Insane Queen-Sac in ccc22 Bullet-Semis

[Eelco de Groot]

16...c5 17.dxc5 f5 18.Bg5 Nxc5 19.Bc4

[d]3r1rk1/ppq1b1pp/4p3/2nn1pN1/2B4P/P4Q2/1PPB1PP1/2KR3R b - -


3r1rk1/ppq1b1pp/4p3/2nn1pN1/2B4P/P4Q2/1PPB1PP1/2KR3R b - -

Engine: Sun 14 (512 MB)
gemaakt door EN and Stockfish developers (see AUTHOR

43 61:39 +1.24 19...Lxg5 20.Lxg5 Pe4 21.Db3 Pxf2
22.Lxd8 Txd8 23.Lxd5 Pxd1 24.Txd1 exd5
25.Txd5 Txd5 26.Dxd5+ Df7 27.Dd8+ Df8
28.Dd7 b6 29.Dxa7 De8 30.Kb1 De1+
31.Ka2 De6+ 32.b3 Dc6 (1.824.601.930) 493

43 61:39 +1.36 19...Pe4 20.Lxd5 Txd5 21.Pxe4 fxe4
22.Dxe4 Te5 23.Dg4 Txf2 24.Thf1 Txf1
25.Txf1 Tf5 26.Txf5 exf5 27.Dxf5 Lxh4
28.De6+ Kf8 29.De4 Lf6 30.Dxh7 De5
31.c3 a5 32.Dh3 b5 (1.824.601.930) [d]5k2/6p1/5b2/pp2q3/8/P1P4Q/1P1B2P1/2K5 w - - {+/-} 493

[d]5k2/6p1/5b2/pp2q3/8/P1P4Q/1P1B2P1/2K5 w - -

Crystal 8: 45/121 166:04 +1.58 1.Dc8+ Kf7 2.a4 bxa4 3.Dd7+ Le7 4.Dxa4 Dd5 5.Df4+ Lf6 6.g4 g5 7.Da4 De6 8.b3 Kg6 9.Dc4 De5 10.Kb2 De8 11.Kb1 De5 12.Kc1 Kh7 13.Kb2 Kg6 14.Dd3+ (10.266.709.639) 1030

43 61:39 +1.53 19...Dc6 20.La2 Tc8 21.Kb1 Lf6
22.Lb4 Pe4 23.Lb3 Lxg5 24.Lxf8 Pd2+
25.Txd2 Lxd2 26.Td1 Lh6 27.Lb4 Pxb4
28.axb4 Dxf3 29.Lxe6+ Kf8 30.gxf3 Te8
31.Lxf5 g6 32.Le4 b6 (1.824.601.930) 493

42 61:39 +2.09 19...Kh8 20.Lxd5 exd5 21.Lb4 Tc8
22.Txd5 Dc6 23.Txc5 Dxf3 24.gxf3 Lxc5
25.Lxc5 Txc5 26.Pe6 Tfc8 27.Pxc5 Txc5
28.Td1 h5 29.Td4 Tc6 30.c4 b5 31.b3 bxc4
32.bxc4 Kg8 (1.824.601.930) 493

If 19...Bxg5 20. hxg5 {looks slightly more attacking than 20. Bxg5 perhaps?}


[d]3r1rk1/ppq3pp/4p3/2nn1pP1/2B5/P4Q2/1PPB1PP1/2KR3R b - -

Engine: Sun 14 (512 MB)
gemaakt door EN and Stockfish developers (see AUTHOR

30 5:01 +1.24 20...Pe4 21.Lb3 a5 22.Dh3 h6 23.Le3 Pxg5
24.Lxg5 hxg5 25.g3 Dc6 26.f4 a4
27.Dh7+ Kf7 28.Dh5+ Kf6 29.Dxg5+ Kf7
30.Dh5+ Kf6 31.Lxd5 Txd5 32.Txd5 Dxd5
33.Td1 Dc6 (129.692.922) 430

30 5:01 +1.50 20...Tf7 21.Kb1 Pe4 22.Lb3 Tfd7
23.Lc1 g6 24.Ka1 Dc5 25.Thf1 Dc6
26.g4 Pc5 27.La2 fxg4 28.Dxg4 b5
29.c4 bxc4 30.Dxc4 a5 31.Td2 a4
32.Tc2 Tc7 33.Dg4 Db6 (129.692.922) 430

30 5:01 +1.51 20...Td7 21.Kb1 Pe4 22.Lb3 Tfd8
23.Lc1 g6 24.Ka1 Pc5 25.La2 a5
26.De2 Dc6 27.Td4 b5 28.c4 bxc4
29.Txc4 Db5 30.Te1 Te7 31.Tc2 Pb3+
32.Lxb3 Dxb3 33.Tc5 e5 (129.692.922) 430

30 5:01 +1.79 20...b5 21.Lxb5 Pe4 22.Ld3 De5
23.Lxe4 Tb8 24.Lb4 Pxb4 25.axb4 Dxe4
26.Dh3 f4 27.Tde1 Df5 28.c3 Tb6
29.Td1 Tb5 30.The1 Dg6 31.Dxe6+ Dxe6
32.Txe6 Txg5 33.Tg1 h5 (129.692.922) 430

16...c5 17.dxc5 f5 18.Bg5 Nxc5 19.Bc4 Bxg5 20.hxg5 Ne4 21.Bb3 g6


[d]3r1rk1/ppq4p/4p1p1/3n1pP1/4n3/PB3Q2/1PPB1PP1/2KR3R w - - (Multi PV = 4)

Engine: Sun 14 (512 MB)
gemaakt door EN and Stockfish developers (see AUTHORS

42 71:05 +1.38 22.Kb1 b5 23.De2 Db6 24.f3 Df2
25.De1 Pxd2+ 26.Txd2 Dxe1+ 27.Txe1 Pc7
28.Ted1 Txd2 29.Txd2 Tf7 30.Td8+ Kg7
31.Tb8 a6 32.Tb7 Kf8 33.c4 Ke8 34.a4 bxc4
35.Lxc4 (1.778.562.793) 416

41 71:05 +1.11 22.Le3 De7 23.Lxd5 Txd5 24.Txd5 exd5
25.Td1 Td8 26.Df4 a6 27.Kb1 d4
28.Txd4 Txd4 29.Lxd4 Pxg5 30.Db8+ Kf7
31.Dh8 Ke6 32.b3 Pe4 33.f3 Pd6
34.Lc5 Df7 35.Le3 (1.778.562.793) 416

41 71:05 +1.06 22.The1 a5 23.g4 Pxd2 24.Txd2 Pf4
25.Txd8 Txd8 26.Kb1 a4 27.Lxa4 Da5
28.b4 Dxa4 29.Dxf4 Dxa3 30.Dc4 Ta8
31.Dxe6+ Kf8 32.Dd6+ Kg8 33.Dd5+ Kf8
34.Dd4 Da2+ 35.Kc1 (1.778.562.793) 416

41 71:05 +0.65 22.De2 Pf4 23.Lxf4 Dxf4+ 24.Kb1 Dxg5
25.Lxe6+ Kg7 26.g4 Txd1+ 27.Txd1 Te8
28.gxf5 gxf5 29.f3 Txe6 30.fxe4 fxe4
31.Dc4 De5 32.Dc8 Te8 33.Dxb7+ Kh8
34.Td7 Dh2 35.Dxa7 (1.778.562.793) 416

[Eelco de Groot]

16...c5 17.dxc5 f5 18.Ng5 Nxc5 19.Bc4 Bxg5 20.hxg5 Ne4 21.Bb3 g6 22.Kb1 b5 23.Qe2 Qb6 24.f3

This is probably a draw but in a correspondence game even, maybe worth playing a bit further? Not such a bad score for White, it seems to drop later to about 1.20 or below when Black manages to swap the queens.

[d]3r1rk1/p6p/1q2p1p1/1p1n1pP1/4n3/PB3P2/1PPBQ1P1/1K1R3R b - -

Engine: Sun 14 (512 MB)
gemaakt door EN and Stockfish developers (see AUTHORS

36 9:24 +1.51 24...Df2 25.De1 Pxd2+ 26.Txd2 Dxe1+
27.Txe1 Pc7 28.Ted1 Txd2 29.Txd2 Tf7
30.Td8+ Kg7 31.Tb8 a6 32.Tb7 Kf8
33.c4 Ke8 34.a4 bxc4 35.Lxc4 Td7
36.Ta7 Kd8 37.Lxa6 Td2 (262.869.842) 465

35 9:24 +1.74 24...Pg3 25.De5 Pxh1 26.Lb4 a5
27.Lxd5 Txd5 28.Txd5 axb4 29.Txb5 Da6
30.Txb4 f4 31.a4 Pg3 32.a5 Pf5 33.b3 Ta8
34.Tb6 Dc8 35.a6 Pe3 36.c4 Dd8
37.Td6 Dc8 (262.869.842) 465

35 9:24 +1.83 24...Pxd2+ 25.Txd2 De3 26.Lxd5 Dxe2
27.Txe2 Txd5 28.Txe6 Tf7 29.g3 Td2
30.Tc6 Tg2 31.Tc8+ Kg7 32.Th3 Te2
33.f4 Td7 34.b4 Te3 35.Kb2 Tb7
36.Ka2 Tf7 37.c3 Tb7 (262.869.842) 465

35 9:24 +3.93 24...Pc5 25.Lxd5 Txd5 26.Lc3 Tfd8
27.Txd5 Txd5 28.Td1 Pa4 29.Txd5 Pxc3+
30.bxc3 exd5 31.De8+ Kg7 32.De5+ Kf7
33.Dxd5+ Ke7 34.De5+ Kf7 35.Dh8 Dg1+
36.Kb2 Dh2 37.f4 a5 (262.869.842) 465

16...c5 17.dxc5 f5 18.Ng5 Nxc5 19.Bc4 Bxg5 20.hxg5 Ne4 21.Bb3 g6 22.Kb1 b5 23.Qe2 Qb6 24.f3 Qf2 25.Qe1

