Lc0 mates SF12 in 19 moves with black

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Jouni
Posts: 3232
Joined: Wed Mar 08, 2006 8:15 pm

Lc0 mates SF12 in 19 moves with black

Post by Jouni »

[pgn]
[White "Stockfish 12"]
[Black "Lc0 v0.26.3"]
[Result "0-1"]
[SetUp "1"]
[FEN "rnbqr1k1/ppp1npbp/6p1/4p3/2Pp4/3P1NP1/PPN1PPBP/R1BQ1RK1 w - - 0 1"]
[PlyCount "38"]

1. b4 Nd7 2. a4 a5 3. b5 Rb8 4. Ba3 Nf5 5. Nd2 Nf6 6. Ne1 h5 7. h4 b6 8. Qc2
Ng4 9. c5 g5 10. hxg5 Qxg5 11. Bc6 h4 12. Nef3 Qh5 13. Bxe8 Be6 14. Bd7 hxg3
15. Bxe6 Qh3 16. fxg3 Nfe3 17. Bxf7+ Kh8 18. Rf2 Qxg3+ 19. Rg2 Qxg2# 0-1

[/pgn]

OK there was 8 moves book so really 27 moves. But definitely not your typical Lc0 win :!: . SF 12 makes a rare tactical blunder. Level was 60 + 0.6.
Jouni
User avatar
Ajedrecista
Posts: 1952
Joined: Wed Jul 13, 2011 9:04 pm
Location: Madrid, Spain.

Re: Lc0 mates SF12 in 19 moves with black.

Post by Ajedrecista »

Hello Jouni:
Jouni wrote: Fri Feb 12, 2021 6:14 pm [pgn]
[White "Stockfish 12"]
[Black "Lc0 v0.26.3"]
[Result "0-1"]
[SetUp "1"]
[FEN "rnbqr1k1/ppp1npbp/6p1/4p3/2Pp4/3P1NP1/PPN1PPBP/R1BQ1RK1 w - - 0 1"]
[PlyCount "38"]

1. b4 Nd7 2. a4 a5 3. b5 Rb8 4. Ba3 Nf5 5. Nd2 Nf6 6. Ne1 h5 7. h4 b6 8. Qc2
Ng4 9. c5 g5 10. hxg5 Qxg5 11. Bc6 h4 12. Nef3 Qh5 13. Bxe8 Be6 14. Bd7 hxg3
15. Bxe6 Qh3 16. fxg3 Nfe3 17. Bxf7+ Kh8 18. Rf2 Qxg3+ 19. Rg2 Qxg2# 0-1

[/pgn]

OK there was 8 moves book so really 27 moves. But definitely not your typical Lc0 win :!: . SF 12 makes a rare tactical blunder. Level was 60 + 0.6.
[d]1r4k1/2pB1pb1/1p2b3/pPP1pn1q/P2p2n1/B2P1Np1/2QNPP2/R4RK1 w - - 0 15

Bxe6?? missing a checkmate in five moves.

Hash cleared before analysis. SF 12 with NNUE disabled. Two cores:

