Pace was 1 minute + 3 sec per move
See the game here :
https://lichess.org/oesUvxNc/white#65
I could reproduce this blunder with my PC : Lc0 0.26.3 opencl on 1050 ti and 128x10-2020_0711_1003_23_621.pb net.
Leela keeps the blunder as best move for 37 seconds !!
Code: Select all
FEN: 6k1/1pQ2pp1/8/pP2Rq2/Pr5p/7P/3r1PP1/4R2K b - - 0 33
Lc0:
1/2 00:00 2 76 +0,03 Qf5xf2 Re5-e8+
2/3 00:00 6 122 +0,10 Qf5xf2 Qc7-c8+ Kg8-h7
2/4 00:00 12 218 +0,07 Qf5xf2 Qc7-c8+ Kg8-h7 Re5-h5+
3/5 00:00 17 229 +0,04 Qf5xf2 Qc7-c8+ Kg8-h7 Re5-h5+ Kh7-g6
3/6 00:00 37 393 +0,21 Qf5xf2 Qc7xb7 g7-g6 Re5-e8+ Kg8-g7 Qb7-e7
4/7 00:00 70 534 +0,21 Qf5xf2 Qc7xb7 g7-g6 Re5-e8+ Kg8-h7 Re1-g1 Rb4xa4
4/8 00:00 77 553 +0,25 Qf5xf2 Qc7xb7 g7-g6 Re5-e8+ Kg8-g7 Qb7-a8 Rb4-b2
5/8 00:00 125 726 +0,29 Qf5xf2 Qc7xb7 g7-g6 Re5-e8+ Kg8-g7 Qb7-a8 Rb4-b2
5/9 00:00 201 985 +0,27 Qf5xf2 Qc7xb7 g7-g6 Qb7-a8+ Kg8-g7 Re5-e8 Rb4-b3 Re8-g8+ Kg7-h7
6/10 00:00 328 1k +0,26 Qf5xf2 Qc7xb7 g7-g6 Qb7-a8+ Kg8-g7 Re5-e8 Rb4-b3 Re1-g1 Rb3xh3+
6/11 00:00 689 1k +0,24 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Rb4xa4 Qb7-e7 Ra4-f4 Qe7-f8+
6/12 00:00 974 1k +0,25 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Rb4-b3 Qb7-c8 Rb3-g3 Re8-g8+
7/12 00:00 1k 2k +0,24 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Rb4xa4 Qb7-e7 Ra4-f4 Qe7-f8+ Kg7-f6
7/13 00:00 1k 2k +0,24 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Rb4xa4 Qb7-e7 Ra4-f4 Qe7-f8+ Kg7-f6
7/14 00:01 4k 2k +0,18 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Qf2-d4 Qb7-e7 Qd4-d6 Qe7xd6 Rd2xd6 Rg1-a1 Rd6-d4 Re8-a8
7/15 00:01 4k 2k +0,18 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Qf2-d4 Qb7-e7 Qd4-d6 Qe7xd6 Rd2xd6 Rg1-a1 Rd6-d4 Re8-a8 Rb4xa4
8/16 00:01 4k 2k +0,18 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Qf2-d4 Qb7-e7 Qd4-d6 Rg1-f1 Qd6xe7 Re8xe7 Kg7-h6 Rf1xf7 Rb4xa4 b5-b6
8/17 00:02 5k 2k +0,18 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Rb4-b3 Qb7-c8 Qf2-d4 Re8-g8+ Kg7-h7 Rg8-f8 Rd2-f2 Rf8-d8 Qd4-e5 Rd8-e8 Qe5-f6
8/18 00:02 7k 2k +0,19 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Rb4-b3 Qb7-c8 Qf2-d4 Re8-g8+ Kg7-h7 Rg8-f8 Rd2-f2 Rf8-d8 Qd4-e5 Rd8-e8 Qe5-f6