[d]3r1rk1/p6p/4p1p1/1p1n1pP1/4n3/PB3P2/1PPB1qP1/1K1RQ2R b - -


3r1rk1/p6p/4p1p1/1p1n1pP1/4n3/PB3P2/1PPB1qP1/1K1RQ2R b - -

Engine: Sun 14 (512 MB)
gemaakt door EN and Stockfish developers (see AUTHOR

39 26:58 +1.07 25...Dxe1 26.Thxe1 Pxd2+ 27.Txd2 Pc7
28.Ted1 Txd2 29.Txd2 Tf7 30.Td8+ Kg7
31.Tb8 a6 32.Tb7 Kf8 33.c4 Ke8 34.a4 bxc4
35.Lxc4 Td7 36.Ta7 Kd8 37.Lxa6 Td2
38.Lb7 e5 (851.210.719) 526

39 26:58 +1.18 25...Pxd2+ 26.Txd2 Dxe1+ 27.Txe1 Pc7
28.Ted1 Txd2 29.Txd2 Tf7 30.Td8+ Kg7
31.Tb8 a6 32.Tb7 Kf8 33.c4 Ke8 34.a4 bxc4
35.Lxc4 Td7 36.Ta7 Kd8 37.Lxa6 Td2
38.Lb7 e5 (851.210.719) 526

38 26:58 +5.21 25...Dxg2 26.fxe4 Dxe4 27.Dxe4 fxe4
28.Tde1 Tf2 29.La5 Td6 30.Txe4 Tf5
31.Lb4 Tc6 32.Ld2 a5 33.The1 a4
34.La2 Kf7 35.Th4 Kg7 36.Lc1 Pc7
37.The4 Kf7 38.c4 bxc4 (851.210.719) 526

38 26:58 +5.78 25...Pc7 26.fxe4 Dxe1 27.Thxe1 fxe4
28.Txe4 Td6 29.Kc1 Tfd8 30.Tee1 T8d7
31.Te2 a5 32.Tde1 b4 33.Lf4 Td4
34.Le5 Th4 35.a4 Th5 36.Lxc7 Txc7
37.Txe6 Kg7 38.T6e5 Ta7 (851.210.719) 526
_____________________________________________________

41 38:34 +1.33 25...Dxe1 26.Thxe1 Pxd2+ 27.Txd2 Pc7
28.Ted1 Txd2 29.Txd2 Tf7 30.Td8+ Kg7
31.Tb8 a6 32.Tb7 Kf8 33.c4 Ke8 34.a4 bxc4
35.Lxc4 Td7 36.Ta7 Kd8 37.Lxa6 e5
38.Kc2 Td4 (1.211.795.583) 523

41 38:34 +1.35 25...Pxd2+ 26.Txd2 Dxe1+ 27.Txe1 Pc7
28.Ted1 Tde8 29.Td4 Te7 30.a4 bxa4
31.Txa4 Ta8 32.Td6 h6 33.gxh6 Kh7
34.Th4 Tb8 35.Kc1 e5 36.Tf6 Tb6
37.Tf8 Pe6 38.Tc8 Td6 (1.211.795.583) 523

40 38:34 +5.57 25...Dxg2 26.fxe4 Dxe4 27.Df2 f4
28.Tde1 Df5 29.Dxa7 Tf7 30.Dd4 Tdd7
31.Te5 Pc7 32.Dxd7 Txd7 33.Txf5 gxf5
34.Lxf4 Pd5 35.Le5 f4 36.Lxd5 exd5
37.Lxf4 d4 38.Td1 Kg7 (1.211.795.583) 523

40 38:34 +5.77 25...Pc7 26.fxe4 Dxe1 27.Thxe1 fxe4
28.Txe4 Td6 29.Kc1 Tfd8 30.Tee1 T8d7
31.Te2 Pd5 32.Tf1 a6 33.Tef2 Td8
34.La2 Kg7 35.Te2 T8d7 36.Tfe1 Kf7
37.Th1 Kg7 38.Lb3 Td8 (1.211.795.583) 523

[Eelco de Groot]

[d]3r1rk1/p6p/4p1p1/1p1n1pP1/4n3/PB3P2/1PPB1qP1/1K1RQ2R b - -

Engine: Sun 14 (512 MB)
gemaakt door EN and Stockfish developers (see AUTHOR

42 51:38 +1.40 25...Pxd2+ 26.Txd2 Dxe1+ 27.Txe1 Pc7
28.Ted1 Tde8 29.Td4 Te7 30.a4 bxa4
31.Txa4 Ta8 32.Td6 h6 33.gxh6 Kh7
34.Th4 Tf8 35.c3 Tb8 36.Kc2 a5 37.g4 fxg4
38.Txg4 Tf8 (1.625.803.674) 524

42 51:38 +1.41 25...Dxe1 26.Thxe1 Pxd2+ 27.Txd2 Pc7
28.Ted1 Tde8 29.Td4 Te7 30.a4 bxa4
31.Txa4 Ta8 32.Td6 h6 33.gxh6 Kh7
34.Th4 Tb8 35.Kc1 e5 36.Tf6 Tb6
37.Tf8 Pe6 38.Tc8 Td6 (1.625.803.674) 524

42 51:38 +5.62 25...Dxg2 26.fxe4 Dxe4 27.Df2 f4
28.Tde1 Df5 29.Dxa7 Tf7 30.Dd4 Tdd7
31.Te5 Pc7 32.Dxd7 Txd7 33.Txf5 gxf5
34.Lxf4 Pd5 35.Le5 Td8 36.g6 Td7
37.c4 hxg6 38.cxd5 exd5 (1.625.803.674) 524

41 51:38 +5.77 25...Pc7 26.fxe4 Dxe1 27.Thxe1 fxe4
28.Txe4 Td6 29.Kc1 Tfd8 30.Tee1 T8d7
31.Te2 Pd5 32.Tf1 a6 33.Tef2 Td8
34.La2 Kg7 35.Te2 Tc6 36.Tfe1 Kf7
37.g3 Td7 38.Lb3 Pc7 (1.625.803.674) 524

[Graham Banks]

Here's an old example of a queen sac from a not so strong engine.

[pgn][Event "40 Moves in 62 min"]
[Site "Little Thought Big Heart"]
[Date "2008.04.13"]
[Round "1.1"]
[White "NanoSzachy 3.1"]
[Black "Sage 3.51d"]
[Result "0-1"]

1. c4 {book 0s} e5 {book 0s} 2. Nc3 {book 0s} Nc6 {book 0s}
3. Nf3 {book 0s} Nf6 {book 0s} 4. g3 {book 0s} g6 {book 0s}
5. Bg2 {book 0s} Bg7 {book 0s} 6. d4 {book 0s} exd4 {book
0s} 7. Nxd4 {book 0s} O-O {book 0s} 8. O-O {book 0s} Re8
{book 0s} 9. e3 {+0.18/12 5:15m} a5 {+0.11/13 1:56m (a6)}
10. Qb3 {+0.30/12 4:09m (Bd2)} Ne5 {+0.18/13 1:56m (Ng4)}
11. c5 {+0.55/11 2:49m (Na4)} Bf8 {0.00/14 1:56m} 12. Na4
{+0.41/12 2:15m} d5 {+0.17/15 3:23m} 13. cxd6 {+0.43/11
57s} Bxd6 {+0.08/14 1:53m (Qxd6)} 14. Rd1 {+0.45/11 2:44m
(f4)} Bd7 {-0.18/13 1:53m} 15. Nc3 {+0.47/11 4:28m} Rb8
{-0.14/13 1:53m} 16. f4 {+0.56/11 3:54m} Neg4 {-0.14/13
1:53m} 17. Rd3 {+0.04/12 3:31m} Bc5 {-0.13/13 1:53m}
18. Qc4 {+0.17/11 2:08m} Qe7 {-0.52/13 1:53m} 19. Nd5
{-0.29/12 2:21m} Nxd5 {-0.84/13 1:53m} 20. Bxd5 {-0.49/13
2:00m} Bxd4 {-0.89/13 1:53m} 21. Qxd4 {-0.49/11 28s (Rxd4)}
Bf5 {-0.96/14 1:53m} 22. Rc3 {-0.46/11 39s} Red8 {-1.46/14
1:53m (Rbd8)} 23. Qc4 {-0.96/11 1:45m} b5 {-2.87/15 1:53m}
24. Qc5 {-2.51/12 2:36m} Qe4 {-5.30/14 1:53m} 25. Bxe4
{-2.51/12 3:43m} Rd1+ {-6.96/14 1:53m} 26. Kg2 {+4.84/4 0s}
Bxe4+ {-M-1372/15 1:53m} 27. Kh3 {+5.07/4 0s} Nf2+
{-M-1373/15 1:53m (Bf5)} 28. Kh4 {+2.51/4 0s} Rh1
{-M-1374/15 1:53m (Rd5)} 29. Kg5 {-3.84/10 41s} h6+
{-M-1375/14 1:53m} 30. Kxh6 {-99.84/12 1:42m} f6
{-M-1376/13 1:53m} 31. Qd5+ {-99.86/12 2:12m} Kh8
{-M-1377/19 1:53m} 0-1[/pgn]

Position after White's 24th move.

