3-d1 Rc8-h8 Ra2-a1 Rh8-g8 Rd1-d3 Rg8-c8 Rd3-c3 Rf7-h7 Rc3-d3
Rh7-h8 Ra1-b1 Nc4-a5 Ne2-c3 Rh8-f8 Bc1-d2) -3.18/30 8} Kd7 {(Ke8-d7 b4-b5
Nc6-a5 a3-a4 Rc8-f8 Ne2-g1 Nh4-g6 Ng1-e2 Na5-c4 a4-a5 Ng6-h4 Ne2-g1 c7-c5
b5xc6/ep+ b7xc6 Ra1-b1 c6-c5 f3-f4 g5xf4 Ng1-e2) +3.82/33 18} 28. b5
{(b4-b5 Nc6-a5 Kf2-g3 Nh4-g6 Rd3-c3 Na5-c4 a3-a4 b7-b6 Bc1-e3 Rc8-f8 Be3-c1
Rf8-a8 Ra1-a2 a7-a6 Rc3-c2 Rf7-f8 Ne2-c3 Ng6-e7 Bc1-a3 h6-h5 Ba3-c1 Rf8-g8
Nc3-e2 c7-c6 Ne2-c3 Kd7-c7 Rc2-f2 Kc7-b7 Kg3-g2 c6xb5 a4xb5) -3.23/30 18}
Na5 {(Nc6-a5 a3-a4 Rc8-f8 Ra1-a3 Nh4-g6 Ra3-c3 Na5-c4 Kf2-g3 Rf8-a8 Rc3-b3
a7-a6 b5xa6 b7-b6 a4-a5 Nc4xa5 Rb3-b2 Ra8xa6 Rd3-a3 Ng6-e7 f3-f4) +3.93/33
19} 29. a4 {(a3-a4 c7-c5 b5xc6/ep+ Rc8xc6 Ra1-a3 Nh4-g6 Ra3-a2 Kd7-e8
Bc1-d2 Na5-c4 Bd2-c1 Rc6-b6 Kf2-g3 Rf7-h7 Kg3-f2 a7-a5 Ne2-g3 Rh7-c7 Ra2-a1
Ng6-f4 Bc1xf4 g5xf4 Ng3-h5 Rc7-f7 Ra1-a2 Rb6-b1 Kf2-g2 Ke8-d8 Kg2-f2 b7-b6
Kf2-g2 Rb1-c1 Kg2-f2 Rc1-h1 Kf2-g2 Rh1-b1 Kg2-f2 Nc4-b2 Rd3-d2 Nb2-d1+
Kf2-g2 Nd1-e3+ Kg2-f2) -3.29/33 42} Rcf8 {(Rc8-f8 Ne2-g1 Nh4-g6 Ng1-e2
Na5-c4 a4-a5 Ng6-h4 Ne2-g1 a7-a6 b5xa6 b7xa6 Rd3-b3 Kd7-c8 Kf2-g3 Nh4-g6
Ra1-b1 Nc4xa5 Rb3-a3 Na5-c6 Ng1-e2) +3.97/33 21} 30. Raa3 {(Ra1-a3 Nh4-g6
Kf2-g3 a7-a6 Rd3-d1 Na5-c4 Ra3-b3 a6xb5 a4xb5 Rf8-a8 Rd1-f1 Rf7-f8 Rf1-f2
Rf8-g8 Rb3-b1 Ra8-a5 f3-f4 g5xf4+ Ne2xf4 Ng6xf4 Rf2xf4 h6-h5 Rf4-f6 Ra5-a2
g4-g5 Nc4-d2 Bc1xd2 Ra2xd2 b5-b6 Rg8xg5+ Kg3-h4 Rg5-g8 b6xc7 Rd2xd4+
Kh4xh5) -3.23/32 26} Ng6 {(Nh4-g6 Kf2-g3 Na5-c4 Ra3-b3 Rf8-a8 Rd3-d1 a7-a6
Rd1-f1 a6xb5 a4xb5 Ra8-a1 Rf1-f2 Rf7-h7 Kg3-g2 b7-b6 Kg2-h2 Kd7-c8 Rb3-c3
Ra1-b1 f3-f4) +4.05/32 18} 31. Ra1 {(Ra3-a1 Ng6-h4 Ra1-a3 a7-a6 Ra3-c3
a6xb5 a4xb5 Na5-c4 Ne2-g3 Rf8-a8 Rc3-c2 Ra8-a5 Ng3-h5 Ra5xb5 Nh5-f6+ Kd7-c8
Rc2-a2 Kc8-b8 f3-f4 g5xf4 Bc1xf4 c7-c5 Bf4xh6 c5xd4 Bh6-g5 Nc4xe5 Rd3-a3
Nh4-g6 Kf2-g3 Ne5-c4 h3-h4 Kb8-c7 h4-h5 Ng6-e5 h5-h6 Rb5-b1 h6-h7 Rf7xh7
Bg5-f4 Rh7-h8) -3.26/33 38} Nc4 {(Na5-c4 Rd3-c3 a7-a6 Rc3-b3 Nc4-a5 Rb3-a3
Rf8-a8 Ra1-b1 Na5-c4 Ra3-a1 Ra8-h8 Rb1-b3 Nc4-a5 Rb3-b1 Rh8-f8 Ra1-a3
Na5-c4 Ra3-c3 Rf8-a8 Rc3-c2) +4.15/32 28} 32. Kg3 {(Kf2-g3 a7-a6 Ra1-a2
Rf8-a8 Ne2-c3 Rf7-f8 Ra2-h2 a6xb5 a4xb5 Ra8-a1 Nc3-e2 Ra1-b1 f3-f4 g5xf4+
Bc1xf4 Rf8-h8 Rd3-f3 Rb1xb5 Rh2-f2 h6-h5 Bf4-g5 h5xg4 h3xg4 Rh8-g8 Rf2-h2
Ng6-f8 Rh2-h6) -3.49/31 64} a6 {(a7-a6 Ra1-b1 Rf8-a8 Ne2-c3 b7-b6 Rb1-b4
a6xb5 a4xb5 c7-c5 b5xc6/ep+ Kd7xc6 Rb4-b1 Rf7-a7 Rd3-d1 Ra7-b7 Rb1-b5
Ra8-a1 Rb5-b1 Ra1xb1 Nc3xb1) +4.47/33 31} 33. bxa6 {(b5xa6 b7xa6 Rd3-b3
Nc4-a5 Rb3-c3 Rf8-b8 Ra1-a2 Na5-c4 a4-a5 Rb8-b1 Ra2-c2 Rf7-f8 Rc3-d3 c7-c5
Rc2-c3 c5xd4 Rc3xc4 d5xc4 Rd3xd4+ Kd7-c8 Bc1-a3 Rf8-d8 Ba3-d6 Ng6xe5 Bd6xe5
Rd8xd4) -3.49/26 3} bxa6 {(b7xa6 Rd3-b3 Nc4-a5 Rb3-c3 Rf8-b8 Ra1-a3 Rb8-b4
Kg3-f2 c7-c5 Rc3xc5 Na5-b3 Rc5-c3 Nb3xd4 Ne2xd4 Rb4xd4 Ra3-b3 Rd4-c4 Bc1-b2
Ng6xe5 Rb3-b7+) +4.67/29 6} 34. Rb3 {(Rd3-b3 Nc4-a5 Rb3-c3 Rf8-b8 Ra1-a3
Rb8-b1 Ra3-a2 Na5-c4 a4-a5 Rf7-f8 Ra2-c2 Rb1-a1 Rc3-d3 Ra1xa5 f3-f4 g5xf4+
Bc1xf4 h6-h5 g4xh5 Be6-f5 Rc2-c3 Bf5xd3 Rc3xd3 Ng6-e7 Bf4-g5 Ne7-f5+ Kg3-g4
Nf5xd4 Rd3xd4 Nc4xe5+ Kg4-g3 c7-c6 Rd4-f4 Ra5-a3+ Kg3-h4) -3.64/31 29} Na5
