why did they destroy stockfish in finding mates

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Uri Blass
Posts: 10296
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

why did they destroy stockfish in finding mates

Post by Uri Blass »

I used the latest version of stockfish and it was very slow in finding mate.

[d]4k3/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1

Stockfish_20112916_x64_bmi2:
Found 145 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
1/1 00:00 124 62k +32.25 e2-e3
2/2 00:00 502 251k +32.03 e2-e3 Ke8-f8
3/3 00:00 2k 795k +32.17 a2-a3 e7-e6 e2-e3
4/4 00:00 3k 1,365k +32.25 a2-a3 f7-f6 a3-a4 Ke8-f8
5/6 00:00 6k 3,249k +32.48 Nb1-c3 Ke8-f8 a2-a3 Kf8-g8
6/6 00:00 11k 5,295k +32.80 Nb1-c3 Ke8-d8 Nc3-b5 Kd8-c8
7/8 00:00 18k 6,119k +32.78 Nb1-c3 a7-a6 Ng1-f3 d7-d6 a2-a3 Ke8-f8 e2-e3
8/10 00:00 55k 10,966k +32.72 Nb1-c3 a7-a6 Ng1-f3 e7-e6 g2-g3 Ke8-e7 e2-e3 Ke7-f8
9/10 00:00 96k 13,719k +32.82 Ng1-f3 Ke8-f8 c2-c3 d7-d6 Qd1-b3 b7-b6 Qb3-c4 c7-c5
10/12 00:00 217k 16,729k +32.86 c2-c3 e7-e6 Qd1-a4 a7-a6 Qa4-b3 b7-b5 Qb3-a3 c7-c6 Qa3xa6
11/16 00:00 305k 17,935k +32.94 c2-c3 h7-h6 Qd1-b3 b7-b6 Qb3-a4 a7-a5 Qa4-c4 c7-c6 Qc4-d4 Ke8-f8 Qd4xd7
12/12 00:00 390k 18,548k +33.05 c2-c3 h7-h6 Qd1-b3 b7-b6 Ng1-f3 e7-e6 Qb3-a4 a7-a5 Nf3-e5 c7-c6 Qa4-d4 d7-d6
13/17 00:00 716k 19,891k +33.25 c2-c3 b7-b5 Qd1-b3 c7-c6 Qb3-a3 f7-f6 Qa3xa7 g7-g6 Ng1-f3 d7-d5 g2-g3 h7-h5
14/19 00:00 941k 19,202k +33.33 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 a6-a5 Qb7-a7 Ke8-e7 Qa7-c5+ Ke7-d8 Qc5xa5+ Kd8-c8
15/21 00:00 1,722k 17,938k +33.59 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 g7-g6 Qb7xa6 Ke8-e7 Qa6-c8 g6-g5 Qc8-h8
16/23 00:00 3,632k 18,345k +33.79 c2-c3 e7-e6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 d7-d5 Qa7xb7 Ke8-d7 Qb7xa6 h7-h5 Ng1-f3 Kd7-e7 Qa6-b7
17/21 00:00 7,656k 18,997k +34.01 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b5 Qa7xa6 Ke8-d8 Qa6-a8+ Kd8-c7 Qa8-f8 Kc7-d6 Qf8xg7 h7-h5 Qg7-h8 Kd6-c7 Qh8xh5
18/24 00:00 16,021k 19,420k +34.25 c2-c3 a7-a6 Qd1-b3 b7-b5 Qb3-a3 c7-c6 Qa3xa6 e7-e5 Qa6-c8+ Ke8-e7 Qc8-h8 h7-h5 Qh8xg7 d7-d6 Ng1-f3 h5-h4 Nf3xh4 Ke7-e8
19/28 00:01 28,969k 19,640k +34.40 c2-c3 h7-h6 Qd1-a4 a7-a6 Qa4-d4 d7-d6 Qd4xg7 e7-e5 Qg7-g8+ Ke8-d7 Qg8xf7+ Kd7-c6 Ng1-f3 b7-b6 d2-d3 Kc6-b7 Bc1xh6 Kb7-c6 Qf7-e8+ Kc6-b7 Qe8-d7
20/28 00:02 54,957k 19,613k +34.62 c2-c3 a7-a6 Qd1-b3 b7-b6 Qb3-c4 e7-e6 Qc4xc7 b6-b5 Qc7-c8+ Ke8-e7 Qc8xa6 b5-b4 c3xb4 d7-d5 Qa6-b6 g7-g6 Qb6-c5+ Ke7-f6 Qc5-d4+ Kf6-e7 Qd4-h8 h7-h5
21/28 00:03 72,033k 19,649k +34.70 c2-c3 e7-e6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b6 Qa7-b8+ Ke8-e7 Qb8xc7 b6-b5 Qc7-c5+ Ke7-d8 Qc5-b6+ Kd8-e7 Qb6xa6 b5-b4 c3xb4 h7-h5 Qa6-c4 g7-g6 Qc4-c8 e6-e5 Nb1-c3 Ke7-f7 Qc8xd7+ Kf7-f8
22/25+ 00:04 83,913k 19,652k +34.78 c2-c3
22/25+ 00:05 102,093k 19,629k +34.87 c2-c3
22/32 00:06 125,120k 19,645k +34.95 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 Ke8-e7 Qb7xa6 h7-h6 Qa6-a3+ Ke7-f7 Qa3-d6 Kf7-e8 Qd6-b8+ Ke8-f7 Qb8-d8 d7-d5 Qd8-d7+ Kf7-f8 e2-e3
23/28 00:07 155,499k 19,621k +34.98 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 Ke8-e7 Qb7xa6 h7-h6 Qa6-a3+ Ke7-f7 Qa3-d6 Kf7-e8 Qd6-b8+ Ke8-f7 Qb8-d8 d7-d5 Qd8-d7+ Kf7-f8 e2-e3 Kf8-g8 Qd7-e8+ Kg8-h7 Qe8xc6 d5-d4
24/7+ 00:09 176,955k 19,585k +35.06 c2-c3
24/32+ 00:11 218,487k 19,576k +35.14 c2-c3
24/32 00:13 254,179k 19,534k +35.23 c2-c3 b7-b5 Qd1-b3 c7-c6 Qb3-a3 f7-f6 Qa3xa7 e7-e5 Qa7-a8+ Ke8-f7 Qa8-d8 d7-d5 Qd8-d7+ Kf7-f8 Qd7-d6+ Kf8-f7 Qd6xc6 d5-d4 c3xd4 e5xd4 Ng1-f3 d4-d3 e2-e3 g7-g6 Qc6-d7+ Kf7-g8 Bf1xd3 b5-b4 Qd7-e6+ Kg8-g7
25/38+ 00:16 327,408k 19,502k +35.31 c2-c3
25/38+ 00:19 384,685k 19,465k +35.39 c2-c3
25/38 00:22 433,706k 19,467k +35.44 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e6 Qa7xb7 Ke8-e7 Qb7-b4+ Ke7-f7 Qb4-d6 Kf7-e8 Qd6-b8+ Ke8-e7 Qb8-h8 g7-g5 Qh8xh7+ Ke7-d6 Qh7-g7 g5-g4 Qg7xf6 Kd6-c7 Qf6-g7 a6-a5 Qg7xg4 Kc7-b7 Ng1-f3 Kb7-c8
26/36+ 00:27 541,457k 19,440k +35.52 c2-c3
26/36+ 00:32 624,007k 19,439k +35.60 c2-c3
26/40 00:36 703,597k 19,456k +35.69 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 Ke8-e7 Qb7xa6 g7-g5 Qa6-d3 h7-h6 Qd3-h7+ Ke7-e6 Qh7xh6 d7-d5 Ng1-f3 Ke6-f7 Qh6-h7+ Kf7-f8 Qh7-g6 Kf8-e7 Qg6-g8 d5-d4 Qg8-g7+ Ke7-e6 Qg7-g6 d4xc3
27/25+ 00:45 870,833k 19,347k +35.77 c2-c3
27/38+ 00:52 1,018,821k 19,265k +35.86 c2-c3
27/38 00:57 1,112,569k 19,211k +35.93 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e6 Qa7xb7 Ke8-e7 Qb7-b4+ Ke7-f7 Qb4-d6 Kf7-e8 Qd6-b8+ Ke8-e7 Qb8-h8 g7-g5 Qh8xh7+ Ke7-d6 Qh7-f7 g5-g4 Qf7xf6 a6-a5 Qf6-g5 Kd6-c7 Qg5xg4 Kc7-b7 Qg4-g5 Kb7-a6 Qg5-d8
28/42+ 01:08 1,315,112k 19,081k +36.01 c2-c3
28/42 01:15 1,431,999k 19,057k +36.03 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e6 Qa7xb7 Ke8-e7 Qb7-b4+ Ke7-f7 Qb4-d6 Kf7-e8 Qd6-b8+ Ke8-e7 Qb8-h8 g7-g5 Qh8xh7+ Ke7-d6 Qh7-f7 Kd6-c7 Qf7xf6 g5-g4 Qf6-f4+ Kc7-b7 Qf4xg4 c6-c5 Qg4-g5 Kb7-c6 Qg5-e7 e6-e5 Qe7xe5 d7-d6
29/40 01:30 1,709,648k 18,992k +36.11 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b6 Qa7xb6 e7-e5 Qb6-b7 h7-h6 Qb7xa6 Ke8-f7 Qa6-b7 Kf7-e6 Qb7-b8 Ke6-e7 Qb8-c8 e5-e4 Qc8-g8 g7-g5 Qg8-h7+ Ke7-e6 Qh7xe4+ Ke6-d6 Qe4-g6 Kd6-e7 Qg6-h7+ Ke7-e6 Qh7xh6 g5-g4 Qh6-e3+ Ke6-f7 Qe3-d4 d7-d5 Qd4xg4 d5-d4 Qg4-d7+ Kf7-g8
30/38+ 01:45 2,003,154k 18,964k +36.19 c2-c3
30/38+ 02:02 2,313,281k 18,958k +36.27 c2-c3
30/40+ 02:17 2,611,014k 18,976k +36.39 c2-c3
30/40 02:19 2,645,194k 18,977k +36.45 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b6 Qa7xb6 e7-e5 Qb6xa6 h7-h6 Qa6-a8+ Ke8-e7 Qa8-h8 g7-g5 Qh8-g7+ Ke7-e6 Qg7xh6 g5-g4 Qh6-h7 d7-d5 Qh7-g8+ Ke6-d6 Qg8-g6 Kd6-e7 Qg6-g7+ Ke7-e8 Qg7xf6 Ke8-d7 Qf6-f5+ Kd7-c7 Qf5xg4 Kc7-b6