[d]1r1r2k1/2p1qp1p/6p1/ppQB1b2/5Pn1/2R1P1P1/PP5P/R1B3K1 b

[Eelco de Groot]

[d]3r1rk1/p6p/4p1p1/1p1n1pP1/4n3/PB3P2/1PPB1qP1/1K1RQ2R b - -

Engine: Sun 14 (512 MB)
gemaakt door EN and Stockfish developers (see AUTHOR

42 51:38 +1.40 25...Pxd2+ 26.Txd2 Dxe1+ 27.Txe1 Pc7
28.Ted1 Tde8 29.Td4 Te7 30.a4 bxa4
31.Txa4 Ta8 32.Td6 h6 33.gxh6 Kh7
34.Th4 Tf8 35.c3 Tb8 36.Kc2 a5 37.g4 fxg4
38.Txg4 Tf8 (1.625.803.674) 524

42 51:38 +1.41 25...Dxe1 26.Thxe1 Pxd2+ 27.Txd2 Pc7
28.Ted1 Tde8 29.Td4 Te7 30.a4 bxa4
31.Txa4 Ta8 32.Td6 h6 33.gxh6 Kh7
34.Th4 Tb8 35.Kc1 e5 36.Tf6 Tb6
37.Tf8 Pe6 38.Tc8 Td6 (1.625.803.674) 524

42 51:38 +5.62 25...Dxg2 26.fxe4 Dxe4 27.Df2 f4
28.Tde1 Df5 29.Dxa7 Tf7 30.Dd4 Tdd7
31.Te5 Pc7 32.Dxd7 Txd7 33.Txf5 gxf5
34.Lxf4 Pd5 35.Le5 Td8 36.g6 Td7
37.c4 hxg6 38.cxd5 exd5 (1.625.803.674) 524

41 51:38 +5.77 25...Pc7 26.fxe4 Dxe1 27.Thxe1 fxe4
28.Txe4 Td6 29.Kc1 Tfd8 30.Tee1 T8d7
31.Te2 Pd5 32.Tf1 a6 33.Tef2 Td8
34.La2 Kg7 35.Te2 Tc6 36.Tfe1 Kf7
37.g3 Td7 38.Lb3 Pc7 (1.625.803.674) 524

I don't want to hijack the thread with chess analysis of a different position than the Queen sacrifice, but just one more update in case Peter Martan or Ajedrecista wants to see if this in fact is still a won position for White? Peter did an earlier analysis in the CSS forum with the conclusion "White is +/-" but not more than that I think.


[d]3r1rk1/p6p/4p1p1/1p1n1pP1/4n3/PB3P2/1PPB1qP1/1K1RQ2R b - -

Engine: Sun 14 (512 MB)
gemaakt door EN and Stockfish developers (see AUTHOR

53 860:42 +1.60 25...Pxd2+ 26.Txd2 Dxe1+ 27.Txe1 Pc7
28.Ted1 Txd2 29.Txd2 Tf7 30.Td8+ Kg7
31.Tb8 a6 32.Tb7 Kf8 33.c4 Ke8 34.a4 bxc4
35.Lxc4 Td7 36.Ta7 Kd8 37.Lxa6 Td2
38.Lb7 e5 (31.688.603.999) 613

53 860:42 +1.65 25...Dxe1 26.Thxe1 Pxd2+ 27.Txd2 Pc7
28.Ted1 Tde8 29.a4 bxa4 30.Lxa4 Te7
31.c4 Kg7 32.c5 Pd5 33.Lb3 Pb4
34.Td7 Txd7 35.Txd7+ Tf7 36.Td8 h6
37.Td4 Pa6 38.c6 hxg5 (31.688.603.999) 613

52 860:42 +5.97 25...Pc7 26.fxe4 Dxe1 27.Thxe1 fxe4
28.Txe4 Td6 29.Kc1 Tfd8 30.Tee1 T8d7
31.Te2 a5 32.Tde1 a4 33.La2 Td4
34.Txe6 Pxe6 35.Lxe6+ Kg7 36.Lxd7 Txd7
37.Te5 Tb7 38.Te4 Kf7 (31.688.603.999) 613

52 860:42 +6.02 25...Tfe8 26.fxe4 Dxe1 27.Tdxe1 fxe4
28.Txe4 Td6 29.The1 Kf7 30.Th4 Kg7
31.Teh1 h5 32.gxh6+ Kh7 33.Td4 Ted8
34.Te1 T8d7 35.g4 a5 36.Lxa5 Kxh6
37.Tde4 Tf7 38.Ld2+ Kg7 (31.688.603.999) 613

[Ajedrecista]

Hello Graham:

Here's an old example of a queen sac from a not so strong engine.

[pgn][Event "40 Moves in 62 min"]
[Site "Little Thought Big Heart"]
[Date "2008.04.13"]
[Round "1.1"]
[White "NanoSzachy 3.1"]
[Black "Sage 3.51d"]
[Result "0-1"]

1. c4 {book 0s} e5 {book 0s} 2. Nc3 {book 0s} Nc6 {book 0s}
3. Nf3 {book 0s} Nf6 {book 0s} 4. g3 {book 0s} g6 {book 0s}
5. Bg2 {book 0s} Bg7 {book 0s} 6. d4 {book 0s} exd4 {book
0s} 7. Nxd4 {book 0s} O-O {book 0s} 8. O-O {book 0s} Re8
{book 0s} 9. e3 {+0.18/12 5:15m} a5 {+0.11/13 1:56m (a6)}
10. Qb3 {+0.30/12 4:09m (Bd2)} Ne5 {+0.18/13 1:56m (Ng4)}
11. c5 {+0.55/11 2:49m (Na4)} Bf8 {0.00/14 1:56m} 12. Na4
{+0.41/12 2:15m} d5 {+0.17/15 3:23m} 13. cxd6 {+0.43/11
57s} Bxd6 {+0.08/14 1:53m (Qxd6)} 14. Rd1 {+0.45/11 2:44m
(f4)} Bd7 {-0.18/13 1:53m} 15. Nc3 {+0.47/11 4:28m} Rb8
{-0.14/13 1:53m} 16. f4 {+0.56/11 3:54m} Neg4 {-0.14/13
1:53m} 17. Rd3 {+0.04/12 3:31m} Bc5 {-0.13/13 1:53m}
18. Qc4 {+0.17/11 2:08m} Qe7 {-0.52/13 1:53m} 19. Nd5
{-0.29/12 2:21m} Nxd5 {-0.84/13 1:53m} 20. Bxd5 {-0.49/13
2:00m} Bxd4 {-0.89/13 1:53m} 21. Qxd4 {-0.49/11 28s (Rxd4)}
Bf5 {-0.96/14 1:53m} 22. Rc3 {-0.46/11 39s} Red8 {-1.46/14
1:53m (Rbd8)} 23. Qc4 {-0.96/11 1:45m} b5 {-2.87/15 1:53m}
24. Qc5 {-2.51/12 2:36m} Qe4 {-5.30/14 1:53m} 25. Bxe4
{-2.51/12 3:43m} Rd1+ {-6.96/14 1:53m} 26. Kg2 {+4.84/4 0s}
Bxe4+ {-M-1372/15 1:53m} 27. Kh3 {+5.07/4 0s} Nf2+
{-M-1373/15 1:53m (Bf5)} 28. Kh4 {+2.51/4 0s} Rh1
{-M-1374/15 1:53m (Rd5)} 29. Kg5 {-3.84/10 41s} h6+
{-M-1375/14 1:53m} 30. Kxh6 {-99.84/12 1:42m} f6
{-M-1376/13 1:53m} 31. Qd5+ {-99.86/12 2:12m} Kh8
{-M-1377/19 1:53m} 0-1[/pgn]

Position after White's 24th move.

[d]1r1r2k1/2p1qp1p/6p1/ppQB1b2/5Pn1/2R1P1P1/PP5P/R1B3K1 b

What an example! From 2008, no less. It can be tested as a mate-in-N position indeed. Analysis by SF 16.1 with Multi-PV = 2:

Code: Select all

FEN: 1r1r2k1/2p1qp1p/6p1/ppQB1b2/5Pn1/2R1P1P1/PP5P/R1B3K1 b - - 1 24

Stockfish_16.1-windows-x86-64-sse41-popcnt:
[...]
---------------------------------------------------------------------------
 40/59	20:18	1.044.909.351	857.664	+5,21	Qe7d7 h2h3 Ng4f6 Bd5b3 a5a4 Qc5xc7 a4xb3 Qc7xd7 Bf5xd7 g3g4 Rb8a8 Rc3xb3 Bd7c6 Kg1f2 Rd8d1 Rb3b4 Nf6e4+ Kf2e2 Rd1g1 f4f5 Ne4g3+ Ke2d2 Ra8c8 a2a4 Bc6e4 Rb4xe4 Ng3xe4+ Kd2e2 Rg1xc1 Ra1xc1 Rc8xc1 a4xb5 Ne4d6 e3e4 Nd6xe4 h3h4 Ne4d6 h4h5 g6g5 h5h6 Rc1c8 Ke2f3
 40/28	20:18	1.044.909.351	857.664	+M14	Qe7e4 Bd5xe4 Rd8d1+ Kg1g2 Bf5xe4+ Kg2h3 Ng4f2+ Kh3h4 Rd1h1 Kh4g5 Rb8e8 h2h4 Rh1h3 Kg5h6 Nf2g4+ Kh6g5 Rh3xg3 Qc5f8+ Kg8xf8 h4h5 Ng4e5+ Kg5h6 Rg3h3 Kh6g5 Rh3xh5+ Kg5f6 Re8e6+

Regards from Spain.

Ajedrecista.