{(Nc4-a5 Rb3-c3 Rf8-b8 Ra1-a2 Na5-c4 Bc1-d2 Rb8-b4 Bd2-e1 c7-c5 Be1-f2
a6-a5 Kg3-h2 c5xd4 Ne2xd4 Nc4xe5 Kh2-g3 Ng6-f4 Kg3-h2 Ne5-c4 Nd4-b3)
+5.03/29 6} 35. Rc3 {(Rb3-c3 Rf8-b8 Ra1-a3 Rb8-b1 Ra3-a2 Na5-c4 a4-a5 c7-c5
Ra2-c2 Rb1-b4 d4xc5 Ng6xe5 f3-f4 g5xf4+ Bc1xf4 Ne5-c6 Rc3-d3 Rf7-f6 Rc2-c1
Nc4-e5 Bf4xe5 Nc6xe5 Rd3-e3 Ne5-c6 Rc1-d1 Be6-g8 Re3-d3) -3.55/21 1} Rb8
{(Rf8-b8 Ra1-a2 Na5-c4 Ra2-c2 Rb8-b4 f3-f4 g5xf4+ Bc1xf4 Ng6xf4 Ne2xf4
c7-c5 d4xc5 Rf7xf4 Kg3xf4 Nc4-a3+ Kf4-g3 Na3xc2 Rc3xc2 Kd7-c6 Kg3-h4)
+4.96/29 6} 36. Raa3 {(Ra1-a3 Rb8-b1 Ra3-a2 Na5-c4 a4-a5 Rf7-f8 Ra2-c2
Rb1-a1 Rc3-d3 Ra1xa5 f3-f4 g5xf4+ Bc1xf4 h6-h5 g4xh5 Be6-f5 Rc2-c3 Bf5xd3
Rc3xd3 Ng6-e7 h3-h4 Ra5-a2 Ne2-c3 Ra2-a1 Bf4-g5 Ne7-f5+ Kg3-g2 c7-c5 d4xc5
d5-d4) -3.71/28 9} Rb4 {(Rb8-b4 Kg3-f2 c7-c5 Rc3xc5 Na5-b3 Rc5-c2 Rb4-c4
Ra3xb3 Rc4xc2 a4-a5 Ng6-h4 Rb3-b7+ Kd7-c6 Rb7-b6+ Kc6-c7 Rb6-b3 Kc7-c8
Rb3-d3 Rf7-b7 Rd3-d2) +5.53/31 15} 37. Ra2 {(Ra3-a2 Na5-c4 a4-a5 Rb4-b1
Ra2-c2 Rf7-f8 Rc3-d3 c7-c5 Rd3-c3 Rb1-b4 d4xc5 Ng6xe5 f3-f4 Ne5-c6 Rc3-f3
g5xf4+ Ne2xf4 d5-d4 Rf3-f2 Rb4-b3+ Kg3-h4 Nc4-e5 Nf4xe6 Rf8xf2 Rc2xf2
Kd7xe6 Bc1xh6 d4-d3 Kh4-h5 Ne5-c4 Kh5-g5) -3.72/27 14} Nc4 {(Na5-c4 a4-a5
c7-c5 d4xc5 Ng6xe5 f3-f4 g5xf4+ Bc1xf4 Ne5-c6 Ra2-a1 d5-d4 Rc3-d3 Nc4-b2
Rd3-d2 Rb4-b3+ Kg3-h4 Nb2-d3 Bf4-g3 Be6-c4 Ra1-d1) +5.48/28 8} 38. a5
{(a4-a5 Rb4-b1 Ra2-c2 Rf7-f8 Rc3-d3 c7-c5 Rd3-c3 Rb1-b4 d4xc5 Ng6xe5 f3-f4
Ne5-c6 Rc3-f3 g5xf4+ Rf3xf4 Rf8xf4 Ne2xf4 Be6-f7 Nf4-h5 Rb4-b3+ Kg3-h2
Nc6-e5 Rc2-f2 d5-d4 Rf2-f6 Ne5-f3+ Kh2-h1 Bf7-d5) -3.76/26 2} c5 {(c7-c5
d4xc5 Ng6xe5 f3-f4 g5xf4+ Bc1xf4 Ne5-c6 Ra2-a1 d5-d4 Rc3-d3 Nc4-b2 Rd3-d2
Rb4-b3+ Kg3-h4 Nb2-d3 Bf4-g3 Be6-d5 Rd2xd3 Rb3xd3 Ne2-f4) +5.98/30 15} 39.
dxc5 {(d4xc5 Ng6xe5 f3-f4 g5xf4+ Bc1xf4 Ne5-c6 Ra2-a1 Nc4-b2 Bf4-d2 d5-d4
Rc3-a3 Rb4-b5 Ra1-b1 Be6-c4 Ne2-f4 Nc6-e5 Rb1-e1 Nb2-d3 Re1-e4 Nd3xf4
Bd2xf4 Ne5-c6 Bf4xh6 Rb5-b1 Kg3-h4 Bc4-d5 Re4-f4 Rf7xf4 Bh6xf4 Kd7-e6
Kh4-h5) -3.74/27 8} Ngxe5 {(Ng6xe5 f3-f4 g5xf4+ Bc1xf4 Ne5-c6 Ra2-a1 d5-d4
Rc3-d3 Nc4-b2 Rd3-d2 Rb4-b3+ Kg3-h4 Nb2-d3 Bf4-g3 Be6-d5 Ra1-d1 Bd5-e4
Kh4-h5 Nd3-f4+ Kh5-h4) +6.28/30 17} 40. f4 {(f3-f4 g5xf4+ Bc1xf4 Ne5-c6
Ra2-a1 Nc4-b2 Bf4-d2 d5-d4 Rc3-a3 Rb4-b5 Bd2xh6 Nb2-c4 Ra3-d3 Nc4-e5
Rd3xd4+ Nc6xd4 Ne2xd4 Rb5xc5 Ra1-b1 Rc5-c3+ Kg3-h4 Be6-d5 Rb1-d1 Rc3-d3
Rd1xd3 Ne5xd3 Kh4-g5 Bd5-e4 h3-h4 Nd3-e5 Nd4-f5 Kd7-e6 Kg5-f4 Be4xf5 g4xf5+
Ke6-d5) -3.77/24 3} gxf4+ {(g5xf4+ Bc1xf4 Ne5-c6 Ra2-a1 d5-d4 Rc3-d3 Nc4-b2
Rd3-d2 Rb4-b3+ Kg3-h4 Nb2-d3 Bf4-g3 Be6-d5 Ra1-d1 Bd5-e4 Kh4-h5 Nd3-f4+
Kh5-h4 Nf4xe2 Rd2xe2) +6.20/32 10} 41. Bxf4 {(Bc1xf4 Ne5-c6 Ra2-a1 Nc4-b2
Bf4-d2 d5-d4 Rc3-a3 Rb4-b5 Bd2xh6 Nb2-c4 Ra3-d3 Nc4-e5 Rd3xd4+ Nc6xd4
Ne2xd4 Rb5xc5 Ra1-e1 Rc5-c4 Re1-e4 Be6-d5 Re4xe5 Rc4xd4 Re5-f5 Rf7-e7
Rf5-f6 Bd5-e6 g4-g5 Rd4-d3+ Kg3-f4 Be6-d5 h3-h4 Re7-e4+ Kf4-f5) -3.73/26 4}
Nc6 {(Ne5-c6 Ra2-a1 d5-d4 Rc3-d3 Nc4-b2 Rd3-d2 Rb4-b3+ Kg3-h4 Nb2-d3 Bf4-g3
Be6-d5 Ra1-d1 Bd5-e4 Kh4-h5 Nd3-f4+ Kh5-h4 Nf4xe2 Rd2xe2 Be4-d5 Re2-f2)
+6.36/27 7} 42. Ra1 {(Ra2-a1 d5-d4 Rc3-d3 Be6-d5 Ra1-d1 Nc4-b2 Rd3xd4
