Does playing with White without the e2 or d2 pawn make it even?

[Chessqueen]

[quote="Uri Blass" post_id=926851 time=1654051901 user_id=192]
I got a draw at CCRL time control without the e pawn.
I decided to use Stockfish15 and not the latest version because stockfish15 is the version CCRL used.

4 cores per engine
stockfish use 2048 mbytes hash
Koivisto used 2064 mbytes hash(could not get it exactly 2048 but I do not think that it is very important.

Also using a different computer even if all the setting are correct and both engines are the same could produce a slightly different result, but the moves were slightly different starting after move 9. Be3.... . Next game I will switch the version of [White "Stockfish_22050407_x64_avx2"] and used all the settings T/C and the exact opening up to move 9. Be3.....as your computer chose to see what happen.

[pgn][Event "banksia game"]
[Site "*"]
[Date "2022.06.01"]
[Round "*"]
[White "Stockfish 15"]
[Black "Koivisto 8.0"]
[Result "1/2-1/2"]
[TimeControl "40/900+0"]
[Time "11:49:24"]
[Termination "repetition"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - 0 1"]
[SetUp "1"]


1. d4 Nf6 2. c4 e6 3. Nc3 Be7 4. Nf3 O-O 5. Bd3 a6 6. O-O d6 7. Re1 Re8 8.
h3 Nbd7 9. Be3 h6 10. Bc2 {(Bd3-c2 Be7-f8 Nf3-h2 Ra8-b8 b2-b4 b7-b5 c4xb5
a6xb5 Nh2-g4 Bf8-e7 Ng4xf6+ Be7xf6 Bc2-d3 c7-c6 Bd3-c2 d6-d5 Qd1-d3 Nd7-f8
Be3-f4 Rb8-a8 Re1-e3 Bf6-g5 Bf4xg5 h6xg5 Ra1-e1 Bc8-d7 a2-a4 Qd8-e7 a4xb5
Qe7xb4 b5xc6 Bd7xc6 Re3-g3) -0.68/36 86} Bf8 {(Be7-f8 b2-b3) +1.54/30 22}
11. Nh2 {(Nf3-h2 d6-d5 Nh2-g4 d5xc4 Qd1-f3 Nf6xg4 h3xg4 Bf8-e7 Ra1-d1
Nd7-f8 d4-d5 Be7-d6 d5xe6 Re8xe6 g4-g5 h6xg5 Nc3-e4 g5-g4 Qf3xg4 Re6-g6
Qg4-f4 Bc8-h3 Ne4xd6 Rg6xg2+ Kg1-h1 c7xd6 Bc2-f5 Bh3xf5 Kh1xg2 Qd8-f6)
-0.66/28 9} d5 {(d6-d5) +1.34/34 59} 12. cxd5 {(c4xd5) -0.64/32 51} exd5
{(e6xd5 Qd1-d3 Nd7-b6 Be3-f4 Bc8-e6 Re1-e2 g7-g6 Qd3-f3 Ra8-c8 Ra1-e1
Be6-d7 Re2xe8 Bd7xe8 Bc2-b3 c7-c6 Qf3-e3 Kg8-h7 Nh2-f3 Nf6-h5 Bf4-h2 Nh5-g7
Nf3-e5 Nb6-d7 Nc3-a4 Ng7-e6 Qe3-c3 Kh7-g7 Ne5xd7 Be8xd7 Na4-c5 Ne6xc5
Bh2-e5+ Kg7-g8 d4xc5) +1.25/31 14} 13. Qd3 {(Qd1-d3 Nd7-b6 Be3-f4 Bc8-e6
Re1-e2 g7-g6 Qd3-f3 Be6-d7 Bf4-e5 Bf8-g7 Ra1-e1 c7-c6 b2-b3 Ra8-c8 Bc2-b1
c6-c5 d4xc5 Rc8xc5 Be5-d4 Rc5-c6 Re2xe8+ Bd7xe8 Qf3-d3 Rc6-c8 Qd3-e3 Nb6-a8
f2-f4 Na8-c7 f4-f5 g6-g5 h3-h4 g5-g4 Qe3-f4 h6-h5 Nh2-f1 Be8-c6 Nf1-g3
Nc7-e8 Qf4-e3 Qd8-d6) -0.65/34 16} Nb6 {(Nd7-b6 Be3-f4 Bc8-e6 Re1-e2 g7-g6
Qd3-f3 Ra8-c8) +1.12/32 20} 14. Bf4 {(Be3-f4) -0.61/31 19} Be6 {(Bc8-e6
Re1-e2 g7-g6 Qd3-f3 c7-c6 Ra1-e1 Be6-d7 Bf4-e5 Bf8-g7 b2-b3 Ra8-c8 Qf3-f4
Nb6-a8 Nc3-a4 Na8-c7 Na4-c5 Nc7-e6 Nc5xe6 Re8xe6 Nh2-f3 Nf6-h7 Bc2-d3
Nh7-g5 Nf3-h2 f7-f6 Be5-d6 f6-f5 Bd6-e5 Qd8-f8 Nh2-f3 Ng5xf3+ Qf4xf3 Rc8-e8
Qf3-f4 Bg7xe5 Re2xe5 Kg8-g7 Re5xe6 Re8xe6 Re1xe6 Bd7xe6) +1.08/34 29} 15.
Re2 {(Re1-e2 g7-g6 Qd3-f3 Be6-d7 Bf4-e5 Bf8-g7 Ra1-e1 c7-c6 b2-b3 Ra8-c8
Bc2-b1 c6-c5 d4xc5 Rc8xc5 Be5-d4 Rc5-c6 Re2xe8+ Bd7xe8 Qf3-d3 Nb6-d7 Nh2-f3
Nd7-f8 b3-b4 Nf8-e6 Bd4-e5 Ne6-g5 Nf3xg5 h6xg5 Be5-d4 Rc6-c8 Bb1-c2 Be8-c6
Bc2-b3 Qd8-d6 Re1-d1 Qd6xb4 Bd4xf6 Bg7xf6) -0.58/34 18} g6 {(g7-g6 Qd3-f3
c7-c6 Ra1-e1 Be6-d7 Bf4-e5 Bf8-g7 b2-b3 Ra8-c8 Qf3-f4 Bd7-e6 Nh2-f3 g6-g5)
+1.26/32 20} 16. Qf3 {(Qd3-f3 Be6-d7 Bf4-e5 Bf8-g7 Ra1-e1 c7-c6 b2-b3
Ra8-c8 Bc2-b1 c6-c5 d4xc5 Rc8xc5 Be5-d4 Rc5-c6 Re2xe8+ Bd7xe8 Qf3-d3 Nb6-d7
Nh2-f3 Bg7-f8 Re1-d1 Rc6-e6 Bd4-e3 Nd7-e5 Nf3xe5 Re6xe5 Qd3-d2 Qd8-e7 b3-b4
Be8-c6 a2-a3 Bf8-g7 Bb1-a2 Re5-h5 Ba2-b3 Qe7-e6 Be3-d4) -0.61/33 16} Bd7
{(Be6-d7 Bf4-e5) +1.16/32 31} 17. Be5 {(Bf4-e5 Bf8-g7 Ra1-e1 c7-c6 b2-b3
Ra8-c8 Bc2-b1 c6-c5 d4xc5 Rc8xc5 Be5-d4 Rc5-c6 Re2xe8+ Bd7xe8 Qf3-d1 Rc6-c8
Nc3-e2 Be8-b5 Ne2-f4 Qd8-d6 a2-a4 Qd6xf4 a4xb5 Nb6-d7 b5xa6 b7xa6 Nh2-f3
Qf4-d6 g2-g3 Nd7-c5 Kg1-g2 Nf6-d7 h3-h4 Nc5-e6 Bd4xg7 Kg8xg7) -0.61/33 16}
Bg7 {(Bf8-g7 Ra1-e1 c7-c6 Bc2-d3 a6-a5 Qf3-f4) +1.19/31 18} 18. Rae1
{(Ra1-e1 c7-c6) -0.69/34 78} c6 {(c7-c6 Bc2-d3) +1.19/31 37} 19. b3 {(b2-b3
Ra8-c8 Bc2-b1 c6-c5 d4xc5 Rc8xc5 Be5-d4 Rc5-c6 Re2xe8+ Bd7xe8 Qf3-d1 Rc6-c8
Nc3-e2 Be8-b5 Nh2-f3 Bb5xe2 Qd1xe2 Qd8-d6 Qe2-d2 Nb6-d7 Re1-d1 Qd6-c6
Bd4-b2 Qc6-e6 Bb2-d4 Qe6-d6 g2-g3 Qd6-e6 Kg1-g2 Nf6-e4 Qd2-e3 Nd7-f6 Qe3-d3
Rc8-e8 b3-b4) -0.69/34 18} Rc8 {(Ra8-c8) +0.83/32 40} 20. Bb1 {(Bc2-b1
c6-c5 d4xc5 Rc8xc5 Be5-d4 Rc5-c8 Re1-d1 Rc8-c6 Re2xe8+ Bd7xe8 Qf3-d3 Rc6-e6
Nh2-f3 Be8-c6 Bd4-e3 Re6-e8 Nf3-d4 Bc6-d7 Qd3-d2 h6-h5 Bb1-d3 Nb6-a8 Nc3-e2
Na8-c7 Ne2-f4 Bd7-c6 Rd1-c1 Qd8-d6 Nd4xc6 b7xc6) -0.53/31 16} Nh5 {(Nf6-h5