Code: Select all

FEN: 1r4k1/2pB1pb1/1p2b3/pPP1pn1q/P2p2n1/B2P1Np1/2QNPP2/R4RK1 w - - 0 15

Stockfish_20090216_x64_modern:
[...]
 13/21	00:00	     872.985	1.893.676	-6,90	Ba3c1 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Qh5g6+ Kg1h1 Nf5g3+ Kh1h2 Ne3xc2 Nf3xd4 f7xe6 Nd4xc2 Ng3xe2 c5xb6 Rb8xb6 Rf2xe2
 13/18	00:00	     872.985	1.893.676	-6,37	Bd7c6 g3xf2+ Rf1xf2 Ng4e3 Nf3e1 Ne3xc2 Ne1xc2 Nf5e3 Nc2xe3 d4xe3 Rf2g2 e3xd2 c5xb6 Qh5h4 b6xc7 Qh4e1+ Kg1h2 Rb8b6
 13/21	00:00	     872.985	1.893.676	-5,78	Ra1c1 Be6xd7 Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Qc2d2 Ng4xf2 Kg1xf2 Ne3g4+ Kf2g2 Bg7h6 Qd2e1 f7f5 Qe1h4 Qh5xh4 Nf3xh4
 13/23	00:00	     872.985	1.893.676	-4,55	c5c6 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Ne3xc2 Be6xf5 Qh5xf5 Ra1a2 Nc2e3 Kg1h1 Bg7h6 Ra2a1 Bh6f4 Ra1g1+ Kg8h8 Nd2e4 Rb8g8 Rg1xg8+ Kh8xg8
 13/20	00:00	     872.985	1.893.676	-3,90	Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Bd7xe6 Ne3xc2 Be6xg4 Qh5xg4+ Rf2g2 Qg4e6 Ra1c1 Nc2xa3
 13/22	00:00	     872.985	1.893.676	-0,55	c5xb6 Qh5g6 Nf3h4 g3xf2+ Rf1xf2 Nf5xh4 Qc2xc7 Ng4f6+ Kg1h1 Nf6xd7 Ra1g1 Qg6h7 Ba3d6 Nh4f5+ Rf2h2 Be6d5+ Nd2e4
 13/15	00:00	     872.985	1.893.676	+3,48	Bd7xe6 f7xe6 Qc2a2 Qh5g6 Nd2e4 g3xf2+ Rf1xf2
---------------------------------------------------------------------------
 14/21	00:00	   1.388.589	1.986.536	-6,33	e2e4 d4xe3/ep f2xg3 Nf5d4 c5xb6 Nd4xc2 b6xc7 Rb8c8 Bd7xe6 f7xe6 b5b6 Nc2xa3 Ra1xa3 e3xd2
 14/23	00:00	   1.388.589	1.986.536	-6,06	Bd7c6 g3xf2+ Rf1xf2 Ng4e3 Nf3e1 Ne3xc2 Ne1xc2 Nf5g3 c5xb6 c7xb6 Rf2h2 Ng3xe2+ Kg1h1
 14/22	00:00	   1.388.589	1.986.536	-5,51	Ra1c1 Be6xd7 Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Qc2b1 b6xc5 Ba3xc5 Rb8b7 Rc1e1 Bd7xb5 Qb1xb5 Rb7xb5 a4xb5 f7f5 Ne4g5 Ng4xf2 Kg1xf2
 14/26	00:00	   1.388.589	1.986.536	-4,20	c5c6 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Ne3xc2 Be6xf5 Qh5xf5 Ra1a2 Nc2e3 Rf2h2 Qf5g6+ Kg1h1 Ne3g4 Rh2g2
 14/20	00:00	   1.388.589	1.986.536	-3,41	Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Bd7xe6 Ne3xc2 Be6xg4 Qh5xg4+ Rf2g2 Qg4e6 Ra1c1 Nc2xa3 Kg1f2
 14/26	00:00	   1.388.589	1.986.536	-0,77	c5xb6 Qh5g6 Nf3h4 g3xf2+ Rf1xf2 Nf5xh4 Qc2xc7 Ng4f6+ Kg1h1 Nf6xd7 Nd2e4 Be6f5 Ne4c5 Qg6xb6 Qc7xb6 Rb8xb6 Rf2xf5 Nh4xf5 Nc5xd7 Rb6g6
 14/24	00:00	   1.388.589	1.986.536	+2,45	Bd7xe6 f7xe6 Qc2a2 Rb8e8 Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Ra1f1 b6xc5 Ba3c1 c5c4 Bc1xe3 Ng4xe3 Rf2h2 Qh5g6+ Ne4g5 Ne3xf1 Kg1xf1
---------------------------------------------------------------------------
 15/35	00:01	   2.909.293	2.156.629	-7,51	Qc2c4 Be6xd7 Nd2e4 Bd7e6 Qc4c2 g3g2 Kg1xg2 Ng4e3+ f2xe3 Nf5xe3+ Kg2f2 Ne3xc2 Rf1g1 Be6g4 Ra1a2 Nc2xa3 Ra2xa3 f7f5 Ne4g3 Qh5g6 c5c6
 15/24	00:01	   2.909.293	2.156.629	-7,51	Qc2a2 Be6xd7 Nd2e4 Bd7e6 Qa2c2 g3g2 Kg1xg2 Ng4e3+ f2xe3 Nf5xe3+ Kg2f2 Ne3xc2 Rf1g1 Qh5f5 Rg1g5 Nc2xa1 Rg5xf5 Be6xf5 c5xb6
 15/26	00:01	   2.909.293	2.156.629	-7,28	Ba3b2 Be6xd7 Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Qc2d2 Qh5h3 Qd2xe3 Ng4xe3 Bb2c1 b6xc5 Bc1xe3 d4xe3 Rf2g2
 15/20	00:01	   2.909.293	2.156.629	-5,91	Ra1c1 Be6xd7 Nd2e4 Ng4e3 f2xe3 Nf5xe3 Qc2d2 Qh5h3 Qd2xe3 d4xe3 Ne4g5 Qh3h5 c5c6 Bd7g4 Ng5e4 f7f6 Ba3e7 f6f5
 15/23	00:01	   2.909.293	2.156.629	-3,63	Nd2e4 Be6xd7 c5xb6 g3g2 Kg1xg2 Ng4e3+ f2xe3 Nf5xe3+ Kg2f2 Ne3xc2 Rf1h1 Qh5f5 b6xc7 Rb8a8 Ne4d6 Qf5f6 c7c8Q+ Ra8xc8 Nd6xc8 Nc2xa3 Ra1xa3
 15/25	00:01	   2.909.293	2.156.629	-0,38	c5xb6 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Qh5g6+ Kg1h1 Ne3xc2 Be6xf5 Qg6xf5 b6xc7 Rb8c8 Ra1g1 Nc2xa3
 15/30	00:01	   2.909.293	2.156.629	+1,90	Bd7xe6 f7xe6 Qc2a2 Bg7h6 c5xb6 Rb8xb6 Nd2e4 g3xf2+ Rf1xf2 Kg8h8 Ba3c1 Ng4xf2 Kg1xf2 Bh6e3+ Bc1xe3 d4xe3+ Kf2g2 Qh5g4+ Kg2h1 Qg4h5+ Nf3h2 Nf5d4 Ne4f6 Qh5xe2
---------------------------------------------------------------------------
 16/26	00:01	   3.428.299	2.162.964	-7,29	Qc2a2 Be6xd7 Nd2e4 Bd7e6 Qa2c2 g3g2 Kg1xg2 Ng4e3+ f2xe3 Nf5xe3+ Kg2f2 Ne3xc2 Rf1g1 Be6g4 Ra1a2 Nc2xa3 Ra2xa3 f7f5 Ne4g3
 16/26	00:01	   3.428.299	2.162.964	-7,12	Ba3b2 Be6xd7 Nd2e4 g3g2 Kg1xg2 Ng4e3+ f2xe3 Nf5xe3+ Kg2f2 Ne3xc2 Rf1h1 Qh5g6 Ra1g1 Bd7g4 Rh1h4 Nc2e3 Nf3h2 Qg6f5+ Kf2e1
 16/25	00:01	   3.428.299	2.162.964	-6,60	Bd7c6 g3xf2+ Rf1xf2 Ng4e3 Nf3e1 Ne3xc2 Ne1xc2 Nf5e3 Nc2xe3 d4xe3 Rf2g2 e3xd2 c5xb6 Qh5h4 b6xc7 Qh4e1+ Kg1h2 Rb8b6 c7c8Q+ Be6xc8 Rg2xg7+ Kg8xg7
 16/23	00:01	   3.428.299	2.162.964	-5,15	Ra1c1 Be6xd7 Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Qc2b1 b6xc5 Ba3xc5 Bd7e6 b5b6 Ne3d5 b6xc7 Rb8xb1 Rc1xb1
 16/28	00:01	   3.428.299	2.162.964	-3,71	Nd2e4 Be6xd7 c5xb6 Rb8xb6 Qc2xc7 Rb6h6 Qc7d8+ Kg8h7 Nf3h4 g3xf2+ Rf1xf2 Ng4xf2 Kg1xf2 Qh5xh4+ Qd8xh4 Rh6xh4 Ra1g1 Nf5e3 b5b6 Rh4h2+ Kf2e1 f7f5