Rb4xd4 Rd1xd4 Nc6xd4 Ne2xd4 Nb2-d3 c5-c6+ Bd5xc6 Bf4xh6 Rf7-f1 Nd4xc6
Kd7xc6 Kg3-g2 Rf1-f2+ Kg2-g3 Kc6-d5 h3-h4 Rf2-f1 h4-h5 Rf1-g1+ Kg3-f3
Nd3-e5+ Kf3-f4 Rg1xg4+ Kf4-f5 Rg4-g1 Bh6-e3 Rg1-f1+ Kf5-g5 Kd5-e6 Be3-b6
Rf1-f5+ Kg5-h4 Rf5-f4+ Kh4-g3 Rf4-g4+ Kg3-f2 Ke6-d5) -3.78/26 4} d4 {(d5-d4
Rc3-d3 Nc4-b2 Rd3-d2 Rb4-b3+ Kg3-h4 Nb2-d3 Bf4-g3 Be6-d5 Ra1-d1 Bd5-e4
Kh4-h5 Nd3-f4+ Kh5-h4 Nf4xe2 Rd2xe2 Be4-d5 Re2-f2 Rf7xf2 Bg3xf2) +6.31/30
6} 43. Rd3 {(Rc3-d3 Be6-d5 Ra1-d1 Nc4-b2 Rd3xd4 Nc6xd4 Rd1xd4 Rb4xd4 Ne2xd4
Nb2-d3 c5-c6+ Bd5xc6 Bf4xh6 Rf7-f1 Bh6-d2 Bc6-d5 Bd2-e3 Rf1-e1 Be3-d2
Re1-d1 Bd2-e3 Nd3-e5 h3-h4 Ne5-c4 Nd4-f5 Rd1-f1 Be3-f2 Nc4-d2 h4-h5 Nd2-e4+
Kg3-f4 Rf1xf2+ Kf4-e5 Bd5-e6) -3.73/31 7} Nb2 {(Nc4-b2 Rd3-d2 Rb4-b3+
Kg3-h4 Nb2-d3 Bf4-g3 Be6-d5 Ra1-g1 Bd5-e4 Bg3-d6 Kd7-e6 Rg1-g3 Ke6-d5
Rg3xd3 Rb3xd3 Ne2-f4+ Rf7xf4 Bd6xf4 Rd3-a3 Bf4xh6) +6.47/31 8} 44. Rd2
{(Rd3-d2 Rb4-b3+ Kg3-h4 Nb2-d3 Bf4xh6 Nd3-f2 Ne2-g1 Nf2-e4 Rd2xd4+ Nc6xd4
Ra1-d1 Kd7-c6 Rd1xd4 Ne4xc5 Rd4-d8 Be6-d7 Rd8-f8 Rf7xf8 Bh6xf8 Nc5-e6
Bf8-h6 Bd7-e8 Ng1-e2 Rb3-f3 Ne2-f4 Ne6xf4 Bh6xf4 Rf3xf4) -4.16/26 13} Rb3+
{(Rb4-b3+ Kg3-h4 Nb2-d3 Bf4-g3 Be6-d5 Ra1-g1 Bd5-e4 Bg3-d6 Kd7-e6 Rg1-g3
Ke6-d5 Rg3xd3 Rb3xd3 Ne2-f4+ Rf7xf4 Bd6xf4 Rd3-a3 Rd2-b2 Nc6xa5 Bf4xh6)
+6.32/31 8} 45. Kh4 {(Kg3-h4 Nb2-d3 Bf4xh6 Nd3-f2 Ne2-g1 Nf2-e4 Rd2xd4+
Nc6xd4 Ra1-d1 Kd7-c6 Rd1xd4 Ne4xc5 Rd4-d1 Be6-c4 Rd1-c1 Kc6-d5 Rc1-d1+
Rb3-d3 Rd1xd3+ Bc4xd3 Bh6-e3 Nc5-e4 g4-g5 Kd5-e6 g5-g6 Rf7-f6 Kh4-g4
Rf6xg6+ Kg4-f3 Rg6-f6+ Be3-f4 Ne4-c3 Kf3-e3 Bd3-g6 Bf4-g3 Bg6-h5 Ke3-d3
Nc3-d5 Ng1-e2 Bh5xe2+ Kd3xe2 Rf6-f7 h3-h4 Nd5-c3+ Ke2-e1 Ke6-d5 Bg3-f2
Rf7-f4 Bf2-e3 Rf4-e4) -4.18/25 4} Nd3 {(Nb2-d3 Bf4-h2 Rf7-f3 Ne2-g1 Rf3-f6
Ra1-d1 Be6-c4 Ng1-e2 Nd3-f2 Rd2xd4+ Kd7-c8 Ne2-g1 Nf2xd1 Rd4xc4 Nd1-e3
Rc4-e4 Kc8-d7 Kh4-h5 Rf6-f2 Bh2-d6) +6.45/32 9} 46. Bg3 {(Bf4-g3 Kd7-c8
Ne2-g1 Be6-c4 Ra1-d1 Nd3xc5 Rd2xd4 Nc6xd4 Rd1xd4 Bc4-b5 Rd4-d1 Nc5-e4
Bg3-e5 Rb3-d3 Rd1xd3 Bb5xd3 Be5-d4 Kc8-d7 Kh4-h5 Ne4-g5 Kh5-h4 Rf7-f1
Kh4-g3 Kd7-e8 Kg3-h4 Ng5-e6 Bd4-b6 Ne6-f4 Kh4-g3 Bd3-e4 Bb6-e3 Nf4-g6
Be3-d4 Be4-d5 Ng1-e2 Ng6-e7 Kg3-h4) -4.45/32 45} Bd5 {(Be6-d5 Ra1-g1 Bd5-e4
Bg3-d6 Kd7-e6 Rg1-g3 Ke6-d5 Rg3xd3 Rb3xd3 Ne2-f4+ Rf7xf4 Bd6xf4 Rd3-a3
Rd2-h2 Ra3xa5 Bf4-d6 d4-d3 Kh4-h5 Nc6-e5 Kh5xh6) +6.71/32 14} 47. Ra4
{(Ra1-a4 Nd3xc5 Rd2xd4 Nc6xd4 Ra4xd4 Rb3-d3 Rd4xd3 Nc5xd3 g4-g5 Bd5-e4
g5xh6 Kd7-e8 Ne2-d4 Rf7-f6 h6-h7 Be4xh7 Kh4-h5 Bh7-e4 Nd4-e2 Rf6-f5+
Kh5-h6) -3.96/23 2} Nxc5 {(Nd3xc5 Ra4xd4 Nc6xd4 Rd2xd4 Kd7-c6 Rd4-f4 Rb3-a3
Ne2-d4+ Kc6-d7 Nd4-c2 Ra3xa5 Nc2-e3 Rf7xf4 Bg3xf4 Bd5-f7 Bf4xh6 Nc5-e4
g4-g5 Kd7-c6 Ne3-g2) +7.08/32 15} 48. Rdxd4 {(Rd2xd4 Nc6xd4 Ra4xd4 Rb3-d3
Bg3-e5 Rd3xd4 Ne2xd4 Nc5-d3 Be5-b8 Rf7-f8 Bb8-h2 Bd5-e6 Kh4-h5 Rf8-f6 g4-g5
h6xg5 Kh5xg5 Rf6-f2 Bh2-c7 Nd3-c5 Bc7-b6 Nc5-e4+ Kg5-h6 Be6xh3 Nd4-b3
Rf2-f5 Nb3-d4 Rf5-f4 Nd4-b3) -4.04/29 9} Nxd4 {(Nc6xd4 Ra4xd4 Kd7-c6 Rd4-f4
Rb3-a3 Rf4-b4 Nc5-e4 Rb4-b6+ Kc6-c5 Bg3-e5 Ra3xa5 Rb6xh6 Kc5-c4 Ne2-f4
Bd5-b7 Be5-b8 Ra5-g5 Rh6-h5 Rg5-g8 Bb8-e5) +7.33/31 13} 49. Rxd4 {(Ra4xd4