31/17+ 02:30 2,850,589k 18,935k +36.53 c2-c3
31/23+ 02:42 3,085,385k 18,941k +36.62 c2-c3
31/47+ 03:20 3,798,342k 18,939k +36.92 c2-c3
31/47 03:51 4,387,035k 18,964k +37.06 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b5 Qa7xa6 e7-e6 Qa6-c8+ Ke8-e7 Qc8-g8 g7-g5 Qg8-g7+ Ke7-d6 Qg7xf6 g5-g4 Qf6-f4+ e6-e5 Qf4xg4 Kd6-c7 Ng1-f3 d7-d6 Qg4-g7+ Kc7-d8 Qg7xh7 c6-c5 Qh7-a7 b5-b4 Nf3-g5 c5-c4 c3xb4 d6-d5 Ng5-f7+ Kd8-e8 Nf7xe5
32/33+ 04:12 4,802,924k 19,016k +37.14 c2-c3
32/33+ 04:25 5,050,258k 19,037k +37.23 c2-c3
32/33+ 04:42 5,390,321k 19,101k +37.53 c2-c3
32/38 04:46 5,475,138k 19,136k +37.62 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 Ke8-e7 Qb7xa6 h7-h5 Qa6-a8 g7-g5 Qa8-h8 Ke7-f7 Qh8xh5+ Kf7-e6 Qh5-h7 e5-e4 Qh7xe4+ Ke6-f7 Qe4-d3 Kf7-e7 Qd3-h7+ Ke7-e6 Qh7-g7 g5-g4 Qg7xg4+ Ke6-d6 Qg4-e4 f6-f5 Qe4-f4+ Kd6-e6 Ng1-f3
33/29+ 05:09 5,965,634k 19,251k +37.70 c2-c3
33/29+ 05:18 6,149,345k 19,303k +37.78 c2-c3
33/43+ 06:16 7,405,962k 19,651k +38.33 c2-c3
33/44 06:40 7,934,280k 19,792k +38.51 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 h7-h5 Qb7xa6 Ke8-d8 Qa6-b6+ Kd8-e7 Qb6-b4+ Ke7-f7 Qb4-b7 Kf7-e6 Qb7-b8 Ke6-f7 Qb8-c8 Kf7-e7 Qc8-g8 g7-g5 Qg8-h7+ Ke7-d8 Qh7-f7 e5-e4 Qf7xf6+ Kd8-c7 Qf6xg5 h5-h4 Qg5-f4+ d7-d6 Qf4xe4 c6-c5 Qe4-e7+ Kc7-c6 Qe7xh4 Kc6-b6 Qh4-d8+ Kb6-c6 Qd8-e8+ Kc6-b7 Qe8-d7+ Kb7-a8
34/44+ 07:12 8,602,693k 19,898k +38.59 c2-c3
34/44+ 07:27 8,943,609k 19,970k +38.67 c2-c3
34/44+ 08:52 10,870,686k 20,417k +39.98 c2-c3
34/44 09:13 11,363,950k 20,518k +40.52 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 g7-g5 Qb7xa6 Ke8-e7 Qa6-d3 h7-h5 Qd3-h7+ Ke7-e6 Qh7xh5 Ke6-e7 Qh5-h7+ Ke7-e6 Qh7-g7 g5-g4 Qg7xg4+ Ke6-d6 Qg4-g6 Kd6-e7 Qg6-g7+ Ke7-e6 Ng1-f3 d7-d5 Qg7-c7 d5-d4 c3xd4 c6-c5 Qc7xc5 e5-e4 Nf3-h4
35/44+ 09:56 12,321,173k 20,663k +40.61 c2-c3
35/44+ 10:03 12,479,292k 20,669k +40.69 c2-c3
35/44+ 11:32 14,530,020k 20,988k +42.56 c2-c3
35/44 11:42 14,780,435k 21,029k +42.71 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b6 Qa7xb6 h7-h5 Qb6xa6 e7-e5 Qa6-c8+ Ke8-e7 Qc8-a8 e5-e4 Qa8-g8 g7-g5 Qg8-h7+ Ke7-f8 Qh7-g6 Kf8-e7 Qg6xe4+ Ke7-d8 Qe4-g6 Kd8-e7 Qg6-h7+ Ke7-d6 Qh7xh5 Kd6-e7 Qh5-h7+ Ke7-e8 Qh7-g7 d7-d6 Qg7xf6 Ke8-d7 Qf6-f7+ Kd7-d8 Qf7-f5 g5-g4 Qf5-f8+ Kd8-d7
36/11+ 12:01 15,202,446k 21,067k +42.79 c2-c3
36/19+ 12:13 15,480,033k 21,099k +42.87 c2-c3
36/48+ 14:06 18,036,537k 21,312k +46.39 c2-c3
36/48 15:57 20,571,161k 21,481k +47.35 c2-c3 e7-e6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 c7-c6 Qa7xb7 g7-g5 Qb7-c8+ Ke8-e7 Qc8-g8 Ke7-d6 Qg8-f8+ Kd6-c7 Qf8xf6 g5-g4 Qf6-f4+ e6-e5 Qf4xe5+ Kc7-c8 Qe5-h8+ Kc8-b7 Qh8-d4 Kb7-c7 Qd4xg4 c6-c5 Qg4-f5 h7-h5 Qf5xc5+ Kc7-d8 Qc5xh5 Kd8-c7 Qh5-c5+ Kc7-b7 Qc5-d6 Kb7-c8 Qd6xa6+ Kc8-c7
37/48+ 16:18 21,031,715k 21,489k +47.43 c2-c3
37/48+ 16:33 21,364,865k 21,511k +47.51 c2-c3
37/48+ 17:30 22,731,376k 21,647k +48.38 c2-c3
37/48 17:32 22,784,696k 21,654k +48.39 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b5 Qa7xa6 Ke8-d8 Qa6-b7 e7-e6 Qb7-b8+ Kd8-e7 Qb8-g8 g7-g5 Qg8-g7+ Ke7-d6 Qg7xf6 b5-b4 c3xb4 g5-g4 Qf6-f4+ e6-e5 Qf4xg4 h7-h6 Qg4-g6+ Kd6-e7 Qg6-g7+ Ke7-e6 Qg7xh6+ Ke6-f7 Qh6-h5+ Kf7-f6 Qh5-h4+ Kf6-e6 Qh4-g5 e5-e4 Qg5-g6+ Ke6-e7 Qg6-f5
38/51+ 17:36 22,903,605k 21,670k +48.47 c2-c3
38/51+ 17:39 22,955,758k 21,676k +48.55 c2-c3
38/51+ 17:53 23,299,579k 21,712k +48.86 c2-c3
38/51 18:02 23,518,642k 21,732k +49.03 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 e5-e4 Qb7xa6 h7-h5 Qa6-c8+ Ke8-e7 Qc8-g8 g7-g5 Qg8-h7+ Ke7-d6 Qh7xh5 e4-e3 f2xe3 Kd6-e7 Qh5-h7+ Ke7-e6 Qh7-g7 c6-c5 Ng1-f3 g5-g4 Qg7xg4+ Ke6-d6 Qg4-g7 Kd6-c7 Qg7xf6 d7-d6 Nf3-g1 Kc7-b7 Qf6-e7+ Kb7-c8 Qe7-e8+ Kc8-c7
39/46+ 18:05 23,595,334k 21,737k +49.11 c2-c3
39/46+ 18:07 23,635,651k 21,742k +49.19 c2-c3
39/46+ 18:22 24,005,904k 21,776k +50.50 c2-c3
39/46 18:27 24,110,531k 21,778k +50.70 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 Ke8-e7 Qb7xa6 h7-h5 Qa6-a3+ Ke7-f7 Qa3-d6 Kf7-e8 Ng1-f3 Ke8-d8 Qd6-b8+ Kd8-e7 Qb8-g8 e5-e4 Qg8xg7+ Ke7-e8 Qg7-g6+ Ke8-e7 Qg6xe4+ Ke7-f7 Qe4-h7+ Kf7-e6 Qh7xh5 Ke6-e7 Nf3-g1 d7-d5 Qh5-h7+ Ke7-f8 Qh7-g6 Kf8-e7 Qg6-g7+ Ke7-e6 Qg7-g4+ Ke6-d6
40/43+ 18:28 24,140,452k 21,779k +50.78 c2-c3
40/46+ 18:29 24,171,550k 21,782k +50.86 c2-c3
40/46+ 18:41 24,430,804k 21,792k +52.75 c2-c3
40/46- 18:42 24,461,144k 21,789k +50.55 c2-c3 b7-b5
40/48+ 18:43 24,482,323k 21,789k +52.04 c2-c3
40/48+ 19:13 25,077,265k 21,739k +65.82 c2-c3
40/48 19:16 25,128,102k 21,734k +62.68 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 Ke8-e7 Qb7xa6 h7-h5 Qa6-c4 Ke7-f8 Qc4-b4+ Kf8-e8 Qb4-b8+ Ke8-e7 Qb8-g8 g7-g5 Qg8-h8 Ke7-f7 Qh8xh5+ Kf7-e7 Qh5-g6 e5-e4 Qg6-h7+ Ke7-e8 Qh7-g7 c6-c5 Qg7xf6 e4-e3 d2xe3 g5-g4 Qf6-h8+ Ke8-e7 Qh8-g7+ Ke7-d8 Qg7-g5+ Kd8-c8 Qg5xc5+ Kc8-b8 Qc5-e5+ Kb8-b7
41/49+ 19:22 25,257,409k 21,726k +62.76 c2-c3
41/54+ 19:22 25,258,147k 21,726k +62.84 c2-c3
41/54+ 19:30 25,426,740k 21,719k +65.74 c2-c3
41/54- 19:35 25,531,346k 21,720k +62.52 c2-c3 c7-c6
41/54+ 19:37 25,564,071k 21,719k +64.63 c2-c3
41/55+ 20:14 26,349,028k 21,700k +77.23 c2-c3
41/55 20:27 26,629,148k 21,702k +76.68 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 e7-e5 Qa7xb7 h7-h5 Qb7xa6 Ke8-e7 Qa6-c8 e5-e4 Qc8-h8 Ke7-f7 Qh8-d8 Kf7-e6 Qd8-g8+ Ke6-d6 Qg8xg7 Kd6-e6 Qg7-h6 Ke6-e7 Qh6-g6 e4-e3 Qg6-g7+ Ke7-e6 d2xe3 c6-c5 Qg7-h8 h5-h4 Qh8xh4 Ke6-e7 Qh4-h7+ Ke7-e6 Qh7-g6 Ke6-e5
42/44+ 20:32 26,740,022k 21,703k +76.76 c2-c3
42/44+ 20:32 26,743,145k 21,703k +76.87 c2-c3
42/47+ 20:43 26,989,077k 21,702k +79.51 c2-c3