 16/25	00:01	   3.428.299	2.162.964	 0,00	c5xb6 Qh5g6 Nf3h4 g3xf2+ Rf1xf2 Nf5xh4 Qc2xc7 Ng4f6+ Kg1h1 Nf6xd7 Nd2e4 Qg6h5 Rf2h2 Be6g4 Ba3e7
 16/26	00:01	   3.428.299	2.162.964	+0,70	Bd7xe6 f7xe6 c5xb6 g3g2 Kg1xg2 Nf5e3+ f2xe3 Ng4xe3+ Kg2f2 Ne3xc2 b6xc7 Rb8c8 Rf1h1 Qh5f5 Ra1g1 Rc8xc7 Ba3d6
---------------------------------------------------------------------------
 17/28	00:02	   5.803.963	2.244.378	-7,32	e2e4 d4xe3/ep f2xg3 Nf5d4 Bd7xe6 Nd4xc2 Ra1a2 e3xd2 Ra2xc2 f7xe6 Rc2xd2 Bg7h6 Ba3c1 e5e4 d3xe4 Bh6xd2 Bc1xd2 Qh5xc5+ Kg1h1
 17/26	00:02	   5.803.963	2.244.378	-7,17	Ba3b2 Be6xd7 Nd2e4 g3g2 Kg1xg2 Nf5e3+ f2xe3 Ng4xe3+ Kg2f2 Ne3xc2 Rf1h1 Qh5g6 Ra1g1 Bd7g4 Rh1h4 f7f5 Nf3h2 c7c6 Bb2c1 f5xe4 Nh2xg4 Qg6f5+ Kf2g2 e4xd3 e2xd3
 17/30	00:02	   5.803.963	2.244.378	-6,59	Bd7c6 g3xf2+ Rf1xf2 Ng4e3 Nf3e1 Ne3xc2 Ne1xc2 Nf5e3 Ra1c1 Qh5g6+ Bc6g2 Bg7h6 Nd2e4 f7f5 c5xb6 c7xb6 Nc2xe3 Bh6xe3 Kg1f1 f5xe4 d3xe4 Qg6g7 Rf2f3 Be3xc1 Ba3xc1
 17/28	00:02	   5.803.963	2.244.378	-5,28	Ra1c1 Be6xd7 Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Qc2b1 b6xc5 Ba3xc5 Bd7e6 b5b6 f7f5 Ne4g5 Bg7h6 b6xc7 Rb8xb1 Rc1xb1 Bh6xg5 Rb1b8+ Kg8g7 Nf3xg5 Qh5xg5 c7c8Q Ng4xf2+ Kg1xf2 Qg5g2+ Kf2e1 Be6xc8
 17/26	00:02	   5.803.963	2.244.378	-3,82	Nd2e4 Be6xd7 c5xb6 Rb8xb6 Ne4xg3 Nf5xg3 f2xg3 Qh5h3 e2e4 Bg7h6 Rf1e1 Rb6f6 Qc2g2 Bh6e3+ Re1xe3 Qh3xg2+ Kg1xg2 Ng4xe3+ Kg2h1 Rf6xf3 Ra1c1 Rf3xg3 Rc1xc7 Bd7g4
 17/24	00:02	   5.803.963	2.244.378	 0,00	c5xb6 Qh5g6 Nf3h4 g3xf2+ Rf1xf2 Nf5xh4 Qc2xc7 Ng4f6+ Kg1h1 Nf6xd7 Nd2e4 Qg6h5 Rf2h2 Be6g4 Ba3e7 Bg4f3+ e2xf3 Qh5xf3+ Kh1g1 Qf3g4+ Kg1h1
 17/31	00:02	   5.803.963	2.244.378	+0,81	Bd7xe6 f7xe6 c5xb6 Qh5g6 Nf3h4 g3xf2+ Rf1xf2 Nf5xh4 Qc2xc7 Rb8e8 Ra1f1 Ng4xf2+ Kg1xf2 Bg7h6 Nd2e4 Qg6f5+ Kf2g3 Qf5xf1 Kg3xh4 Qf1f4+ Kh4h5 Bh6f8 b6b7 Bf8xa3 b7b8Q
---------------------------------------------------------------------------
 18/17	00:04	   9.743.711	2.181.265	-7,37	Qc2a2 Be6xd7 Nd2e4 Bd7e6 Qa2c2 Qh5h3 Ne4g5 g3xf2+ Rf1xf2
 18/32	00:04	   9.743.711	2.181.265	-7,36	Ra1d1 Be6xd7 Nd2e4 g3g2 Kg1xg2 Ng4e3+ f2xe3 Nf5xe3+ Kg2f2 Ne3xc2 Rf1h1 Qh5g6 Rd1g1 Bd7g4 Ba3c1 f7f5 Nf3h2 Rb8f8 Nh2xg4 f5xe4+ Kf2g3
 18/29	00:04	   9.743.711	2.181.265	-6,75	Bd7c6 g3xf2+ Rf1xf2 Ng4e3 Nf3e1 Ne3xc2 Ne1xc2 Nf5e3 Nc2e1 Qh5g6+ Ne1g2 Ne3c2 c5xb6 Rb8xb6 Ba3b2 Nc2xa1 Bb2xa1 Bg7h6 Nd2c4 Be6xc4 Bc6e4 Qg6g5 d3xc4 Qg5c1+ Rf2f1 Bh6e3+ Ng2xe3 Qc1xe3+ Rf1f2
 18/32	00:04	   9.743.711	2.181.265	-6,72	Ra1c1 Be6xd7 Nd2e4 g3xf2+ Rf1xf2 Nf5e3 c5xb6 Ne3xc2 b6xc7 Rb8c8 Rc1xc2 Ng4xf2 Kg1xf2 Qh5g6 Ba3c1 f7f6 Rc2c5 Bd7g4
 18/38	00:04	   9.743.711	2.181.265	-4,86	Nd2e4 Be6xd7 c5xb6 Rb8xb6 Ne4xg3 Nf5xg3 f2xg3 Qh5h3 e2e4 Bg7h6 Rf1e1 Rb6f6 Qc2g2 Bh6e3+ Re1xe3 Qh3xg2+ Kg1xg2 Ng4xe3+ Kg2h1 Rf6xf3 Ra1c1 Ne3f1 Kh1g1 Nf1d2 Kg1g2 Rf3xd3 Rc1xc7 Nd2xe4
 18/35	00:04	   9.743.711	2.181.265	-0,98	c5xb6 Qh5g6 Nf3h4 g3xf2+ Rf1xf2 Nf5xh4 Qc2xc7 Ng4f6+ Kg1h1 Nf6xd7 Nd2e4 Be6f5 Ba3e7 Bf5xe4+ d3xe4 Qg6xe4+ Kh1h2 Qe4g4 Ra1g1 Qg4h5 Rg1xg7+ Kg8xg7 Qc7xd7 Nh4g6+ Kh2g1 Ng6f4 Rf2xf4 e5xf4 Qd7xd4+ Kg7h7
 18/32	00:04	   9.743.711	2.181.265	 0,00	Bd7xe6 f7xe6 c5xb6 g3g2 Kg1xg2 Ng4e3+ f2xe3 Qh5g4+ Kg2h1 Qg4h3+ Nf3h2 Nf5g3+ Kh1g1 Ng3xe2+ Kg1f2 Qh3xe3+ Kf2g2 Qe3g5+ Kg2h1 Ne2g3+ Kh1g1 Ng3e4+ Kg1h1
---------------------------------------------------------------------------
 19/32	00:06	  14.415.989	2.159.375	-7,99	Qc2a2 Be6xd7 Nd2e4 Bd7e6 Ne4xg3 Nf5xg3 f2xg3 Be6xa2 Ra1xa2 Qh5h3 e2e4 Bg7h6 Ba3c1 Bh6xc1 Rf1xc1 Qh3xg3+ Ra2g2 Qg3xf3 Rc1f1 Qf3e3+ Rf1f2 Qe3xf2+ Rg2xf2 Ng4xf2 Kg1xf2 b6xc5 Kf2g2 Kg8h8 Kg2h2 Kh8g7 Kh2g3
 19/26	00:06	  14.415.989	2.159.375	-7,59	Qc2c1 Be6xd7 Nd2e4 Bg7h6 c5xb6 Bh6xc1 b6xc7 Rb8e8 Ra1xc1 Nf5h4 Nf3xe5 Qh5xe5 f2xg3 Nh4f5 Rf1xf5 Bd7xf5 Rc1c5 Qe5h8 Kg1g2 Qh8g7
 19/31	00:06	  14.415.989	2.159.375	-6,21	Bd7c6 g3xf2+ Rf1xf2 Ng4e3 Nf3e1 Ne3xc2 Ne1xc2 Nf5e3 Nc2e1 e5e4 Bc6xe4 Bg7e5 Nd2f3 Be5g3 Ba3c1 Kg8h8 Bc1xe3 d4xe3 Rf2g2 Rb8g8
 19/27	00:06	  14.415.989	2.159.375	-6,01	Ra1c1 Be6xd7 Nd2e4 g3xf2+ Rf1xf2 Nf5e3 c5xb6 Ne3xc2 b6xc7 Rb8c8 Rc1xc2 Ng4xf2 Kg1xf2 f7f5 Ne4d6 Bg7h6 Ba3c1 Bh6e3+ Bc1xe3 d4xe3+ Kf2f1 Qh5h3+ Kf1g1 Qh3g4+ Kg1f1 Qg4xa4 Nd6xc8
 19/37	00:06	  14.415.989	2.159.375	-4,78	Nd2e4 Be6xd7 c5xb6 Rb8xb6 Ne4xg3 Nf5xg3 f2xg3 Qh5h3 e2e4 Bg7h6 Rf1e1 Rb6f6 Qc2g2 Bh6e3+ Re1xe3 Qh3xg2+ Kg1xg2 Ng4xe3+ Kg2h1 Rf6xf3 Ba3c5 Ne3g4 b5b6 c7xb6 Bc5xb6 Rf3xg3 Bb6xa5 Ng4f2+ Kh1h2 Rg3xd3 Ba5e1 Nf2xe4 Be1h4 f7f5
 19/36	00:06	  14.415.989	2.159.375	-0,23	c5xb6 Qh5g6 Nf3h4 g3xf2+ Rf1xf2 Nf5xh4 Qc2xc7 Ng4f6+ Kg1h1 Nf6xd7 Nd2e4 Be6f5 Ba3e7 Bf5xe4+ d3xe4 Qg6xe4+ Kh1h2 Qe4g4 Ra1g1 Qg4h5 Rg1xg7+ Kg8xg7 Qc7xd7 Nh4f5+ Kh2g1 Nf5xe7 Qd7xe7 Rb8xb6 Rf2h2
 19/27	00:06	  14.415.989	2.159.375	 0,00	Bd7xe6 f7xe6 c5xb6 g3g2 Kg1xg2 Ng4e3+ f2xe3 Qh5g4+ Kg2h1 Qg4h3+ Nf3h2 Nf5g3+ Kh1g1 Ng3xe2+ Kg1f2 Qh3xe3+ Kf2g2 Qe3g5+ Kg2f3 Qg5e3+ Kf3g2
---------------------------------------------------------------------------