Rb3-d3 Bg3-b8 Rf7-f3 Rd4xd3 Nc5xd3 g4-g5 Rf3-f2 Ne2-c3 h6xg5+ Kh4xg5 Bd5-c6
Bb8-a7 Rf2-g2+ Kg5-f5 Rg2-g3 Nc3-e2 Rg3xh3 Ne2-d4 Bc6-d5 Ba7-b6 Rh3-h8
Kf5-g6 Rh8-f8 Kg6-g5 Rf8-g8+ Kg5-f5) -4.10/26 4} Kc6 {(Kd7-c6 Rd4-f4 Rb3-a3
Rf4xf7 Bd5xf7 Bg3-f4 Ra3xa5 Bf4xh6 Ra5-a3 Bh6-c1 Ra3-a1 Kh4-g3 a6-a5 h3-h4
Bf7-c4 Ne2-d4+ Kc6-d5 Bc1-e3 a5-a4 h4-h5) +7.32/33 15} 50. Nf4 {(Ne2-f4
Bd5-e4 Rd4-d8 Kc6-b5 Rd8-e8 Kb5xa5 Re8-e5 Ka5-b4 Nf4-e6 Be4-d5 Ne6-d4
Rb3xg3 Kh4xg3 Rf7-d7 Nd4-c2+ Kb4-b5 Nc2-d4+ Kb5-c4 Nd4-f5 a6-a5 h3-h4
Kc4-b4 Nf5-e3 Bd5-e4) -3.73/24 3} Ne4 {(Nc5-e4 Nf4xd5 Ne4xg3 Nd5-f4 Rf7-f6
Nf4-d5 Rf6-f3 Nd5-e7+ Kc6-c5 Rd4-d5+ Kc5-c4 Rd5-d8 Ng3-e4 Kh4-h5 Rf3xh3+
Kh5-g6 Rh3-h4 g4-g5 h6xg5 Rd8-c8+) +8.83/33 15} 51. Nxd5 {(Nf4xd5 Ne4xg3
Nd5-f4 Rf7-d7 Rd4-a4 Kc6-b5 Ra4-a1 Rd7-d4 Nf4-e6 Ng3-f5+ Kh4-h5 Nf5-g7+
Ne6xg7 Rb3xh3+ Kh5-g6 Rd4xg4+ Kg6-h7 h6-h5 Ng7-e8 Rh3-c3 Ne8-f6 Rg4-a4
Ra1-b1+ Kb5xa5 Nf6xh5 Ra4-g4 Nh5-g7 Rc3-g3 Kh7-h8 Rg3-g1 Rb1-b2 Rg4-g5
Rb2-h2 Ka5-b4 Ng7-e6 Rg5-g3 Ne6-c5 a6-a5 Nc5-b7 Rg3-g8+ Kh8-h7 Rg1-g7+
Kh7-h6 Rg7xb7 Rh2-a2) -4.47/31 15} Nxg3 {(Ne4xg3 Nd5-f4 Rf7-f6 Nf4-d5
Rf6-f3 Nd5-e7+ Kc6-c5 Rd4-d5+ Kc5-c4 Rd5-d6 Ng3-e4 Rd6-c6+ Kc4-b5 Kh4-h5
Rf3xh3+ Kh5-g6 Rb3-g3 Kg6-f5 Ne4-c5 Rc6-d6) +9.87/31 19} 52. Nf4 {(Nd5-f4
Rf7-d7 Rd4-a4 Kc6-b5 Ra4-a1 Rd7-d4 Nf4-e6 Ng3-f5+ Kh4-h5 Nf5-g7+ Ne6xg7
Rb3xh3+ Kh5-g6 Rd4xg4+ Kg6-h7 h6-h5 Ng7-e8 Rh3-c3 Ne8-f6 Rg4-a4 Ra1-b1+
Kb5xa5 Nf6xh5 Ra4-g4 Rb1-h1 Rc3-c7+ Kh7-h8 Ka5-b6 Nh5-f6 Rg4-d4 Nf6-e8
Rd4-d8 Rh1-b1+ Kb6-a7 Rb1-e1 Rc7-d7 Kh8-g8 a6-a5 Kg8-f8 Rd8-a8 Re1-b1
Ka7-a6 Rb1-a1 Ka6-b6 Ra1-b1+ Kb6-a7) -4.56/30 9} Rf6 {(Rf7-f6 Nf4-d5 Rf6-f3
Nd5-e7+ Kc6-c5 Rd4-d5+ Kc5-c4 Rd5-d8 Ng3-e4 Kh4-h5 Rf3xh3+ Kh5-g6 Rh3-h4
Rd8-c8+ Ne4-c5 g4-g5 Rb3-g3 Ne7-c6 Rg3xg5+ Kg6-h7) +10.20/32 13} 53. Nd3
{(Nf4-d3 Ng3-f5+ g4xf5 Rf6xf5 Nd3-c1 Rb3-b5 Nc1-d3 Rf5-h5+ Kh4-g3 Rb5-b3
Kg3-g4 Rh5xa5 Kg4-f4 Ra5-h5 Kf4-g4 Rh5-b5 Kg4-f4 a6-a5 Kf4-e4 Rb5-h5
Nd3-e5+ Kc6-b7 Rd4-d7+ Kb7-a6 Rd7-d6+ Rb3-b6 Rd6-d8 Rb6-b4+ Ke4-d3 Rh5xh3+
Kd3-c2) -4.33/28 8} Ne2 {(Ng3-e2 Rd4-d8 Rb3-b5 Rd8-e8 Ne2-d4 Re8-d8 Rf6-d6
Rd8-f8 Rb5xa5 Nd3-b2 Kc6-d5 Nb2-d1 Ra5-a3 Nd1-b2 a6-a5 Rf8-b8 Rd6-f6 Rb8-b7
Rf6-f3 Kh4-h5) +10.57/31 24} 54. Rd8 {(Rd4-d8 Kc6-c7 Rd8-e8 Rb3xd3 Re8xe2
Rf6-f3 Kh4-h5 Rf3xh3+ Kh5-g6 Rd3-d5 Kg6-f6 Kc7-c6 Kf6-g6 Rd5-g5+ Kg6-f6
Kc6-b5 Re2-b2+ Kb5xa5 Rb2-a2+ Ka5-b5 Ra2-b2+ Kb5-c6 Rb2-c2+ Kc6-b6 Rc2-b2+
Kb6-c7 Kf6-e6 Kc7-c6 Rb2-c2+ Rg5-c5 Rc2-d2 a6-a5 Rd2-b2 Rc5-g5 Rb2-c2+
Kc6-b5 Rc2-b2+ Kb5-a6 Ke6-e7 Rg5xg4 Rb2-a2 Ka6-b5) -5.68/40 30} Rb5
{(Rb3-b5 Nd3-e1 Rb5xa5 Rd8-d2 Ne2-f4 Ne1-c2 Ra5-e5 Rd2-d1 a6-a5 Rd1-a1
Nf4-e6 Ra1-a3 Rf6-f4 Ra3-d3 a5-a4 Nc2-a3 h6-h5 Na3-b1 h5xg4 h3xg4)
+10.88/30 18} 55. Rc8+ {(Rd8-c8+ Kc6-d5 Rc8-c7 Ne2-d4 Nd3-e1 Rb5-b3 Rc7-d7+
Kd5-e4 Rd7-e7+ Rf6-e6 Re7-f7 Rb3-b2 Kh4-g3 h6-h5 Kg3-h4 Rb2-e2 Rf7-f1
Re6-e5 Kh4-g3 h5-h4+ Kg3xh4 Re5-b5 Ne1-g2 Nd4-f3+ Kh4-g3 Rb5-b3) -4.51/28
5} Kd5 {(Kc6-d5 Nd3-e1 Rb5xa5 Rc8-d8+ Rf6-d6 Rd8-e8 Rd6-e6 Re8-b8 Ra5-b5
Rb8-g8 Ne2-d4 Ne1-g2 Re6-d6 Ng2-e3+ Kd5-e4 Rg8-e8+ Ke4-d3 Ne3-d1 a6-a5