9/18 00:03 10k 3k +0,20 Qf5xf2 Qc7xb7 Rb4xa4 Re1-g1 Ra4-d4 Re5-e1 Qf2-f5 b5-b6 Rd4-d3 Re1-e8+ Kg8-h7 Qb7-e4 Qf5xe4 Re8xe4 Rd3-d4 Re4xd4
9/19 00:05 16k 3k +0,20 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-f5 Qf2-e2 Rf5xf7 Rb6-g6 Rf7-f4 Rg6xg2 Rf4xh4+ Kh7-g6
9/20 00:05 17k 3k +0,19 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-f5 Qf2-e2 Rf5xf7 Rb6-g6 Rf7-f4 Rg6xg2 Rf4xh4+ Kh7-g6
10/20 00:06 18k 3k +0,19 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-f5 Qf2-e2 Rf5xf7 Rb6-g6 Rf7-f4 Rg6xg2 Rf4xh4+ Kh7-g6
10/21 00:06 18k 3k +0,19 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-f5 Qf2-e2 Rf5xf7 Rb6-g6 Rf7-f4 Rg6xg2 Rf4xh4+ Kh7-g6
10/22 00:06 19k 3k +0,19 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-h5+ Rb6-h6 Rh5-f5 Qf2-d4 Rf5xa5 Rd2-d1 Qc8-f5+ Rh6-g6 Rg1xd1 Qd4xd1+ Kh1-h2 f7-f6
10/23 00:08 25k 3k +0,19 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-h5+ Rb6-h6 Rh5-f5 Qf2-d4 Rf5xa5 Rd2-d1 Qc8-f5+ Rh6-g6 Rg1xd1 Qd4xd1+ Kh1-h2 Qd1-d6+
10/26 00:09 29k 3k +0,19 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-h5+ Rb6-h6 Rh5-f5 Qf2-d4 Rf5xa5 Rd2-d1 Qc8-f5+ Rh6-g6 Rg1xd1 Qd4xd1+ Kh1-h2 Qd1-d6+
11/26 00:09 30k 3k +0,19 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-h5+ Rb6-h6 Rh5-f5 Qf2-d4 Rf5xa5 Rd2-d1 Qc8-f5+ Rh6-g6 Rg1xd1 Qd4xd1+ Kh1-h2 Qd1-d6+
11/27 00:09 30k 3k +0,19 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-h5+ Rb6-h6 Rh5-f5 Qf2-d4 Rf5xa5 Rd2-d1 Qc8-f5+ Rh6-g6 Rg1xd1 Qd4xd1+ Kh1-h2 Qd1-d6+
11/28 00:10 37k 3k +0,19 Qf5xf2 Qc7xb7 Rb4xa4 b5-b6 Ra4-b4 Re1-g1 Rb4xb6 Qb7-c8+ Kg8-h7 Re5-h5+ Rb6-h6 Rh5-f5 Qf2-d4 Rf5xa5 Rd2-d1 Qc8-f5+ Rh6-g6 Rg1xd1 Qd4xd1+ Kh1-h2 Qd1-d6+
11/28 00:15 55k 3k +0,18 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Rb4-b3 Qb7-c8 Qf2-d4 Rg1-f1 Rd2-d1 Re8-g8+ Kg7-h7 Rg8-h8+ Qd4xh8 Qc8xh8+ Kh7xh8 Rf1xd1 Rb3-b4 Rd1-a1 Kh8-g7 Kh1-g1 Kg7-f6 Kg1-f2 Kf6-e5 Kf2-e3
12/28 00:16 57k 4k +0,18 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Kg8-g7 Re5-e8 Rb4-b3 Qb7-c8 Qf2-d4 Rg1-f1 Rd2-d1 Re8-g8+ Kg7-h7 Rg8-h8+ Qd4xh8 Qc8xh8+ Kh7xh8 Rf1xd1 Rb3-b4 Rd1-a1 Kh8-g7 Kh1-g1 Kg7-f6 Kg1-f2 Kf6-e5 Kf2-e3
12/28 00:21 79k 4k +0,13 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Rb4-b3 Qb7-c8+ Kg8-g7 Re5-e8 Rb3-d3 Re8-g8+ Kg7-f6 Qc8-c6+ Kf6-f5 Qc6-c8+ Kf5-f6