 20/34	00:14	  32.682.705	2.235.326	-11,47	f2xg3 Qh5h3 Nd2e4 Nf5e3 Rf1f2 Ng4xf2 Kg1xf2 Qh3g2+ Kf2e1 Ne3xc2+ Ke1d2 Nc2xa1 Bd7xe6 f7xe6 Kd2d1 Na1b3 Nf3g5 Qg2f1+ Kd1c2 Nb3xc5 Ba3xc5 Qf1xe2+ Kc2c1 b6xc5 Ng5xe6
 20/37	00:14	  32.682.705	2.235.326	-9,63	Qc2b3 Be6xd7 f2xg3 Nf5xg3 Kg1g2 Ng3xe2 Rf1h1 Ne2f4+ Kg2g1 Qh5g6 Nf3h4 Nf4e2+ Kg1f1 Ne2g3+ Kf1g2 Ng4e3+ Kg2f2 Qg6g4 Nd2f3 e5e4 Ra1g1 Ng3xh1+ Kf2e1 e4xf3 Rg1xg4 f3f2+ Ke1d2 f2f1Q
 20/26	00:14	  32.682.705	2.235.326	-8,36	e2e4 d4xe3/ep f2xg3 Nf5d4 Bd7xe6 Nd4xc2 Ra1a2 e3xd2 Ra2xc2 f7xe6 Rc2xd2 Bg7h6 Rd2e2 Qh5h3 Ba3c1 Bh6xc1 Rf1xc1 Qh3xg3+ Re2g2 Qg3xf3 Rc1f1 Qf3e3+ Rf1f2 Qe3e1+ Rf2f1
 20/33	00:14	  32.682.705	2.235.326	-8,21	Qc2a2 Be6xd7 Nd2e4 Bd7e6 Qa2b1 Nf5h4 Nf3h2 Ng4xh2 f2xg3 Nh4f5 Rf1f2 Nh2g4 Qb1e1 Bg7h6 Ba3c1 Nf5e3 Bc1d2 f7f5 Ne4f6+ Ng4xf6 Rf2h2 Qh5g5 Rh2h4 b6xc5
 20/34	00:14	  32.682.705	2.235.326	-5,76	Nd2e4 Be6xd7 Ba3c1 Qh5h3 Ne4g5 g3xf2+ Rf1xf2 Qh3g3+ Rf2g2 Qg3xg2+ Kg1xg2 Nf5e3+ Bc1xe3 Ng4xe3+ Kg2f2 Ne3xc2 Ra1g1 Nc2e3 c5c6 Bd7g4 Nf3h2 Bg4h5 Nh2f3 Ne3d5 Rg1h1 Bh5g4 Nf3h2 Bg4f5 Ng5f3 Nd5f4
 20/37	00:14	  32.682.705	2.235.326	-0,93	c5xb6 Qh5g6 Nf3h4 g3xf2+ Rf1xf2 Nf5xh4 Qc2xc7 Ng4f6+ Kg1h1 Nf6xd7 Nd2e4 Be6f5 Ne4c5 Qg6xb6 Qc7xb6 Nd7xb6 Ba3c1 Bf5g6 Bc1d2 Rb8a8 Nc5a6 Nh4f5 Bd2xa5 Nb6d7 Ra1c1 Nf5e3 Rf2h2
 20/23	00:14	  32.682.705	2.235.326	 0,00	Bd7xe6 f7xe6 c5xb6 g3g2 Kg1xg2 Ng4e3+ f2xe3 Qh5g4+ Kg2h1 Qg4h3+ Nf3h2 Nf5g3+ Kh1g1 Ng3xe2+ Kg1f2 Qh3xe3+ Kf2g2 Qe3g5+ Kg2f3 Qg5e3+
---------------------------------------------------------------------------
 21/23	00:21	  46.100.010	2.158.846	-11,78	f2xg3 Qh5h3 Nd2e4 Nf5e3 Rf1f2 Ng4xf2 Kg1xf2 Qh3g2+ Kf2e1 Ne3xc2+ Ke1d2 Nc2xa1 Bd7xe6
 21/41	00:21	  46.100.010	2.158.846	-9,84	Qc2b2 Be6xd7 Nd2e4 Bg7h6 Qb2a2 g3xf2+ Rf1xf2 Kg8h8 Ba3c1 Nf5e3 Qa2xf7 Qh5xf7 Rf2g2 Rb8g8 Bc1xe3 Ng4xe3 Nf3g5 Qf7g7 Rg2h2 b6xc5 Rh2h4 Qg7g6 Ra1a2 Kh8g7 Rh4h2
 21/45	00:21	  46.100.010	2.158.846	-9,34	Kg1g2 Ng4e3+ f2xe3 Nf5xe3+ Kg2xg3 Qh5g4+ Kg3f2 Qg4g2+ Kf2e1 Ne3xc2+ Ke1d1 Nc2e3+ Kd1e1 Ne3xf1 Bd7xe6 Nf1g3 Ke1d1 f7xe6 Kd1c2 e5e4 d3xe4 d4d3+ e2xd3 Bg7xa1 Ba3b2 Ba1xb2 Kc2xb2 Ng3e2 Kb2c2 Qg2g3
 21/41	00:21	  46.100.010	2.158.846	-9,32	Qc2b3 Be6xd7 f2xg3 Nf5xg3 Kg1g2 Ng3xe2 Rf1h1 Ne2f4+ Kg2g1 Qh5g6 Nf3h4 Nf4e2+ Kg1f1 Ne2g3+ Kf1g2 Ng4e3+ Kg2f2 Qg6h6 Nd2f3 Bd7e6 Rh1g1 Be6xb3 Rg1xg3 Ne3c2 Ra1g1 Qh6e3+ Kf2f1 Qe3xd3+ Kf1g2 e5e4
 21/40	00:21	  46.100.010	2.158.846	-8,17	Ba3c1 g3xf2+ Rf1xf2 Ng4xf2 Kg1xf2 Nf5e3 Nd2e4 Ne3xc2 Bd7xe6 Nc2xa1 Ne4g3 Qh5h8 Be6a2 Na1c2 c5xb6 Rb8xb6 Ba2b3 Nc2b4 Ng3f5 c7c6 Nf5xg7 Qh8xg7 Nf3g5 c6xb5 Bb3xf7+ Kg8f8 a4xb5 Rb6xb5
 21/46	00:21	  46.100.010	2.158.846	-5,68	Nd2e4 Be6xd7 Ba3c1 Qh5h3 Ne4g5 g3xf2+ Rf1xf2 Qh3g3+ Rf2g2 Qg3xg2+ Kg1xg2 Ng4e3+ Bc1xe3 Nf5xe3+ Kg2f2 Ne3xc2 Ra1g1 Nc2e3 c5c6 Ne3g4+ Kf2e1 Bd7c8 Ng5e4 f7f6 Ne4f2 Ng4e3 Nf2d1 Ne3xd1 Ke1xd1 Bc8e6 Kd1c2 Kg8f7 Rg1f1 Kf7e7 Kc2b1 Bg7h6 Kb1c2 Rb8h8
 21/41	00:21	  46.100.010	2.158.846	-0,71	c5xb6 Qh5g6 Nf3h4 g3xf2+ Rf1xf2 Nf5xh4 Qc2xc7 Ng4f6+ Kg1h1 Nf6xd7 Nd2e4 Be6f5 Qc7c6 Bf5xe4+ d3xe4 Rb8xb6 Qc6xg6 Nh4xg6 Ra1c1 Bg7f8 Rc1c8 Kg8g7 Ba3xf8+ Nd7xf8 Rf2h2 Nf8e6 Rc8a8 Kg7f6 Ra8xa5 Ne6c5 Ra5a8 Nc5xe4
---------------------------------------------------------------------------
 22/41	00:29	  63.723.150	2.203.809	-10,33	Qc2b3 Be6xd7 f2xg3 Bd7e6 Qb3xe6 f7xe6 Nd2e4 Qh5h3 Rf1f2 Bg7h6 Nf3g5 Bh6xg5 Ne4xg5 Qh3xg3+ Rf2g2 Qg3e3+ Kg1f1 Qe3xg5 Kf1e1 Qg5h4+ Ke1d2 Qh4h6+ e2e3 Nf5xe3 Rg2e2 b6xc5 Ba3xc5 Ne3c4+ Kd2c2 Ng4e3+ Re2xe3 Nc4xe3+ Kc2b1
 22/35	00:29	  63.723.150	2.203.809	-10,09	Kg1g2 Ng4e3+ f2xe3 Nf5xe3+ Kg2xg3 Qh5h3+ Kg3f2 Qh3g2+ Kf2e1 Ne3xc2+ Ke1d1 Nc2e3+ Kd1e1 Ne3xf1 Bd7xe6 Nf1g3 Ke1d1 f7xe6 Kd1c1 Qg2xe2 Ra1b1 Bg7h6 Kc1c2 e5e4 d3xe4
 22/30	00:29	  63.723.150	2.203.809	-8,58	Qc2b1 Be6xd7 Nd2e4 Nf5h4 Nf3h2 Ng4xh2 f2xg3 Nh4f5 Qb1a2 Bd7e6 Rf1xf5 Be6xf5 Ne4f2 Bf5e6 Qa2c2 Nh2g4 Nf2xg4 Qh5xg4 Kg1f2 Be6d5 Ra1g1 Qg4h3
 22/36	00:29	  63.723.150	2.203.809	-8,47	Ba3c1 g3xf2+ Rf1xf2 Ng4xf2 Kg1xf2 Nf5e3 Nd2e4 Ne3xc2 Bd7xe6 Nc2xa1 Be6a2 Qh5h1 Bc1g5 b6xc5 Ne4xc5 Rb8b6 Kf2g3 Rb6g6 Ba2c4 Na1c2 Nc5e4 Qh1c1 Kg3f2
 22/30	00:29	  63.723.150	2.203.809	-7,48	Ra1e1 Be6xd7 Nd2e4 Ng4e3 f2xe3 Nf5xe3 Qc2c1 g3g2 Nf3h2 g2xf1Q+ Re1xf1 f7f5 Rf1f3 f5xe4 Rf3g3 Kg8f7 Qc1e1 Rb8h8 Qe1f2+ Qh5f5 Qf2xf5+ Bd7xf5
 22/41	00:29	  63.723.150	2.203.809	-5,82	Nd2e4 Be6xd7 c5xb6 Rb8xb6 Ne4xg3 Nf5xg3 f2xg3 Qh5h3 e2e4 Bg7h6 Rf1e1 Rb6f6 Qc2g2 Bh6e3+ Re1xe3 Qh3xg2+ Kg1xg2 Ng4xe3+ Kg2h1 Rf6xf3 Ra1b1 Ne3g4 Ba3e7 Rf3xd3 Be7d8 Rd3c3 Rb1e1 f7f6 Re1e2 Kg8f7 Kh1g2 Bd7e6 b5b6
 22/36	00:29	  63.723.150	2.203.809	-0,27	c5xb6 Qh5g6 Nd2e4 g3xf2+ Rf1xf2 Ng4e3+ Kg1h1 Ne3xc2 b6xc7 Rb8c8 Bd7xc8 Nc2xa1 Rf2g2 Qg6xg2+ Kh1xg2 Be6xc8 b5b6 Na1c2 Ba3c1 Kg8f8 Kg2g1 Nc2e3 Bc1d2 Ne3g4 Nf3g5 Kf8e7 Bd2xa5
Eval > 3 at depth 13. Eval = 0 at depth 20.