Nd1-f2+) +11.39/28 15} 56. Rc7 {(Rc8-c7 Ne2-d4 Nd3-e1 Rb5xa5 Ne1-d3 Ra5-b5
Nd3-e1 Rb5-c5 Rc7-d7+ Kd5-e4 Rd7-e7+ Rf6-e6 Re7-f7 Rc5-c3 Rf7-f8 Rc3-e3
Ne1-g2 Re3-f3 Rf8-d8 Rf3-d3 Rd8-f8 Nd4-f3+ Kh4-g3 Nf3-g5+ Kg3-h2 Rd3xh3+
Kh2-g1 Ng5-f3+ Kg1-f1 Nf3-d4 Rf8-f4+ Ke4-e5 Kf1-f2 a6-a5) -4.97/30 14} Nd4
{(Ne2-d4 Rc7-c1 Rb5xa5 Nd3-b4+ Kd5-d6 Rc1-c8 Kd6-e5 Rc8-e8+ Rf6-e6 Nb4-d3+
Ke5-e4 Nd3-f2+ Ke4-f3 Re8-d8 Kf3xf2 Rd8xd4 Kf2-f3 Rd4-d3+ Kf3-e4 Rd3-d2)
+12.13/31 17} 57. Ne1 {(Nd3-e1 Rb5xa5 Ne1-d3 Ra5-b5 Rc7-c8 Rb5-b3 Nd3-e1
Nd4-f3+ Ne1xf3 Rf6xf3 g4-g5 Rf3xh3+ Kh4-g4 Rb3-g3+ Kg4-f5 Rg3xg5+ Kf5-f4
a6-a5 Rc8-c1 a5-a4 Rc1-b1 Kd5-c4 Rb1-b7 Rh3-h4+ Kf4-e3 Rg5-b5 Rb7-c7+
Kc4-b4) -5.11/24 4} Rxa5 {(Rb5xa5 Ne1-d3 Ra5-b5 Nd3-e1 a6-a5 Rc7-c8 Nd4-f3+
Ne1xf3 Rf6xf3 Rc8-h8 Rb5-b3 Kh4-h5 Rf3xh3+ Kh5-g6 Kd5-d4 Kg6-h7 Rb3-b7+
Kh7-g6 Rb7-b5 Kg6-h7) +12.61/28 14} 58. Nd3 {(Ne1-d3 Ra5-b5 g4-g5 h6xg5+
Kh4-g4 Rf6-f3 Rc7-c3 Rf3-e3 Rc3-a3 a6-a5 h3-h4 Re3-e4+ Kg4-g3 Re4xh4 Kg3-g2
Nd4-b3 Nd3-f2 Rh4-d4 Kg2-g3 Kd5-c6 Kg3-f3 Rb5-f5+ Kf3-g2 a5-a4) -5.25/31
14} Rb5 {(Ra5-b5 Nd3-e1 a6-a5 Ne1-c2 Nd4xc2 Rc7xc2 Rb5-c5 Rc2-e2 Kd5-d4
Re2-e1 Kd4-d3 Re1-a1 Kd3-c2 Kh4-g3 Kc2-b2 Ra1-e1 a5-a4 h3-h4 Rc5-c3+
Kg3-g2) +13.81/30 13} 59. Rc8 {(Rc7-c8 Rb5-b3 Nd3-e1 Nd4-f3+ Ne1xf3 Rf6xf3
Rc8-d8+ Kd5-c6 Kh4-h5 Rf3xh3+ Kh5-g6 Rb3-b5 Rd8-c8+ Kc6-d7 Rc8-c1 Kd7-d6
Kg6-g7 Rb5-g5+ Kg7-h7 Rg5-c5 Rc1-b1 a6-a5 Rb1-a1 Kd6-c7 Ra1-a2 Kc7-c6
Kh7-g6 Rc5-g5+ Kg6-f7 Rg5xg4 Ra2xa5 Rh3-f3+ Kf7-e6) -5.68/32 13} a5 {(a6-a5
Rc8-c1 a5-a4 g4-g5 h6xg5+ Kh4-g4 Rf6-c6 Rc1-a1 Rc6-a6 h3-h4 g5xh4 Nd3-f4+
Kd5-c4 Ra1-c1+ Kc4-b3 Rc1-d1 Ra6-d6 Rd1-b1+ Kb3-c3 Rb1-c1+) +14.73/29 18}
60. Ne1 {(Nd3-e1 Rb5-c5 Rc8-a8 Kd5-e4 Ra8-e8+ Rf6-e6 Re8-f8 Rc5-c3 Rf8-f7
a5-a4 Rf7-a7 a4-a3 Ra7-a4 Ke4-d5 Ra4-a5+ Kd5-c4 Ne1-g2 Re6-e4 Ra5-a8 Kc4-b4
Ra8-b8+ Nd4-b5 Rb8-a8 Kb4-b3 Ra8-a5 a3-a2 Ra5xb5+ Re4-b4 Rb5-a5) -5.71/29
10} Rc6 {(Rf6-c6 Rc8-d8+ Kd5-c4 Ne1-g2 Rb5-b3 Ng2-f4 Nd4-f3+ Kh4-g3 Nf3-g5+
Kg3-g2 Ng5-e6 Nf4xe6 Rc6xe6 Kg2-f2 Rb3xh3 Rd8-c8+ Kc4-b4 Rc8-b8+ Kb4-a4
Rb8-g8) +15.71/29 20} 61. Rf8 {(Rc8-f8 Rc6-e6 Ne1-g2 Kd5-c4 Rf8-f1 Re6-e4
Ng2-f4 a5-a4 Rf1-c1+ Kc4-b3 Nf4-d3 Re4-e3 Nd3-c5+ Rb5xc5 Rc1xc5 Nd4-f3+
Kh4-g3 Nf3-g5+ Kg3-g2 a4-a3 Rc5-b5+ Kb3-c2 Rb5-b6 Re3-b3 Rb6-a6 Kc2-b2)
-5.02/20 0} Kc4 {(Kd5-c4 Rf8-f2 Kc4-b3 Rf2-f4 Kb3-c3 Ne1-f3 Nd4xf3+ Rf4xf3+
Kc3-b4 Rf3-f4+ Kb4-a3 Rf4-f3+ Rb5-b3 Rf3-f1 a5-a4 Rf1-a1+ Ka3-b4 Ra1-e1
Rc6-c3 Kh4-h5) +16.93/30 14} 62. Rf4 {(Rf8-f4 Kc4-d5 Rf4-f2 Rc6-e6 Ne1-f3
Nd4xf3+ Rf2xf3 Rb5-c5 Rf3-f1 a5-a4 Rf1-d1+ Kd5-c4 Rd1-c1+ Kc4-b5 Rc1-b1+
Kb5-a5 Rb1-a1 Re6-e3 g4-g5 h6xg5+ Kh4-g4 Re3-e6 Kg4-f3 Rc5-c3+ Kf3-g4 a4-a3
Kg4xg5 Ka5-a4 Kg5-f4 Re6-a6 h3-h4 Ka4-b3 h4-h5 Rc3-c5 Ra1-b1+ Kb3-c2)
-5.68/31 16} Kc3 {(Kc4-c3 Ne1-f3 Nd4xf3+ Rf4xf3+ Kc3-b4 Rf3-f4+ Kb4-a3
Rf4-f3+ Rb5-b3 Rf3-f1 a5-a4 Rf1-a1+ Ka3-b4 g4-g5 Rc6-c4+ Kh4-h5 Rb3xh3+
Kh5-g6 Rc4-g4 Ra1-b1+) +18.43/31 17} 63. Ng2 {(Ne1-g2 Rc6-e6 Rf4-f8 a5-a4
Ng2-f4 Re6-e3 Rf8-d8 Kc3-c4 Rd8-d6 a4-a3 Rd6xh6 a3-a2 Rh6-a6 Kc4-b3 Nf4-h5
Re3-e1 Kh4-g3 a2-a1Q Ra6xa1 Re1xa1 Nh5-g7 Kb3-c4 Ng7-f5 Nd4xf5+ g4xf5