42/47 20:53 27,221,742k 21,712k +80.17 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b6 Qa7-b8+ Ke8-f7 Qb8xb6 e7-e5 Qb6-d8 Kf7-e6 Qd8-g8+ Ke6-d6 Qg8xg7 Kd6-c7 Qg7xf6 e5-e4 Qf6-e5+ Kc7-b7 Qe5xe4 Kb7-b8 Qe4xh7 Kb8-c7 Qh7-f5 Kc7-d8 Qf5-g5+ Kd8-e8 Qg5-e5+ Ke8-d8 Qe5-b8+ Kd8-e7 Ng1-f3 a6-a5 d2-d3 c6-c5 Nf3-e5
43/48+ 21:00 27,375,793k 21,713k +80.25 c2-c3
43/49+ 21:03 27,443,927k 21,716k +80.33 c2-c3
43/53+ 21:19 27,791,392k 21,722k +82.20 c2-c3
43/53 21:34 28,125,459k 21,732k +82.36 c2-c3 b7-b6 Qd1-a4 a7-a5 Qa4-d4 b6-b5 Qd4-a7 e7-e6 Qa7xa5 c7-c6 Qa5-a7 g7-g5 Qa7-d4 b5-b4 c3xb4 g5-g4 Qd4xg4 Ke8-f8 Qg4-h5 c6-c5 Qh5xc5+ Kf8-e8 Qc5-g5 d7-d6 Qg5-f6 d6-d5 Ng1-f3 e6-e5 Qf6xe5+ Ke8-f8 Qe5-d6+ Kf8-g7 Qd6-e7 h7-h5 Qe7-e5+ Kg7-g8 Qe5-g5+ Kg8-f8 Qg5xd5 Kf8-g8 Qd5-d8+ Kg8-h7
44/37+ 21:36 28,178,359k 21,734k +82.44 c2-c3
44/43+ 21:36 28,187,496k 21,735k +82.52 c2-c3
44/48+ 22:08 28,887,086k 21,749k +85.14 c2-c3
44/48 22:14 29,028,466k 21,750k +85.17 c2-c3 b7-b5 Qd1-b3 c7-c6 Qb3-a3 a7-a5 Qa3xa5 e7-e6 Qa5-a7 g7-g5 Qa7-d4 Ke8-e7 Qd4-c5+ Ke7-e8 Qc5xg5 d7-d6 Ng1-f3 h7-h6 Qg5-g8+ Ke8-e7 Qg8-b8 b5-b4 Qb8xb4 c6-c5 Qb4-b8 c5-c4 Qb8-c7+ Ke7-f6 Qc7-d8+ Kf6-g6 Qd8xd6 f7-f5 Qd6xe6+ Kg6-g7 Nf3-g1 h6-h5 Qe6xc4 Kg7-f6 Qc4-c6+ Kf6-g7 Qc6-c7+ Kg7-g6
45/60+ 22:21 29,174,655k 21,751k +85.25 c2-c3
45/60+ 22:21 29,180,205k 21,751k +85.34 c2-c3
45/60+ 22:46 29,780,829k 21,787k +87.21 c2-c3
45/60 22:52 29,907,171k 21,783k +87.69 c2-c3 b7-b5 Qd1-b3 c7-c6 Qb3-a3 a7-a5 Qa3xa5 e7-e6 Qa5-a7 g7-g5 Qa7-d4 Ke8-e7 Qd4-c5+ Ke7-e8 Qc5xg5 d7-d6 Ng1-f3 h7-h6 Qg5-g8+ Ke8-e7 Qg8-b8 b5-b4 Qb8xb4 c6-c5 Qb4-b8 Ke7-d7 Qb8-b7+ Kd7-e8 Qb7-c6+ Ke8-e7 Qc6-c7+ Ke7-e8 Qc7xd6 e6-e5 Qd6xe5+ Ke8-f8 Qe5xc5+ Kf8-g8 Qc5-c8+ Kg8-h7 Qc8-f5+ Kh7-g7 Qf5-e5+ Kg7-f8 Nf3-d4 h6-h5 Qe5-c5+ Kf8-g7 Qc5-g5+ Kg7-f8 Qg5-d8+ Kf8-g7
46/59+ 22:55 29,953,224k 21,779k +87.77 c2-c3
46/59+ 22:58 30,029,135k 21,785k +87.86 c2-c3
46/62+ 24:09 31,735,283k 21,891k +90.45 c2-c3
46/62 24:21 32,034,703k 21,914k +90.47 c2-c3 b7-b5 Qd1-b3 c7-c6 Qb3-a3 a7-a5 Qa3xa5 e7-e6 Qa5-a7 g7-g5 Qa7-d4 Ke8-e7 Qd4-c5+ Ke7-e8 Qc5xg5 d7-d6 Ng1-f3 h7-h6 Qg5-g8+ Ke8-e7 Qg8-b8 b5-b4 Qb8xb4 c6-c5 Qb4-b8 Ke7-d7 Qb8-b7+ Kd7-e8 Qb7-c6+ Ke8-e7 Qc6-c7+ Ke7-f8 Qc7xd6+ Kf8-g8 Qd6-e7 f7-f5 Qe7xe6+ Kg8-g7 Qe6-e7+ Kg7-h8 Qe7-f8+ Kh8-h7 Qf8xf5+ Kh7-g7 Qf5-d7+ Kg7-h8 Qd7-d8+ Kh8-g7 Qd8-e7+ Kg7-g8
47/48+ 24:25 32,122,513k 21,916k +90.55 c2-c3
47/58+ 24:31 32,274,043k 21,932k +90.63 c2-c3
47/60+ 26:15 34,774,839k 22,079k +94.15 c2-c3
47/60 27:04 36,001,005k 22,157k +94.19 c2-c3 b7-b5 Qd1-b3 c7-c6 Qb3-a3 a7-a5 Qa3xa5 e7-e6 Qa5-a7 g7-g5 Qa7-d4 Ke8-e7 Qd4-c5+ Ke7-e8 Qc5xg5 d7-d6 Ng1-f3 h7-h6 Qg5-f4 Ke8-e7 Qf4xh6 b5-b4 Qh6-h4+ Ke7-d7 Qh4-h7 c6-c5 c3xb4 Kd7-c6 b4xc5 d6xc5 Qh7xf7 Kc6-d6 Qf7-f8+ Kd6-c6 Qf8-e8+ Kc6-d6 Qe8-d8+ Kd6-c6 Nf3-e5+ Kc6-b7 Qd8-d7+ Kb7-b8 Qd7-b5+ Kb8-a8 Qb5-c6+ Ka8-b8
48/61+ 27:10 36,136,946k 22,164k +94.27 c2-c3
48/65+ 27:18 36,344,439k 22,178k +94.36 c2-c3
48/65+ 30:50 41,663,825k 22,516k +102.50 c2-c3
48/65 30:56 41,799,759k 22,516k +101.92 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b5 Qa7xa6 Ke8-d8 Qa6-b6+ Kd8-e8 Qb6-a7 e7-e5 Qa7-a8+ Ke8-f7 Qa8-c8 Kf7-e6 Qc8-g8+ Ke6-d6 Qg8xg7 Kd6-c7 Qg7xf6 e5-e4 Qf6-f5 Kc7-d8 Qf5xh7 b5-b4 c3xb4 e4-e3 Qh7-h8+ Kd8-e7 Qh8-e5+ Ke7-f7 Qe5xe3 c6-c5 Qe3-f4+ Kf7-e6 Qf4-h6+ Ke6-e7 b4xc5 Ke7-f7 Qh6-f4+ Kf7-g7 Qf4-e5+ Kg7-g6
49/62+ 31:17 42,298,324k 22,525k +102.00 c2-c3
49/72+ 31:20 42,360,252k 22,527k +102.08 c2-c3
49/72+ 35:55 48,800,178k 22,638k +115.62 c2-c3
49/72 35:57 48,835,639k 22,637k +115.82 c2-c3 b7-b5 Qd1-b3 c7-c6 Qb3-a3 g7-g5 Qa3xa7 e7-e6 Qa7-d4 Ke8-e7 Qd4-c5+ Ke7-e8 Qc5xg5 d7-d6 Ng1-f3 h7-h6 Qg5-g8+ Ke8-e7 Qg8-b8 b5-b4 Qb8xb4 c6-c5 Qb4-b7+ Ke7-f6 Qb7-b6 c5-c4 Qb6-d8+ Kf6-g6 Qd8xd6 Kg6-g7 Qd6-e7 h6-h5 Qe7-g5+ Kg7-h7 Qg5xh5+ Kh7-g8 Qh5-g5+ Kg8-h7 Qg5-f6 Kh7-g8 Nf3-e5
50/46+ 36:16 49,248,128k 22,632k +115.90 c2-c3
50/46+ 36:25 49,463,594k 22,630k +115.99 c2-c3
50/48+ 38:04 51,608,064k 22,592k +130.22 c2-c3
50/48 38:37 52,365,903k 22,598k +132.84 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b5 Qa7xa6 e7-e5 Qa6-c8+ Ke8-e7 Qc8-g8 g7-g5 Qg8xh7+ Ke7-e6 Qh7-g8+ Ke6-d6 Qg8-f7 Kd6-c7 Qf7xf6 e5-e4 Qf6xg5 b5-b4 c3xb4 Kc7-d6 Qg5-f4+ Kd6-e7 Qf4-e5+ Ke7-f7 Qe5xe4 Kf7-f6 Qe4-d4+ Kf6-e6 Qd4-g4+ Ke6-e7 Qg4-h4+ Ke7-e6 Ng1-f3 c6-c5 Qh4-h6+ Ke6-e7 Qh6-g7+ Ke7-e6 Qg7-g8+ Ke6-d6
51/44+ 38:57 52,813,920k 22,590k +132.92 c2-c3
51/44+ 39:05 52,980,125k 22,592k +133.00 c2-c3
51/52+ 41:59 57,093,088k 22,661k +150.54 c2-c3
51/52 42:15 57,468,840k 22,668k +152.65 c2-c3 c7-c6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b5 Qa7xa6 e7-e5 Qa6-c8+ Ke8-e7 Qc8-g8 g7-g5 Qg8xh7+ Ke7-e6 Qh7-g8+ Ke6-d6 Qg8-f7 f6-f5 Qf7xf5 e5-e4 Qf5-f6+ Kd6-c7 Qf6-e5+ Kc7-b7 Qe5xg5 Kb7-c8 Qg5-e5 b5-b4 c3xb4 Kc8-d8 Qe5xe4 Kd8-c7 Qe4-e8 d7-d6 Qe8-e7+ Kc7-b6 d2-d4 Kb6-a6 Qe7xd6
52/60+ 43:29 59,218,044k 22,693k +M83 c2-c3
52/62+ 43:46 59,573,585k 22,684k +M74 c2-c3
52/62+ 44:21 60,303,731k 22,659k +M42 c2-c3
52/62 52:45 68,746,686k 21,714k +M18 c2-c3 e7-e6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 b7-b5 Qa7xa6 Ke8-e7 Qa6xb5 c7-c6 Qb5-b4+ Ke7-e8 Qb4-d6 h7-h5 b2-b3 c6-c5 Bc1-a3 h5-h4 Ba3xc5 Ke8-f7 Qd6xd7+ Kf7-g8 Qd7xe6+ Kg8-h7 Qe6-f7 f6-f5 Bc5-f8 Kh7-h6 Qf7xg7+ Kh6-h5 g2-g4+ f5xg4 Qg7-h6+
53/34 1:06:36 82,377,416k 20,613k +M17 c2-c3 e7-e6 Qd1-a4 a7-a6 Qa4-d4 f7-f6 Qd4-a7 h7-h5 Qa7xb7 Ke8-d8 Qb7-b8+ Kd8-e7 Qb8xc7 h5-h4 e2-e3 h4-h3 Ng1xh3 Ke7-e8 Bf1xa6 Ke8-e7 Ba6-b5 Ke7-f7 Qc7xd7+ Kf7-g6 Bb5-d3+ Kg6-h6 Qd7xe6 g7-g6 Qe6xf6 Kh6-h7 Qf6xg6+ Kh7-h8 Qg6-h7+

tested older version and it is clearly faster in finding mate and also can find a faster mate.