------------

NNUE enabled with the default net for SF 12 (two cores). Hash cleared before analysis:

Code: Select all

FEN: 1r4k1/2pB1pb1/1p2b3/pPP1pn1q/P2p2n1/B2P1Np1/2QNPP2/R4RK1 w - - 0 15 

Stockfish_20090216_x64_modern:
[...]
 15/29	00:02	   2.959.265	1.284.403	-6,95	Ra1c1 Be6xd7 Nd2e4 Ng4e3 f2xe3 Nf5xe3 Ne4xg3 Qh5h3 Kg1f2 Qh3g2+ Kf2e1 Ne3xc2+ Rc1xc2 Qg2xg3+ Ke1d2 Bd7g4
 15/21	00:02	   2.959.265	1.284.403	-6,59	Qc2b1 Be6xd7 Nd2e4 Bg7h6 Kg1g2 g3xf2 Ba3c1 Bh6e3 Ne4g3 Nf5xg3 Kg2xg3 b6xc5 Bc1xe3 d4xe3
 15/27	00:02	   2.959.265	1.284.403	-6,13	Nd2c4 Be6xd7 e2e4 d4xe3/ep f2xg3 e5e4 d3xe4 Nf5xg3 Qc2g2 Ng3xe4 Ra1e1 Ne4f2 Nf3g5 Qh5xg5 Re1xe3 Ng4xe3 Qg2xg5 Nf2h3+ Kg1h1 Nh3xg5 Nc4xe3
 15/28	00:02	   2.959.265	1.284.403	-4,66	c5c6 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Ne3xc2 Be6xf5 Qh5xf5 Ba3b2 Qf5f4 Rf2g2 Rb8e8 Ra1f1 Nc2e3 Rf1f2 Ne3xg2 Rf2xg2 Re8e6 Bb2a3 f7f5 Nd2c4
 15/24	00:02	   2.959.265	1.284.403	-2,93	Nd2e4 Be6xd7 c5xb6 g3g2 Kg1xg2 Nf5e3+ f2xe3 Ng4xe3+ Kg2f2 Ne3xc2 b6xc7 Rb8b7 c7c8R+ Bd7xc8 Ra1c1 Bc8h3 Rc1xc2 Bh3xf1 Kf2xf1 Qh5h6 Rc2c6 Qh6h3+ Kf1f2
 15/19	00:02	   2.959.265	1.284.403	 0,00	c5xb6 g3g2 Kg1xg2 Ng4e3+ f2xe3 Qh5g4+ Kg2h1 Nf5g3+ Kh1g1 Ng3e4+ Kg1h1
 15/27	00:02	   2.959.265	1.284.403	+2,30	Bd7xe6 f7xe6 Qc2a2 Qh5g6 Nd2e4 g3xf2+ Rf1xf2 Bg7h6 Rf2g2 Bh6e3+ Kg1f1 Be3f4
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 16/29	00:03	   4.330.562	1.318.685	-7,25	Ra1b1 Be6xd7 Nd2e4 g3g2 Kg1xg2 Ng4e3+ f2xe3 Nf5xe3+ Kg2f2 Ne3xc2 Rf1h1 Qh5g6 Rb1g1 Bd7g4 Ba3c1 f7f5 Ne4g5 Qg6f6 Nf3h2 Nc2e3 Ng5f3 b6xc5 Nh2xg4 Ne3xg4+ Kf2g3 Ng4e3
 16/24	00:03	   4.330.562	1.318.685	-6,40	Nd2c4 Be6xd7 e2e4 d4xe3/ep f2xg3 e5e4 d3xe4 Nf5xg3 Qc2g2 Ng3xe4 Ra1e1 Ne4f2 Nf3g5 Qh5xg5 Re1xe3 Ng4xe3 Qg2xg5
 16/29	00:03	   4.330.562	1.318.685	-6,09	Ra1c1 Be6xd7 Nd2e4 Ng4e3 f2xe3 Nf5xe3 Ne4g5 Bg7h6 Ng5xf7 Ne3xc2 Nf7xh6+ Qh5xh6 Rc1xc2 g3g2 Kg1xg2 Bd7g4 Kg2f2
 16/26	00:03	   4.330.562	1.318.685	-4,67	c5c6 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Ne3xc2 Be6xf5 Qh5xf5 Ba3b2 Nc2e3 Kg1h1 Ne3g4 Rf2g2 Qf5h5+ Nf3h2 f7f5 Ra1g1 Kg8f7 Nd2f3 Rb8g8 Rg2xg4
 16/28	00:03	   4.330.562	1.318.685	-3,01	Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Bd7xe6 Ne3xc2 Be6xg4 Qh5xg4+ Rf2g2 Qg4xg2+ Kg1xg2 Nc2xa1 Nf3h4 Na1c2 Ba3c1 Nc2b4 Nh4f5 Nb4d5 Kg2f3 Kg8h7 c5xb6 Nd5xb6 Ne4g5+ Kh7g6
 16/26	00:03	   4.330.562	1.318.685	 0,00	c5xb6 g3g2 Kg1xg2 Ng4e3+ f2xe3 Qh5g4+ Kg2h1 Nf5g3+ Kh1g1 Ng3e4+ Kg1h1
 16/21	00:03	   4.330.562	1.318.685	+2,59	Bd7xe6 f7xe6 Qc2a2 g3xf2+ Rf1xf2 Rb8e8 Nd2e4 Nf5e3 Rf2g2 Ne3xg2 Kg1xg2 Ng4e3+ Kg2f2 Ne3g4+ Kf2g1 Bg7h6 c5xb6
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 17/21	00:05	   6.136.048	1.271.983	-7,02	Ra1b1 Be6xd7 Nd2e4 g3g2 Kg1xg2 Ng4e3+ f2xe3 Nf5xe3+ Kg2f2 Ne3xc2 Rf1h1 Qh5g6 Rb1g1 Bd7g4 Rh1h4 f7f5 Ba3c1 b6xc5 Ne4xc5 Qg6d6 Nc5a6
 17/29	00:05	   6.136.048	1.271.983	-6,40	Nd2c4 Be6xd7 e2e4 d4xe3/ep f2xg3 e5e4 d3xe4 Nf5xg3 Qc2g2 Ng3xe4 Ra1e1 Ne4f2 Nf3g5 Qh5xg5 Re1xe3 Ng4xe3 Qg2xg5 Nf2h3+ Kg1h1 Nh3xg5 Nc4xe3 Bg7d4 Ne3f5 Bd4xc5 Ba3xc5 b6xc5
 17/28	00:05	   6.136.048	1.271.983	-5,23	Ra1c1 Be6xd7 Nd2e4 g3xf2+ Rf1xf2 Nf5e3 Qc2b1 Bd7e6 Rf2g2 f7f5 Ne4g5 Be6d5 Rg2g3 Bg7h6 c5xb6 c7xb6 Rg3h3 Qh5g6 Rc1c7 Bh6xg5
 17/25	00:05	   6.136.048	1.271.983	-4,62	c5c6 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Ne3xc2 Be6xf5 Qh5xf5 Ba3b2 Rb8e8 Rf2g2 Qf5f4 Ra1f1 Nc2e3 Bb2c1 Ne3xg2 Kg1xg2 f7f5 Nd2c4 Qf4g4+ Kg2f2 e5e4 Rf1g1 e4e3+ Kf2e1
 17/27	00:05	   6.136.048	1.271.983	-4,13	Nd2e4 Be6xd7 c5xb6 Rb8xb6 Ne4xg3 Nf5xg3 f2xg3 Qh5h3 e2e4 Bg7h6 Rf1e1 Rb6f6 Qc2g2 Bh6e3+ Re1xe3 Qh3xg2+ Kg1xg2 Ng4xe3+ Kg2f2 Bd7g4 Ra1g1 Rf6xf3+ Kf2e1 f7f5 Ke1e2 f5xe4 d3xe4
 17/12	00:05	   6.136.048	1.271.983	 0,00	c5xb6 g3g2 Kg1xg2 Ng4e3+ f2xe3 Qh5g4+ Kg2h1 Nf5g3+ Kh1g1 Ng3e4+ Kg1h1