[peter]

16...c5 17.dxc5 f5 18.Ng5 Nxc5 19.Bc4 Bxg5 20.hxg5 Ne4 21.Bb3 g6 22.Kb1 b5 23.Qe2 Qb6 24.f3

With 20.Bxg5 instead of hx(?), SF dev. says after a little Backward of your line and another one of his own:

[d]3r1rk1/ppq3pp/4p3/2nn1pB1/2B4P/P4Q2/1PP2PP1/2KR3R b - - 0 20

Analysis by Stockfish dev-20240505-f1612612:

20...Se4 21.Db3 Sxf2 22.Lxd8 Txd8 23.Lxd5 Sxd1 24.Txd1 Txd5 25.Txd5 exd5 26.Dxd5+ Df7 27.Dd8+ Df8 28.Dd7 Dc5 29.De8+ Df8 30.De6+ Kh8 31.Dd7 Db8 32.Dxf5 h6 33.Kb1 Dd8 34.De4 b6 35.Ka2 Df6 36.De8+ Kh7 37.h5 Dd4 38.De2 Kh8 39.b3 Dd5 40.g4 Dc5 41.De8+ Kh7 42.De4+ Kh8 43.Kb2 Df8 44.Dd3 De7 45.Dd4 Dc7 46.De3 Db8 47.De6 Dd8 48.De5 a6 49.De3 Db8 50.Dd4 a5 51.Dd7 De5+ 52.Ka2 Db8 53.Kb1 Kh7 54.Dd3+ Kh8
Tiefe: 46/75 00:01:41 1371MN
Weiß steht deutlich besser.
+- (1.98)

So, yes, that might be won for White too. BTW I had a game between Lc0 and SF after 16...c5 instead of ...b5(?) also, again with 28 threads of 3.5GHz for SF with Black and 3070ti GPU for Lc0 with White, TC 25'+5"

[pgn][Event "CCC22 Semifinals -dev.16...c5"]
[Site "Chess.com"]
[Date "2024.05.17"]
[Round "69"]
[White "Lc0"]
[Black "SF"]
[Result "1-0"]
[ECO "B11"]
[Annotator "IWS-Tool: Queen Sacrifice found in this game"]
[PlyCount "149"]
[EventDate "2024.??.??"]
[TimeControl "25'+5"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. d4 Qb6 7. Qd3 Na6 8. a3 Ne7 9. Be2 Rd8 10. Be3 dxe4 11. Nxe4 Nd5 12. h4 Be7 13. O-O-O O-O 14. Bg5 Qc7 15. Qf3 f6 16. Bd2 c5 {1.39;1.16: 'Beide letzter Buchzug'} 17. dxc5 {1.39/24 139} f5 {1.16/37 88} 18. Ng5 {1.39/27 1} Nxc5 {1.10/36 31} 19. Bc4 {1.37/27 1} Ne4 {1.20/38 47 (Dc6)} 20. Bxd5 {1.42/27 76} Rxd5 {1.12/41 0} 21. Nxe4 {1.38/29 24} fxe4 {1.07/36 10} 22. Qxe4 {1.36/27 14} Re5 {1.38/46 123} 23. Qg4 {1.35/29 4} Rxf2 {1.50/41 184} 24. Rhf1 {1.33/30 0} Rxf1 {1.46/39 34} 25. Rxf1 {1.28/31 0} Rf5 {1.52/40 42} 26. Rxf5 {1.26/27 1} exf5 {1.48/38 35} 27. Qxf5 {1.26/27 1} Qc6 {1.53/40 60 (Lxh4)} 28. Qg4 {1.29/29 116} Bf6 {1.59/43 0 (h5)} 29. Bg5 {1.29/18 178} h5 {1.78/45 0} 30. Qg3 {1.22/18 259 (Df4)} Kh7 {1.94/42 144 (a6)} 31. Kb1 {1.25/16 21} Qe6 {2.13/42 58 (Lxg5)} 32. Qd3+ {1.66/22 40 (Lxf6)} Kh8 {3.48/35 121 (g6)} 33. a4 {2.08/21 6 (Dg6)} Qe1+ {2.68/35 94} 34. Ka2 {2.09/22 6} Qb4 {3.19/37 227} 35. Qb5 {2.09/23 0} Qe4 {3.26/34 38} 36. Bxf6 {2.02/20 26} gxf6 {3.20/35 22} 37. Qxh5+ {2.07/22 0} Kg7 {3.57/35 77} 38. Qf3 {2.11/17 0} Qxa4+ {3.79/37 153} 39. Kb1 {2.08/18 0} Qb4 {4.03/39 88} 40. c3 {2.09/20 0} Qe7 {4.15/38 11} 41. h5 {2.12/17 35} a6 {4.15/35 0 (b6)} 42. Kc2 {2.38/16 204 (Dg4+)} a5 {4.35/23 19 (Kh7)} 43. Qg4+ {3.73/19 88 (Kb3)} Kh8 {3.75/16 1} 44. Kb3 {5.50/19 45} b5 {5.18/23 0} 45. h6 {9.97/17 54 (Df5)} a4+ {5.15/17 3 (Df7+)} 46. Ka2 {21.29/15 35} Qf7+ {6.22/24 0} 47. c4 {36.53/7 32 (Ka1)} bxc4 {199.68/62 12 (b4)} 48. Ka3 {#143/1 0} Qf8+ {199.70/67 3} 49. Kxa4 {#142/1 0} Qa8+ {199.72/58 2 (De8+)} 50. Kb4 {#139/1 0} Qb7+ {199.74/69 3} 51. Kxc4 {#138/1 0} Qc7+ {199.76/57 5 (Dc6+)} 52. Kb3 {#137/1 0 (Kb4)} Qb7+ {199.78/72 4 (Db6+)} 53. Kc3 {#136/1 0} Qc7+ {199.80/60 5 (Dc6+)} 54. Kd2 {#135/1 0} Qd6+ {#26/58 20} 55. Ke2 {#134/1 0 (Ke1)} Qa6+ {#24/67 5} 56. Kf3 {#133/1 0 (Kf2)} Qd3+ {#24/55 3} 57. Kf2 {#132/1 0} Qd2+ {#23/70 2} 58. Kg3 {#131/1 0 (Kg1)} Qe1+ {#22/74 7 (De3+)} 59. Kh2 {#130/1 0} Qe5+ {#21/64 2} 60. Kh3 {#129/1 0} f5 {#20/60 2} 61. Qg7+ {#128/1 0} Qxg7 {#19/31 0} 62. hxg7+ {#127/1 0} Kxg7 {1/0 0} 63. b4 {1/0 0} Kf6 {1/0 0} 64. b5 {1/0 0} Kg5 {1/0 0} 65. b6 {1/0 0} Kf6 {1/0 0} 66. b7 {1/0 0} Ke7 {1/0 0} 67. b8=Q {1/0 0} Kd7 {1/0 0} 68. g4 {1/0 0} f4 {1/0 0} 69. Qxf4 {1/0 0} Ke7 {1/0 0} 70. g5 {1/1 0} Ke8 {1/0 0} 71. g6 {1/1 0} Kd8 {1/0 0} 72. g7 {1/1 0} Kc8 {1/0 0} 73. g8=Q+ {2/0 0} Kb7 {2/1 0} 74. Qd6 {1/0 0} Ka7 {1/1 0} 75. Qgb8# {#1/1 0;1-0 Lc0 v0.32.0-dag+git.4cfe7426-Stockfish AMD, Schnellschach 25.0min+5.0sek (1)} 1-0
[/pgn]
That deviates from your line at 19...Ne4 instead of ...Bg5, regards

[Eelco de Groot]

Thanks Peter for your analysis! My computer was still running with a restart after Windows almost crashed and I had to close everything down (resolution back to 640 point etc., too little memory in my Dell computer it has only 8 Gb Ram).

Then the line was almost yours but with an accidental deviation when there were two equal moves. I just wanted to see how far the score would go up but the progress in the endgame is slow, or horizon with a win score very far away.

[pgn]
[Event "?"]
[Site "Chess.com"]
[Date "2024.05.17"]
[Round "325"]
[White "Stockfish"]
[Black "Dragon"]
[ECO "B11"]
[Result "1-0"]