FEN: 4k3/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1

Stockfish_20060117_x64_bmi2:
1/1 00:00 349 175k +44.43 Nb1-c3
2/2 00:00 726 363k +44.32 Nb1-c3 e7-e6
3/3 00:00 1k 598k +44.46 Nb1-c3 Ke8-f8 Nc3-d5
4/4 00:00 2k 1,061k +44.62 Nb1-c3 e7-e6 Ra1-b1
5/5 00:00 7k 3,276k +44.77 Ng1-f3 f7-f6 Nb1-c3 Ke8-f7
6/6 00:00 11k 5,354k +44.99 Ng1-f3 f7-f6 Nb1-c3 Ke8-f7 Nc3-d5
7/7 00:00 24k 8,129k +45.03 Ng1-f3 Ke8-f8 Nb1-c3 c7-c6 d2-d3 f7-f6 Nc3-e4
8/9 00:00 65k 12,951k +45.02 Ng1-f3 Ke8-f8 e2-e3 f7-f6 Nb1-c3 c7-c6 Nf3-d4 e7-e6
9/10 00:00 136k 15,167k +45.15 Ng1-f3 f7-f6 Nb1-c3 c7-c6 e2-e3 Ke8-f7 Bf1-d3 h7-h6 O-O
10/14 00:00 212k 16,318k +45.17 Ng1-f3 f7-f6 Nb1-c3 c7-c6 e2-e3 Ke8-f8 Bf1-d3 h7-h6 Nc3-e2 g7-g5 O-O Kf8-g7 Rf1-e1
11/15 00:00 326k 18,131k +45.22 Ng1-f3 f7-f6 Nb1-c3 c7-c6 d2-d3 Ke8-f7 Bc1-e3 a7-a6 Qd1-d2 e7-e5 O-O-O d7-d5 Kc1-b1 Kf7-g6
12/20 00:00 547k 18,237k +45.17 e2-e3 g7-g6 Bf1-e2 c7-c6 Ng1-f3 f7-f6 d2-d3 Ke8-f8 h2-h3 h7-h5 O-O d7-d5 Nb1-c3 e7-e5 Bc1-d2
13/17 00:00 751k 19,260k +45.60 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 e7-e6 Qh3xh7 d6-d5 Ng1-f3 Ke8-f8 Nb1-c3
14/18 00:00 1,241k 20,349k +46.13 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 e7-e6 Qh3xh7 Ke8-e7 Qh7-h8 g6-g5 Qh8-b8 Ke7-f6 Qb8xd6
15/19 00:00 1,957k 20,600k +46.38 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 e7-e6 Qh3xh7 Ke8-e7 Ng1-f3 c6-c5 Nf3-g5 Ke7-f6 Ng5xf7
16/23 00:00 4,022k 21,392k +46.80 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f6 Qh7xg6 b7-b5 Ng1-f3 Kd8-d7 Nb1-c3
17/22 00:00 8,126k 21,728k +47.12 e2-e3 e7-e6 Qd1-g4 g7-g6 Qg4-f4 c7-c6 Qf4-b8+ Ke8-e7 Qb8xb7 h7-h5 Qb7xa7 f7-f6 Nb1-c3 f6-f5 Ng1-f3 Ke7-d6 Bf1-d3 Kd6-e7 O-O
18/24 00:00 14,713k 21,417k +47.38 e2-e3 e7-e6 Qd1-g4 g7-g6 Qg4-f4 c7-c6 Qf4-b8+ Ke8-e7 Qb8xb7 h7-h5 Qb7xa7 Ke7-e8 Nb1-c3 g6-g5 Nc3-e4 g5-g4 Ne4-f6+ Ke8-f8 Nf6xd7+ Kf8-g7
19/27 00:00 20,502k 21,027k +47.37 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f6 Qh7xg6 Kd8-d7 Qg6-g8 d6-d5 Ng1-f3 Kd7-c7 Qg8-f8 e7-e5 Qf8xf6 e5-e4 Nf3-e5
20/28 00:01 35,737k 21,196k +47.87 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f6 Qh7xg6 d6-d5 Qg6-g8+ Kd8-c7 Qg8-f7 Kc7-d8 Ng1-f3 b7-b6 Nf3-d4 c6-c5 Nd4-c6+ Kd8-c7 Nc6xe7
21/25 00:03 63,345k 21,080k +48.13 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 e7-e6 Qg3-b8+ Ke8-e7 Qb8xb7 g6-g5 Qb7xa7 g5-g4 Qa7-c5+ Ke7-e8 Qc5-h5 Ke8-f8 Qh5xh7 d7-d5 Nb1-c3 c6-c5 Bf1-b5 d5-d4
22/28+ 00:03 72,816k 20,948k +48.23 e2-e3
22/28+ 00:03 79,367k 20,947k +48.33 e2-e3
22/30+ 00:05 106,720k 20,832k +48.48 e2-e3
22/30 00:05 108,855k 20,817k +48.57 e2-e3 e7-e6 Qd1-g4 g7-g6 Qg4-f4 d7-d6 Qf4-a4+ Ke8-f8 Qa4xa7 Kf8-g7 Qa7xb7 c7-c5 Qb7-c7 d6-d5 Qc7xc5 h7-h5 Ng1-f3 Kg7-f6 Qc5-c7 h5-h4
23/30 00:05 119,156k 20,698k +48.59 e2-e3 e7-e6 Qd1-g4 g7-g6 Qg4-f4 d7-d6 Qf4-a4+ Ke8-f8 Qa4xa7 Kf8-g7 Qa7xb7 c7-c5 Qb7-b6 d6-d5 Qb6xc5 g6-g5 Qc5-e7 g5-g4 Qe7-g5+ Kg7-f8 Qg5xg4 h7-h6 Ng1-f3 Kf8-e8 Nf3-e5
24/27+ 00:06 130,354k 20,678k +48.69 e2-e3
24/27 00:06 132,018k 20,670k +48.71 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d7 Qh7xg6 f5-f4 e3xf4 a7-a6 Ng1-f3 Kd7-c7 Qg6-e6 Kc7-d8 Nf3-g5 b7-b5 Nb1-c3 c6-c5 Ng5-f7+ Kd8-e8
25/26+ 00:06 142,389k 20,615k +48.81 e2-e3
25/27 00:07 157,586k 20,551k +48.89 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d7 Qh7xg6 f5-f4 e3xf4 a7-a6 Ng1-f3 e7-e5 f4xe5 d6xe5 Qg6-f5+ Kd7-d8 Qf5xe5 Kd8-d7 Bf1-d3 a6-a5 Bd3-f5+ Kd7-d8
26/29+ 00:08 171,751k 20,515k +49.00 e2-e3
26/29+ 00:09 198,641k 20,432k +49.10 e2-e3
26/30 00:10 220,618k 20,373k +49.16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f6 Qh7-h8+ Kd8-d7 Qh8-b8 Kd7-e6 Qb8xb7 f6-f5 Bf1-c4+ Ke6-f6 Ng1-f3 f5-f4 e3xf4 a7-a5 Qb7xc6 Kf6-g7 O-O Kg7-f6 Qc6-d7
27/31+ 00:12 244,745k 20,319k +49.26 e2-e3
27/31 00:13 271,690k 20,217k +49.35 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f5 Qh7xg6 f5-f4 e3xf4 a7-a6 Qg6-e6 a6-a5 Ng1-f3 a5-a4 Nf3-d4 d6-d5 Bf1-d3 a4-a3 Nb1xa3 Kd8-c7 Qe6xe7+ Kc7-b6 Bd3-f5
28/29+ 00:14 298,828k 20,176k +49.46 e2-e3
28/32+ 00:16 332,621k 20,137k +49.56 e2-e3
28/32 00:17 353,142k 20,100k +49.62 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f5 Qh7xg6 f5-f4 e3xf4 a7-a6 Qg6-e6 a6-a5 Ng1-f3 a5-a4 Nf3-d4 d6-d5 Bf1-d3 Kd8-c7 Qe6xe7+ Kc7-b8 O-O a4-a3 Qe7-d6+ Kb8-a7 Qd6xa3+ Ka7-b8
29/32+ 00:18 378,843k 20,067k +49.72 e2-e3
29/32+ 00:20 407,988k 20,030k +49.83 e2-e3
29/32 00:21 433,046k 19,986k +49.89 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f5 Qh7xg6 f5-f4 e3xf4 Kd8-d7 Ng1-f3 a7-a6 Qg6-f7 a6-a5 Bf1-d3 Kd7-d8 Bd3-f5 a5-a4 Qf7-e6 Kd8-c7 Qe6xe7+ Kc7-b8 Qe7xd6+ Kb8-a8 O-O Ka8-a7
30/34+ 00:22 458,536k 19,958k +49.99 e2-e3
30/34+ 00:24 488,685k 19,865k +50.09 e2-e3
30/34+ 00:26 526,550k 19,762k +50.24 e2-e3
30/34 00:28 554,098k 19,684k +50.27 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f6 Qh7-g8+ Kd8-d7 Qg8-b8 Kd7-e6 Qb8xb7 f6-f5 Bf1-c4+ Ke6-f6 Qb7xc6 Kf6-g7 Qc6-c7 Kg7-f6 Qc7-d7 a7-a6 Qd7-e8 e7-e6 Qe8xe6+ Kf6-g7 Qe6-e7+ Kg7-h6 Qe7xd6
31/33+ 00:29 583,844k 19,629k +50.37 e2-e3
31/33+ 00:31 621,210k 19,562k +50.48 e2-e3
31/34+ 00:36 704,438k 19,404k +50.83 e2-e3
31/34 00:38 742,586k 19,342k +50.85 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f5 Ng1-f3 f5-f4 e3xf4 Kd8-d7 Qh7xg6 a7-a6 Qg6-f5+ Kd7-d8 Qf5-f8+ Kd8-d7 Nf3-d4 c6-c5 Nd4-f5 b7-b5 Qf8xe7+ Kd7-c6 Qe7xd6+ Kc6-b7 Qd6xc5 Kb7-a8 Nf5-d6
32/36+ 00:39 771,696k 19,312k +50.95 e2-e3
32/36+ 00:41 803,770k 19,275k +51.05 e2-e3
32/36+ 00:43 845,255k 19,220k +51.41 e2-e3