Rb5xf5 h3-h4 Ra1-f1 Kg3-h3 Kc4-d3) -6.09/26 11} a4 {(a5-a4 Rf4-f7 a4-a3
Rf7-a7 Kc3-b3 Kh4-g3 a3-a2 Kg3-f4 Rc6-c4 Ra7xa2 Kb3xa2 Kf4-e3 Nd4-c6 Ng2-e1
Rc4-c3+ Ke3-d2 Ka2-b3 h3-h4 Nc6-e5 Kd2-e2) +23.73/29 22} 64. Rf1 {(Rf4-f1
Rc6-e6 Rf1-a1 Re6-e4 Kh4-g3 Rb5-b3 Ra1-a2 Kc3-c4+ Kg3-h4 a4-a3 Ra2-a1
Kc4-b4 Ra1-a2 Rb3-b2 Ra2-a1 Rb2xg2 Ra1-d1 a3-a2 Kh4-h5 Nd4-b3 h3-h4 Rg2-h2
Kh5xh6 Rh2xh4+ Kh6-g5 Re4xg4+ Kg5-f5) -6.51/27 9} a3 {(a4-a3 Ng2-e3 a3-a2
Rf1-d1 Rc6-a6 Rd1-a1 Kc3-d3 Ne3-g2 Rb5-b1 Ra1xa2 Ra6xa2 Ng2-f4+ Kd3-e4
Nf4-g6 Rb1-b3 Ng6-e7 Ke4-e5 Ne7-g6+ Ke5-d5 Ng6-h8) +28.60/29 16} 65. Ra1
{(Rf1-a1 Kc3-b2 Ra1-d1 a3-a2 Kh4-g3 Rb5-b3+ Kg3-h4 a2-a1Q Rd1xa1 Nd4-f3+
Kh4-g3 Kb2xa1 g4-g5 h6xg5 Kg3-g4 Rc6-c2 Kg4-f5 Rc2xg2 Kf5-e6 Rg2-e2+ Ke6-d6
Re2-e4 Kd6-d5 Re4-h4 Kd5-d6 Nf3-e1 Kd6-e6 Rh4xh3 Ke6-e5) -7.83/25 8} Kb2
{(Kc3-b2 Ra1-f1 a3-a2 Ng2-f4 a2-a1Q Nf4-d3+ Kb2-a2 Rf1xa1+ Ka2xa1 Nd3-f2
Ka1-b2 Nf2-d1+ Kb2-c2 Nd1-e3+ Kc2-b3 Ne3-f1 Kb3-b2 Nf1-h2 Kb2-c3 Kh4-g3)
+41.10/30 12} 66. Rd1 {(Ra1-d1 a3-a2 Kh4-g3 Rb5-b3+ Kg3-f4 Nd4-e2+ Kf4-e5
Rb3-b5+ Ke5-e4 Ne2-c3+ Ke4-f4 Nc3xd1 Kf4-g3 a2-a1Q g4-g5 h6xg5 h3-h4 g5xh4+
Kg3-h2 Kb2-b3) -10.52/25 9} a2 {(a3-a2 Kh4-g3 a2-a1Q Rd1xa1 Kb2xa1 Kg3-f4
Nd4-e6+ Kf4-e4 Ka1-a2 Ng2-e3 Rc6-c3 Ne3-d1 Rc3xh3 Nd1-f2 Ne6-g5+ Ke4-d4
Ka2-b3 Nf2-d1 Rh3-h2 Kd4-e3) +221.06/33 13} 67. Rd2+ {(Rd1-d2+ Kb2-b3
Rd2-d1 Rc6-e6 Kh4-g3 Kb3-c3 Ng2-f4 Re6-e3+ Kg3-h2 Rb5-b2+ Nf4-g2 Re3-e2
Rd1-c1+ Kc3-b4 Kh2-g3 Re2xg2+ Kg3-h4 Rb2-b1 Rc1-c7 a2-a1Q Rc7-d7 Nd4-f3+
Kh4-h5 Qa1-e5+ Kh5-g6 Qe5-e8+ Kg6-g7 Qe8xd7+ Kg7-f6 Qd7-d6+ Kf6-f7) -M33/32
5} Rc2 {(Rc6-c2 Rd2xc2+ Nd4xc2 Ng2-f4 a2-a1Q Nf4-d3+ Kb2-c3 Nd3-f2 Qa1-e1
Kh4-g3 Qe1-g1+ Kg3-f3 Nc2-d4+ Kf3-e4 Qg1xf2 g4-g5 Qf2-f3+) +M9/51 46} 68.
Rxc2+ {(Rd2xc2+ Kb2xc2 Ng2-e3+ Kc2-c1 Kh4-g3 a2-a1Q Kg3-f4 Qa1-a8 Ne3-d5
Qa8xd5 Kf4-e3 Qd5-f3+ Ke3xd4 Kc1-c2 g4-g5 Qf3-f4+) -M8/55 3} Nxc2 {(Nd4xc2
Ng2-f4 a2-a1Q Nf4-d3+ Kb2-c3 Nd3-f2 Qa1-e1 Kh4-g3 Qe1-g1+ Kg3-f3 Nc2-d4+
Kf3-e4 Qg1-e1+ Ke4-f4 Qe1-e5+) +M8/59 36} 69. Nf4 {(Ng2-f4 a2-a1Q Nf4-d3+
Kb2-c3 Nd3-c5 Rb5xc5 Kh4-g3 Qa1-g1+ Kg3-f3 Nc2-d4+ Kf3-e4 Qg1-e1+ Ke4-f4
Qe1-e5+) -M7/59 1} a1=Q {(a2-a1Q Nf4-d3+ Kb2-c3 Nd3-f2 Qa1-e1 Kh4-g3
Qe1-g1+ Kg3-f3 Nc2-d4+ Kf3-e4 Qg1-e1+ Ke4-f4 Qe1-e5+) +M7/66 43} 70. Nd3+
{(Nf4-d3+ Kb2-c3 Nd3-c5 Rb5xc5 Kh4-g3 Qa1-g1+ Kg3-f3 Nc2-d4+ Kf3-e4 Qg1-e1+
Ke4-f4 Qe1-e5+) -M6/97 2} Kc3 {(Kb2-c3 Nd3-f2 Qa1-e1 Kh4-g3 Qe1-g1+ Kg3-f3
Nc2-d4+ Kf3-e4 Qg1-e1+ Ke4-f4 Qe1-e5+) +M6/120 35} 71. Nc5 {(Nd3-c5 Rb5xc5
Kh4-g3 Qa1-g1+ Kg3-f3 Nc2-d4+ Kf3-e4 Qg1-e1+ Ke4-f4 Qe1-e5+) -M5/192 3}
Rxc5 {(Rb5xc5 Kh4-g3 Qa1-g1+ Kg3-f3 Rc5-g5 h3-h4 Qg1xg4+ Kf3-f2 Qg4-g2+)
+M5/209 41} 72. Kg3 {(Kh4-g3 Qa1-g1+ Kg3-f3 Nc2-d4+ Kf3-e4 Qg1-e1+ Ke4-f4
Qe1-e5+) -M4/245 0} Qg1+ {(Qa1-g1+ Kg3-f3 Rc5-g5 h3-h4 Qg1xg4+ Kf3-f2
Qg4-g2+) +M4/235 2} 73. Kf3 {(Kg3-f3 Nc2-d4+ Kf3-e4 Qg1-e1+ Ke4-f4 Qe1-e5+)
-M3/245 0} Nd4+ {(Nc2-d4+ Kf3-f4 Qg1-f2+ Kf4-e4 Qf2-f3+) +M3/212 0} 74. Kf4
{(Kf3-f4 Qg1-f2+ Kf4-e4 Qf2-f3+) -M2/245 0} Qf2+ {(Qg1-f2+ Kf4-e4 Qf2-f3+)
+M2/236 0} 75. Ke4 {(Kf4-e4 Qf2-f3+) -M1/162 0} Qf3# 0-1[/pgn]