1. e4 {book } c6 {book } 2. Nc3 {book } d5 {book } 3. Nf3
{book } Bg4 {book } 4. h3 {book } Bxf3 {book } 5. Qxf3
{book } e6 {book } 6. d4 {book } Qb6 {book } 7. Qd3 {book }
Na6 {book } 8. a3 {book } Ne7 {book } 9. Be2 {+0.98/29
3.8s, ev=0.98, d=29, pd=Rd8, mt=00:00:03, tl=00:00:57,
s=86137 kN/s, n=328183338, pv=Be2 Rd8 Be3 dxe4 Nxe4 Nd5
O-O-O Be7 h4 O-O Bg5 Qc7 Qf3 f6 Bd2 b5 Bd3 Qb6 Ng5 fxg5
Bxh7+ Kh8 hxg5 Rxf3 Bf5+ Kg8 Bxe6+ Rf7 g6 Bxa3 Bxf7+ Kf8
Rde1 Bxb2+ Kb1 Nc3+ Kxb2 Na4+ Kb1, tb=8, R50=50, wv=0.98 }
Rd8 {-0.84/24 2.7s, ev=-0.84, d=24, pd=Be3, mt=00:00:02,
tl=00:00:58, s=151455 kN/s, n=413777355, pv=Rd8 Be3 dxe4
Nxe4 Nd5 O-O-O Be7 h4 O-O Bg5 Qc7 Kb1 c5 Bxe7 Qxe7 Qg3 cxd4
Bxa6 bxa6 Rxd4 f5 Nc3 Qc5 Rd3 Nf6 Rhd1 Rxd3 Rxd3 h6 Qf4 Re8
Rd2 a5 f3 Kf7 Na4 Qc6, tb=0, R50=49, wv=0.84 } 10. Be3
{+1.09/24 1.8s, ev=1.09, d=24, pd=dxe4, mt=00:00:01,
tl=00:00:56, s=89627 kN/s, n=157206941, pv=Be3 dxe4 Nxe4
Nf5 O-O-O Nc7 g4 Nxe3 fxe3 Qa5 h4 b5 c3 Be7 Ng5 f6 Nxh7
Bxa3 Kc2 Qa4+ b3, tb=5, R50=50, wv=1.09 } dxe4 {-0.81/26
1.8s, ev=-0.81, d=26, pd=Nxe4, mt=00:00:01, tl=00:00:57,
s=169217 kN/s, n=310006088, pv=dxe4 Nxe4 Nd5 O-O-O Be7 h4
O-O Bg5 Qc7 Kb1 c5 Bxe7 Qxe7 Qg3 Ndc7 dxc5 Nxc5 Nc3 Nd5
Nxd5 exd5 Bf3 Ne4 Qf4 Nxf2 Rhe1 Ne4 c4 Qf6 Qxf6 gxf6 Bxe4
dxe4 Rxd8 Rxd8, tb=0, R50=50, wv=0.81 } 11. Nxe4 {+1.11/23
1.2s, ev=1.11, d=23, pd=Nd5, mt=00:00:01, tl=00:00:56,
s=96095 kN/s, n=112047240, pv=Nxe4 Nd5 O-O-O Be7 h4 O-O Bg5
Qc7 Qf3 f6 Bd2 c5 dxc5 f5 Ng5 Nxc5 Bc4 Ne4 Bxd5 Rxd5 Nxe4
fxe4 Qxe4 Qc6 f3 Bf6 Bb4 Rfd8 Rxd5 Rxd5 Kb1 h5 c4, tb=11,
R50=50, wv=1.11 } Nd5 {-0.83/26 2.1s, ev=-0.83, d=26,
pd=O-O-O, mt=00:00:02, tl=00:00:56, s=176118 kN/s,
n=363509172, pv=Nd5 O-O-O Be7 h4 O-O Bg5 Qc7 Qf3 b5 Kb1 Rb8
Rh3 f5 Nc3 Nf6 Qe3 Qd7 Bf4 Bd6 Be5 Nc7 h5 Ncd5 Qg3 Nxc3+
Qxc3 b4, tb=1, R50=50, wv=0.83 } 12. h4 {+1.16/31 6.7s,
ev=1.16, d=31, pd=Be7, mt=00:00:06, tl=00:00:50, s=84096
kN/s, n=562186151, pv=h4 Be7 O-O-O O-O Bg5 Qc7 Qf3 b5 Kb1
Rb8 g4 c5 Bxe7 Qxe7 h5 c4 g5 Rfc8 h6 g6 Qg3 Rb6 Qe5 Qf8 Rh4
b4 a4 Nb8 Nc5 Nc6 Qg3 e5 Nd7 Nc3+ Ka1 Ra6 bxc3 Rxa4+ Kb2
Qe7 dxe5 b3 Rd6 Ra2+ Kc1, tb=4990, R50=50, wv=1.16 } Be7
{-0.76/24 2.0s, ev=-0.76, d=24, pd=O-O-O, mt=00:00:01,
tl=00:00:55, s=159818 kN/s, n=316601422, pv=Be7 O-O-O O-O
Bg5 Qc7 Kb1 c5 Bxe7 Qxe7 Qg3 Ndc7 Qe3 b6 dxc5 Nd5 Qg5 Nxc5
Qxe7 Nxe7 Nxc5 bxc5 h5 Nd5 Bf3 Nb6 b3 Rb8, tb=9, R50=50,
wv=0.76 } 13. O-O-O {+1.12/26 1.1s, ev=1.12, d=26, pd=O-O,
mt=00:00:01, tl=00:00:50, s=112473 kN/s, n=124282717,
pv=O-O-O O-O Bg5 Qc7 Qf3 b5 Kb1 Rb8 g4 f6 Bc1 c5 dxc5 Nxc5
Rxd5 exd5 Nc3 Qb7 Nxd5 Rfe8 Rd1 Kh8 g5 fxg5 hxg5 Bf8 g6 h6
Qh5 Ne4 Rd4 Qc6 Be3 Nf6 Nxf6 Qxf6, tb=305, R50=50, wv=1.12
} O-O {-0.87/26 1.8s, ev=-0.87, d=26, pd=Bg5, mt=00:00:01,
tl=00:00:54, s=154340 kN/s, n=278430288, pv=O-O Bg5 Qc7 Qf3
f6 Bd2 b5 Kb1 Qb6 Nc3 Nac7 Nxd5 cxd5 h5 a5 Bf4 b4 Bxc7 Qxc7
a4 f5 Rhe1 Bf6 Qe3 Rd6 g4 h6 gxf5, tb=1, R50=49, wv=0.87 }
14. Bg5 {+1.14/23 1.6s, ev=1.14, d=23, pd=Qc7, mt=00:00:01,
tl=00:00:49, s=107998 kN/s, n=174093247, pv=Bg5 Qc7 Qf3 b5
Kb1 Rb8 g4 f6 Bc1 c5 dxc5 Nxc5 Nxc5 Qxc5 Qe4 Rb6 h5 Rfb8 c3
f5 Qc2 Bf6 Rh3 fxg4 Bxg4 Qc4 Rg3 a5 Re1 Kh8 h6 b4, tb=310,
R50=49, wv=1.14 } Qc7 {-0.83/28 3.9s, ev=-0.83, d=28,
pd=Qf3, mt=00:00:03, tl=00:00:51, s=156549 kN/s,
n=604125593, pv=Qc7 Qf3 f6 Bd2 b5 Rhe1 Qb6 h5 f5 Nc3 Qxd4
Nxd5 Qxd5 Qxd5 cxd5 Bxb5 Nc5 Be3 Kf7 g4 fxg4 Be2 g3 fxg3 a5
Bg4 Ne4 Bb6 Rd6 Bxa5 Rc6 Rf1+ Bf6 Bb4, tb=9, R50=48,
wv=0.83 } 15. Qf3 {+1.15/26 1.5s, ev=1.15, d=26, pd=b5,
mt=00:00:01, tl=00:00:49, s=108023 kN/s, n=164628025,
pv=Qf3 b5 Kb1 Rb8 g4 f6 Bc1 c5 dxc5 Nxc5 Nxc5 Qxc5 Qe4 Rb6
h5 Rfb8 c3 f5 Qc2 Bf6 Rh3 fxg4 Bxg4 Qc4 Be2 Qc7 h6 g6 Bg4
Qc4 Rg3 a5, tb=125, R50=48, wv=1.15 } f6 {-0.94/27 1.9s,
ev=-0.94, d=27, pd=Bd2, mt=00:00:01, tl=00:00:50, s=177484
kN/s, n=327990798, pv=f6 Bd2 b5 Bd3 Qb6 Ng5 fxg5 Qe4 Kf7
hxg5 c5 g6+ Ke8 gxh7 Kd7 Qe1 Qc6 Ba5 Rb8 dxc5 Nxc5 Kb1 Bf6
Be2 Ke7 Bf3 Kf7 Rh5 g5 Bxd5 exd5 f4 Ne6 fxg5 Nxg5 Qg3 Rbc8
c3 Kg7 Bb4 Rfe8, tb=1, R50=47, wv=0.94 } 16. Bd2 {+1.29/21
1.6s, ev=1.29, d=21, pd=c5, mt=00:00:01, tl=00:00:48,
s=93671 kN/s, n=144816272, pv=Bd2 c5 dxc5 f5 Ng5 Nxc5 Bc4
Bxg5 hxg5 Ne4 Bb3 g6 Be3 a5 Rd4 Rfe8 Rhd1 b5 g4 Nxe3 Qxe3
Rxd4 Qxd4 Qf4+ Kb1 fxg4, tb=575, R50=50, wv=1.29 } b5
{-0.94/26 2.8s, ev=-0.94, d=26, pd=Rhe1, mt=00:00:02,
tl=00:00:48, s=179212 kN/s, n=506814271, pv=b5 Rhe1 Qb6 Kb1
Nac7 h5 a5 g4 h6 Bc1 Rb8 Rg1 Kh8 Rg3 b4 a4 f5 gxf5 exf5 Nd2
Qxd4 Nb3 Qe5 Bc4 Bf6 Nd4 f4 Nxc6 Nc3+ Qxc3 bxc3, tb=2,
R50=50, wv=0.94 } ( {Peter's line mostly:} 16... c5 17. dxc5 f5 18. Ng5 Nxc5
19. Bc4 Bxg5 20. Bxg5 Ne4 21. Qb3 Nxf2 22. Bxd8 Rxd8
23. Bxd5 Nxd1 24. Rxd1 Rxd5 25. Rxd5 exd5 26. Qxd5+ Qf7
27. Qd8+ Qf8 28. Qd7 Qc5 29. Qe8+ Qf8 30. Qd7 Qc5 31. Qe8+
Qf8 32. Qe6+ Kh8 33. Qd7 Qb8 34. Qxf5 h6 35. b4 b6 36. Kb2
Qg3 37. Qe4 $16 {See below what Sun thinks here}) 17. Bd3 {+1.53/24 1.5s, ev=1.53, d=24,
pd=Rf7, mt=00:00:01, tl=00:00:48, s=84265 kN/s,
n=129263756, pv=Bd3 Rf7 Nc3 f5 Nxd5 cxd5 Bxb5 Qb6 Qb3 Nc7
Bf1 Qxd4 Be3 Qg4 Bxa7 Bxh4 g3 Bf6 Re1 Bd4 Rh4 Qg5+ f4 Qf6
Bxd4 Qxd4 Qe3 Qa4 Qb6 Qa8 g4 Rb8 Qe3 Qa4 gxf5 exf5 Qd2 h6
Rh3, tb=85, R50=50, wv=1.53 } Qb6 {-0.76/24 1.7s, ev=-0.76,
d=24, pd=Ng5, mt=00:00:01, tl=00:00:48, s=189085 kN/s,
n=310855714, pv=Qb6 Ng5 fxg5 Qe4 Kf7 hxg5 Nac7 Rxh7 Ke8
Rxg7 Rd7 c3 c5 dxc5 Qxc5 f4 Bd6 Rxd7 Kxd7 Rf1 a5 Kb1 b4 c4
Ne7 Be3 Qc6 axb4 axb4, tb=15, R50=50, wv=0.76 } 18. Ng5
{+3.70/25 3.0s, ev=3.70, d=25, pd=fxg5, mt=00:00:03,
tl=00:00:46, s=61482 kN/s, n=185799026, pv=Ng5 fxg5 Bxh7+
Kh8 hxg5 Rxf3 Bf5+ Kg8 Bxe6+ Rf7 g6 Bh4 Rxh4 Kf8 Re1 Rf4
Bxf4 Nxf4 Rxf4+ Ke7 Rf7+ Kd6 Bg4 Kd5 Bf3+ Kd6 Rxg7 b4 Bg4
bxa3 bxa3 Kd5 Rge7 Kxd4 Rd1+ Kc5 Re5+ Rd5 g7 Rxe5 g8=Q Qa5
Rd3 Qe1+ Kb2 Re8 Qg5+ Qe5+ Qxe5+ Rxe5 f4 Re4 g3 Nc7 Rc3+
Kb6 Bd7, tb=968, R50=49, wv=3.70 } fxg5 {-0.68/26 1.8s,
ev=-0.68, d=26, pd=Qe4, mt=00:00:01, tl=00:00:47, s=197273
kN/s, n=343256002, pv=fxg5 Qe4 Kf7 hxg5 Nac7 Rxh7 Ke8 Rxg7
Rd7 Rh7 b4 axb4 Bxb4 Bxb4 Qxb4 g6 Re7 f3 Kd7 c4 Rb8 Rd2 Nf6
Rxe7+ Qxe7 Qe5 Rg8 f4 Kc8 f5 Nd7 Qe3 Qd6 Kb1 exf5 Bxf5 Rxg6
Bxg6 Qxg6+ Qd3 Qf6 Ka2 Qd6 g4 Qf4 Qe2, tb=247, R50=49,
wv=0.68 } 19. Bxh7+ {+3.80/22 2.3s, ev=3.80, d=22, pd=Kh8,