g2-g4 Nh5-f6 Qf3-f4 Nf6-h7 Qf4-g3 Bg7-f6 Nh2-f3) +1.28/32 29} 21. g4
{(g2-g4 Nh5-f6 h3-h4 c6-c5 h4-h5 g6-g5 d4xc5 Rc8xc5 Be5-d4 Re8xe2 Nc3xe2
Rc5-c6 Ne2-g3 Nb6-c8 Bd4xf6 Qd8-a5 Re1-d1 Rc6xf6 Qf3xd5 Qa5xd5 Rd1xd5
Rf6-d6 Bb1-e4 Bd7-e6 Rd5-c5 Rd6-d2 Ng3-f5 Bg7-f8 Rc5-c2 Rd2xc2 Be4xc2
Nc8-d6 Kg1-g2 b7-b5) -0.37/29 16} Nf6 {(Nh5-f6 Qf3-f4 Nb6-a8 Nc3-a4 Na8-c7
Na4-c5 Nc7-e6 Nc5xe6 Re8xe6 Nh2-f3 Qd8-e7 Kg1-g2 Rc8-e8 Re2-e3 Qe7-d8
Be5-c7 Qd8-c8 Re3xe6 Re8xe6 Bc7-e5 Nf6-h7 Re1-e3 Nh7-f8 g4-g5 h6-h5 Be5xg7
Re6xe3 Bg7xf8 Bd7xh3+ Kg2-g3 Re3xf3+ Qf4xf3 Kg8xf8 Bb1xg6 Qc8-g4+ Qf3xg4
Bh3xg4) +1.02/30 12} 22. h4 {(h3-h4 c6-c5 h4-h5 g6-g5 d4xc5 Rc8xc5 Be5-d4
Re8xe2 Nc3xe2 Rc5-c6 Ne2-g3 Nb6-c8 Bd4xf6 Qd8-a5 Re1-d1 Rc6xf6 Qf3xd5
Qa5xd5 Rd1xd5 Rf6-d6 Rd5xd6 Nc8xd6 Ng3-f5 Nd6xf5 Bb1xf5 Bd7-c6 Nh2-f1
Kg8-f8 Nf1-d2 Kf8-e7 Bf5-e4 Ke7-d6 Kg1-g2 b7-b5 Be4xc6 Kd6xc6 f2-f4 g5xf4
Kg2-f3 Kc6-c5 Kf3xf4 Kc5-b4) -0.37/35 20} Rf8 {(Re8-f8 Qf3-g3 h6-h5 Be5xf6
Bg7xf6 g4xh5 Bf6xh4 Qg3-g2 Qd8-g5 Nh2-f3 Qg5xh5 Re2-e5 Qh5-h7 Nf3xh4 Qh7xh4
Bb1xg6 Bd7-h3 Bg6xf7+ Kg8xf7 Re5-e7+ Qh4xe7 Re1xe7+ Kf7xe7 Qg2xh3 Rc8-e8
Nc3-e2 Ke7-d8 Qh3-h6 Rf8-f7 Ne2-f4 Nb6-d7 Kg1-g2 Kd8-c8 Nf4-d3 Kc8-b8 a2-a4
Re8-g8+ Kg2-f1 Rf7-g7 Qh6-d6+ Kb8-a8 Kf1-e2) +1.02/33 69} 23. Qg2 {(Qf3-g2
c6-c5 h4-h5 c5xd4 Be5xd4 g6-g5 Bd4xb6 Qd8xb6 Nc3xd5 Nf6xd5 Qg2xd5 Rf8-d8
Re2-e7 Bd7-e6 Qd5xb7 Qb6xb7 Re7xb7 Bg7-c3 Re1-f1 Bc3-e5 Bb1-f5 Be6xf5 g4xf5
Be5xh2+ Kg1xh2 Rd8-d4 Rf1-e1 Rd4-f4 Re1-e2 Kg8-g7 Rb7-b6 a6-a5 f5-f6+
Rf4xf6 Rb6-b5 a5-a4 Rb5-b4 a4xb3 a2xb3 Rc8-c6 Kh2-g2) -0.04/30 19} c5
{(c6-c5 h4-h5 c5xd4 Be5xd4 g6-g5 Bd4xf6 Qd8xf6 Nc3xd5 Nb6xd5 Qg2xd5 Bd7-b5
Re2-e3 Qf6-f4 Qd5xb7 Bg7-c3 Re3-f3 Qf4-d4 Rf3xf7 Rf8xf7 Qb7xc8+ Kg8-g7
Re1-e6 Qd4xf2+ Kg1-h1 Bc3-f6 Qc8-c2 Bf6-d4 Qc2xf2 Rf7xf2 Re6-g6+ Kg7-f8
Bb1-e4 Rf2xa2 Rg6xh6 Ra2-a1+ Kh1-g2 Ra1-g1+ Kg2-h3 Bd4-e5 Be4-g2) +0.30/33
54} 24. h5 {(h4-h5 c5xd4 Be5xd4 g6-g5 Bd4xf6 Qd8xf6 Nc3xd5 Nb6xd5 Qg2xd5
Rf8-d8 Qd5xb7 Bd7-b5 Re2-e3 Rc8-c3 Re3-f3 Rc3xf3 Qb7xf3 Qf6-c3 Re1-d1
Rd8xd1+ Qf3xd1 Bg7-d4 Nh2-f1 Qc3-h3 Bb1-e4 Bd4-c5 Be4-g2 Qh3-h4 Nf1-e3
Bc5xe3 f2xe3 Qh4-g3 Qd1-f3 Qg3-e1+ Kg1-h2 Qe1-d2 Qf3-a8+ Kg8-g7 Qa8-e4
Qd2-f2 Kh2-h1 Bb5-e2 Qe4-e5+ Qf2-f6 Qe5-e4 Qf6-f2) 0.00/36 18} cxd4 {(c5xd4
Be5xd4 g6-g5 Bd4xf6 Qd8xf6 Nc3xd5 Nb6xd5 Qg2xd5 Bd7-b5 Re2-e3 Rc8-c7 a2-a4
Bb5-d7 Qd5-d3 Rf8-d8 Nh2-f3 Rc7-c3 Qd3-h7+ Kg8-f8 Nf3-e5 Rc3xe3 Ne5xd7+
Rd8xd7 Re1xe3 Rd7-d1+ Kg1-g2 Qf6-c6+ Bb1-e4 Qc6-c1 Kg2-h3 Rd1-f1 Qh7-f5
Bg7-d4 Be4-d5 Qc1xe3+ f2xe3 Rf1xf5 g4xf5 Bd4xe3 Bd5xb7 a6-a5 f5-f6 Be3-f2
Kh3-g4 Bf2-e1 Bb7-e4 Kf8-g8 Be4-d5 Kg8-f8) +0.21/34 20} 25. Bxd4 {(Be5xd4)
-0.20/35 38} g5 {(g6-g5 Bd4xf6 Qd8xf6 Nc3xd5 Nb6xd5 Qg2xd5 Rf8-d8 Qd5xb7
Rc8-c3 Qb7-e4 Bd7-c6 Qe4-f5 Bc6-b5 Re2-e5 Qf6xf5 Re5xf5 Bg7-f8 Rf5-f3
Bf8-b4 Rf3xc3 Bb4xc3 Re1-c1 Bc3-d2 Rc1-c5 Bd2-b4 Rc5-c1 Bb4-a3 Rc1-e1
Rd8-d4 Bb1-e4 Rd4-d2 Nh2-f3 Rd2xa2 Re1-d1 Ba3-c5 Rd1-d8+ Kg8-g7 Nf3-d4
Bc5xd4 Rd8xd4 Ra2-e2 Be4-d3) +0.40/34 19} 26. Qf3 {(Qg2-f3 Bd7-e6 Qf3-d3
Nb6-d7 f2-f3 Nd7-c5 Qd3-c2 Rf8-e8 Nh2-f1 b7-b5 Re2-e3 b5-b4 Nc3-e2 Be6-d7
Re3xe8+ Qd8xe8 Qc2-d2 Nc5-e6 Nf1-g3 Ne6xd4 Ne2xd4 Qe8-d8 Kg1-g2 a6-a5
Bb1-f5 Bg7-f8 Qd2-e2 Qd8-b6 Bf5xd7 Nf6xd7 Ng3-f5 Nd7-f6 Qe2-d2 Rc8-c3
Nd4-e2 Rc3-c5 Ne2-d4) 0.00/38 97} Be6 {(Bd7-e6 Nc3-d1 Rc8-c1 Nd1-e3 Rc1xe1+
Re2xe1 Rf8-e8 Nh2-f1 Nf6-d7 Bd4xg7 Kg8xg7 Ne3-f5+ Be6xf5 Re1xe8 Qd8xe8
Bb1xf5 Qe8-e5 Nf1-e3 Nd7-f6 Bf5-c2 Kg7-f8 Ne3-f5 Nf6-g8 Qf3-d3 Nb6-c8
Qd3-d2 Nc8-e7 Qd2-b4 Ng8-f6 Nf5xh6 Qe5-e2 Qb4-d4 Nf6-g8 Nh6xg8 Kf8xg8
Bc2-f5 Ne7xf5 g4xf5 Qe2xh5 Qd4xd5) +0.22/33 16} 27. Qd3 {(Qf3-d3 Nb6-d7
f2-f3 Nd7-c5 Qd3-c2 Rf8-e8 Nh2-f1 b7-b5 Re2-e3 b5-b4 Nc3-e2 Be6-d7 Re3xe8+
Qd8xe8 Nf1-g3 Nc5-e6 Qc2-d2 Ne6xd4 Ne2xd4 Qe8-d8 Kg1-g2 Bg7-f8 Bb1-f5
Rc8-c3 Ng3-e2 Rc3-c5 Bf5xd7 Qd8xd7 Ne2-g3 Qd7-c7 Ng3-f5 Rc5-c3 Re1-e2
Qc7-c5 Re2-e3 Qc5-a5 Re3-e2) 0.00/39 13} Nbd7 {(Nb6-d7 f2-f3 Qd8-a5)
+0.52/29 16} 28. f3 {(f2-f3 Qd8-a5 Nh2-f1 Rf8-d8 Re2xe6 f7xe6 Re1xe6 Rd8-e8
b3-b4 Qa5-d8 Re6xe8+ Qd8xe8 Nc3xd5 Qe8-e6 Nd5xf6+ Nd7xf6 Nf1-e3 Rc8-c1+
Kg1-g2 Rc1xb1 Qd3xb1 Nf6xh5 g4xh5 Bg7xd4 Ne3-g4 Qe6-e2+ Kg2-g3 Bd4-e5+
Ng4xe5 Qe2xe5+ Kg3-h3 Qe5-e6+ Kh3-g2 g5-g4 Qb1-d1 g4xf3+ Kg2xf3 Kg8-f7
Qd1-c1 Qe6-d5+ Kf3-g3 Qd5xh5 Qc1-c7+ Kf7-g6 Qc7xb7 Qh5-e5+ Kg3-g2 Qe5-e2+
Kg2-g3 Qe2-e1+ Kg3-g2) 0.00/39 65} Nc5 {(Nd7-c5) +0.43/33 60} 29. Qc2
{(Qd3-c2) 0.00/36 17} Re8 {(Rf8-e8 Nh2-f1 b7-b5 Nf1-g3 b5-b4 Ng3-f5 Be6xf5
Qc2xf5 Re8xe2 Nc3xe2 Nc5-e6 Bd4-e5) +0.57/28 10} 30. Nf1 {(Nh2-f1 Rc8-c6
Qc2-d2 Nc5-d7 Nc3-d1 Qd8-c7 Kg1-g2 Qc7-f4 Bd4-e3 Qf4-d6 Be3-d4) 0.00/33 14}