 17/36	00:05	   6.136.048	1.271.983	+1,62	Bd7xe6 f7xe6 c5xb6 Qh5g6 Nf3h4 Nf5xh4 Qc2xc7 g3xf2+ Rf1xf2 Rb8e8 b6b7 Ng4xf2+ Kg1xf2 Qg6g2+ Kf2e1 Qg2g3+ Ke1d1 Qg3g1+ Kd1c2 Qg1xa1 b7b8Q Re8xb8 Qc7xb8+ Kg8h7 Ba3b2 Qa1xa4+ Kc2c1 Nh4f5 b5b6 Qa4c6+ Kc1b1 Nf5e3 Qb8c7 Qc6xc7 b6xc7
---------------------------------------------------------------------------
 18/30	00:07	   9.607.137	1.248.490	-7,25	Ra1b1 Be6xd7 Nd2e4 g3g2 Kg1xg2 Ng4e3+ f2xe3 Nf5xe3+ Kg2f2 Ne3xc2 Rf1h1 Qh5g6 Rb1g1 Bd7g4 c5xb6 Nc2xa3 b6xc7 Rb8f8 Rg1xg4 Qg6xg4 Ne4d6 Qg4e6 c7c8Q Rf8xc8 Nd6xc8 Qe6xc8
 18/32	00:07	   9.607.137	1.248.490	-6,90	Nd2c4 Be6xd7 e2e4 d4xe3/ep f2xg3 e5e4 d3xe4 Nf5xg3 Qc2g2 Ng4f2 Rf1xf2 e3xf2+ Kg1xf2 Ng3xe4+ Kf2e2 Rb8e8 Nc4e3 Qh5h6 Ra1e1 Ne4c3+ Ke2f2 Re8xe3 Re1xe3 Nc3d1+ Kf2e2 Nd1xe3 Qg2f2
 18/32	00:07	   9.607.137	1.248.490	-6,77	Ra1c1 Be6xd7 Nd2e4 Bg7h6 c5xb6 g3xf2+ Rf1xf2 Rb8xb6 Qc2xc7 Ng4xf2 Qc7d8+ Kg8h7 Ne4g5+ Bh6xg5 Nf3xg5+ Qh5xg5+ Qd8xg5 Nf2h3+ Kg1f1 Nh3xg5 Rc1c7 Bd7e6 Kf1e1 Kh7g6 Ke1f2 Nf5e3 Ba3c5
 18/30	00:07	   9.607.137	1.248.490	-4,65	c5c6 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Ne3xc2 Be6xf5 Qh5xf5 Ba3b2 Nc2xa1 Bb2xa1 Bg7h6 Rf2g2+ Kg8f8 Nd2c4 f7f6 Rg2h2 Kf8g7 Kg1f2 Bh6g5 Ba1b2 Kg7f7 Rh2h1 Rb8g8 Kf2e1
 18/33	00:07	   9.607.137	1.248.490	-4,63	Nd2e4 Be6xd7 c5xb6 Rb8xb6 Ne4xg3 Nf5xg3 f2xg3 Qh5h3 e2e4 Bg7h6 Ba3c1 Ng4e3 Qc2f2 Rb6g6 Nf3h2 Bd7e6 Kg1h1 Ne3g4 Qf2g2 Ng4xh2 Qg2xh3 Be6xh3 Bc1xh6
 18/18	00:07	   9.607.137	1.248.490	 0,00	c5xb6 g3g2 Kg1xg2 Be6xd7 Qc2xc7 Ng4e3+ f2xe3 Qh5g4+ Kg2h1 Nf5g3+ Kh1g2
 18/34	00:07	   9.607.137	1.248.490	+0,90	Bd7xe6 f7xe6 c5xb6 Qh5g6 Nf3h4 Nf5xh4 Qc2xc7 g3xf2+ Rf1xf2 Rb8e8 Qc7c6 Bg7h6 Nd2f1 Kg8h8 Qc6e4 Qg6g5 Ba3d6 Ng4f6+ Rf2g2 Nf6xe4 Rg2xg5 Ne4xd6 Rg5h5 Nh4f5 Kg1h1 Re8g8 Kh1h2 e5e4 d3xe4 Nd6xe4
---------------------------------------------------------------------------
 19/24	00:12	  15.774.363	1.265.797	-7,37	Bd7c8 Be6xc8 Nd2e4 Qh5h3 Ne4g5 g3xf2+ Rf1xf2 Qh3g3+ Rf2g2 Qg3xg2+ Kg1xg2
 19/35	00:12	  15.774.363	1.265.797	-7,06	Qc2a2 Be6xd7 Nd2e4 Bd7e6 Qa2c2 g3g2 Kg1xg2 Nf5e3+ f2xe3 Ng4xe3+ Kg2f2 Ne3xc2 c5xb6 Nc2xa1 b6xc7 Rb8c8 Rf1xa1 f7f5 Ne4c5 Be6d5 Ra1g1
 19/34	00:12	  15.774.363	1.265.797	-6,52	Ra1c1 Be6xd7 Nd2e4 Bg7h6 c5xb6 g3xf2+ Rf1xf2 Rb8xb6 Qc2xc7 Ng4xf2 Qc7d8+ Kg8h7 Ne4g5+ Bh6xg5 Nf3xg5+ Qh5xg5+ Qd8xg5 Nf2h3+ Kg1f1 Nh3xg5 Kf1e1 Kh7g6 Rc1c7 Nf5e3 Ke1d2 Bd7g4
 19/37	00:12	  15.774.363	1.265.797	-5,55	Nd2e4 Be6xd7 c5xb6 Rb8xb6 Ne4xg3 Nf5xg3 f2xg3 Qh5h3 e2e4 Bg7h6 Rf1e1 Rb6f6 Qc2g2 Bh6e3+ Re1xe3 Qh3xg2+ Kg1xg2 Ng4xe3+ Kg2h1 Rf6xf3 b5b6 c7xb6 Ba3e7 Ne3c2 Ra1b1 Bd7xa4 Be7d8 Nc2b4 Bd8xb6 Nb4xd3
 19/36	00:12	  15.774.363	1.265.797	-5,01	c5c6 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Ne3xc2 Be6xf5 Qh5xf5 Ba3b2 Nc2xa1 Bb2xa1 f7f6 Nd2c4 Qf5f4 Ba1b2 e5e4 d3xe4 Qf4xe4 Bb2xd4 Rb8d8 Nc4xb6 c7xb6 Bd4xb6 Rd8d1+ Rf2f1 Qe4xe2 Rf1xd1 Qe2xd1+ Kg1f2 Qd1xa4
 19/18	00:12	  15.774.363	1.265.797	 0,00	c5xb6 g3g2 Kg1xg2 Be6xd7 Qc2xc7 Ng4e3+ f2xe3 Qh5g4+ Kg2h1 Nf5g3+ Kh1g2
 19/25	00:12	  15.774.363	1.265.797	+2,87	Bd7xe6 f7xe6 c5xb6 g3xf2+ Rf1xf2 Nf5g3 Rf2h2 Ng4xh2 Qc2xc7 Rb8e8 Kg1f2 e5e4 Qc7xg3 Nh2g4+ Kf2e1 e4xf3 Nd2xf3 Qh5h1+ Qg3g1
---------------------------------------------------------------------------
 20/35	00:25	  34.351.314	1.360.609	-8,31	Nd2c4 Be6xd7 e2e4 d4xe3/ep f2xg3 e5e4 d3xe4 Nf5xg3 Qc2g2 Ng4f2 Rf1xf2 e3xf2+ Kg1xf2 Ng3xe4+ Kf2e2 Rb8e8 Nc4e3 Ne4c3+ Ke2f2 Qh5h6 Ra1e1 Re8xe3 Re1xe3 Nc3d1+ Kf2e2 Qh6xe3+ Ke2xd1 Qe3xa3 Kd1e2
 20/42	00:25	  34.351.314	1.360.609	-8,09	Qc2c4 Be6xd7 Nd2e4 Nf5h4 Nf3g5 Bd7e6 Ne4xg3 Qh5xg5 Ba3c1 Ng4e3 Bc1xe3 Qg5g4 Qc4xe6 f7xe6 Kg1h2 d4xe3 f2xe3 b6xc5 e3e4 Nh4g6
 20/37	00:25	  34.351.314	1.360.609	-7,78	Qc2a2 Be6xd7 Nd2e4 Bd7e6 Ba3c1 Be6xa2 Ra1xa2 g3xf2+ Rf1xf2 Ng4xf2 Kg1xf2 Qh5g6 c5xb6 c7xb6 Ra2a1 Kg8h8 Bc1d2 Nf5e7 Ra1g1 Qg6e6 Nf3g5 Qe6b3 Bd2c1 Qb3xa4
 20/36	00:25	  34.351.314	1.360.609	-7,13	Qc2c1 Be6xd7 Nd2e4 Bg7h6 Qc1e1 g3xf2+ Rf1xf2 Kg8h8 Ba3c1 Nf5e3 Rf2g2 Ne3xg2 Qe1g3 Bh6xc1 Kg1xg2 Ng4e3+ Kg2g1 Bc1b2 Qg3xe5+ Qh5xe5 Nf3xe5 Rb8g8+ Kg1h1