mt=00:00:02, tl=00:00:44, s=75948 kN/s, n=177415823,
pv=Bxh7+ Kh8 hxg5 Rxf3 Bf5+ Kg8 Bxe6+ Rf7 g6 Bh4 Rxh4 Kf8
Re1 Rf4 Bxf4 Nxf4 Rxf4+ Ke7 Bg4+ Kd6 Rf7 b4 Rxg7 Kd5 Rge7
bxa3 bxa3 Kxd4 Rd1+ Kc5 Re5+ Rd5 g7 Rxe5 g8=Q Qa5 Rd3 Qe1+
Bd1 Rd5 Rxd5+ cxd5 Qg7 Kb6 Qf6+ Kb7 Qd4 Qa5 Kb2 Qb5+ Ka2
Qc5 Qxc5 Nxc5, tb=517, R50=50, wv=3.80 } Kh8 {+0.48/25
1.9s, ev=0.48, d=25, pd=Qh5, mt=00:00:01, tl=00:00:46,
s=199030 kN/s, n=373381609, pv=Kh8 Qh5 Nf6 Qg6 b4 hxg5 bxa3
Bc3 a2 b4 Qxb4 gxf6 Rxf6 Kd2 Rxg6 Bxg6+ Kg8 Bxb4 Rxd4+ Bd3
Nxb4 Kc3 Rf4 Bc4 Nd5+ Kb3 Bf6 Bxd5 exd5 Kxa2 Rxf2 Kb3 Rxg2
Rhg1 Re2 Rde1 Rxe1 Rxe1 Kf7 c4, tb=2309, R50=50, wv=-0.48 }
20. hxg5 {+4.05/20 4.4s, ev=4.05, d=20, pd=Rxf3,
mt=00:00:04, tl=00:00:41, s=65120 kN/s, n=287049545,
pv=hxg5 Rxf3 Bf5+ Kg8 Bxe6+ Rf7 g6 Bh4 Rxh4 Kf8 Re1 Rf4
Bxf4 Nxf4 Rxf4+ Ke7 Bg4+ Kd6 Rf7 b4 Rxg7 Kd5 Rf7 Kxd4 Rd1+
Kc5 Rf5+ Rd5 g7 Qd8 Bf3 Nc7 Bxd5 cxd5 axb4+ Kb5 Rf7 Kc6
Rf6+ Kd7 Rg6 Qg8 Rh1 d4 Rh8 Qc4 Rf8 Qf1+ Kd2, tb=3796,
R50=50, wv=4.05 } Rxf3 {-4.72/23 1.3s, ev=-4.72, d=23,
pd=Bf5+, mt=00:00:01, tl=00:00:46, s=161064 kN/s,
n=215181729, pv=Rxf3 Bf5+ Kg8 Bxe6+ Rf7 g6 Rf8 Rh3 Qxd4
Rdh1 Qxd2+ Kxd2 Bg5+ Ke1 Bh6 Rf3 Ne7 Bxf7+ Kh8 Rh5 Nc7 Re5
Ng8 g4 Bc1 g5 Rc8 Kd1 Bxb2 Rh3+ Nh6 Re7 Nd5 Bxd5 cxd5 gxh6
gxh6 Rxh6+ Kg8 Rxa7 Rc4, tb=125, R50=50, wv=4.72 } 21. Bf5+
{+4.27/24 1.4s, ev=4.27, d=24, pd=Kg8, mt=00:00:01,
tl=00:00:40, s=60334 kN/s, n=82175665, pv=Bf5+ Kg8 Bxe6+
Rf7 g6 Bh4 Rxh4 Kf8 Re1 Rf4 Rh3 Ke7 Bxd5+ Kd7 Be6+ Kc7
Bxf4+ Kb7 Be5 Nc7 Bxg7 Rxd4 Rf3 Nxe6 Rxe6 Rd7 Rf7 Rc7 Kb1
a5 Bh6 Qd4 g7 Qg4, tb=147, R50=50, wv=4.27 } Kg8 {-4.72/22
1.0s, ev=-4.72, d=22, pd=Bxe6+, mt=00:00:01, tl=00:00:46,
s=158019 kN/s, n=159757778, pv=Kg8 Bxe6+ Rf7 g6 Bb4 axb4
Qc7 Rde1 Nf6 gxf7+ Qxf7 Bxf7+ Kxf7 c3 Ra8 Bg5 Nd5 f4 Nac7
f5 a5 bxa5 Rxa5 Kc2 Ra8 g4 Rf8 Ra1 Kg8 Ra7 Re8 Kd3, tb=391,
R50=50, wv=4.72 } 22. Bxe6+ {+4.53/20 1.3s, ev=4.53, d=20,
pd=Rf7, mt=00:00:01, tl=00:00:40, s=72290 kN/s, n=92026400,
pv=Bxe6+ Rf7 g6 Bh4 Rxh4 Kf8 Re1 Rf4 Rh3 Ke7 Bxd5+ Kd7 Be6+
Kc7 Bxf4+ Kb7 Be5 Re8 Bxg7 Nc7 Rhe3 b4 axb4 Qb5 d5 Nxd5
Bxd5 Rxe3 fxe3 Qxd5 Bc3 c5 bxc5 a5 g7 a4 Bd4 Qf7 Kb1 Kc6
Rd1 Kb5 c6 Kxc6 Be5, tb=324, R50=49, wv=4.53 } Rf7
{-4.90/24 1.0s, ev=-4.90, d=24, pd=g6, mt=00:00:01,
tl=00:00:46, s=192630 kN/s, n=195905197, pv=Rf7 g6 Bb4 axb4
Qc7 Rde1 Qd7 Bxf7+ Qxf7 gxf7+ Kxf7 c3 Rd6 g4 Rg6 g5 Re6
Rxe6 Kxe6 Kc2 Nac7 Kd3 Ne7 Rh8 Ncd5 b3 Ng6 Rg8 Kf7 Ra8,
tb=679, R50=50, wv=4.90 } 23. g6 {+4.64/23 1.7s, ev=4.64,
d=23, pd=Bh4, mt=00:00:01, tl=00:00:40, s=62877 kN/s,
n=104125168, pv=g6 Bh4 Rxh4 Kf8 Re1 Rf4 Rh3 Ke7 Bxd5+ Kd7
Be6+ Kc7 Bxf4+ Kb7 Be5 Nc7 Bxg7 Re8 Rhe3 b4 axb4 Qa6 d5
Nxd5 Re4 Qa1+ Kd2 Qa4 Bxd5 Rd8 Bd4 Rxd5 g7 Rd8 c3 Qa2 Re7+
Kc8 Re8, tb=2593, R50=50, wv=4.64 } Rdf8 {-4.76/23 1.5s,
ev=-4.76, d=23, pd=Rh3, mt=00:00:01, tl=00:00:45, s=169595
kN/s, n=252018190, pv=Rf8 Rh3 Qxd4 Rdh1 Qh4 Rxh4 Bxh4 Rxh4
Nac7 gxf7+ Rxf7 Bxf7+ Kxf7 Rh8 Ne7 Rb8 a6 Rb7 Ne6 Rb6 g6
Rxa6 Ke8 g4 Kd7 Ra7+ Kd6 f4 c5 b3 Nc6 Rh7 Ncd4, tb=2022,
R50=50, wv=4.76 } 24. Rh3 {+4.88/25 2.2s, ev=4.88, d=25,
pd=Qxd4, mt=00:00:02, tl=00:00:38, s=59094 kN/s,
n=129357080, pv=Rh3 Qxd4 Rdh1 Qxd2+ Kxd2 Bg5+ Ke1 Bh6 Rf3
Nf6 Rxh6 gxh6 Rxf6 Kg7 Rxf7+ Rxf7 Bxf7 h5 Ke2 h4 Ke3 Nc5
Kd4 Nd7 Be8 c5+ Ke3 Ne5 Bxb5 Nxg6 Kf3 Ne5+ Kf4 Kf6 Be2,
tb=33261, R50=50, wv=4.88 } Qxd4 {-4.65/24 1.2s, ev=-4.65,
d=24, pd=Rdh1, mt=00:00:01, tl=00:00:45, s=180845 kN/s,
n=209600152, pv=Qxd4 Rdh1 Qh4 gxf7+ Rxf7 Rxh4 Bxh4 Bxf7+
Kxf7 Rxh4 Kg8 Be3 Kf7 Rh8 Nac7 Bd2 a6 Rc8 c5 Ba5 Ne6 Ra8
Nf6 Ra7+ Ke8 Rxa6 Kd7 Rb6 Nd5 Rxb5 Ndf4 Rb6 Nd4, tb=7331,
R50=49, wv=4.65 } 25. Rdh1 {+4.96/23 1.3s, ev=4.96, d=23,
pd=Qxd2+, mt=00:00:01, tl=00:00:38, s=66110 kN/s,
n=86274822, pv=Rdh1 Qxd2+ Kxd2 Bg5+ Ke1 Bh6 Rf3 Nf6 Rxh6
gxh6 Rxf6 Kg7 Rxf7+ Rxf7 Bxf7 Nc5 Be8 a5 Bxc6 b4 axb4 axb4
Be8 Ne4 Bf7 Nd6 Ke2 Nf5 Kd3 Nh4 g3 Nf5 g4 Nh4 Ke4 Ng2 c3
bxc3, tb=17990, R50=50, wv=4.96 } Qh4 {-4.74/24 2.8s,
ev=-4.74, d=24, pd=Rxh4, mt=00:00:02, tl=00:00:43, s=182672
kN/s, n=503811918, pv=Qh4 Rxh4 Bxh4 Rxh4 Nac7 gxf7+ Rxf7
Bxf7+ Kxf7 Rh8 c5 f4 c4 f5 Ke7 g4 Kf6 Rf8+ Ke5 Ba5 Na6 Rf7
g5 Bc3+ Ke4 Rd7 b4 Rxd5 Kxd5 axb4, tb=24095, R50=50,
wv=4.74 } 26. Rxh4 {+5.37/39 9.8s, ev=5.37, d=39, pd=Bxh4,
mt=00:00:09, tl=00:00:29, s=55145 kN/s, n=542355150,
pv=Rxh4 Bxh4 gxf7+ Rxf7 Rxh4 Nac7 Bxf7+ Kxf7 c4 Nf6 Bc3 a6
Bxf6 Kxf6 cxb5 axb5 Re4 Ne6 b3 Kf7 Kc2 Kf6 f3 Ke7 a4 bxa4
bxa4 Kd6 Kc3 Kd5 Rb4 Nc7 a5 Kc5 Rb1 Na6 Rb7, tb=576392,
R50=49, wv=5.37 } Bxh4 {-5.32/23 3.7s, ev=-5.32, d=23,
pd=Bxf7+, mt=00:00:03, tl=00:00:41, s=213575 kN/s,
n=789589503, pv=Bxh4 Bxf7+ Rxf7 gxf7+ Kf8 Rxh4 Kxf7 Rh8
Nac7 f4 Ne7 Bb4 Ng8 f5 Nd5 g4 Ne3 g5 Nxf5 g6+ Kxg6 Rxg8 Ng3
Bf8 Nh5 Bc5 a5 Ra8 Kf5 b3, tb=24952, R50=50, wv=5.32 }
27. Rxh4 {+5.50/29 3.4s, ev=5.50, d=29, pd=Nac7,
mt=00:00:03, tl=00:00:27, s=62263 kN/s, n=211323844,
pv=Rxh4 Nac7 gxf7+ Rxf7 Bxf7+ Kxf7 c4 Nf6 Bc3 a6 cxb5 axb5
Bxf6 Kxf6 Re4 Ne6 b3 Ke7 a4 bxa4 bxa4 Kd6 Kd2 Nc5 Rb4 g5 a5
g4 Ke3 Na6 Rb1 Kd5 Rb6 Nc7 Kd3, tb=183473, R50=50, wv=5.50
} Nc5 {-5.14/19 1.2s, ev=-5.14, d=19, pd=gxf7+,
mt=00:00:01, tl=00:00:40, s=182285 kN/s, n=223664717,
pv=Nc5 gxf7+ Rxf7 Bxf7+ Kxf7 Rh8 a5 Bxa5 Ne6 Rc8 Ndf4 g3
Nh5 Rxc6 Nd4 Rd6 Ne2+ Kd1 Ng1 Rb6 Ke8 Rxb5 Nf6 Rb8+ Kd7
Rb7+ Ke6 Rxg7 Ne4, tb=15093, R50=50, wv=5.14 } 28. gxf7+
{+5.62/25 3.3s, ev=5.62, d=25, pd=Rxf7, mt=00:00:03,
tl=00:00:24, s=69108 kN/s, n=226053539, pv=gxf7+ Rxf7 Bxf7+
Kxf7 Rh8 Ne4 Ra8 Nxf2 Rxa7+ Kf6 Ra6 Ke5 Rxc6 Ne4 Rc8 g5 Rb8
Nc7 Rb6 Ng3 Bxg5 b4 axb4 Ne6 Be3 Nf5, tb=143908, R50=50,
wv=5.62 } Rxf7 {-4.03/5 0.019s, ev=-4.03, d=5, pd=Bxf7+,
mt=00:00:00, tl=00:00:41, s=68899 kN/s, n=137805, pv=Rxf7
Bxf7+ Kxf7 Rh8 Ne6 Ra8, tb=0, R50=50, wv=4.03 } 29. Bxf7+
{+5.58/26 1.5s, ev=5.58, d=26, pd=Kxf7, mt=00:00:01,
tl=00:00:24, s=71736 kN/s, n=109613105, pv=Bxf7+ Kxf7 Rh8
Ne6 Ra8 Ke7 Rxa7+ Kd6 Bb4+ c5 Ra6+ Kd7 Bc3 Ng5 Bxg7 b4 Be5
bxa3 bxa3 Nf7 Bg3 Nc3 Kd2 Ne4+ Ke3 Nxg3 fxg3, tb=41256,
R50=50, wv=5.58 } Kxf7 {-5.39/17 0.99s, ev=-5.39, d=17,
pd=Rh8, mt=00:00:00, tl=00:00:41, s=233963 kN/s,
n=229050148, pv=Kxf7 Rh8 Ne4 Ra8 a6 Rxa6 Nxf2 b3 Ne4 a4 Ke6
a5 g6 Ra7 b4 Rg7 Kf6 Rb7 Nc5, tb=10843, R50=50, wv=5.39 }
1-0
[/pgn]