32/36 00:44 859,664k 19,195k +51.53 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-d8 Qh3xh7 f7-f6 Qh7xg6 a7-a5 Ng1-f3 a5-a4 Qg6-g7 d6-d5 Nf3-d4 a4-a3 Nb1xa3 Kd8-c7 Qg7xe7+ Kc7-b8 Qe7-d8+ Kb8-a7 Qd8xf6 Ka7-b6 Qf6-d6 Kb6-a7 Nd4xc6+ Ka7-b6
33/40+ 00:45 869,669k 19,180k +51.64 e2-e3
33/40+ 00:45 875,956k 19,178k +51.74 e2-e3
33/40+ 00:46 885,156k 19,170k +59.86 e2-e3
33/40 00:46 886,181k 19,163k +61.52 e2-e3 c7-c6 Qd1-h5 d7-d5 Qh5xh7 d5-d4 e3xd4 e7-e5 d4xe5 a7-a5 Qh7xg7 a5-a4 Ng1-f3 a4-a3 Nb1xa3 Ke8-e7 Qg7-f6+ Ke7-e8 Qf6-d6 f7-f6 e5xf6 Ke8-f7 Nf3-e5+ Kf7-g8 f6-f7+ Kg8-h7 f7-f8Q
34/26+ 00:46 886,831k 19,161k +61.62 e2-e3
34/30+ 00:46 886,833k 19,161k +61.93 e2-e3
34/30+ 00:46 892,988k 19,148k +83.35 e2-e3
34/30- 00:46 896,060k 19,142k +52.80 e2-e3 e7-e6
34/34+ 00:46 896,729k 19,141k +77.09 e2-e3
34/36+ 00:47 915,028k 19,105k +91.31 e2-e3
34/37 00:48 929,458k 19,072k +92.93 e2-e3 a7-a6 Qd1-h5 h7-h6 Qh5-e5 d7-d6 Qe5xg7 f7-f5 Qg7xh6 Ke8-d7 Qh6-f8 e7-e5 Qf8xf5+ Kd7-c6 Nb1-c3 Kc6-b6 Qf5-f7 c7-c6 Nc3-e4 c6-c5 Qf7-d7 d6-d5 Qd7xd5 Kb6-c7 Qd5xe5+ Kc7-d7 Qe5-d6+ Kd7-c8 Qd6xc5+ Kc8-d7 Qc5-d5+ Kd7-c7 Qd5-d6+ Kc7-c8
35/40+ 00:48 932,552k 19,071k +93.03 e2-e3
35/40+ 00:49 938,811k 19,066k +93.14 e2-e3
35/40+ 00:50 964,031k 19,037k +95.58 e2-e3
35/40 00:52 999,324k 19,011k +96.35 e2-e3 a7-a6 Qd1-h5 h7-h6 Qh5-e5 d7-d6 Qe5xg7 f7-f6 Qg7-g8+ Ke8-d7 Qg8-a8 d6-d5 Qa8xb7 d5-d4 Qb7-d5+ Kd7-e8 e3xd4 e7-e5 Qd5-e6+ Ke8-d8 Qe6xf6+ Kd8-c8 Bf1xa6+ Kc8-d7 Qf6-f5+ Kd7-e7 Qf5xe5+ Ke7-d7 Qe5-f6 c7-c6 Qf6xh6 Kd7-c7 Qh6-g7+ Kc7-d8 Qg7-f8+ Kd8-d7 Qf8-f7+ Kd7-d6
36/48+ 00:52 1,002,505k 19,010k +96.45 e2-e3
36/50+ 00:52 1,003,515k 19,009k +96.55 e2-e3
36/50+ 00:55 1,051,915k 18,953k +154.14 e2-e3
36/50 00:55 1,052,020k 18,953k +97.47 e2-e3 a7-a6 Qd1-h5 Ke8-f8 Qh5xh7 f7-f6 Qh7-h8+ Kf8-f7 Qh8-d8 b7-b5 Qd8xd7 c7-c5 Qd7-d5+ e7-e6 Qd5-d7+ Kf7-f8 Qd7xe6 c5-c4 Qe6xa6 f6-f5 Qa6xb5 f5-f4 Qb5-b8+ Kf8-e7 Qb8xf4 c4-c3 Qf4-e5+ Ke7-f8 Qe5-f5+ Kf8-e7 Nb1xc3
37/48+ 00:55 1,053,023k 18,951k +97.57 e2-e3
37/48+ 00:55 1,053,129k 18,951k +97.67 e2-e3
37/48+ 00:55 1,059,231k 18,941k +154.14 e2-e3
37/48 00:56 1,074,778k 18,924k +M45 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d7 Qh7xg6 f5-f4 Qg6-f5+ Kd7-c7 Qf5xf4 Kc7-d8 Ng1-f3 a7-a6 Qf4-f5 Kd8-c7 Qf5-f7 Kc7-d7 Nf3-g5 Kd7-c8 Qf7-e8+ Kc8-c7 Qe8xe7+ Kc7-b6 Ng5-f3 a6-a5 Qe7xd6
38/56+ 00:57 1,093,298k 18,933k +M34 e2-e3
38/56+ 00:59 1,122,444k 18,932k +M23 e2-e3
38/56 01:05 1,221,033k 18,772k +M18 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-f8 Qh3xh7 Kf8-e8 Qh7-g8+ Ke8-d7 Qg8xf7 a7-a6 Qf7xg6 c6-c5 Qg6-f5+ Kd7-c6 Qf5-e4+ d6-d5 Qe4xe7 d5-d4 Ng1-f3 b7-b5 Nf3-e5+ Kc6-b6 Qe7-d6+ Kb6-b7 Qd6-c6+ Kb7-a7 Qc6-c7+ Ka7-a8 Ne5-d7 d4xe3 Qc7-b8+
39/34 01:10 1,306,882k 18,628k +M17 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 Ke8-f8 Qh3xh7 Kf8-e8 Ng1-f3 Ke8-d7 Qh7xf7 a7-a6 Qf7xg6 c6-c5 Qg6-f7 Kd7-d8 Qf7-e6 c5-c4 Nb1-c3 Kd8-c7 Qe6xe7+ Kc7-b8 Qe7xd6+ Kb8-a8 Bf1xc4 Ka8-a7 Bc4-d5 a6-a5 Nc3-b5+ Ka7-a8 Qd6-f8+
40/34 01:17 1,423,279k 18,478k +M17 e2-e3 a7-a6 Qd1-h5 h7-h6 Qh5-e5 d7-d6 Qe5xg7 f7-f5 Qg7xh6 Ke8-d7 Qh6-f8 f5-f4 Qf8xf4 Kd7-c8 Qf4-f5+ e7-e6 Qf5-f8+ Kc8-d7 Qf8-f7+ Kd7-c6 Ng1-f3 b7-b5 Nf3-d4+ Kc6-b7 Nd4xe6 Kb7-c6 Qf7xc7+ Kc6-d5 Ne6-f4+ Kd5-e5 Qc7-g7+ Ke5-e4 Bf1-d3+
41/34 01:19 1,466,763k 18,433k +M17 e2-e3 a7-a6 Qd1-h5 h7-h6 Qh5-e5 d7-d6 Qe5xg7 f7-f5 Qg7xh6 Ke8-d7 Qh6-f8 f5-f4 Qf8xf4 Kd7-c8 Qf4-f5+ e7-e6 Qf5-f8+ Kc8-d7 Qf8-f7+ Kd7-c6 Ng1-f3 b7-b5 Nf3-d4+ Kc6-b7 Nd4xe6 Kb7-c6 Qf7xc7+ Kc6-d5 Ne6-f4+ Kd5-e5 Qc7-g7+ Ke5-e4 Bf1-d3+
42/34 01:30 1,657,472k 18,276k +M16 e2-e3 a7-a6 Qd1-h5 d7-d6 Qh5xh7 g7-g6 Qh7-g8+ Ke8-d7 Qg8xf7 a6-a5 Ng1-f3 a5-a4 Qf7xg6 a4-a3 Nb1xa3 c7-c6 Qg6-f7 Kd7-d8 Qf7-e6 Kd8-e8 Qe6-c8+ Ke8-f7 Nf3-g5+ Kf7-g7 Qc8-f5 b7-b5 Ng5-e6+ Kg7-h6 Qf5-g5+ Kh6-h7 Qg5-g7+
43/32 01:48 1,975,276k 18,141k +M16 e2-e3 c7-c6 Qd1-h5 Ke8-f8 Qh5xh7 f7-f6 Qh7-h8+ Kf8-f7 Qh8-c8 b7-b6 Qc8xd7 b6-b5 Qd7xc6 a7-a6 Qc6xa6 g7-g6 Qa6xb5 g6-g5 Bf1-c4+ e7-e6 Qb5-d7+ Kf7-g6 Bc4xe6 Kg6-h6 Be6-f5 g5-g4 Qd7-h7+ Kh6-g5 f2-f4+ g4xf3/ep Ng1xf3+
44/32 02:07 2,296,064k 18,013k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 Kd8-e8 Ng1-f3 Ke8-d8 Nf3-g5 d6-d5 Ng5-f7+ Kd8-c7 Qe6xe7+ Kc7-b6 b2-b4 Kb6-a7 Nf7-d8 Ka7-b6 Qe7xb7+
45/32 02:14 2,417,580k 17,966k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
46/32 02:18 2,483,016k 17,944k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
47/32 02:33 2,723,015k 17,769k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
48/32 02:47 2,950,795k 17,637k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
49/32 03:08 3,301,144k 17,499k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
50/32 03:42 3,854,616k 17,356k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
51/32 04:24 4,561,012k 17,275k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
52/32 04:57 5,127,060k 17,213k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
53/32 08:02 8,221,015k 17,054k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
54/32 08:48 8,998,819k 17,034k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
55/32 13:41 13,958,924k 16,984k +M16 e2-e3 g7-g6 Qd1-f3 c7-c6 Qf3-g3 d7-d6 Qg3-h3 f7-f5 Qh3xh7 Ke8-d8 Qh7xg6 a7-a5 Qg6xf5 a5-a4 Qf5-e6 a4-a3 Nb1xa3 d6-d5 Ng1-f3 Kd8-c7 Qe6xe7+ Kc7-b6 Nf3-e5 d5-d4 Na3-c4+ Kb6-a7 Ne5xc6+ Ka7-a6 Qe7-a3+ Ka6-b5 Nc6xd4+
it does not seem to be a bad luck and it is the same with different positions that I tested.