b5 {(b7-b5 Nf1-g3) +0.36/34 58} 31. Qd1 {(Qc2-d1 Nc5-d7 Qd1-d3 Qd8-a5
Nc3xd5 Be6xd5 Re2xe8+ Rc8xe8 Re1xe8+ Nf6xe8 Bd4xg7 Ne8xg7 Qd3xd5 Nd7-f6
Qd5-e5 Qa5-b6+ Kg1-g2 Ng7-e6 Nf1-e3 Qb6-d8 Kg2-f1 Qd8-d2 Ne3-f5 Qd2-d1+
Kf1-f2 Qd1xb1 Nf5xh6+ Kg8-h7 Qe5xf6 Qb1-c2+ Kf2-g1 Qc2-c1+ Kg1-f2) 0.00/37
23} b4 {(b5-b4) +0.37/34 47} 32. Bxf6 {(Bd4xf6 Qd8xf6 Nc3xd5 Qf6-d4+ Kg1-h1
Qd4xd1 Re1xd1 Be6xd5 Re2xe8+ Rc8xe8 Rd1xd5 Re8-e1 Bb1-c2 Nc5-e6 Rd5-d1
Re1-e2 Rd1-d2 Re2-e1) 0.00/40 17} Qxf6 {(Qd8xf6) +0.39/37 17} 33. Nxd5
{(Nc3xd5 Qf6-d4+ Kg1-h1 Qd4xd1 Re1xd1 Be6xd5 Re2xe8+ Rc8xe8 Rd1xd5 Re8-e1
Bb1-c2 Nc5-e6 Rd5-d1 Re1-e2 Rd1-d2 Re2-e1) 0.00/46 21} Qd4+ {(Qf6-d4+
Kg1-h1 Qd4xd1) +0.42/35 12} 34. Kh1 {(Kg1-h1 Qd4xd1 Re1xd1 Rc8-d8 Bb1-f5
Kg8-f8 Re2-d2 Bg7-c3 Nd5xc3 Rd8xd2 Rd1xd2 b4xc3 Rd2-c2 Be6xf5 g4xf5 Nc5-d3
Rc2xc3 Nd3-f4 Rc3-c6 Re8-e1 Kh1-g1 Kf8-g7 Rc6xa6 Re1-b1 Kg1-f2 Nf4-h3+
Kf2-g3 Nh3-f4) 0.00/42 48} Qxd1 {(Qd4xd1 Re1xd1 Be6xd5 Re2xe8+ Rc8xe8
Rd1xd5 Re8-e1 Bb1-c2 Re1xf1+ Kh1-g2 Rf1-a1 Rd5xc5 Ra1xa2 Rc5-c8+ Bg7-f8
Kg2-f2 Ra2-b2 Kf2-e3 Kg8-g7 Rc8-c6 Bf8-e7 Ke3-d3 a6-a5 Bc2-d1 Rb2-a2 Bd1-c2
Be7-f6 Rc6-c5 Bf6-c3 Rc5-c8 Bc3-e5 Rc8-c6 Be5-f4) +0.38/38 29} 35. Rxd1
{(Re1xd1 Be6xd5 Re2xe8+ Rc8xe8 Rd1xd5 Re8-e1 Bb1-c2 Nc5-e6 Bc2-d3 Kg8-f8
Bd3-c4 Kf8-e7 Rd5-a5 Bg7-d4 Ra5xa6 Re1-c1 Ra6-a5 Bd4-c5 Kh1-h2 Ke7-d7
Bc4xe6+ f7xe6 Kh2-g2 Rc1-c2+ Kg2-h1 Kd7-c6 Nf1-g3 Rc2-c1+ Kh1-g2 Rc1-c2+)
0.00/45 14} Bxd5 {(Be6xd5 Re2xe8+ Rc8xe8 Rd1xd5 Re8-e1 Bb1-c2 Re1xf1+
Kh1-g2 Rf1-a1 Rd5xc5 Ra1xa2 Rc5-c8+ Bg7-f8 Kg2-f2 Ra2-b2 Kf2-e3 Kg8-g7
Ke3-d4 Bf8-d6 Rc8-c6 Bd6-g3 Bc2-e4 Rb2xb3 Kd4-c4 Rb3-c3+ Kc4xb4 Rc3xc6
Be4xc6 Kg7-f6 Bc6-d5 Bg3-e1+ Kb4-c4 a6-a5 Kc4-b5 Be1-d2 Bd5-c4 Kf6-e7
Bc4-b3 Bd2-c3 Bb3-c2 Bc3-g7 Kb5xa5 Ke7-d6 Ka5-b4 Kd6-d5 Bc2-f5 Kd5-d4
Kb4-b3 Kd4-e3 Kb3-c2 Ke3xf3) +0.20/43 43} 36. Rxe8+ {(Re2xe8+ Rc8xe8 Rd1xd5
Re8-e1 Bb1-c2 Nc5-e6 Bc2-d3 Kg8-f8 Bd3-c4 Re1-c1 Rd5-a5 Bg7-d4 Ra5xa6
Bd4-c5 Kh1-g2 Ne6-f4+ Kg2-h1 Rc1-c3 Ra6-a5 Bc5-f2 Nf1-d2 Bf2-d4 Ra5-b5
Rc3-c2 Nd2-f1 Rc2xa2 Rb5xb4 Ra2-g2 Rb4-b7 Rg2-g1+ Kh1-h2 f7-f6 Rb7-b8+
Kf8-e7 Rb8-h8 Bd4-f2 Rh8-h7+ Ke7-d6 Rh7xh6 Rg1-g2+ Kh2-h1 Rg2-g1+) 0.00/44
14} Rxe8 {(Rc8xe8 Rd1xd5 Re8-e1 Bb1-c2 Re1xf1+ Kh1-g2 Rf1-a1 Rd5xc5 Ra1xa2
Rc5-c8+ Bg7-f8 Kg2-f2 Ra2-b2 Kf2-e3 Kg8-g7 Ke3-d4 Bf8-d6 Rc8-c6 Bd6-f4
Bc2-e4 Rb2xb3 Kd4-c4 Rb3-c3+ Kc4xb4 Rc3xc6 Be4xc6 Bf4-d2+ Kb4-c4 Kg7-g8
Kc4-d3 Bd2-f4 Kd3-d4 a6-a5 Kd4-d5 Kg8-f8 Bc6-a4 Kf8-e7 Kd5-e4 Ke7-f6 Ke4-d5
Bf4-e3 Ba4-b3 Be3-c1 Bb3-a4 Bc1-f4 Kd5-e4) +0.19/42 10} 37. Rxd5 {(Rd1xd5
Re8-e1 Bb1-c2 Re1xf1+ Kh1-g2 Rf1-a1 Rd5xc5 Ra1xa2 Rc5-c8+ Bg7-f8 Kg2-f2
Kg8-g7 Kf2-e3 Ra2-b2 Ke3-d3 a6-a5 Rc8-a8 Rb2-a2 Ra8-c8 a5-a4 b3xa4 Ra2-a3+
Kd3-d2 Ra3xf3 Rc8-b8 Rf3-g3 Bc2-d1 Rg3-a3 Rb8-b5 Bf8-d6 Kd2-e2 Ra3-g3
Ke2-e1 Kg7-f6 a4-a5 Kf6-e6 Bd1-c2 Ke6-f6) 0.00/47 17} Re1 {(Re8-e1 Bb1-c2
Re1xf1+ Kh1-g2 Rf1-a1 Rd5xc5 Ra1xa2 Rc5-c8+ Bg7-f8 Kg2-f2 Kg8-g7 Kf2-e3
Ra2-b2 Ke3-d4 Bf8-d6 Rc8-c6 Bd6-f4 Bc2-e4 Rb2xb3 Kd4-c4 Rb3-c3+ Kc4xb4
Rc3xc6 Be4xc6 Bf4-d2+ Kb4-c4 Kg7-g8 Kc4-d3 Bd2-f4 Kd3-d4 Kg8-g7 Kd4-c4
Bf4-c7 Kc4-d5 Bc7-g3 Kd5-d4 Bg3-b8 Kd4-c4 Kg7-f6 Kc4-d5 Bb8-f4 Kd5-e4 a6-a5
Bc6-a4 Bf4-d6 Ke4-d4 Kf6-e6 Ba4-b3+ Ke6-e7) +0.14/41 6} 38. Bc2 {(Bb1-c2
Re1xf1+ Kh1-g2 Rf1-a1 Rd5xc5 Ra1xa2 Rc5-c8+ Bg7-f8 Kg2-f2 Kg8-g7 Kf2-e3
Ra2-b2 Ke3-d3 a6-a5 Rc8-a8 Rb2-a2 Ra8-c8) 0.00/52 17} Rxf1+ {(Re1xf1+
Kh1-g2 Rf1-a1 Rd5xc5 Ra1xa2 Rc5-c8+ Bg7-f8 Kg2-f2 Ra2-b2 Kf2-e3 Kg8-g7
Ke3-d4 Bf8-d6 Rc8-c6 Bd6-f4 Rc6-c5 Bf4-h2 Kd4-d3 Rb2-a2 Kd3-e4 Bh2-g1
Rc5-c6 Ra2-b2 Ke4-d5 Bg1-f2 Bc2-e4 Rb2xb3 Kd5-c4 Rb3-c3+ Kc4xb4 Rc3xc6
Be4xc6 Kg7-f6 Kb4-a5 Kf6-e5 Ka5xa6 Ke5-d4 Ka6-b5 Bf2-g1 Bc6-e8 Kd4-e3
Be8xf7 Ke3xf3 Bf7-e6 Kf3-f4) +0.14/38 7} 39. Kg2 {(Kh1-g2 Rf1-a1 Rd5xc5
Ra1xa2 Rc5-c8+ Bg7-f8 Kg2-f2 Kg8-g7 Kf2-e3 Ra2-b2 Ke3-d3 a6-a5 Rc8-a8
Rb2-a2 Ra8-c8 Ra2-b2) 0.00/52 29} Ra1 {(Rf1-a1 Rd5xc5 Ra1xa2 Rc5-c8+ Bg7-f8
Kg2-f2 Ra2-b2 Kf2-e3 Kg8-g7 Ke3-d4 Bf8-d6 Rc8-c6 Bd6-h2 Bc2-e4 Rb2xb3
Kd4-c4 Rb3-a3 Kc4xb4 Ra3-a1 Be4-d5 Bh2-f4 Kb4-c4 Ra1-a5 Bd5-e4 Ra5-a3
Rc6-b6 Ra3-a4+ Kc4-b3 Ra4-a5 Rb6-b7 Ra5-c5 Kb3-b4 Bf4-d6 Rb7-d7 a6-a5+
Kb4-a4 Bd6-g3 Rd7-d5 Rc5xd5 Be4xd5 Bg3-c7) +0.14/42 12} 40. Rxc5 {(Rd5xc5
Ra1xa2 Rc5-c8+ Bg7-f8 Kg2-f2 Kg8-g7 Kf2-e3 Ra2-b2 Ke3-d3 Bf8-e7 Rc8-e8
Be7-d6 Re8-e2 Rb2-a2 Kd3-c4 Kg7-f6 Bc2-d3 Ra2-a5 Re2-e4 Ra5-c5+ Kc4xb4
Rc5-c2+ Kb4-a5 Rc2-c3 Bd3-c4 Rc3xf3 Ka5xa6 Rf3-g3 b3-b4 Bd6xb4 Ka6-b6
Bb4-d6 Bc4-a6 Kf6-g7 Kb6-b5 Rg3-b3+ Kb5-c6 Bd6-f8 Kc6-d5 Rb3-c3 Re4-c4
Rc3xc4 Kd5xc4 f7-f5 Ba6-c8 f5xg4 Bc8xg4 Bf8-d6 Kc4-d5 Kg7-f6 Kd5-d4 Bd6-e5+
Kd4-c4 Be5-f4 Bg4-d7 Bf4-d6) 0.00/52 12} Rxa2 {(Ra1xa2 Rc5-c8+ Bg7-f8