From pgn excerpted:
({Peter's line mostly:} 16... c5 17. dxc5 f5 18. Ng5 Nxc5
19. Bc4 Bxg5 20. Bxg5 Ne4 21. Qb3 Nxf2 22. Bxd8 Rxd8
23. Bxd5 Nxd1 24. Rxd1 Rxd5 25. Rxd5 exd5 26. Qxd5+ Qf7
27. Qd8+ Qf8 28. Qd7 Qc5 29. Qe8+ Qf8 30. Qd7 Qc5 31. Qe8+
Qf8 32. Qe6+ Kh8 33. Qd7 Qb8 34. Qxf5 h6 35. b4 b6 36. Kb2
Qg3 37. Qe4 $16 {See below what Sun thinks here})

The last three moves in this line before 37.Qe4 with Multi PV = 4 by Sun 14 and the one ply before that with Multi PV = 3 was in the earlier run I think:

[d]1q5k/pp4p1/7p/5Q2/1P5P/P7/2P3P1/2K5 b - -

Engine: Sun 14 (1024 MB)
gemaakt door EN and Stockfish developers (see AUTHORS

66 698:04 +2.63 35...b6 36.Kb2 Dg3 37.Dc8+ Kh7
38.Dh3 De5+ 39.Dc3 De7 40.Dd3+ Kh8
41.Dd4 De1 42.Df4 Kg8 43.g3 Kh8
44.Df8+ Kh7 45.Df3 De5+ 46.Dc3 De6
47.Dd3+ Kh8 48.Df3 De5+ (24.046.636.124) 574

65 698:04 +2.63 35...Dd8 36.Kb2 Dd4+ 37.Kb3 De3+
38.Ka2 De7 39.Dd5 b6 40.Kb3 De3+
41.Kb2 De1 42.Dd4 De7 43.g3 Kh7
44.Dd3+ Kh8 45.Df3 De5+ 46.Dc3 De8
47.Dc7 h5 48.Dd6 Kh7 (24.046.636.124) 574

65 698:04 +2.63 35...De8 36.Kb2 De7 37.Dd5 b6 38.Dd4 De1
39.Df4 Kg8 40.g3 Kh8 41.Df8+ Kh7
42.Df3 De5+ 43.Dc3 De6 44.Dd3+ Kh8
45.Df3 De5+ 46.Dc3 De8 47.Dc7 De1
48.Df4 De7 (24.046.636.124) 574

beste zet: b7-b6 tijd: 698:04.782 min n/s: 574.114 nodes: 24.046.636.124


[d]1q5k/p5p1/1p5p/5Q2/1P5P/P7/2P3P1/2K5 w - -

Engine: Sun 14 (1024 MB)
gemaakt door EN and Stockfish developers (see AUTHORS

64 1185:58 +2.61 36.Kb2 Dg3 37.Dc8+ Kh7 38.Dh3 De5+
39.Dc3 De7 40.g3 De6 41.Dd3+ Kh8
42.Dd4 De7 43.Df4 De1 44.Dd6 Kg8
45.Dd8+ Kh7 46.Dd3+ Kh8 47.c4 De5+
48.Kb3 De6 49.Kc2 (47.704.660.491) 670

64 1185:58 +2.60 36.De4 Df8 37.Kb2 Df6+ 38.Kb3 Df7+
39.Dc4 Df2 40.Dd5 De3+ 41.Kb2 De7
42.Dd4 De6 43.g3 De7 44.Df4 De1
45.Dd6 Kg8 46.Dd8+ Kh7 47.Dd3+ Kh8
48.c4 De5+ 49.Kb3 (47.704.660.491) 670

64 1185:58 +2.29 36.Df3 De5 37.g3 b5 38.Kb1 a6 39.Ka2 De6+
40.Kb2 De5+ 41.Dc3 De6 42.a4 h5
43.Dc7 Df6+ 44.Kb1 Kh7 45.Df4 De6
46.Kb2 bxa4 47.Ka3 Dg6 48.Df2 Kh8
49.Kxa4 (47.704.660.491) 670

64 1185:58 +2.20 36.Kb1 Dg3 37.Dc8+ Kh7 38.Dh3 De5
39.Dd3+ Kh8 40.g3 b5 41.Ka2 h5
42.Kb3 De6+ 43.Kb2 a6 44.a4 Df6+
45.Dc3 De6 46.Dc7 Df6+ 47.Kb1 Kh7
48.Df4 De6 49.Kb2 (47.704.660.491) 670