Top
Uri Blass
Posts: 10296
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: why did they destroy stockfish in finding mates

Post by Uri Blass »

example 2 of not trivial mate position

the old stockfish from 1.6.2020 found mate in 20
[fen3qk2r/8/8/8/8/8/PPPPPPPP/RNBQKBNR w KQk - 0 1][/fen]
FEN: 3qk2r/8/8/8/8/8/PPPPPPPP/RNBQKBNR w KQk - 0 1

Stockfish_20060117_x64_bmi2:
1/1 00:00 189 189k +31.69 Nb1-c3
2/2 00:00 745 745k +36.20 g2-g3 Rh8-h4 g3xh4 Qd8xh4
3/3 00:00 1k 1,100k +31.79 e2-e3 Rh8-h4 Nb1-c3
4/4 00:00 1k 1,306k +32.03 e2-e3 Rh8-h4 Nb1-c3
5/5 00:00 5k 5,460k +32.34 Nb1-c3 Qd8-h4 Ng1-f3 Qh4-h5
6/7 00:00 10k 5,223k +32.20 Nb1-c3 Ke8-e7 Ng1-h3 Rh8-h4 Nh3-g5 Rh4-h5
7/8 00:00 17k 8,632k +32.22 Nb1-c3 Ke8-f7 e2-e3 Rh8-e8 Ng1-h3 Kf7-g7 Nh3-f4
8/12 00:00 25k 8,447k +32.35 Nb1-c3 Ke8-f8 e2-e3 Qd8-b6 Ng1-f3 Qb6-c5 Nc3-e4
9/10 00:00 53k 13,147k +32.40 Nb1-c3 Ke8-e7 e2-e3 Rh8-h6 Qd1-f3 Ke7-e6 Bf1-c4+ Ke6-d7 Nc3-d5
10/13 00:00 152k 15,176k +32.47 Nb1-c3 Ke8-f8 Ng1-f3 Qd8-e7 e2-e3 Qe7-g7 Nc3-e4 Qg7-g6
11/15 00:00 323k 17,013k +32.72 e2-e3 Qd8-c8 Nb1-c3 Qc8-b8 Ng1-f3 Rh8-h5 Bf1-d3 Ke8-f7 O-O Rh5-c5
12/18 00:00 696k 17,388k +32.78 e2-e3 Ke8-d7 Ng1-f3 Kd7-c7 Bf1-d3 Qd8-e8 O-O Rh8-h5 Nb1-c3 Kc7-b8 Nf3-d4 Rh5-g5
13/18 00:00 1,130k 17,391k +32.89 e2-e3 Qd8-g5 Nb1-c3 Qg5-g7 Ng1-f3 Ke8-d8 g2-g3 Qg7-f8 Bf1-c4 Kd8-c8 Nf3-d4 Qf8-h6 Qd1-f3 Qh6-h5 Qf3xh5
14/21 00:00 1,693k 17,640k +32.97 e2-e3 Ke8-d7 Nb1-c3 Kd7-c7 Ng1-f3 Kc7-b8 Nc3-e4 Qd8-e8 Bf1-d3 Qe8-f7 O-O Qf7-e6 Ne4-c3 Qe6-b6 Bd3-e4
15/21 00:00 2,720k 17,664k +33.14 e2-e3 Ke8-d7 Nb1-c3 Rh8-g8 g2-g3 Kd7-c7 Ng1-f3 Rg8-h8 Bf1-d3 Qd8-d7 Bd3-e4 Qd7-h3 Nc3-d5+ Kc7-d6 Nf3-d4 Rh8-a8
16/26 00:00 4,781k 17,641k +33.39 e2-e3 Qd8-g5 Nb1-c3 Ke8-f7 Qd1-f3+ Kf7-g7 Bf1-d3 Qg5-h5 Qf3xh5 Rh8xh5 Ng1-f3 Rh5-a5 O-O Kg7-h6 Nf3-d4 Ra5-c5 Nc3-e4
17/29 00:00 8,431k 18,054k +33.55 e2-e3 Ke8-f8 Qd1-f3+ Kf8-g7 Nb1-c3 Qd8-e8 Qf3-g4+ Qe8-g6 Qg4xg6+ Kg7xg6 Bf1-d3+ Kg6-f6 Bd3-e4 Rh8-h5 Ng1-e2 Rh5-a5 O-O Ra5-a7 Ne2-d4 Kf6-g7 g2-g3 Kg7-f7 Nc3-d5
18/27 00:00 10,341k 18,206k +33.56 e2-e3 Qd8-g5 Nb1-c3 Qg5-h5 Qd1xh5+ Rh8xh5 Ng1-f3 Rh5-a5 Nf3-d4 Ra5-a8 Nd4-c6 Ra8-c8 Bf1-b5 Ke8-f7 Nc6-d4 Rc8-a8 O-O Kf7-g7 Nc3-d5 Kg7-g6 g2-g3
19/24 00:00 10,551k 18,191k +33.56 e2-e3 Qd8-g5 Nb1-c3 Qg5-h5 Qd1xh5+ Rh8xh5 Ng1-f3 Rh5-a5 Nf3-d4 Ra5-a8 Nd4-c6 Ra8-c8 Bf1-b5 Ke8-f7 Nc6-d4 Rc8-a8 Nc3-d5 Ra8-b8 Bb5-d3 Rb8-c8 Nd5-c3 Rc8-c7 O-O Rc7-d7
20/32 00:01 18,939k 18,423k +34.23 e2-e3 Qd8-c8 Nb1-c3 Ke8-e7 Qd1-f3 Qc8-a8 Qf3-g4 Ke7-d6 Ng1-f3 Rh8-d8 Nf3-d4 Rd8-d7 Bf1-d3 Rd7-f7 Bd3-c4 Rf7-b7
21/29 00:01 25,903k 18,216k +36.46 e2-e3 Ke8-e7 Nb1-c3 Qd8-f8 Qd1-e2 Qf8-f7 Qe2-b5 Ke7-f8 Ng1-f3 Qf7-h5 Qb5-c4 Rh8-h7 Qc4-c8+ Qh5-e8 Qc8-a6
22/35+ 00:03 56,221k 17,985k +39.12 e2-e3
22/36+ 00:03 65,628k 17,926k +40.45 e2-e3
22/42 00:04 75,202k 17,867k +40.74 e2-e3 Ke8-e7 Nb1-c3 Qd8-g8 Qd1-f3 Qg8-g6 Nc3-d5+ Ke7-d7 Qf3-f4 Qg6-c6 Qf4-g4+ Kd7-d6 Nd5-c3 Rh8-h6 Qg4-f4+ Kd6-d7 Bf1-b5 Kd7-c8 Bb5xc6 Rh6xc6 Ng1-f3 Rc6-a6
23/13+ 00:04 80,401k 17,863k +40.84 e2-e3
23/13+ 00:04 81,296k 17,855k +40.95 e2-e3
23/32+ 00:04 83,813k 17,829k +43.09 e2-e3
23/32- 00:04 83,940k 17,829k +40.52 e2-e3 Qd8-c8
23/32+ 00:05 89,151k 17,773k +42.27 e2-e3
23/44+ 00:06 110,531k 17,725k +45.28 e2-e3
23/44 00:06 121,173k 17,736k +46.16 e2-e3 Qd8-d6 Qd1-g4 Qd6-d7 Qg4-e4+ Ke8-d8 Ng1-f3 Rh8-e8 Qe4-b4 Re8-e6 Nb1-c3 Kd8-c7 Qb4-c5+ Kc7-b7 Nf3-d4 Re6-h6 Bf1-d3 Qd7-d6 Qc5-b5+ Kb7-c7 Qb5-c4+ Kc7-b7 Bd3-e4+ Kb7-b8 Nd4-c6+ Kb8-c7 Nc6-e5+ Kc7-b6 Qc4-b5+ Kb6-c7 Nc3-d5+ Kc7-c8 Ne5-f7 Rh6-e6 Nf7xd6+ Kc8-d8
24/34+ 00:06 122,827k 17,737k +46.26 e2-e3
24/34+ 00:06 123,101k 17,738k +46.36 e2-e3
24/34+ 00:06 123,519k 17,734k +72.03 e2-e3
24/34 00:06 123,910k 17,727k +72.36 e2-e3 Qd8-h4 Qd1-f3 Ke8-d8 Nb1-c3 Kd8-c7 Qf3-f7+ Kc7-b8 Qf7-b3+ Kb8-c8 Bf1-a6+ Kc8-d7 Qb3-b5+ Kd7-e6 Qb5-b6+ Ke6-f7 Qb6-c7+ Kf7-f8 Ba6-c4 Qh4-e7 Qc7-f4+ Kf8-g7 Qf4-g3+ Kg7-f8 Ng1-f3 Qe7-f6
25/33- 00:07 131,435k 17,723k +72.03 e2-e3 Ke8-d7
25/36+ 00:07 131,696k 17,725k +72.36 e2-e3
25/36- 00:07 133,581k 17,730k +71.24 e2-e3 Ke8-d7
25/36- 00:07 135,126k 17,731k +70.67 e2-e3 Ke8-d7
25/36+ 00:07 135,317k 17,730k +72.03 e2-e3
25/36+ 00:07 135,337k 17,730k +73.07 e2-e3
25/36- 00:07 136,622k 17,729k +59.55 e2-e3 Rh8-h6
25/36+ 00:07 137,172k 17,732k +72.36 e2-e3
25/36+ 00:07 141,959k 17,763k +74.96 e2-e3
25/36- 00:08 144,306k 17,763k +58.72 e2-e3 Qd8-d6
25/36+ 00:08 144,448k 17,761k +70.09 e2-e3
25/36+ 00:08 144,478k 17,758k +73.07 e2-e3
25/36- 00:08 144,888k 17,754k +56.34 e2-e3 Qd8-h4
25/36+ 00:08 147,376k 17,748k +72.36 e2-e3
25/36- 00:08 150,408k 17,760k +52.10 e2-e3 Qd8-h4
25/40+ 00:08 150,623k 17,760k +70.09 e2-e3
25/40 00:09 170,641k 17,820k +77.17 e2-e3 Qd8-h4 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qh4-f6 Qc6-d7+ Kf7-g8 Qd7-g4+ Kg8-h8 Bf1-d3 Rf8-a8 Nb1-c3 Ra8-d8 Qg4-h3+ Kh8-g8 Qh3-g3+ Kg8-h8 Nf3-e5 Rd8xd3 c2xd3 Kh8-h7 Qg3-g6+ Qf6xg6 Ne5xg6 Kh7xg6 Nc3-d5 Kg6-f7 Nd5-f4
26/32+ 00:10 184,671k 17,856k +77.28 e2-e3
26/33+ 00:10 184,774k 17,858k +77.39 e2-e3
26/33+ 00:10 186,584k 17,841k +79.03 e2-e3
26/33- 00:10 186,916k 17,834k +76.96 e2-e3 Rh8-h7
26/34+ 00:10 187,223k 17,831k +78.49 e2-e3
26/34+ 00:10 188,353k 17,830k +79.55 e2-e3