Kg2-f2 Ra2-b2 Kf2-e3 Kg8-g7 Ke3-d4 Bf8-d6 Rc8-c6 Bd6-e7 Kd4-d5 a6-a5 Rc6-c8
Be7-f6 Rc8-c7 Kg7-f8 Kd5-d6 Bf6-d4 Rc7-c8+ Kf8-g7 Rc8-c7 Bd4-b6 Rc7-c8
Bb6-g1 Kd6-d5 Bg1-h2 Rc8-c6 Bh2-g3 Rc6-c5 Rb2-a2 Kd5-c6 Ra2-a3 Kc6-d5
Bg3-e1 Rc5-c7 a5-a4 Bc2-g6 Ra3xb3 Rc7xf7+ Kg7-g8 Kd5-e6 a4-a3 Rf7-a7 Be1-f2
Ra7-a8+) +0.04/42 16} 41. Rc8+ {(Rc5-c8+ Bg7-f8 Kg2-f2 Kg8-g7 Kf2-e3 Ra2-b2
Ke3-d3 Bf8-e7 Rc8-e8 Be7-d6 Re8-e2 Rb2-a2 Kd3-c4 Kg7-f6 Bc2-d3 Ra2-a5
Re2-e8 Ra5-c5+ Kc4-d4 Rc5-c3 Bd3-e4 Kf6-g7 Re8-a8 Rc3xb3 Ra8xa6 Bd6-e7
Ra6-a7 Kg7-f6 Ra7-b7 Rb3-a3 Rb7-b6+ Kf6-g7 Kd4-d5 Ra3-a7 Rb6-b5 Ra7-d7+
Kd5-c6 Rd7-d6+ Kc6-b7 Be7-f8 Be4-d5 b4-b3 Bd5xb3 Rd6-d4 Bb3-c2 Rd4-b4
Rb5xb4 Bf8xb4 Bc2-f5 Bb4-c3 Kb7-c8 Bc3-d2 Kc8-d7 Bd2-c3 Kd7-d6 Kg7-f6)
0.00/53 32} Bf8 {(Bg7-f8) +0.05/1} 42. Kf2 {(Kg2-f2 Kg8-g7 Kf2-e3 Ra2-b2
Ke3-d3 Bf8-e7 Rc8-e8 Be7-d6 Re8-e2 Rb2-a2 Kd3-c4 Kg7-f6 Bc2-d3 Ra2-a5
Re2-e8 Ra5-c5+ Kc4-d4 Rc5-c3 Bd3-e4 Kf6-g7 Re8-a8 Rc3xb3 Ra8xa6 Bd6-e7
Ra6-a7 Kg7-f6 Ra7-b7 Rb3-a3 Rb7-b6+ Kf6-g7 Kd4-d5 Ra3-a7 Kd5-c6 Be7-f8
Rb6-b5 Kg7-g8 Rb5-b8 Ra7-e7 Be4-d5 Re7-a7) 0.00/55 122} Rb2 {(Ra2-b2)
+0.03/38 12} 43. Ke3 {(Kf2-e3 Kg8-g7 Ke3-d3 Bf8-e7 Rc8-e8 Be7-d6 Re8-a8
Rb2-a2 Ra8-c8 Bd6-g3 Rc8-c6 a6-a5 Kd3-e4 Bg3-f4 Bc2-d3 a5-a4 b3xa4 b4-b3
Rc6-b6 Ra2xa4+ Ke4-d5 Ra4-a5+ Kd5-c4 Ra5-a3 Bd3-b1 Bf4-e5 Rb6xb3 Ra3xb3
Kc4xb3 Kg7-g8 Kb3-c4 Be5-b8 Kc4-d5 Bb8-a7 Bb1-a2 Ba7-g1 Kd5-e4 Bg1-h2
Ke4-d5) 0.00/56 28} Kg7 {(Kg8-g7 Ke3-d4 Bf8-d6 Rc8-c6 Bd6-g3 Kd4-d5 a6-a5
Rc6-c5 Rb2-a2 Bc2-e4 Ra2-a3 Kd5-c4 a5-a4 b3xa4 Ra3xa4) +0.01/39 10} 44. Kd3
{(Ke3-d3 Bf8-e7 Rc8-c6 a6-a5 Rc6-a6 Rb2-a2 Bc2-d1 Be7-f6 Ra6-c6 Ra2-a1
Bd1-c2 Ra1-a2) 0.00/58 20} a5 {(a6-a5 Kd3-d4 Bf8-d6 Kd4-d5 Bd6-f4 Rc8-c5
Rb2-a2 Kd5-c6 Bf4-e3 Rc5-c4 Be3-d2 Kc6-b5 Bd2-c3 Bc2-e4 Ra2-a3 Rc4-c7
Ra3xb3 Be4-d5 Rb3-a3 Rc7xf7+ Kg7-h8 Rf7-f8+ Kh8-h7 Kb5-c4 Ra3-a1 Rf8-f7+
Kh7-h8 Kc4-b5 a5-a4 Rf7-f8+ Kh8-h7) 0.00/38 18} 45. Rc6 {(Rc8-c6 Bf8-e7
Bc2-d1 Be7-d8 Kd3-e3 Rb2-b1 Ke3-d2 Rb1-a1 Rc6-a6 Ra1-a2+ Kd2-e3 Bd8-c7
Ke3-d3 Bc7-f4 Bd1-c2 Bf4-g3 Ra6-c6 Bg3-e1 Rc6-a6) 0.00/53 26} Be7 {(Bf8-e7
Rc6-c7 Be7-d6 Rc7-c6 Bd6-f4 Kd3-d4 Bf4-d2 Rc6-c7 Bd2-c3+ Kd4-d3 Bc3-e1
Kd3-d4 Kg7-f8 Rc7-c6 Be1-c3+ Kd4-d3) +0.03/37 15} 46. Bd1 {(Bc2-d1 Be7-d8
Rc6-c5 Rb2-a2 Kd3-c4 Bd8-e7 Rc5-d5 Kg7-f6 Kc4-b5 Ra2-a3 Rd5-d4 Be7-f8
Rd4-d8 Bf8-e7 Rd8-d5 Kf6-e6 Rd5-d2 Be7-f6 Bd1-c2 Bf6-c3 Rd2-e2+ Ke6-f6
Kb5-c4 Ra3-a2 Bc2-d3 Ra2xe2 Bd3xe2 Kf6-e5 Be2-d3 Bc3-d2 Bd3-f5 Bd2-f4
Kc4-c5 Bf4-d2 Bf5-e4 Ke5-e6 Kc5-c6 f7-f5 Be4xf5+ Ke6-e7 Kc6-d5 Bd2-e1
Bf5-e4 Be1-g3 Kd5-c6 Bg3-e5 Be4-d5 Be5-g3) 0.00/53 91} Bf6 {(Be7-f6 Rc6-b6
Bf6-e5 Bd1-c2 Be5-d4 Rb6-a6 Rb2-a2) +0.05/35 8} 47. Rb6 {(Rc6-b6 Bf6-c3
Bd1-c2 Bc3-e1 Rb6-b5 Rb2-a2 Rb5-e5 Be1-c3 Re5-e2 Kg7-f6 Kd3-c4 Bc3-e5
Bc2-d3 Ra2-a1 Bd3-e4 Be5-c3 Kc4-b5 Ra1-a3 Be4-c2 Ra3-a2 Bc2-d3 Ra2-a3
Kb5-c4 a5-a4 b3xa4 Ra3xa4 Re2-e8 Ra4-a6 Bd3-e4 Ra6-b6 Be4-f5 Bc3-d2 Kc4-c5
Rb6-a6 Re8-d8 Bd2-e1 Rd8-d6+ Ra6xd6 Kc5xd6 Be1-g3+ Kd6-d5 b4-b3 Bf5-b1
Bg3-e5 Bb1-f5) 0.00/51 10} Be5 {(Bf6-e5 Bd1-c2 Be5-d4 Rb6-a6 Rb2-a2 Ra6-c6
Bd4-g1 Rc6-c7 Bg1-b6 Rc7-b7 Bb6-d4 Rb7-b8 Bd4-g1 Rb8-a8 Ra2-a1 Kd3-e2
Ra1-a3 Ra8-a6 Ra3-a2 Ke2-d3 Bg1-e3 Bc2-b1 Ra2-a1 Bb1-c2 Be3-f2 Kd3-e2
Ra1-a2 Ke2-d2 Bf2-e1+ Kd2-d3 Be1-c3 Ra6-c6) +0.04/42 16} 48. Bc2 {(Bd1-c2
Be5-f4 Rb6-b5 Rb2-a2 Rb5-b6) 0.00/50 26} Bd4 {(Be5-d4 Rb6-a6 Rb2-a2 Ra6-a8
Bd4-c3 Ra8-a7 Bc3-e5 Ra7-a6 Be5-g3 Ra6-a7 Bg3-f4 Ra7-a6 Bf4-h2 Ra6-a7
Bh2-d6) +0.04/41 16} 49. Rc6 {(Rb6-c6 Bd4-f6 Bc2-d1 Rb2-a2 Bd1-c2) 0.00/50
13} Bc3 {(Bd4-c3 Rc6-a6 Rb2-a2 Ra6-a8 Kg7-f6 Ra8-a7 Bc3-e1 Ra7-a6+ Kf6-g7
Ra6-a8 Be1-f2 Ra8-c8 Ra2-b2 Rc8-b8 Bf2-g3 Rb8-a8 Rb2-a2 Ra8-a6 Bg3-f4
Ra6-b6 Bf4-e3 Rb6-b8 Be3-d4 Rb8-c8 Bd4-b6 Rc8-c6) +0.04/42 16} 50. Rb6
{(Rc6-b6 Bc3-e1 Rb6-b5 Rb2-a2 Rb5-e5 Be1-c3 Re5-e2 Kg7-f6 Kd3-c4 Bc3-e5
Bc2-d3 Ra2xe2 Bd3xe2 Kf6-e7 Kc4-d5 Be5-c3 Be2-d3 Bc3-e1 Bd3-c4 Be1-c3)
0.00/50 17} Ra2 {(Rb2-a2 Rb6-a6 Bc3-f6 Ra6-b6 Bf6-e5 Rb6-b5) +0.04/40 12}
51. Rc6 {(Rb6-c6 Bc3-f6 Rc6-c7 Kg7-f8 Rc7-c8+ Kf8-e7 Rc8-c7+) 0.00/48 14}
Bf6 {(Bc3-f6 Rc6-c7 Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7
Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6
Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7
Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6
Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7
Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7 Bf6-d8 Rc7-c6 Bd8-f6 Rc6-c7) +0.04/42 20} 52.
Rc7 {(Rc6-c7 Ra2-b2 Rc7-a7 Bf6-d8 Ra7-a8 Bd8-c7 Ra8-a7) 0.00/51 21 User
Adjudication} *[/pgn]