12/29 00:26 99k 4k +0,14 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Rb4-b3 Qb7-c8+ Kg8-g7 Re5-e8 Rb3-d3 Re8-g8+ Kg7-f6 Qc8-c6+ Kf6-f5 Qc6-c8+ Kf5-f6
12/30 00:28 107k 4k +0,14 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Rb4-b3 Qb7-c8+ Kg8-g7 Re5-e8 Qf2-f6 Qc8-g4 Rd2-d4 Re8-e4 Rb3-b4 Re4xd4 Rb4xd4 Qg4-c8 Rd4xa4 Qc8-c7 Ra4-a3 b5-b6 Ra3-c3 Qc7-a7 Rc3xh3+ g2xh3 Qf6-f3+ Rg1-g2 Qf3-f1+ Kh1-h2
12/31 00:28 107k 4k +0,14 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Rb4-b3 Qb7-c8+ Kg8-g7 Re5-e8 Qf2-f6 Qc8-g4 Rd2-d4 Re8-e4 Rb3-b4 Re4xd4 Rb4xd4 Qg4-c8 Rd4xa4 Qc8-c7 Ra4-a3 b5-b6 Ra3-c3 Qc7-a7 Rc3xh3+ g2xh3 Qf6-f3+ Rg1-g2 Qf3-f1+ Kh1-h2
13/31 00:29 109k 4k +0,14 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Rb4-b3 Qb7-c8+ Kg8-g7 Re5-e8 Qf2-f6 Qc8-g4 Rd2-d4 Re8-e4 Rb3-b4 Re4xd4 Rb4xd4 Qg4-c8 Rd4xa4 Qc8-c7 Ra4-a3 b5-b6 Ra3-c3 Qc7-a7 Qf6-e6 Rg1-b1 Qe6-e4 Qa7-d7
13/32 00:30 111k 4k +0,15 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Rb4-b3 Qb7-c8+ Kg8-g7 Re5-e8 Qf2-f6 Qc8-g4 Rd2-d4 Re8-e4 Rb3-b4 Re4xd4 Rb4xd4 Qg4-c8 Rd4xa4 Qc8-c7 Ra4-a3 b5-b6 Ra3-c3 Qc7-a7 Qf6-e6 Rg1-b1 Qe6-e4 Qa7-d7
13/32 00:35 143k 4k +0,15 Qf5xf2 Qc7xb7 g7-g6 Re1-g1 Rb4-b3 Qb7-c8+ Kg8-g7 Re5-e8 Qf2-f6 Qc8-g4 Rd2-d4 Re8-e4 Rb3-b4 Re4xd4 Rb4xd4 Qg4-f3 Rd4xa4 Qf3xf6+ Kg7xf6 Rg1-b1 Ra4-c4 b5-b6 Rc4-c8 Rb1-b5 a5-a4 Rb5-a5 Rc8-c1+ Kh1-h2 Rc1-b1 Ra5xa4 g6-g5 b6-b7
13/32 00:38 155k 4k -0,36 Qf5-d7 Qc7-c5 Rd2-d1 Re1xd1 Qd7xd1+ Kh1-h2 Qd1-d8 Re5-e7 Qd8-b8+ Re7-c7 b7-b6 Qc5-e7 Rb4-f4 Kh2-g1 Qb8-f8 Qe7-e5 Rf4xa4 Kg1-f1
13/32 00:38 157k 4k -0,18 Qf5-f6 Qc7-c8+ Rd2-d8 Qc8xb7 Qf6xf2 Qb7-c7 Rd8-d2 Re1-g1 Kg8-h7 Re5-h5+ Kh7-g6 Qc7-e5 f7-f6 Qe5-e8+
13/32 00:43 171k 4k -0,13 Qf5-f6 Qc7-c8+ Rd2-d8 Qc8xb7 Qf6xf2 Re5-e2 Qf2-f4 Qb7-e7 Rd8-d4 Qe7-e8+ Kg8-h7 Re2-e7 Kh7-g6 Qe8-c6+ Rd4-d6 Qc6-c2+
13/32 00:46 178k 4k -0,19 Qf5-f6 Qc7-c8+ Rd2-d8 Qc8xb7 Qf6xf2 Qb7-e7 Rd8-d2 Qe7-g5 g7-g6 Re5-e8+ Kg8-g7 Qg5-e5+ f7-f6 Qe5-e7+ Kg7-h6 Re8-h8+ Kh6-g5 Re1-e5+ Qf2-f5 Re5xf5+ Kg5xf5 Qe7-c5+ Kf5-e4 Rh8-e8+ Ke4-f4 Qc5-e3+
May be the involved Queen sacrifice made Leela blind in his first seconds search ? I have tried weaker engines on this position and they do not even consider this move as good...