[jefk]

you mean Fide world championships; and exclude the Queen's gambit.

It would surprise me if de la Bourdonnais didn't use gambits against McDonnell in 1834
https://en.wikipedia.org/wiki/List_of_W ... mpionships

For the rest you only seem to mean *opening* gambits, there probably have been
some WC games even later, whereby a pawn was sacrificed lateron in the game
this happens quite 'often', actually, relatively speaking
(the concept of pawn breaks is well known in middle game theory)
A a player as Tal who had been world champion often used sacrifices as we know
(and often incorrect by modern engine standards). Even in his 1960
world championship game against Botvinnik (game 6) he used
a knight sacrifice on move 21
https://en.wikipedia.org/wiki/World_Che ... nship_1960

PS the Jerome gambit is sacrificing a piece instead of a pawn and indeed
is fundamentally not so good of course. Yet many pawn gambits still are
completely correct, but maybe later on world championship contenders
became a bit risk averse. Not every GM has a Stockfish Nnue or Chess System
Tal 2 Nnue interface in his brain you know (or an adult toy or something like
that) so even nowadays many pawn gambits are correct; problem with opening
gambits at high level is that the opponent/contender usually is well prepared
which takes away a lot of the practical chances a player at lower level
may get with such gambits.

[Uri Blass]