[Chessqueen]

This was a very interesting game, but I wonder what would have happened if Koivisto sacrificed the Queen after move 27. for the Rook instead of repeating

[pgn][Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.06.01"]
[Round "?"]
[White "Stockfish_22051520_x64_avx2"]
[Black "Koivisto 8.0"]
[Result "1/2-1/2"]
[BlackElo "2478"]
[Time "00:18:03"]
[WhiteElo "3640"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - 0 1"]
[Termination "normal"]
[PlyCount "77"]
[WhiteType "program"]
[BlackType "program"]

1. d4 Nf6 2. c4 e6 3. Nc3 Be7 4. Nf3 O-O 5. Bd3 a6 6. O-O d6 7. Re1 Re8 8.
h3 Nbd7 9. Be3 h6 10. Bc2 {(Bd3-c2 Be7-f8 Nf3-h2 Ra8-b8 a2-a4 b7-b6 Nh2-g4
Nf6xg4 h3xg4 Bc8-b7 Qd1-d2 c7-c5 d4-d5 e6xd5 c4xd5 Qd8-h4 f2-f3 g7-g6
Ra1-d1 Re8-e5 Be3-f2 Re5xe1+ Rd1xe1 Qh4-f6 Bc2-d3 Bf8-g7 Nc3-e4 Qf6xb2
Qd2xb2 Bg7xb2 Ne4xd6 Bb7xd5 Bd3xa6 Bd5-e6) -0.60/35 51} Bf8 {(Be7-f8)
+1.46/35 66} 11. Nh2 {(Nf3-h2 d6-d5 c4-c5 b7-b6 b2-b4 Bc8-b7 Be3-f4 Nf6-e4
Nc3xe4 d5xe4 Re1xe4 b6xc5 b4xc5 Bb7xe4 Bc2xe4 Ra8-b8 Be4-c6 e6-e5 d4xe5
Nd7xc5 Bc6xe8 Qd8xe8 Nh2-f3 Nc5-e6 Bf4-e3 Rb8-b4 Nf3-d4 Ne6xd4 Be3xd4
Bf8-e7 Bd4-c3 Rb4-c4 Qd1-f3 Qe8-a4 e5-e6 f7xe6) -0.73/35 27} Rb8 {(Ra8-b8)
+1.06/37 185} 12. a4 {(a2-a4 b7-b6 Nh2-g4 Nf6xg4 h3xg4 c7-c5 g4-g5 h6xg5
Nc3-e4 Bf8-e7 Qd1-h5 Nd7-f6 Ne4xf6+ Be7xf6 Ra1-d1 c5xd4 Be3xd4 Kg8-f8
Re1-e3 Kf8-e7 Bd4-e5 Bf6xe5 Re3xe5 Re8-h8 Qh5-g4 Rh8-h6 Qg4xg5+ Ke7-e8
Qg5xg7 Qd8-h4 f2-f3 Ke8-e7 Qg7-g5+ Qh4xg5 Re5xg5 Rh6-h8 b2-b3 Bc8-d7
Kg1-f2) -0.48/36 23} b6 {(b7-b6 Qd1-d3 g7-g6 Qd3-d2) +1.42/33 40} 13. Ng4
{(Nh2-g4 c7-c5 Qd1-d3 Bc8-b7 a4-a5 b6xa5 d4xc5 Qd8-c7 c5xd6 Bf8xd6 Be3-d4
e6-e5 Bd4-a7 Rb8-d8 Re1-d1 Bd6-b4 Ba7-e3 e5-e4 Ng4xf6+ Nd7xf6 Qd3-e2 Bb4-c5
Bc2-a4 Re8-f8 Ba4-b3 Rd8xd1+ Ra1xd1 Rf8-b8 Be3xc5 Qc7xc5 Qe2-e3 Qc5xe3
f2xe3 Kg8-f8 Rd1-d4 Kf8-e7 c4-c5 Nf6-d7 Bb3xf7 Nd7xc5) -0.55/34 21} Nxg4
{(Nf6xg4 h3xg4) +1.12/34 76} 14. hxg4 {(h3xg4 Bf8-e7 b2-b4 Nd7-f8 Qd1-d2
c7-c5 d4xc5 d6xc5 Qd2xd8 Re8xd8 Be3-f4 Rb8-b7 b4-b5 Be7-f6 b5xa6 Rb7-d7
a6-a7 Rd7xa7 Nc3-b5 Ra7-a6 Ra1-c1 Bc8-b7 Bf4-c7 Rd8-d7 Rc1-d1 g7-g5 Rd1xd7
Nf8xd7 Re1-d1 Bb7-c6 Bc7-g3 Bc6xb5 c4xb5 Ra6-a7 Rd1-d6 Bf6-d4 Rd6-c6 e6-e5
Rc6xh6 Kg8-g7) -0.62/32 23} Be7 {(Bf8-e7 Qd1-d3 Nd7-f8 b2-b4 Be7-h4 Be3-f4
Bc8-b7) +1.20/33 57} 15. b4 {(b2-b4 Be7-g5 Qd1-d3 Nd7-f8 Ra1-b1 Bg5xe3
Re1xe3 Bc8-b7 Rb1-e1 Qd8-g5 Qd3-d1 h6-h5 Re3-g3 h5-h4 Rg3-e3 e6-e5 Nc3-d5
Bb7xd5 c4xd5 a6-a5 d4xe5 Re8xe5 Re3xe5 d6xe5 b4xa5 b6xa5 d5-d6 c7xd6
Qd1xd6) -0.46/32 28} Nf8 {(Nd7-f8 Qd1-d3 Be7-g5) +1.27/35 48} 16. a5
{(a4-a5 b6xa5 b4xa5 Be7-g5 Qd1-d2 Bg5xe3 Re1xe3 Bc8-d7 Ra1-e1 Qd8-h4 Bc2-d3
Qh4-f6 d4-d5 Qf6-g5 Nc3-e4 Qg5-d8 Ne4-c3 c7-c6 d5xe6 Re8xe6 Re3xe6 Nf8xe6
Bd3-f5 Ne6-c5 Qd2xd6 Bd7xf5 Qd6xd8+ Rb8xd8 g4xf5 Kg8-f8 f2-f3 Rd8-e8 Nc3-e4
Re8-e5) -0.72/37 46} bxa5 {(b6xa5 b4xa5 Be7-g5 f2-f4 Bg5-f6 Nc3-e4 Bf6-e7
Qd1-e2 Bc8-d7 g4-g5) +1.64/31 19} 17. bxa5 {(b4xa5 Be7-g5 Qd1-d2 Bg5xe3
Re1xe3 Bc8-d7 Ra1-e1 Qd8-h4 Bc2-d3 Nf8-g6 c4-c5 Qh4xg4 Bd3xg6 f7xg6 Re3-g3
Qg4-h5 Rg3-h3 Qh5-g5 Qd2xg5 h6xg5 c5xd6 c7xd6 Nc3-e4 e6-e5 Ne4xd6 Re8-d8
Rh3-d3 Bd7-b5 Nd6xb5 Rb8xb5 d4-d5 Rd8xd5 Rd3-g3 Kg8-f7 Re1-e3 Rb5xa5 Rg3xg5
Rd5-d1+ Kg1-h2 Kf7-f6 Re3-g3) -0.57/36 22} Bg5 {(Be7-g5) +1.27/34 61} 18.
Qd2 {(Qd1-d2 Bg5xe3 Re1xe3 Bc8-d7 Ra1-e1 Qd8-h4 Bc2-d3 Nf8-g6 Bd3xg6 f7xg6
c4-c5 Qh4xg4 Re3-g3 Qg4-f5 Rg3-f3 Qf5-g5 Qd2xg5 h6xg5 c5xd6 c7xd6 Nc3-e4
Bd7-c6 Rf3-c3 Bc6xe4 Re1xe4 d6-d5 Re4-e3 Rb8-b4 Rc3-c6 Kg8-f7 Re3-f3+
Kf7-e7 Rf3-e3 Ke7-d7 Rc6xa6 Rb4xd4 Re3-a3 Rd4-b4 Ra6-a7+ Kd7-d6 Ra7xg7
Re8-h8) -0.33/35 25} Bxe3 {(Bg5xe3 Qd2xe3 Qd8-h4 f2-f3 h6-h5 g4-g5 e6-e5
Re1-b1 Rb8xb1+ Ra1xb1 Qh4xd4 Qe3xd4 e5xd4 Nc3-d5 c7-c6 Bc2-a4 Bc8-d7 Nd5-b6
Re8-e2 Nb6xd7 Nf8xd7 Ba4xc6 Nd7-c5 Bc6-d5 g7-g6 Kg1-f1 d4-d3 Rb1-b6 Re2-a2
Rb6xd6 Ra2-a1+ Kf1-f2 d3-d2) +1.42/32 21} 19. Rxe3 {(Re1xe3 Bc8-d7 Ra1-e1
c7-c5 g4-g5 h6xg5 d4xc5 d6xc5 Re3-d3 f7-f6 Bc2-a4 Re8-e7 Re1-d1 Qd8xa5
Ba4xd7 Re7xd7 Rd3xd7 Nf8xd7 Qd2xd7 Qa5xc3 Qd7xe6+ Kg8-h7 Qe6-e4+ Kh7-h6
g2-g3 Qc3-e5 Qe4xe5 f6xe5 Rd1-d6+ Kh6-h5 Rd6xa6 Rb8-b4 Ra6-e6 Rb4xc4 Re6xe5
Kh5-g6 Kg1-f1 Kg6-f6 Re5-d5 Rc4-c1+ Kf1-e2 g5-g4 Ke2-e3) -0.38/36 27} Bd7
{(Bc8-d7 Ra1-e1) +1.55/34 51} 20. Rae1 {(Ra1-e1 Qd8-h4 Bc2-d3 Qh4-e7 d4-d5
Qe7-g5 Nc3-e4 Qg5-h4 Bd3-f1 Qh4-d8 Ne4-c3 Qd8-g5 Nc3-e4 Qg5-h4 d5xe6 Re8xe6
c4-c5 Bd7-b5 Bf1xb5 Rb8xb5 c5xd6 Qh4-d8 d6xc7 Qd8xc7 Re1-c1 Re6-c6 Rc1xc6
Qc7xc6 Qd2-c3 Qc6xc3 Re3xc3 Nf8-e6 Ne4-d6 Rb5xa5 Rc3-c8+ Kg8-h7) -0.45/35
21} Qh4 {(Qd8-h4 Bc2-d3 Re8-d8) +1.10/32 17} 21. Bd3 {(Bc2-d3 Qh4-d8 d4-d5
Qd8-g5 Nc3-e4 Qg5-h4 Bd3-f1 Qh4-d8 Ne4-c3 e6xd5 Re3xe8 Bd7xe8 c4xd5 Be8-d7
Nc3-a2 c7-c5 d5xc6/ep Bd7xc6 Bf1xa6 Rb8-a8 Ba6-f1 Qd8xa5 Qd2xa5 Ra8xa5
Na2-b4 Bc6-d7 Re1-d1 Bd7xg4 f2-f3 Bg4-e6 Nb4-c6 Ra5-c5 Rd1xd6 Kg8-h7 Nc6-d4
Be6-c4 Rd6-c6 Rc5xc6) -0.33/34 38} Red8 {(Re8-d8) +1.09/33 52} 22. Ne4
{(Nc3-e4 Rd8-e8 Ne4-c3 Qh4-d8 d4-d5 Qd8-g5 Nc3-e4 Qg5-h4 Bd3-f1 Qh4-d8
Ne4-c3 e6xd5 Re3xe8 Bd7xe8 c4xd5 Be8-d7 Nc3-a2 c7-c5 d5xc6/ep Bd7xc6 Bf1xa6
Rb8-a8 Ba6-f1 Qd8xa5 Qd2xa5 Ra8xa5 Na2-b4 Bc6-d7 f2-f3 d6-d5 Re1-d1 Bd7-e6
Nb4-c6 Ra5-c5 Nc6-d4) -0.39/33 21} Ng6 {(Nf8-g6 Bd3-e2 Ng6-f4 Be2-f1 Bd7-c6
Re3-c3 Bc6xe4 Qd2xf4 Be4-f5 c4-c5 Qh4xg4 Qf4xg4 Bf5xg4 c5xd6 Rd8xd6 Rc3xc7
Rb8-b2 Rc7-a7 Rb2-a2 Bf1xa6 Rd6xd4 Ba6-f1 Rd4-d2 a5-a6 Rd2xf2 Ra7-c7 Rf2-b2
a6-a7 g7-g5 Bf1-c4 Rb2xg2+ Kg1-h1) +1.28/30 22} 23. Rh3 {(Re3-h3 Qh4-e7
g4-g5 e6-e5 Rh3-f3 Ng6-h4 Rf3-g3 h6xg5 Rg3xg5 f7-f6 Rg5-h5 Nh4-f5 Ne4-c3
g7-g6 Rh5-h2 Qe7-g7 d4xe5 d6xe5 f2-f4 Bd7-e6 f4xe5 f6xe5 Nc3-e4 Qg7-e7
Ne4-f2 Rd8-d4 Qd2-e2 Be6-d7 Qe2xe5 Qe7xe5 Re1xe5 Rb8-e8 Re5xe8+ Bd7xe8
Bd3xf5 g6xf5 Rh2-h6 Rd4xc4 Rh6xa6 Rc4-c1+ Kg1-h2 Kg8-g7 Kh2-g3 Rc1-c3+
Kg3-f4) -0.14/37 26} Qxg4 {(Qh4xg4 Qd2-c3 Qg4-f4 Rh3-f3 Qf4-h4 Ne4-d2)
+2.49/30 11} 24. Nf6+ {(Ne4-f6+ g7xf6 Bd3xg6 Qg4-g5 Qd2-c3 f7xg6 Rh3-g3
Qg5-f4 Rg3-f3 Qf4-h4 Rf3-h3) 0.00/48 26} gxf6 {(g7xf6 Qd2xh6 f6-f5 d4-d5
Rd8-e8 d5xe6 Re8xe6 Re1xe6 Bd7xe6 Rh3-g3 Qg4-d1+ Kg1-h2 Qd1-e1 Rg3-e3
Qe1xf2 Re3xe6 Qf2-f4+) +3.78/33 9} 25. Bxg6 {(Bd3xg6 Qg4-g5 Qd2-c3 f7xg6
Rh3-g3 Qg5-f4 Rg3-f3 Qf4-h4 Rf3-h3 Qh4-g4 Rh3-g3 Qg4-h5) 0.00/53 34} Qg5
{(Qg4-g5 Qd2-c3 h6-h5 Bg6xh5 Kg8-f8 Bh5xf7 Kf8xf7 Rh3-h7+ Kf7-g6 Rh7-h3
Qg5-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3
Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3
Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3
Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3
Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3
Qf4-h6) +0.04/31 24} 26. Qc3 {(Qd2-c3 f7xg6 Rh3-g3 Qg5-f4 Rg3-f3 Qf4-g4
Rf3-g3) 0.00/54 26} fxg6 {(f7xg6 Rh3-g3 Qg5-f5 Rg3-f3 Qf5-g4 Rf3-g3 Qg4-h5)
0.00/41 94} 27. Rg3 {(Rh3-g3 Qg5-f4 Rg3-f3 Qf4-h4 Rf3-h3 Qh4-g4 Rh3-g3)
0.00/59 62} Qh5 {(Qg5-h5) +0.02/46 47} 28. Rh3 {(Rg3-h3 Qh5-g5 Rh3-g3
Qg5-f4 Rg3-f3 Qf4-h4 Rf3-h3 Qh4-g4) 0.00/62 121} Qg4 {(Qh5-g4 Rh3-g3 Qg4-f4
Rg3-f3 Qf4-g5 Rf3-g3) +0.06/41 16} 29. Rg3 {(Rh3-g3 Qg4-h5 Rg3-h3 Qh5-g5
Rh3-g3 Qg5-h4) 0.00/67 31} Qh4 {(Qg4-h4 Rg3-h3 Qh4-g4) +0.05/51 39} 30. Rh3
{(Rg3-h3 Qh4-g5 Rh3-g3 Qg5-h5 Rg3-h3) 0.00/62 24} Qf4 {(Qh4-f4 Rh3-f3
Qf4-g4 Rf3-g3) +0.07/43 10} 31. Rf3 {(Rh3-f3 Qf4-h4 Rf3-h3 Qh4-g5 Rh3-g3
Qg5-h5 Rg3-h3 Qh5-f5 Rh3-f3 Qf5-h5) 0.00/67 65} Qh4 {(Qf4-h4 Rf3-h3)
+0.06/40 26} 32. Rh3 {(Rf3-h3 Qh4-g5 Rh3-g3 Qg5-f5 Rg3-f3 Qf5-g5) 0.00/66
31} Qg5 {(Qh4-g5) +0.05/57 80} 33. Rg3 {(Rh3-g3 Qg5-h5 Rg3-h3 Qh5-g5)
0.00/68 32} Qf5 {(Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3
Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3
Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3
Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3
Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3
Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3
Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3
Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3
Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3) +0.05/48 25} 34. Rf3 {(Rg3-f3
Qf5-h5 Rf3-h3 Qh5-g4 Rh3-g3 Qg4-h4) 0.00/67 31} Qh5 {(Qf5-h5 Rf3-h3)
+0.08/49 16} 35. Rh3 {(Rf3-h3 Qh5-g4 Rh3-g3 Qg4-h5) 0.00/62 107} Qf5
{(Qh5-f5) +0.04/49 45} 36. Rf3 {(Rh3-f3 Qf5-g4 Rf3-g3 Qg4-f4 Rg3-f3)
0.00/64 23} Qg4 {(Qf5-g4) -0.04/48 26} 37. Rg3 {(Rf3-g3 Qg4-h5) 0.00/73 22}
Qf4 {(Qg4-f4 Rg3-f3) +0.04/51 15} 38. Rf3 {(Rg3-f3 Qf4-h4) 0.00/71 21} Qh4
{(Qf4-h4) +0.02/52 29} 39. Rh3 {(Rf3-h3) 0.00/92 20 3-fold repetition} *[/pgn]

[Chessqueen]

[quote=Chessqueen post_id=926861 time=1654063233 user_id=10732]
This was a very interesting game, but I wonder what would have happened if Koivisto sacrificed the Queen after move 38 Rf3 Koivisto exchange or sacrifice its Queen for the Rook. for the Rook instead of repeating ?