[d]1q5k/p5p1/1p5p/5Q2/1P5P/P7/1KP3P1/8 b - -

Engine: Sun 14 (1024 MB)
gemaakt door EN and Stockfish developers (see AUTHORS

55 917:54 +2.60 36...Dg3 37.De4 Df2 38.Kb3 Df7+
39.Dc4 Df2 40.Dd5 De3+ 41.Kb2 De7
42.Dd4 b5 43.Dc3 a6 44.a4 Dd8 45.g3 Db8
46.axb5 axb5 47.g4 De8 48.Dd4 De7
49.Df4 De8 (36.646.571.813) 665

55 917:54 +3.29 36...Dd8 37.Df4 De7 38.Kb3 De1
39.Df8+ Kh7 40.Df5+ Kh8 41.Dc8+ Kh7
42.Ka4 Dxh4 43.Df5+ Kh8 44.Dd5 De7
45.Kb5 De8+ 46.Dc6 De3 47.a4 De7
48.c4 h5 49.Ka6 Dxb4 (36.646.571.813) 665

55 917:54 +3.45 36...Dh2 37.De4 Dd6 38.Kb3 Dd8 39.h5 Dd7
40.g4 Df7+ 41.Kc3 Dc7+ 42.Kb2 Dd8
43.Kb3 Dg8+ 44.Ka4 a6 45.Dc6 Db8
46.c4 Dd8 47.Df3 Dg8 48.Df4 b5+
49.cxb5 De8 (36.646.571.813) 665

54 917:54 +3.51 36...a5 37.g4 axb4 38.axb4 De8 39.g5 De1
40.Df4 De6 41.Dg3 Kh7 42.Dd3+ g6
43.Dd4 h5 44.b5 Dg4 45.Kc3 De6
46.Dc4 Dh3+ 47.Kb2 Dd7 48.Kb3 Dh3+
49.c3 Dd7 (36.646.571.813) 665


[d]7k/p5p1/1p5p/5Q2/1P5P/P5q1/1KP3P1/8 w - -

Engine: Sun 14 (1024 MB)
gemaakt door EN and Stockfish developers (see AUTHORS

67 1540:45 +2.93 37.De4 Df2 38.Kb3 Df7+ 39.Dc4 Dd7
40.Kb2 De7 41.Df4 De1 42.Df8+ Kh7
43.Df5+ Kh8 44.Df4 Kg8 45.g3 De7
46.Df3 De5+ 47.Dc3 De8 48.Dc7 De6
49.Db8+ Kh7 50.Df4 (67.291.031.408) 727

67 1540:45 +2.93 37.Dc8+ Kh7 38.Df5+ Kh8 39.De4 Df2
40.Kb3 Df7+ 41.Dc4 Dd7 42.Kb2 De7
43.Df4 De1 44.Df8+ Kh7 45.Df5+ Kh8
46.Df4 Kg8 47.g3 De7 48.Df3 De5+
49.Dc3 De8 50.Dc7 (67.291.031.408) 727

67 1540:45 +2.82 37.Df8+ Kh7 38.Df5+ Kh8 39.De4 Df2
40.Kb3 Df7+ 41.Dc4 Dd7 42.Kb2 a5
43.g4 axb4 44.axb4 De8 45.Dd4 b5
46.g5 Kh7 47.Dd3+ g6 48.Dc3 h5
49.Dc7+ Kg8 50.Df4 (67.291.031.408) 727

67 1540:45 +2.11 37.Dh3 Df4 38.h5 De5+ 39.Ka2 De8
40.Df3 De6+ 41.Kb2 De5+ 42.Kb3 De6+
43.Kc3 b5 44.Df8+ Kh7 45.Dc5 a6
46.a4 bxa4 47.Kb2 g6 48.Dc7+ Kh8
49.hxg6 Dxg6 50.g3 (67.291.031.408) 727

So, almost +3

[Chessqueen]

My Interesting Wins Search Tool filtered the 1200 games of the just finished Bullet Semifinals on chesscom (ccc22). This game was on the first rank of the found games, my tool finds insteresting. And, what can I say, the tool is right. This game is insane. The madness starts with 18.Ng5!! and the following 12 moves are just - no words to describe...after 30 moves, it is just a winning endgame.
See yourself:

(as usual in ccc, my UHO-openings are used: 8 moves (16 plies), and white always is slightly better. And mention, the chesscom-machine is brutally fast (15x faster than an normal 8core machine), so 1min+1sec thinking-time still leads to high-level chess.)

My Interesting Wins Search Tool is free and can be downloaded on my website:
https://www.sp-cc.de/files/interesting_ ... ch_tool.7z
For filtering these 1200 games, my IWS-tool just needed some seconds, by the way: It is brutally fast and can search much bigger databases very quickly.

I would call it an INSANE- Queen Sac if Stockfish is the only program that can see this Sac, but most of the top 6 programs can also Seem the Queen Sac in move 20

[pgn][Event "CCC22 Bullet: Semifinals (1|1)"]
[Site "Chess.com"]
[Date "2024.05.17"]
[Round "325"]
[White "Alexandria-7.0-avx2"]
[Black "Caissa-1.18-x64-avx2"]
[Result "1-0"]
[ECO "B11"]
[Opening "Caro-Kann"]
[Variation "Two knights, 3...Bg4"]
[TimeControl "60+1"]
[Annotator "IWS-Tool: Queen Sacrifice found in this game"]
[PlyCount "115"]
[GameDuration "00:03:52"]
[GameEndTime "2024-05-17T19:13:56.967 PDT"]
[GameStartTime "2024-05-17T19:10:04.752 PDT"]
[/pgn]

[Chessqueen]

My Interesting Wins Search Tool filtered the 1200 games of the just finished Bullet Semifinals on chesscom (ccc22). This game was on the first rank of the found games, my tool finds insteresting. And, what can I say, the tool is right. This game is insane. The madness starts with 18.Ng5!! and the following 12 moves are just - no words to describe...after 30 moves, it is just a winning endgame.
See yourself:

(as usual in ccc, my UHO-openings are used: 8 moves (16 plies), and white always is slightly better. And mention, the chesscom-machine is brutally fast (15x faster than an normal 8core machine), so 1min+1sec thinking-time still leads to high-level chess.)

My Interesting Wins Search Tool is free and can be downloaded on my website:
https://www.sp-cc.de/files/interesting_ ... ch_tool.7z
For filtering these 1200 games, my IWS-tool just needed some seconds, by the way: It is brutally fast and can search much bigger databases very quickly.

I would call it an INSANE- Queen Sac if Stockfish is the only program that can see this Sac, but most of the top 6 programs can also Seem the Queen Sac in move 20

[pgn][Event "CCC22 Bullet: Semifinals (1|1)"]
[Site "Chess.com"]
[Date "2024.05.17"]
[Round "325"]
[White "Alexandria-7.0-avx2"]
[Black "Caissa-1.18-x64-avx2"]
[Result "1-0"]
[ECO "B11"]
[Opening "Caro-Kann"]
[Variation "Two knights, 3...Bg4"]
[TimeControl "60+1"]
[Annotator "IWS-Tool: Queen Sacrifice found in this game"]
[PlyCount "115"]
[GameDuration "00:03:52"]
[GameEndTime "2024-05-17T19:13:56.967 PDT"]
[GameStartTime "2024-05-17T19:10:04.752 PDT"]
[Event "CCC22 Bullet: Semifinals (1|1)"]
[Site "Chess.com"]
[Date "2024.05.17"]
[Round "325"]
[White "Alexandria-7.0-avx2"]
[Black "Berserk-13-avx2"]
[Result "1-0"]
[BlackElo "3610"]
[ECO "B11"]
[Opening "Caro-Kann"]
[Time "17:17:05"]
[Variation "Two Knights, 3...Bg4 4.h3 Bxf3 5.Qxf3 e6 6.d4"]
[WhiteElo "3610"]
[TimeControl "60+3"]
[Termination "normal"]
[PlyCount "133"]
[WhiteType "program"]
[BlackType "program"]

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3 5. Qxf3 e6 6. d4 Qb6 7. Qd3 Na6 8.
a3 Ne7 9. Be2 Rd8 10. Be3 dxe4 11. Nxe4 Nd5 12. h4 Be7 13. O-O-O O-O 14.
Bg5 Qc7 15. Qf3 f6 16. Bd2 b5 17. Bd3 Qb6 18. Ng5 fxg5 19. Bxh7+ Kh8 20.
hxg5 Rxf3 21. Bf5+ Kg8 22. Bxe6+ Rf7 23. g6 Bh4 24. Rxh4 Kf8 25. Re1 Rf4
26. Rh8+ Ke7 27. Bxd5+ Kd7 28. Be6+ Kc7 29. Rxd8 Rxd4 30. Rf8 Rxd2 31. Rf7+
Kd6 32. Rd7+ Kc5 33. Kxd2 Qb8 34. g3 Qh8 35. Bf5 Kb6 36. Ree7 Nc5 37. Rxg7
Nxd7 38. Rxd7 Qe8 39. g7 a5 40. g4 Kc5 41. f4 Kb6 42. Bd3 a4 43. f5 c5 44.
Rd6+ Ka7 45. Rg6 Qg8 46. Ke3 c4 47. Be4 c3 48. bxc3 b4 49. cxb4 Qb8 50. Kf3
Qd8 51. f6 Qd1+ 52. Ke3 Qc1+ 53. Kd4 Qd2+ 54. Ke5 Qh2+ 55. Ke6 Qe2 56. g8=Q
Qxe4+ 57. Kf7 Qb7+ 58. Kf8 Qb8+ 59. Kg7 Qc7+ 60. Kh8 Kb6 61. Qe6+ Ka7 62.
Rg7 Kb8 63. Rxc7 Kxc7 64. f7 Kb7 65. f8=Q Ka7 66. Qd7+ Ka6 67. Qfd6# 1-0[/pgn]