26/35 00:11 205,850k 17,888k +80.40 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-e7 Ng1-f3 Qg5-f5 Nb1-c3 Rf8-d8 Nf3-d4 Qf5-e5 Bf1-b5 Rd8xd4 Qc6-e8+ Ke7-f6 Qe8xe5+ Kf6xe5 e3xd4+ Ke5xd4 Ke1-e2 Kd4-e5 Bb5-d3 Ke5-f6 Bd3-e4 Kf6-e7 Ke2-e3 Ke7-d8
27/31+ 00:11 211,825k 17,886k +80.51 e2-e3
27/31- 00:11 212,934k 17,886k +80.29 e2-e3 Qd8-d7
27/36- 00:11 214,036k 17,884k +78.62 e2-e3 Qd8-d7
27/36+ 00:12 214,599k 17,882k +79.25 e2-e3
27/36+ 00:12 214,944k 17,882k +80.07 e2-e3
27/36- 00:12 218,336k 17,883k +77.98 e2-e3 Qd8-h4
27/37+ 00:12 218,645k 17,884k +79.63 e2-e3
27/38- 00:12 221,001k 17,889k +76.64 e2-e3 Qd8-h4
27/38+ 00:12 221,437k 17,888k +79.01 e2-e3
27/38 00:13 237,986k 17,918k +80.98 e2-e3 Qd8-h4 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qh4-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-g4+ Kg8-h8 Nb1-c3 Rd8xd3 Qg4-h5+ Kh8-g8 c2xd3 Qf6-g7 Qh5-e8+ Kg8-h7 Qe8-e4+ Kh7-g8 Qe4-e6+ Kg8-h7 Qe6-h3+ Kh7-g8 Nc3-d5 Qg7-b7 Qh3-e6+ Qb7-f7 Qe6xf7+ Kg8xf7 Ke1-e2 Kf7-f8
28/33+ 00:13 239,555k 17,921k +81.08 e2-e3
28/33+ 00:14 262,255k 17,953k +81.18 e2-e3
28/33 00:14 263,300k 17,953k +81.19 e2-e3 Qd8-h4 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qh4-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-g4+ Kg8-h8 Nb1-c3 Rd8xd3 Qg4-h5+ Kh8-g8 c2xd3 Kg8-g7 Qh5-g4+ Kg7-f8 Qg4-f4 Qf6xf4 e3xf4 Kf8-f7 Ke1-e2 Kf7-e8 Ke2-e3 Ke8-d8 Ke3-e4
29/39 00:17 311,275k 17,992k +81.27 e2-e3 Qd8-h4 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qh4-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-g4+ Kg8-h8 Nb1-c3 Rd8xd3 Qg4-h5+ Kh8-g8 c2xd3 Kg8-g7 Nf3-d4 Qf6-g6 Qh5xg6+ Kg7xg6 Ke1-e2 Kg6-f6 Ke2-f3 Kf6-e5 g2-g3 Ke5-d6 Kf3-e4 Kd6-d7 Ke4-e5 Kd7-e7
30/34+ 00:17 318,348k 17,973k +81.37 e2-e3
30/39 00:18 324,250k 17,960k +81.40 e2-e3 Qd8-h4 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qh4-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-g4+ Kg8-f8 Nb1-c3 Rd8-d6 Nc3-e4 Qf6-g6 Qg4-f4+ Kf8-e7 Qf4xd6+ Qg6xd6 Ne4xd6 Ke7xd6 Ke1-e2 Kd6-d5 Bd3-b5 Kd5-d6 Bb5-c4 Kd6-e7 Ke2-d3 Ke7-d8 Kd3-e4 Kd8-e8
31/42+ 00:18 334,087k 17,926k +81.50 e2-e3
31/42+ 00:18 336,119k 17,922k +81.61 e2-e3
31/42+ 00:18 339,340k 17,914k +83.18 e2-e3
31/42 00:19 348,990k 17,899k +83.68 e2-e3 Qd8-f6 Qd1-g4 Rh8-h6 Nb1-c3 Ke8-f8 Bf1-c4 Rh6-g6 Qg4-c8+ Kf8-g7 Ng1-f3 Qf6-f8 Qc8-d7+ Kg7-h8 Bc4-d3 Qf8-h6 Bd3xg6 Qh6xg6 Qd7-e7 Qg6xc2 Qe7-f8+ Kh8-h7 Nf3-g5+ Kh7-g6 Qf8-d6+ Kg6xg5 h2-h4+ Kg5-h5 g2-g4+ Kh5xg4
32/44+ 00:19 355,577k 17,900k +83.78 e2-e3
32/44+ 00:20 358,027k 17,897k +83.88 e2-e3
32/46+ 00:21 391,808k 17,847k +84.90 e2-e3
32/46- 00:22 402,513k 17,843k +83.25 e2-e3 Qd8-h4
32/46+ 00:22 405,184k 17,838k +84.48 e2-e3
32/46+ 00:24 442,580k 17,785k +87.66 e2-e3
32/46 00:25 447,564k 17,776k +88.14 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Qe8-c6 Ng1-f3 Qc6-e8 Qd4-h8+ Kf8-e7 Nf3-e5 Qe8xh8 Ne5xg6+ Ke7-d7 Ng6xh8 Kd7-c6 Bc4-b5+ Kc6-c7 Nh8-g6 Kc7-b6 Ng6-f8 Kb6-b7 Bb5-d3 Kb7-b6
33/26+ 00:26 462,287k 17,770k +88.24 e2-e3
33/36+ 00:26 466,647k 17,762k +88.34 e2-e3
33/40+ 00:30 534,149k 17,738k +90.49 e2-e3
33/40 00:31 549,922k 17,732k +91.15 e2-e3 Rh8-h6 Qd1-g4 Rh6-h4 Qg4-f3 Ke8-d7 Nb1-c3 Kd7-c7 Qf3-f5 Kc7-b7 Qf5-b5+ Qd8-b6 Qb5-d7+ Kb7-a8 Nc3-d5 Qb6-b7 Qd7-d8+ Ka8-a7 Qd8xh4 Qb7xd5 Qh4-d4+ Qd5xd4 e3xd4 Ka7-a8 Bf1-c4 Ka8-b8 h2-h4 Kb8-c8 Bc4-d3
34/40+ 00:31 558,745k 17,730k +91.25 e2-e3
34/40+ 00:31 562,002k 17,728k +91.35 e2-e3
34/40+ 00:33 597,816k 17,709k +91.99 e2-e3
34/42- 00:37 654,312k 17,676k +90.98 e2-e3 Qd8-g5
34/42+ 00:37 659,145k 17,673k +91.70 e2-e3
34/44+ 00:42 754,701k 17,680k +93.16 e2-e3
34/49 00:49 867,463k 17,696k +93.63 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qg5-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-g4+ Kg8-f7 Bd3-c4+ Kf7-f8 Nb1-c3 Kf8-e7 Qg4-e4+ Ke7-d7 Bc4-b5+ Kd7-c7 Nc3-d5+ Rd8xd5 Qe4xd5 Qf6-d6 Qd5-f7+ Kc7-b8 Nf3-d4 Kb8-c8 Qf7-g7 Qd6-c7 Bb5-a6+ Kc8-b8 Qg7-g8+ Kb8-a7 Nd4-b5+ Ka7-b6 Nb5xc7 Kb6-c5 Qg8-d5+ Kc5-b6 Qd5-d6+ Kb6-a5
35/44+ 00:50 895,014k 17,708k +93.73 e2-e3
35/44+ 00:50 902,496k 17,712k +93.83 e2-e3
35/44+ 00:55 990,219k 17,736k +95.33 e2-e3
35/44 00:57 1,026,011k 17,731k +95.41 e2-e3 Qd8-h4 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qh4-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-g4+ Kg8-h8 Nf3-d4 Rd8-d6 Qg4-c8+ Rd6-d8 Qc8-h3+ Kh8-g8 Bd3-c4+ Kg8-f8 Nd4-e6+ Kf8-e8 Qh3-h5+ Ke8-e7 Qh5-h7+ Qf6-f7 Qh7-h4+ Qf7-f6 Qh4xf6+ Ke7xf6 Ne6xd8 Kf6-e7 Nd8-c6+ Ke7-e8 Bc4-b5 Ke8-f7 Nc6-d4 Kf7-f8
36/47+ 01:01 1,081,631k 17,723k +95.51 e2-e3
36/47+ 01:01 1,084,384k 17,722k +95.61 e2-e3
36/47+ 01:18 1,391,030k 17,785k +97.75 e2-e3
36/47 01:19 1,417,552k 17,798k +97.88 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qg5-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-h7+ Kg8-f8 Bd3-c4 Rd8-d6 Qh7-g8+ Kf8-e7 Nb1-c3 Qf6-f5 Nf3-d4 Qf5-d7 Qg8-f7+ Ke7-d8 Qf7-f8+ Kd8-c7 Nd4-b5+ Kc7-b7 Nb5xd6+ Kb7-a7 Nd6-b5+ Ka7-b7 Nb5-d4 Kb7-c7 Bc4-b5 Kc7-b7 Bb5xd7
37/46+ 01:20 1,440,226k 17,804k +97.99 e2-e3
37/46+ 01:21 1,449,435k 17,809k +98.09 e2-e3
37/46+ 01:23 1,481,446k 17,820k +99.60 e2-e3
37/46- 01:23 1,489,301k 17,827k +97.75 e2-e3 Qd8-d7
37/50+ 01:24 1,497,973k 17,831k +99.01 e2-e3
37/52+ 01:32 1,654,322k 17,918k +154.14 e2-e3