[pgn][Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.06.01"]
[Round "?"]
[White "Stockfish_22051520_x64_avx2"]
[Black "Koivisto 8.0"]
[Result "1/2-1/2"]
[BlackElo "2478"]
[Time "00:18:03"]
[WhiteElo "3640"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - 0 1"]
[Termination "normal"]
[PlyCount "77"]
[WhiteType "program"]
[BlackType "program"]

1. d4 Nf6 2. c4 e6 3. Nc3 Be7 4. Nf3 O-O 5. Bd3 a6 6. O-O d6 7. Re1 Re8 8.
h3 Nbd7 9. Be3 h6 10. Bc2 {(Bd3-c2 Be7-f8 Nf3-h2 Ra8-b8 a2-a4 b7-b6 Nh2-g4
Nf6xg4 h3xg4 Bc8-b7 Qd1-d2 c7-c5 d4-d5 e6xd5 c4xd5 Qd8-h4 f2-f3 g7-g6
Ra1-d1 Re8-e5 Be3-f2 Re5xe1+ Rd1xe1 Qh4-f6 Bc2-d3 Bf8-g7 Nc3-e4 Qf6xb2
Qd2xb2 Bg7xb2 Ne4xd6 Bb7xd5 Bd3xa6 Bd5-e6) -0.60/35 51} Bf8 {(Be7-f8)
+1.46/35 66} 11. Nh2 {(Nf3-h2 d6-d5 c4-c5 b7-b6 b2-b4 Bc8-b7 Be3-f4 Nf6-e4
Nc3xe4 d5xe4 Re1xe4 b6xc5 b4xc5 Bb7xe4 Bc2xe4 Ra8-b8 Be4-c6 e6-e5 d4xe5
Nd7xc5 Bc6xe8 Qd8xe8 Nh2-f3 Nc5-e6 Bf4-e3 Rb8-b4 Nf3-d4 Ne6xd4 Be3xd4
Bf8-e7 Bd4-c3 Rb4-c4 Qd1-f3 Qe8-a4 e5-e6 f7xe6) -0.73/35 27} Rb8 {(Ra8-b8)
+1.06/37 185} 12. a4 {(a2-a4 b7-b6 Nh2-g4 Nf6xg4 h3xg4 c7-c5 g4-g5 h6xg5
Nc3-e4 Bf8-e7 Qd1-h5 Nd7-f6 Ne4xf6+ Be7xf6 Ra1-d1 c5xd4 Be3xd4 Kg8-f8
Re1-e3 Kf8-e7 Bd4-e5 Bf6xe5 Re3xe5 Re8-h8 Qh5-g4 Rh8-h6 Qg4xg5+ Ke7-e8
Qg5xg7 Qd8-h4 f2-f3 Ke8-e7 Qg7-g5+ Qh4xg5 Re5xg5 Rh6-h8 b2-b3 Bc8-d7
Kg1-f2) -0.48/36 23} b6 {(b7-b6 Qd1-d3 g7-g6 Qd3-d2) +1.42/33 40} 13. Ng4
{(Nh2-g4 c7-c5 Qd1-d3 Bc8-b7 a4-a5 b6xa5 d4xc5 Qd8-c7 c5xd6 Bf8xd6 Be3-d4
e6-e5 Bd4-a7 Rb8-d8 Re1-d1 Bd6-b4 Ba7-e3 e5-e4 Ng4xf6+ Nd7xf6 Qd3-e2 Bb4-c5
Bc2-a4 Re8-f8 Ba4-b3 Rd8xd1+ Ra1xd1 Rf8-b8 Be3xc5 Qc7xc5 Qe2-e3 Qc5xe3
f2xe3 Kg8-f8 Rd1-d4 Kf8-e7 c4-c5 Nf6-d7 Bb3xf7 Nd7xc5) -0.55/34 21} Nxg4
{(Nf6xg4 h3xg4) +1.12/34 76} 14. hxg4 {(h3xg4 Bf8-e7 b2-b4 Nd7-f8 Qd1-d2
c7-c5 d4xc5 d6xc5 Qd2xd8 Re8xd8 Be3-f4 Rb8-b7 b4-b5 Be7-f6 b5xa6 Rb7-d7
a6-a7 Rd7xa7 Nc3-b5 Ra7-a6 Ra1-c1 Bc8-b7 Bf4-c7 Rd8-d7 Rc1-d1 g7-g5 Rd1xd7
Nf8xd7 Re1-d1 Bb7-c6 Bc7-g3 Bc6xb5 c4xb5 Ra6-a7 Rd1-d6 Bf6-d4 Rd6-c6 e6-e5
Rc6xh6 Kg8-g7) -0.62/32 23} Be7 {(Bf8-e7 Qd1-d3 Nd7-f8 b2-b4 Be7-h4 Be3-f4
Bc8-b7) +1.20/33 57} 15. b4 {(b2-b4 Be7-g5 Qd1-d3 Nd7-f8 Ra1-b1 Bg5xe3
Re1xe3 Bc8-b7 Rb1-e1 Qd8-g5 Qd3-d1 h6-h5 Re3-g3 h5-h4 Rg3-e3 e6-e5 Nc3-d5
Bb7xd5 c4xd5 a6-a5 d4xe5 Re8xe5 Re3xe5 d6xe5 b4xa5 b6xa5 d5-d6 c7xd6
Qd1xd6) -0.46/32 28} Nf8 {(Nd7-f8 Qd1-d3 Be7-g5) +1.27/35 48} 16. a5
{(a4-a5 b6xa5 b4xa5 Be7-g5 Qd1-d2 Bg5xe3 Re1xe3 Bc8-d7 Ra1-e1 Qd8-h4 Bc2-d3
Qh4-f6 d4-d5 Qf6-g5 Nc3-e4 Qg5-d8 Ne4-c3 c7-c6 d5xe6 Re8xe6 Re3xe6 Nf8xe6
Bd3-f5 Ne6-c5 Qd2xd6 Bd7xf5 Qd6xd8+ Rb8xd8 g4xf5 Kg8-f8 f2-f3 Rd8-e8 Nc3-e4
Re8-e5) -0.72/37 46} bxa5 {(b6xa5 b4xa5 Be7-g5 f2-f4 Bg5-f6 Nc3-e4 Bf6-e7
Qd1-e2 Bc8-d7 g4-g5) +1.64/31 19} 17. bxa5 {(b4xa5 Be7-g5 Qd1-d2 Bg5xe3
Re1xe3 Bc8-d7 Ra1-e1 Qd8-h4 Bc2-d3 Nf8-g6 c4-c5 Qh4xg4 Bd3xg6 f7xg6 Re3-g3
Qg4-h5 Rg3-h3 Qh5-g5 Qd2xg5 h6xg5 c5xd6 c7xd6 Nc3-e4 e6-e5 Ne4xd6 Re8-d8
Rh3-d3 Bd7-b5 Nd6xb5 Rb8xb5 d4-d5 Rd8xd5 Rd3-g3 Kg8-f7 Re1-e3 Rb5xa5 Rg3xg5
Rd5-d1+ Kg1-h2 Kf7-f6 Re3-g3) -0.57/36 22} Bg5 {(Be7-g5) +1.27/34 61} 18.
Qd2 {(Qd1-d2 Bg5xe3 Re1xe3 Bc8-d7 Ra1-e1 Qd8-h4 Bc2-d3 Nf8-g6 Bd3xg6 f7xg6
c4-c5 Qh4xg4 Re3-g3 Qg4-f5 Rg3-f3 Qf5-g5 Qd2xg5 h6xg5 c5xd6 c7xd6 Nc3-e4
Bd7-c6 Rf3-c3 Bc6xe4 Re1xe4 d6-d5 Re4-e3 Rb8-b4 Rc3-c6 Kg8-f7 Re3-f3+
Kf7-e7 Rf3-e3 Ke7-d7 Rc6xa6 Rb4xd4 Re3-a3 Rd4-b4 Ra6-a7+ Kd7-d6 Ra7xg7
Re8-h8) -0.33/35 25} Bxe3 {(Bg5xe3 Qd2xe3 Qd8-h4 f2-f3 h6-h5 g4-g5 e6-e5
Re1-b1 Rb8xb1+ Ra1xb1 Qh4xd4 Qe3xd4 e5xd4 Nc3-d5 c7-c6 Bc2-a4 Bc8-d7 Nd5-b6
Re8-e2 Nb6xd7 Nf8xd7 Ba4xc6 Nd7-c5 Bc6-d5 g7-g6 Kg1-f1 d4-d3 Rb1-b6 Re2-a2
Rb6xd6 Ra2-a1+ Kf1-f2 d3-d2) +1.42/32 21} 19. Rxe3 {(Re1xe3 Bc8-d7 Ra1-e1
c7-c5 g4-g5 h6xg5 d4xc5 d6xc5 Re3-d3 f7-f6 Bc2-a4 Re8-e7 Re1-d1 Qd8xa5
Ba4xd7 Re7xd7 Rd3xd7 Nf8xd7 Qd2xd7 Qa5xc3 Qd7xe6+ Kg8-h7 Qe6-e4+ Kh7-h6
g2-g3 Qc3-e5 Qe4xe5 f6xe5 Rd1-d6+ Kh6-h5 Rd6xa6 Rb8-b4 Ra6-e6 Rb4xc4 Re6xe5
Kh5-g6 Kg1-f1 Kg6-f6 Re5-d5 Rc4-c1+ Kf1-e2 g5-g4 Ke2-e3) -0.38/36 27} Bd7
{(Bc8-d7 Ra1-e1) +1.55/34 51} 20. Rae1 {(Ra1-e1 Qd8-h4 Bc2-d3 Qh4-e7 d4-d5
Qe7-g5 Nc3-e4 Qg5-h4 Bd3-f1 Qh4-d8 Ne4-c3 Qd8-g5 Nc3-e4 Qg5-h4 d5xe6 Re8xe6
c4-c5 Bd7-b5 Bf1xb5 Rb8xb5 c5xd6 Qh4-d8 d6xc7 Qd8xc7 Re1-c1 Re6-c6 Rc1xc6
Qc7xc6 Qd2-c3 Qc6xc3 Re3xc3 Nf8-e6 Ne4-d6 Rb5xa5 Rc3-c8+ Kg8-h7) -0.45/35
21} Qh4 {(Qd8-h4 Bc2-d3 Re8-d8) +1.10/32 17} 21. Bd3 {(Bc2-d3 Qh4-d8 d4-d5
Qd8-g5 Nc3-e4 Qg5-h4 Bd3-f1 Qh4-d8 Ne4-c3 e6xd5 Re3xe8 Bd7xe8 c4xd5 Be8-d7
Nc3-a2 c7-c5 d5xc6/ep Bd7xc6 Bf1xa6 Rb8-a8 Ba6-f1 Qd8xa5 Qd2xa5 Ra8xa5
Na2-b4 Bc6-d7 Re1-d1 Bd7xg4 f2-f3 Bg4-e6 Nb4-c6 Ra5-c5 Rd1xd6 Kg8-h7 Nc6-d4
Be6-c4 Rd6-c6 Rc5xc6) -0.33/34 38} Red8 {(Re8-d8) +1.09/33 52} 22. Ne4
{(Nc3-e4 Rd8-e8 Ne4-c3 Qh4-d8 d4-d5 Qd8-g5 Nc3-e4 Qg5-h4 Bd3-f1 Qh4-d8
Ne4-c3 e6xd5 Re3xe8 Bd7xe8 c4xd5 Be8-d7 Nc3-a2 c7-c5 d5xc6/ep Bd7xc6 Bf1xa6
Rb8-a8 Ba6-f1 Qd8xa5 Qd2xa5 Ra8xa5 Na2-b4 Bc6-d7 f2-f3 d6-d5 Re1-d1 Bd7-e6
Nb4-c6 Ra5-c5 Nc6-d4) -0.39/33 21} Ng6 {(Nf8-g6 Bd3-e2 Ng6-f4 Be2-f1 Bd7-c6
Re3-c3 Bc6xe4 Qd2xf4 Be4-f5 c4-c5 Qh4xg4 Qf4xg4 Bf5xg4 c5xd6 Rd8xd6 Rc3xc7
Rb8-b2 Rc7-a7 Rb2-a2 Bf1xa6 Rd6xd4 Ba6-f1 Rd4-d2 a5-a6 Rd2xf2 Ra7-c7 Rf2-b2
a6-a7 g7-g5 Bf1-c4 Rb2xg2+ Kg1-h1) +1.28/30 22} 23. Rh3 {(Re3-h3 Qh4-e7
g4-g5 e6-e5 Rh3-f3 Ng6-h4 Rf3-g3 h6xg5 Rg3xg5 f7-f6 Rg5-h5 Nh4-f5 Ne4-c3
g7-g6 Rh5-h2 Qe7-g7 d4xe5 d6xe5 f2-f4 Bd7-e6 f4xe5 f6xe5 Nc3-e4 Qg7-e7
Ne4-f2 Rd8-d4 Qd2-e2 Be6-d7 Qe2xe5 Qe7xe5 Re1xe5 Rb8-e8 Re5xe8+ Bd7xe8
Bd3xf5 g6xf5 Rh2-h6 Rd4xc4 Rh6xa6 Rc4-c1+ Kg1-h2 Kg8-g7 Kh2-g3 Rc1-c3+
Kg3-f4) -0.14/37 26} Qxg4 {(Qh4xg4 Qd2-c3 Qg4-f4 Rh3-f3 Qf4-h4 Ne4-d2)
+2.49/30 11} 24. Nf6+ {(Ne4-f6+ g7xf6 Bd3xg6 Qg4-g5 Qd2-c3 f7xg6 Rh3-g3
Qg5-f4 Rg3-f3 Qf4-h4 Rf3-h3) 0.00/48 26} gxf6 {(g7xf6 Qd2xh6 f6-f5 d4-d5
Rd8-e8 d5xe6 Re8xe6 Re1xe6 Bd7xe6 Rh3-g3 Qg4-d1+ Kg1-h2 Qd1-e1 Rg3-e3
Qe1xf2 Re3xe6 Qf2-f4+) +3.78/33 9} 25. Bxg6 {(Bd3xg6 Qg4-g5 Qd2-c3 f7xg6
Rh3-g3 Qg5-f4 Rg3-f3 Qf4-h4 Rf3-h3 Qh4-g4 Rh3-g3 Qg4-h5) 0.00/53 34} Qg5
{(Qg4-g5 Qd2-c3 h6-h5 Bg6xh5 Kg8-f8 Bh5xf7 Kf8xf7 Rh3-h7+ Kf7-g6 Rh7-h3
Qg5-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3
Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3
Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3
Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3
Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3 Qf4-h6 Rf3-h3 Qh6-f4 Rh3-f3
Qf4-h6) +0.04/31 24} 26. Qc3 {(Qd2-c3 f7xg6 Rh3-g3 Qg5-f4 Rg3-f3 Qf4-g4
Rf3-g3) 0.00/54 26} fxg6 {(f7xg6 Rh3-g3 Qg5-f5 Rg3-f3 Qf5-g4 Rf3-g3 Qg4-h5)
0.00/41 94} 27. Rg3 {(Rh3-g3 Qg5-f4 Rg3-f3 Qf4-h4 Rf3-h3 Qh4-g4 Rh3-g3)
0.00/59 62} Qh5 {(Qg5-h5) +0.02/46 47} 28. Rh3 {(Rg3-h3 Qh5-g5 Rh3-g3
Qg5-f4 Rg3-f3 Qf4-h4 Rf3-h3 Qh4-g4) 0.00/62 121} Qg4 {(Qh5-g4 Rh3-g3 Qg4-f4
Rg3-f3 Qf4-g5 Rf3-g3) +0.06/41 16} 29. Rg3 {(Rh3-g3 Qg4-h5 Rg3-h3 Qh5-g5
Rh3-g3 Qg5-h4) 0.00/67 31} Qh4 {(Qg4-h4 Rg3-h3 Qh4-g4) +0.05/51 39} 30. Rh3
{(Rg3-h3 Qh4-g5 Rh3-g3 Qg5-h5 Rg3-h3) 0.00/62 24} Qf4 {(Qh4-f4 Rh3-f3
Qf4-g4 Rf3-g3) +0.07/43 10} 31. Rf3 {(Rh3-f3 Qf4-h4 Rf3-h3 Qh4-g5 Rh3-g3
Qg5-h5 Rg3-h3 Qh5-f5 Rh3-f3 Qf5-h5) 0.00/67 65} Qh4 {(Qf4-h4 Rf3-h3)
+0.06/40 26} 32. Rh3 {(Rf3-h3 Qh4-g5 Rh3-g3 Qg5-f5 Rg3-f3 Qf5-g5) 0.00/66
31} Qg5 {(Qh4-g5) +0.05/57 80} 33. Rg3 {(Rh3-g3 Qg5-h5 Rg3-h3 Qh5-g5)
0.00/68 32} Qf5 {(Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3
Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3
Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3
Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3
Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3
Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3
Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3
Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3
Qf5-g5 Rf3-g3 Qg5-f5 Rg3-f3 Qf5-g5 Rf3-g3) +0.05/48 25} 34. Rf3 {(Rg3-f3
Qf5-h5 Rf3-h3 Qh5-g4 Rh3-g3 Qg4-h4) 0.00/67 31} Qh5 {(Qf5-h5 Rf3-h3)
+0.08/49 16} 35. Rh3 {(Rf3-h3 Qh5-g4 Rh3-g3 Qg4-h5) 0.00/62 107} Qf5
{(Qh5-f5) +0.04/49 45} 36. Rf3 {(Rh3-f3 Qf5-g4 Rf3-g3 Qg4-f4 Rg3-f3)
0.00/64 23} Qg4 {(Qf5-g4) -0.04/48 26} 37. Rg3 {(Rf3-g3 Qg4-h5) 0.00/73 22}
Qf4 {(Qg4-f4 Rg3-f3) +0.04/51 15} 38. Rf3[/pgn]