 20/35	00:25	  34.351.314	1.360.609	-5,17	Nd2e4 Be6xd7 Ba3c1 Qh5h3 Ne4g5 g3xf2+ Rf1xf2 Qh3g3+ Rf2g2 Qg3xg2+ Kg1xg2 Nf5e3+ Bc1xe3 Ng4xe3+ Kg2f2 Ne3xc2 Ra1g1 Nc2e3 c5c6 Bd7c8 Kf2e1 Bc8g4 Nf3h2 Bg4f5 Ng5e4 Bf5g6 Ke1f2 Ne3d5 Nh2g4
 20/26	00:25	  34.351.314	1.360.609	 0,00	c5xb6 g3g2 Kg1xg2 Be6xd7 Qc2xc7 Ng4e3+ f2xe3 Qh5g4+ Kg2h1 Nf5g3+ Kh1g2
 20/32	00:25	  34.351.314	1.360.609	+1,02	Bd7xe6 f7xe6 c5xb6 g3g2 Kg1xg2 Qh5g6 Kg2h1 Qg6h5+ Kh1g1 Qh5g6 Nf3h4 Nf5xh4 Qc2c6 c7xb6 Nd2e4 Ng4e3+ Ne4g3 Rb8e8 Qc6e4 Ne3f5 Kg1h2 Nf5xg3 f2xg3 Nh4f5 Rf1g1
---------------------------------------------------------------------------
 21/35	00:38	  54.410.822	1.423.212	-10,73	f2xg3 Qh5h3 Nd2e4 Nf5e3 Rf1f2 Ng4xf2 Kg1xf2 Qh3g2+ Kf2e1 Ne3xc2+ Ke1d2 Nc2xa1 Bd7xe6 f7xe6 c5c6 Qg2h3 Kd2d1 Qh3f1+ Nf3e1 Na1b3 Ba3e7 Qf1h3 Kd1c2
 21/33	00:38	  54.410.822	1.423.212	-7,86	Ba3c1 Ng4xf2 Rf1xf2 g3xf2+ Kg1xf2 Nf5e3 Nd2e4 Ne3xc2 Bd7xe6 Nc2xa1 Be6c4 Na1c2 c5xb6 c7xb6 Ne4d6 Rb8f8 Bc4b3 Nc2e3 Bc1xe3 d4xe3+ Kf2f1 Qh5h6 Bb3xf7+ Rf8xf7
 21/33	00:38	  54.410.822	1.423.212	-7,82	Qc2a2 Be6xd7 Nd2e4 Bd7e6 Ba3c1 Be6xa2 Ra1xa2 Qh5h3 Ne4g5 Qh3h6 Ra2c2 Ng4xf2 Rf1xf2 g3xf2+ Kg1xf2 Nf5e3 Bc1xe3 d4xe3+ Kf2xe3 f7f6 c5xb6 Rb8xb6 Rc2c4 f6xg5 Ke3f2 Rb6g6 Rc4g4 Qh6h5 Rg4g1 Rg6h6
 21/43	00:38	  54.410.822	1.423.212	-7,75	Nd2c4 Be6xd7 e2e4 d4xe3/ep f2xg3 e5e4 d3xe4 Nf5xg3 Qc2g2 Ng4f2 Rf1xf2 e3xf2+ Kg1xf2 Ng3xe4+ Kf2e2 Rb8e8 Nc4e3 Ne4c3+ Ke2f2 Qh5h6 Ra1e1 Re8xe3 Re1xe3 Nc3d1+ Kf2e2 Qh6xe3+ Ke2xd1 Qe3xa3 c5xb6 c7xb6 Kd1e1 Qa3e3+ Qg2e2 Bg7c3+ Ke1d1
 21/58	00:38	  54.410.822	1.423.212	-7,13	Ra1c1 Be6xd7 Nd2e4 Bg7h6 c5xb6 g3xf2+ Rf1xf2 Rb8xb6 Qc2xc7 Rb6g6 Qc7d8+ Kg8h7 Nf3g5+ Rg6xg5 Qd8xd7 Ng4xf2+ Ne4xg5+ Qh5xg5+ Kg1f1 Nf5e3+ Kf1e1 Qg5g1+ Ke1d2 Ne3c4+ Kd2c2 Nc4xa3+ Kc2b3 Qg1xc1 Qd7xf7+ Bh6g7 Qf7xf2 Kh7g8 Qf2g2 Qc1c3+ Kb3a2 Kg8f7 Qg2f3+ Bg7f6 Qf3a8 Kf7e6 Qa8c6+ Qc3xc6 b5xc6
 21/39	00:38	  54.410.822	1.423.212	-5,60	Nd2e4 Be6xd7 Ba3c1 Qh5h3 Ne4g5 g3xf2+ Rf1xf2 Qh3g3+ Rf2g2 Qg3xg2+ Kg1xg2 Ng4e3+ Bc1xe3 Nf5xe3+ Kg2f2 Ne3xc2 Ra1g1 f7f6 Ng5e4 Kg8f7 c5c6 Bd7c8 Ne4g3 Nc2e3 Ng3e4 Bc8g4 Nf3h2 Bg4h5 Nh2f1 Ne3f5
 21/35	00:38	  54.410.822	1.423.212	 0,00	c5xb6 g3g2 Kg1xg2 Be6xd7 Qc2xc7 Ng4e3+ f2xe3 Qh5g4+ Kg2h2 Qg4g3+ Kh2h1 Qg3h3+ Kh1g1 Qh3g3+
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 22/31	00:56	  86.119.186	1.526.286	-9,09	e2e4 d4xe3/ep f2xg3 Nf5d4 Qc2b2 Be6xd7 Qb2xd4 e5xd4 Nd2e4 f7f5 Ne4g5 Bg7f6 c5xb6 Rb8xb6 Ba3c5 Rb6b8 Ra1a2 Bf6xg5 Bc5xd4 c7c6 Nf3xg5 Qh5xg5 b5xc6 Bd7xc6
 22/36	00:56	  86.119.186	1.526.286	-8,48	Qc2b3 Be6xd7 Nd2e4 Bd7e6 Qb3c2 Bg7h6 c5xb6 c7xb6 Qc2c7 Rb8c8 Qc7e7 g3xf2+ Rf1xf2 Nf5xe7 Ba3xe7 Bh6e3 Be7g5 Be3xf2+ Ne4xf2 Rc8c2 Nf2xg4 Be6xg4 Nf3xe5 Qh5xg5 Ne5xg4 Qg5xg4+ Kg1h1 Rc2xe2
 22/36	00:56	  86.119.186	1.526.286	-8,48	Ba3c1 Ng4xf2 Rf1xf2 g3xf2+ Kg1xf2 Nf5e3 Nd2e4 Ne3xc2 Bd7xe6 Nc2xa1 Be6c4 Kg8h8 Bc1g5 Na1c2 Bc4b3 Nc2e3 c5xb6 Ne3g4+ Kf2g3 c7xb6 Bb3xf7 Qh5xf7 Kg3xg4 Qf7a2 Bg5f6 Qa2xe2 Bf6xg7+ Kh8xg7 Ne4g3 Qe2xd3 Nf3xe5 Qd3d1+ Kg4f4 Qd1xa4
 22/39	00:56	  86.119.186	1.526.286	-8,15	Qc2a2 Be6xd7 Nd2e4 Bd7e6 Ba3c1 Be6xa2 Ra1xa2 g3xf2+ Rf1xf2 Ng4xf2 Kg1xf2 Nf5e7 c5xb6 c7xb6 Ra2c2 Ne7d5 Rc2c6 f7f5 Ne4d6 Nd5c3 Rc6c8+ Rb8xc8 Nd6xc8 Nc3xa4 Nc8e7+ Kg8f7
 22/41	00:56	  86.119.186	1.526.286	-5,91	Nd2e4 Be6xd7 c5xb6 Rb8xb6 Ne4xg3 Nf5xg3 f2xg3 Qh5h3 e2e4 Bg7h6 Rf1e1 Rb6f6 Qc2g2 Bh6e3+ Re1xe3 Qh3xg2+ Kg1xg2 Ng4xe3+ Kg2h2 Rf6xf3 Ra1a2 Bd7e6 Ra2b2 Ne3c4 Rb2a2 Nc4xa3 Ra2xa3 Rf3f2+ Kh2g1 Rf2c2 Kg1h1 f7f5 e4xf5 Be6d5+ Kh1g1
 22/38	00:56	  86.119.186	1.526.286	-4,85	c5c6 g3xf2+ Rf1xf2 Ng4e3 Bd7xe6 Ne3xc2 Be6xf5 Qh5xf5 Ba3b2 Nc2xa1 Bb2xa1 f7f6 Nd2c4 Qf5f4 Ba1b2 e5e4 d3xe4 Qf4xe4 Bb2xd4 Rb8d8 e2e3 Qe4d3 Nc4xb6 c7xb6
 22/15	00:56	  86.119.186	1.526.286	 0,00	c5xb6 g3g2 Kg1xg2 Be6xd7 Qc2xc7 Ng4e3+ f2xe3 Qh5g4+ Kg2h2 Qg4g3+ Kh2h1 Qg3h3+ Kh1g1 Qh3g3+
Eval > 2.5 at depth 19. Eval ~ 1 at depth 20.