About "Proof by demonstration of a data point", here is proof that the move 1.e4 is bad and loses:
[pgn][Event "Candidats Tournament"]
[Site "?"]
[Date "1962.??.??"]
[Round "?"]
[White "Fischer, Robert"]
[Black "Korchnoi, Viktor"]
[Result "0-1"]
[ECO "B88"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Bb3 Be7
8. O-O O-O 9. Be3 Na5 10. f4 b6 11. e5 Ne8 12. f5 dxe5 13. fxe6 Nxb3 14.
Nc6 Qd6 15. Qxd6 Bxd6 16. axb3 Bxe6 17. Nxa7 Rb8 18. Ra6 Nf6 19. Rxb6 Rxb6
20. Bxb6 Rb8 21. Bf2 Ng4 22. Nab5 Bb4 23. Ba7 Rb7 24. h3 Bxc3 25. bxc3
Rxb5 26. hxg4 Bxg4 27. c4 Rb7 28. Ra1 Bf5 29. c5 Bxc2 30. c6 Rxb3 31. g4
Rg3+ 32. Kf2 Rxg4 33. c7 Bf5 34. Be3 h5 35. Ra8+ Kh7 36. c8=Q Bxc8 37.
Rxc8 h4 38. Kf3 f5 39. Rf8 Kg6 40. Rh8 Rg3+ 41. Kf2 f4 42. Ba7 h3 43. Bb8
Kf5 44. Rf8+ Ke4 45. Re8 Rg5 46. Rh8 Rg2+ 47. Kf1 Rb2 48. Bxe5 Kxe5 49.
Rxh3 g5 0-1

[/pgn]
And here, Mr. Fischer was known to say that "1.e4 is best by test" but it can't be true.
He played 1.e4 and lost.

31.g4 was bad.
I guess 31.c7 Bf5 32.Rc1 that does not lose the g pawn is enough for a draw.

[jefk]

If 1.e4 is bad, then also 1...e5 must be considered bad for similar reasons
because of the as the awesome gambit move 2.f4!

The infamous King's gambit. Spassky won against Fischer
with the Kings gambit in 1960 (Mar del Plata).

https://www.chess.com/blog/kamalakanta/ ... is-spassky

And Spassky also had been a world champ, you know.

https://en.chessbase.com/post/spassky-p ... g-s-gambit

PS Later Fischer tried to refute the gambit (in CQ style maybe) with the Fischer defense (...d6)
but it's not a refutation. Even a king's gambit with 2.Bc4!? is playable.

[Chessqueen]

you mean Fide world championships; and exclude the Queen's gambit.

It would surprise me if de la Bourdonnais didn't use gambits against McDonnell in 1834
https://en.wikipedia.org/wiki/List_of_W ... mpionships


PS the Jerome gambit is sacrificing a piece instead of a pawn and indeed
is fundamentally not so good of course. Yet many pawn gambits still are
completely correct, but maybe later on world championship contenders
became a bit risk averse. Not every GM has a Stockfish Nnue or Chess System
Tal 2 Nnue interface in his brain you know (or an adult toy or something like
that) so even nowadays many pawn gambits are correct; problem with opening
gambits at high level is that the opponent/contender usually is well prepared
which takes away a lot of the practical chances a player at lower level
may get with such gambits.

I wonder if the 5 most sucessful gambits when you use 2 of the 4 top chess engines to play the best moves after taking the pawn can always win again the top 4 chess engines that gave the pawn for free. It is easy to pit any 2 of the top 4 chess engines to play these 5 chess Gambit listed here on this link ==>

[jefk]

these (in the Smirnov vid) seem to be the -currently- top 5 most
succesful gambits *statistically*, that is, (probably) for *all* players, in other words,
they often work against low(e)r rated players. But not or much less e.g. above
1800 level or so. And also not against top engines or superGm's of course.

So in this vid, these five are not the most solid gambits (except the marshall).
And solid gambits still can be more effective in human play against
lower rated players than ordinary openings; sometimes you even get
a quick win (not against 1800+ players ofcourse, that's another story).

And finally, again (yeah it becomes a bit boring now isn't it), the most
solid gambits (some twenty or more) are just as good as ordinary
openings *also* in top engine play, namely, they should result in a
draw but at least then you often get -much- more exciting games.