[Uri Blass]

I wondered how many draws you get with no opening book at CCRL time control and I got 1-0 and 4 draws for stockfish15 against Koivisto 8.0

Koivisto was white 3 times in these games.

For comparison I see +16 =34 -0 for stockfish at CCRL time control
Of course
I still do not know if you get more draws from the opening position relative to CCRL conditions because I did not play enough games because the expected number of wins for stockfish in CCRL conditions after 5 games is between 1 and 2 and I think it may be interesting to have a rating list only from the opening position only for 4 cores(so engines are not deterministic and do not play the same game again and again).

[Chessqueen]

[quote=Chessqueen post_id=926862 time=1654064562 user_id=10732]
[quote=Chessqueen post_id=926861 time=1654063233 user_id=10732]
This was a very interesting game, but I wonder what would have happened if Koivisto sacrificed the Queen after move 38 Rf3 Koivisto exchange or sacrifice its Queen for the Rook. for the Rook instead of repeating ?

It would only worked if the White Queen was in a1, and it would still ended in a draw, but as it is the White Queen located in c3 it does not work because after Queen x Rook the White Queen will take the Black Queen instead of the pawn.
[fen]1r1r2k1/2pb4/p2ppppp/P7/2PP1q2/2Q2R2/5PP1/4R1K1 b - - 23 38 [/fen]

[pgn][Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.06.01"]
[Round "?"]
[White "Stockfish_22050407_x64_avx2"]
[Black "Stockfish_22050407_x64_avx2"]
[Result "1/2-1/2"]
[BlackElo "3640"]
[Time "02:28:18"]
[WhiteElo "3640"]
[TimeControl "60+0"]
[SetUp "1"]
[FEN "1r1r2k1/2pb4/p2ppppp/P7/2PP4/5q2/5PP1/Q3R1K1 w - - 0 1"]
[Termination "normal"]
[PlyCount "107"]
[WhiteType "program"]
[BlackType "program"]

1. gxf3 Kg7 2. Rc1 h5 3. Qa3 Rb7 4. Qd3 Rdb8 5. Kg2 Rb3 6. Rc3 Rb1 7. c5
R8b5 8. Qe4 c6 9. f4 d5 10. Qe3 Rxa5 11. f5 Raa1 12. Qf4 e5 13. dxe5 Bxf5
14. exf6+ Kxf6 15. Qd6+ Kg5 16. Rg3+ Kh6 17. Qf8+ Kh7 18. Re3 Be4+ 19. f3
g5 20. Qe7+ Kg6 21. Qd6+ Kg7 22. Qe7+ Kh6 23. Qf6+ Kh7 24. Qf7+ Kh6 25.
Qf6+ Kh7 26. Qe7+ Kg6 27. Qe6+ Kh7 28. Rxe4 Rg1+ 29. Kf2 Rgf1+ 30. Ke3
Rae1+ 31. Kd4 dxe4 32. Qe7+ Kg6 33. Qe6+ Kh7 34. Qd7+ Kg8 35. Qc8+ Kh7 36.
Qf5+ Kh6 37. Qf6+ Kh7 38. Qf7+ Kh6 39. Qf8+ Kh7 40. Qf7+ Kh6 41. Qf8+ Kg6
42. Qe8+ Kg7 43. Qe5+ Kg6 44. Qd6+ Kg7 45. Qd7+ Kg8 46. Qc8+ Kg7 47. Qb7+
Kg8 48. Qb8+ Kf7 49. Qb7+ Kg8 50. Qb8+ Kf7 51. Qc7+ Kg8 52. Qd8+ Kf7 53.
Qc7+ Kg8 54. Qc8+ {3-fold repetition} 1/2-1/2[/pgn]

[Chessqueen]

I wanted to find out if an engine of the caliber of Berserk rated 3470 by CCRL can win against Stockfish with e2 pawn odds. Next game with d2 pawn odds. WOW This is a very long game

[pgn][Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.06.01"]
[Round "1"]
[White "Stockfish_22050407_x64_avx2"]
[Black "Berserk-8.5.1-x64-avx2"]
[Result "1/2-1/2"]
[BlackElo "3470"]
[Time "07:03:23"]
[WhiteElo "3640"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - 0 1"]
[Termination "normal"]
[PlyCount "463"]
[WhiteType "program"]
[BlackType "program"]