------------

SF 12 is blind with Bxe6??, fxe6?? in both cases for some reason. Too much pruning?

Regards from Spain.

Ajedrecista.
Jouni
Posts: 3232
Joined: Wed Mar 08, 2006 8:15 pm

Re: Lc0 mates SF12 in 19 moves with black

Post by Jouni »

14. Bd7 loses instantly.
Jouni
MikeGL
Posts: 1010
Joined: Thu Sep 01, 2011 2:49 pm

Re: Lc0 mates SF12 in 19 moves with black

Post by MikeGL »

Jouni wrote: Fri Feb 12, 2021 6:14 pm [pgn]
[White "Stockfish 12"]
[Black "Lc0 v0.26.3"]
[Result "0-1"]
[SetUp "1"]
[FEN "rnbqr1k1/ppp1npbp/6p1/4p3/2Pp4/3P1NP1/PPN1PPBP/R1BQ1RK1 w - - 0 1"]
[PlyCount "38"]

1. b4 Nd7 2. a4 a5 3. b5 Rb8 4. Ba3 Nf5 5. Nd2 Nf6 6. Ne1 h5 7. h4 b6 8. Qc2
Ng4 9. c5 g5 10. hxg5 Qxg5 11. Bc6 h4 12. Nef3 Qh5 13. Bxe8 Be6 14. Bd7 hxg3
15. Bxe6 Qh3 16. fxg3 Nfe3 17. Bxf7+ Kh8 18. Rf2 Qxg3+ 19. Rg2 Qxg2# 0-1

[/pgn]

OK there was 8 moves book so really 27 moves. But definitely not your typical Lc0 win :!: . SF 12 makes a rare tactical blunder. Level was 60 + 0.6.
Thanks for sharing this game.
This is the second Lc0 gem I found where SF12 was crushed with an unstoppable checkmate because of
her heavy pruning, as mentioned by one post above.

Multiple pieces given in exchange for a checkmate, produces amazing gems for Lc0, the
usual trick of Lc0 is trap opponents piece or pieces then simplify to win the endgame..

The first game I have already posted here, http://talkchess.com/forum3/viewtopic.p ... 17#p839617
giving two Rooks for an unstoppable checkmate also.
I told my wife that a husband is like a fine wine; he gets better with age. The next day, she locked me in the cellar.