1. d4 g6 2. Be2 Bg7 3. c4 Nf6 4. Nf3 d5 5. O-O O-O 6. Nc3 dxc4 7. Bxc4 Bg4
8. h3 Bxf3 9. Qxf3 c6 10. Rd1 e6 11. b4 Nd5 12. b5 Nxc3 13. Qxc3 a6 14. a4
axb5 15. axb5 Nd7 16. Be2 Nf6 17. bxc6 Nd5 18. cxb7 Nxc3 19. bxa8=Q Qxa8
20. Rxa8 Rxa8 21. Re1 Bxd4 22. Bc4 Ra4 23. Bb3 Rb4 24. Bc2 h5 25. g3 Na2
26. Ba3 Rc4 27. Re2 Nc3 28. Rd2 h4 29. g4 Rc7 30. Bd3 Ra7 31. Bb2 Bg7 32.
Bxc3 Bxc3 33. Rc2 Ra3 34. Kg2 Be5 35. Bb5 Kg7 36. Re2 Bf4 37. Rb2 g5 38.
Bc6 Ra1 39. Re2 Rc1 40. Bf3 Kf6 41. Rb2 Rc3 42. Be4 Ra3 43. Bf3 Ra1 44. Bc6
Rd1 45. Bf3 Rd4 46. Ra2 Rb4 47. Re2 Rb1 48. Ra2 Rb8 49. Re2 Rc8 50. Ra2 Rc3
51. Bd1 Bd6 52. Rd2 Bf4 53. Rc2 Ra3 54. Bf3 Ra1 55. Be4 Ra3 56. Rb2 Ra5 57.
Bf3 Ra1 58. Be4 Rc1 59. Rc2 Ra1 60. Rb2 Kg7 61. Rb3 Ra5 62. Bd3 Ra1 63. Bf1
Be5 64. Re3 Bf4 65. Re4 Ra2 66. Re2 Ra3 67. Re1 Rc3 68. Bb5 Ra3 69. Re2 Kf6
70. Bc6 Ke7 71. Be4 Kf6 72. Bb1 Ra1 73. Bd3 Be5 74. Bb5 Ra3 75. Rc2 Kg7 76.
Bf1 Bf4 77. Bb5 Ra1 78. Bc4 Rb1 79. Ba6 Rb3 80. Bc4 Rb4 81. Ba6 Kf6 82. Bf1
Ke7 83. Bc4 Be5 84. Bf1 f6 85. Rc4 Rb2 86. Re4 Bf4 87. Re2 Bd2 88. Re4 Bf4
89. Re2 Bd2 90. Re4 Rb1 91. Bc4 Rb6 92. Re2 Bf4 93. Ra2 Rb7 94. Ra6 Bd6 95.
Ra2 Rc7 96. Bb5 Rb7 97. Bc4 Rc7 98. Bb5 Rc5 99. Ra7+ Bc7 100. Ba4 Rc1 101.
Bb5 Rc5 102. Ba4 f5 103. gxf5 exf5 104. Ra6 Bd6 105. Ra7+ Kf6 106. Bd7 Rd5
107. Bc8 Rc5 108. Bd7 Rd5 109. Bc8 Bb4 110. Ra6+ Ke7 111. Rg6 Rc5 112. Re6+
Kf7 113. Bd7 Rc7 114. Rb6 Rxd7 115. Rxb4 Rd5 116. Rb6 Rd4 117. Ra6 Rc4 118.
Ra3 Kg7 119. Kf3 Kf6 120. Ra6+ Kg7 121. Ra5 Kg6 122. Kg2 Re4 123. Ra6+ Kg7
124. Ra5 Kg6 125. Ra6+ Kf7 126. Ra5 Kf6 127. Ra6+ Re6 128. Ra8 g4 129. Rg8
gxh3+ 130. Kxh3 Ke5 131. Rh8 Kf4 132. Kg2 Rg6+ 133. Kh3 Rg1 134. Kh2 Rg4
135. Ra8 Kf3 136. Ra5 Kf4 137. Ra3 Rg8 138. Ra2 Rc8 139. Ra4+ Kg5 140. f3
Rc1 141. Ra2 Kf4 142. Kg2 Kg5 143. Kh3 Rg1 144. Kh2 Re1 145. Kg2 Re8 146.
Kh3 Kf4 147. Ra4+ Kxf3 148. Ra1 Kf4 149. Ra7 Re1 150. Ra8 Rc1 151. Rb8 Rg1
152. Ra8 Rh1+ 153. Kg2 Re1 154. Kh3 Kg5 155. Rg8+ Kh5 156. Rh8+ Kg5 157.
Rg8+ Kh5 158. Rh8+ Kg6 159. Rxh4 Re8 160. Kg2 Rb8 161. Rh1 Kg5 162. Ra1 Kg4
163. Kg1 Rb2 164. Ra5 Rb1+ 165. Kh2 Rb6 166. Ra4+ f4 167. Ra3 Rh6+ 168. Kg1
Rd6 169. Ra8 Kg3 170. Rg8+ Kf3 171. Rb8 Rd3 172. Kh2 Re3 173. Rf8 Re6 174.
Rf5 Re2+ 175. Kg1 Rg2+ 176. Kf1 Rd2 177. Kg1 Rg2+ 178. Kf1 Rd2 179. Kg1 Kg4
180. Rf7 Kg3 181. Rg7+ Kf3 182. Rf7 Rg2+ 183. Kf1 Rd2 184. Kg1 Rd1+ 185.
Kh2 Rd5 186. Ra7 Rh5+ 187. Kg1 Rc5 188. Ra3+ Kg4 189. Ra2 Rc1+ 190. Kh2 Kf3
191. Ra8 Rc6 192. Ra3+ Kg4 193. Kg2 Rc2+ 194. Kf1 Rc1+ 195. Kf2 Rc5 196.
Ra2 Rc3 197. Kg2 Rc1 198. Kh2 Re1 199. Rb2 Kf3 200. Rb5 Re2+ 201. Kg1 Re3
202. Kf1 Ra3 203. Kg1 Ra1+ 204. Kh2 Kf2 205. Rb2+ Ke3 206. Rb3+ Kf2 207.
Kh3 f3 208. Kh2 Rd1 209. Kh3 Rd7 210. Rb2+ Ke3 211. Rb3+ Rd3 212. Rb1 Kf2
213. Ra1 Rd8 214. Ra2+ Kg1 215. Ra1+ Kf2 216. Ra2+ Ke3 217. Kg3 Rg8+ 218.
Kh2 Kd4 219. Ra4+ Ke3 220. Ra3+ Kf4 221. Ra4+ Ke3 222. Ra1 Rg7 223. Ra3+
Ke2 224. Ra2+ Kf1 225. Ra1+ Ke2 226. Ra2+ Kd3 227. Ra3+ Ke4 228. Ra4+ Kf5
229. Rb4 f2 230. Rb1 Rg1 231. Rxg1 fxg1=R 232. Kxg1 {Insufficient material}
*[/pgn]

[Chessqueen]

I wanted to find out if an engine of the caliber of Berserk rated 3470 by CCRL can win against Stockfish with d2 pawn odds.

[pgn][Event "Computer chess game"]
[Site "DESKTOP-OFQ3C0P"]
[Date "2022.06.01"]
[Round "2"]
[White "Dragon-2.6.1-64bit-avx2 [026]"]
[Black "Berserk-8.5.1-x64-avx2"]
[Result "1/2-1/2"]
[BlackElo "3470"]
[Time "10:21:14"]
[WhiteElo "3600"]
[TimeControl "900+10"]
[SetUp "1"]
[FEN "rnbqkbnr/pppppppp/8/8/8/8/PPPP1PPP/RNBQKBNR w KQkq - 1 1"]
[Termination "adjudication"]
[PlyCount "207"]
[WhiteType "program"]
[BlackType "program"]

1. d4 Nf6 2. Nf3 g6 3. Be2 Bg7 4. O-O O-O 5. Re1 d5 6. Be3 Qd6 7. h3 b6 8.
c4 Bb7 9. Nbd2 Qd8 10. Rc1 dxc4 11. Nxc4 Nc6 12. Bf4 Nd5 13. Bg3 Bh6 14.
Nce5 Nxe5 15. dxe5 Bxc1 16. Qxc1 Kg7 17. Bc4 Qe8 18. Re4 c5 19. Rh4 h5 20.
Rxh5 Rh8 21. Rxh8 Qxh8 22. Qd2 Qg8 23. Bxd5 Rd8 24. Qg5 Bxd5 25. Qxe7 Bxf3
26. Qf6+ Kh7 27. Qxf3 Re8 28. Qb7 g5 29. Qxa7 Qg6 30. Qd7 Qe6 31. Qd1 g4
32. h4 Re7 33. Qc2+ Kg7 34. a4 Rc7 35. Kh2 Ra7 36. Qe4 Rd7 37. Qf4 Rd4 38.
Qg5+ Qg6 39. Qc1 Rxa4 40. e6 Re4 41. exf7 Kxf7 42. Qc3 Rd4 43. Qa3 Qe6 44.
Qa7+ Kg6 45. Qc7 Rd5 46. b3 Rh5 47. Qb8 Rf5 48. Qc7 b5 49. Qd8 Kh7 50. Qd1
Rd5 51. Qf1 Qe8 52. Qb1+ Kg8 53. Qa1 Qc6 54. Qa7 c4 55. bxc4 bxc4 56. Qb8+
Kg7 57. Qa7+ Kg6 58. Qe3 Rf5 59. Qd4 Kf7 60. Qa7+ Ke6 61. Qb8 Kd5 62. Qb1
Qc8 63. Qb5+ Kd4 64. Qb4 Kd3 65. Qb1+ Kd4 66. Qb4 Qc6 67. Bb8 Kd5 68. Qd2+
Ke6 69. Qh6+ Rf6 70. Qe3+ Kf7 71. Qa7+ Ke8 72. Bg3 Re6 73. Qb8+ Ke7 74. h5
Kf7 75. Qf4+ Rf6 76. Qe5 Qd7 77. Qc5 Qc6 78. Qa7+ Kf8 79. Be5 Rf5 80. Qg7+
Ke8 81. Qg8+ Ke7 82. Qg7+ Kd8 83. Kg3 Qc5 84. Bf6+ Kc8 85. Qg8+ Kb7 86.
Kxg4 Rxf2 87. Qf7+ Ka6 88. Qe6+ Kb5 89. g3 Rxf6 90. Qxf6 c3 91. Qf1+ Kc6
92. h6 c2 93. h7 Qd4+ 94. Qf4 Qg7+ 95. Kf3 Qxh7 96. Qc4+ Kd6 97. Qd4+ Kc6
98. Qa4+ Kb7 99. Qb5+ Ka7 100. Qc5+ Ka6 101. Ke2 Qh2+ 102. Kd3 c1=Q 103.
Qxc1 Qxg3+ 104. Ke4 {User Adjudication} 1/2-1/2[/pgn]

[lkaufman]

I decided to do a serious test of this question (with White's goal being to draw, i.e. Armageddon scoring). I ran very long matches of Stockfish 15 against itself at 2' + 1" on four threads, no book, just relying on MP search variety, which seemed to be adequate. The bottom line is that removing e2 is still heavily in Black's favor with Armageddon scoring (one White win, 228 Black wins, 151 draws, so 228 to 152 for Black with Armageddon scoring). However removing d2 proved to be almost perfectly balanced (no White wins, 242 Black wins, 236 draws, so 242 to 236 with Armageddon scoring, not statistically different from a tied result). I think this makes some sense, since removing the d2 pawn gives White a great half-open file for the queen, whereas removing e2 doesn't help so much because White will almost always develop his king's knight early which block's the queen's diagonal. Removing d2 just gives much more compensation in the opening. So based on this, it would seem that an almost perfectly fair way to play chess with no draws is to start with d2 removed with White winning draws!

we know that in theory only one of the results(draw or win for black) can be the correct result if the sides play perfect chess so I guess we can get a better estimate for the correct result by using games at slower time control.

Maybe if Stockfish15 play against itself at 200'+100" we are going to get something significant for one color with Armageddon scoring and maybe if we build the correct opening book based on testing we are also going to get something significant at 2'+1''

It is possible to use learning even in match at 2'+1'' when white is going to repeat lines that do not lose and black repeat lines that win to see what is going to happen.

Well, time limit made a huge difference; at 10' + 5", 4 threads, Stockfish 15 vs itself, with d2 removed White won zero, lost 106, and drew only 44. So not at all balanced even with White winning draws. So this is unsatisfactory for Armageddon after all. It seems that an extra pawn in the opening position is always a won game, except if White removes an edge pawn, when it almost certainly is not won for Black.