37/52 02:01 2,233,326k 18,323k +M35 e2-e3 Rh8-h6 Qd1-g4 Qd8-f6 Nb1-c3 Ke8-f8 Bf1-c4 Rh6-g6 Qg4-c8+ Kf8-g7 Ng1-f3 Qf6-f8 Qc8-d7+ Kg7-h8 Bc4-d3 Qf8-d6 Qd7-e8+ Rg6-g8 Qe8-h5+ Kh8-g7 Qh5-h7+ Kg7-f8 Bd3-c4 Qd6-g6 Qh7-c7 Rg8-g7 Qc7-d8+ Qg6-e8 Qd8-d6+ Qe8-e7 Qd6-f4+ Rg7-f7 Bc4xf7 Qe7-f6 Qf4-b8+ Kf8xf7 Nc3-d5 Qf6-e7 Qb8-c8 Kf7-g7 Qc8-g4+ Kg7-f7 Qg4-f5+ Kf7-e8 Nf3-g5
38/53+ 02:14 2,465,912k 18,387k +M24 e2-e3
38/53 02:15 2,495,543k 18,389k +M24 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qg5-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-h7+ Kg8-f8 Bd3-c4 Qf6-g7 Qh7-f5+ Kf8-e8 Bc4-b5+ Ke8-e7 Qf5-c5+ Ke7-f6 Qc5-b6+ Kf6-e7 Qb6-c7+ Ke7-f6 Qc7xd8+ Qg7-e7 Qd8xe7+ Kf6xe7 h2-h4 Ke7-f6 h4-h5 Kf6-e6 Nb1-c3 Ke6-d6 h5-h6 Kd6-c7 h6-h7 Kc7-d6 h7-h8Q Kd6-c7 Nc3-d5+ Kc7-d6 Qh8-f6+ Kd6xd5 Qf6-c6+
39/48 02:23 2,644,782k 18,413k +M23 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-g8 Qg4-b4+ Qf7-e7 Qb4-d4 Rg8-g6 Qd4-h8+ Rg6-g8 Qh8-h6+ Qe7-g7 Qh6-f4+ Kf8-e7 Qf4-c7+ Ke7-f8 Qc7-c8+ Kf8-f7 Bf1-c4+ Kf7-g6 Bc4xg8 Kg6-h6 Qc8-h3+ Kh6-g6 Bg8-c4 Qg7-f6 Ng1-f3 Kg6-g7 Qh3-d7+ Kg7-h8 Qd7-e8+ Kh8-h7 Qe8-g8+ Kh7-h6 Bc4-d3 Qf6-g7 Qg8-e6+ Qg7-f6 Qe6xf6+ Kh6-h5 Qf6-g6+
40/44 02:24 2,656,754k 18,409k +M22 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-g8 Qg4-b4+ Qf7-e7 Qb4-d4 Rg8-g6 Qd4-h8+ Rg6-g8 Qh8-h6+ Qe7-g7 Qh6-f4+ Kf8-e7 Nc3-d5+ Ke7-e6 Bf1-c4 Rg8-c8 Ng1-f3 Rc8-c5 Nf3-d4+ Ke6-d7 Bc4-b5+ Kd7-c8 Qf4-d6 Rc5xd5 Qd6xd5 Qg7-b7 Qd5-d6 Qb7-b6 Qd6-d7+ Kc8-b8 Nd4-c6+ Qb6xc6 Qd7xc6 Kb8-a7 Qc6-c7+ Ka7-a8 Bb5-c6+
41/44 02:25 2,680,159k 18,412k +M22 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-g8 Qg4-b4+ Qf7-e7 Qb4-d4 Rg8-g6 Qd4-h8+ Rg6-g8 Qh8-h6+ Qe7-g7 Qh6-f4+ Kf8-e7 Nc3-d5+ Ke7-e6 Bf1-c4 Rg8-c8 Ng1-f3 Rc8-c5 Nf3-d4+ Ke6-d7 Bc4-b5+ Kd7-c8 Qf4-d6 Rc5xd5 Qd6xd5 Qg7-b7 Qd5-d6 Qb7-b6 Qd6-d7+ Kc8-b8 Nd4-c6+ Qb6xc6 Qd7xc6 Kb8-a7 Qc6-c7+ Ka7-a8 Bb5-c6+
42/44 02:27 2,715,449k 18,413k +M22 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-g8 Qg4-b4+ Qf7-e7 Qb4-d4 Rg8-g6 Qd4-h8+ Rg6-g8 Qh8-h6+ Qe7-g7 Qh6-f4+ Qg7-f7 Qf4xf7+ Kf8xf7 Bf1-c4+ Kf7-g6 Bc4xg8 Kg6-g7 h2-h4 Kg7-f6 Bg8-c4 Kf6-g7 Nc3-e4 Kg7-g6 h4-h5+ Kg6-h6 Ng1-f3 Kh6-g7 h5-h6+ Kg7-f8 h6-h7 Kf8-e7 h7-h8Q Ke7-d7 Rh1-h7+ Kd7-c6 Qh8-f6+
43/44 02:34 2,838,172k 18,425k +M22 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qg5-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-h7+ Kg8-f8 Bd3-c4 Rd8-d6 Qh7-g8+ Kf8-e7 Nb1-c3 Rd6-d7 Nc3-d5+ Rd7xd5 Qg8xd5 Qf6-d6 Qd5xd6+ Ke7xd6 h2-h4 Kd6-c5 h4-h5 Kc5xc4 h5-h6 Kc4-d5 h6-h7 Kd5-d6 h7-h8Q Kd6-e6 Rh1-h6+ Ke6-f7 Nf3-g5+ Kf7-e7 Qh8-g7+ Ke7-d8 Rh6-h8+
44/44 02:35 2,870,195k 18,429k +M21 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qg5-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-h7+ Kg8-f8 Bd3-c4 Rd8-d6 Qh7-g8+ Kf8-e7 Nb1-c3 Rd6-d7 Nf3-d4 Rd7xd4 e3xd4 Qf6-c6 Nc3-d5+ Ke7-d7 Qg8-b8 Qc6-e6+ Ke1-d1 Qe6-c6 Bc4-b5 Kd7-e6 Bb5xc6 Ke6-f7 Qb8-c7+ Kf7-g6 Bc6-e8+ Kg6-f5 Qc7-f4+ Kf5-e6 Qf4-e5+
45/42 02:37 2,904,117k 18,430k +M21 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Ng1-f3 Qg5-f6 Qc6-d7+ Kf7-g8 Bf1-d3 Rf8-d8 Qd7-h7+ Kg8-f8 Bd3-c4 Rd8-d6 Qh7-g8+ Kf8-e7 Nb1-c3 Rd6-d7 Nf3-d4 Rd7xd4 e3xd4 Qf6-c6 Nc3-d5+ Ke7-d7 Qg8-b8 Qc6-e6+ Ke1-d1 Qe6-g4+ f2-f3 Qg4-h4 Bc4-b5+ Kd7-e6 Qb8-e8+ Ke6-f5 Qe8-f7+ Kf5-g5 Qf7-g7+ Kg5-h5 Bb5-e8+
46/42 03:04 3,381,388k 18,332k +M21 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-h6 Ng1-f3 Rh6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-f7 Bc6-e8+ Kf7-e7 h2-h4 Ke7xe8 h4-h5 Ke8-d8 h5-h6 Kd8-c7 h6-h7 Kc7-b7 h7-h8Q Kb7-c7 Rh1-h6 Kc7-b7 Qh8-g7+ Kb7-b8 Rh6-h8+
47/40 03:06 3,419,995k 18,319k +M20 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-g7 h2-h4 Kg7-g6 h4-h5+ Kg6-f7 Ng1-f3 Kf7-e6 h5-h6 Ke6-d6 h6-h7 Kd6-c5 h7-h8Q Kc5xc6 Rh1-h6+ Kc6-b7 Qh8-g7+ Kb7-b8 Rh6-h8+
48/40 03:08 3,449,566k 18,306k +M20 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-g7 h2-h4 Kg7-g6 h4-h5+ Kg6-h6 Bc6-b5 Kh6-g5 h5-h6 Kg5-g4 h6-h7 Kg4-f5 h7-h8Q Kf5-g6 Rh1-h6+ Kg6-g5 Qh8-f6+ Kg5-g4 Qf6-g6+
49/40 03:12 3,521,128k 18,266k +M20 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-g7 h2-h4 Kg7-g6 h4-h5+ Kg6-h6 Bc6-b5 Kh6-g5 h5-h6 Kg5-g4 h6-h7 Kg4-f5 h7-h8Q Kf5-g6 Rh1-h6+ Kg6-g5 Qh8-f6+ Kg5-g4 Qf6-g6+
50/40 03:13 3,528,384k 18,260k +M20 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-g7 h2-h4 Kg7-f7 Bc6-b5 Kf7-f6 h4-h5 Kf6-e7 h5-h6 Ke7-d6 h6-h7 Kd6-c7 h7-h8Q Kc7-d6 Rh1-h6+ Kd6-c7 Qh8-g7+ Kc7-c8 Rh6-h8+
51/40 03:18 3,612,103k 18,225k +M20 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-g7 h2-h4 Kg7-f7 Bc6-b5 Kf7-f6 h4-h5 Kf6-e7 h5-h6 Ke7-d6 h6-h7 Kd6-c7 h7-h8Q Kc7-d6 Rh1-h6+ Kd6-c7 Qh8-g7+ Kc7-c8 Rh6-h8+
52/40 03:49 4,186,733k 18,221k +M20 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-g7 h2-h4 Kg7-f7 Bc6-b5 Kf7-f6 h4-h5 Kf6-e7 h5-h6 Ke7-d6 h6-h7 Kd6-c7 h7-h8Q Kc7-d6 Rh1-h6+ Kd6-c7 Qh8-g7+ Kc7-b8 Rh6-h8+
53/40 03:54 4,279,655k 18,225k +M20 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-g7 h2-h4 Kg7-f7 Bc6-b5 Kf7-f6 h4-h5 Kf6-e7 h5-h6 Ke7-d6 h6-h7 Kd6-c7 h7-h8Q Kc7-d6 Rh1-h6+ Kd6-c7 Qh8-g7+ Kc7-b8 Rh6-h8+
54/40 03:58 4,340,266k 18,225k +M20 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-g7 h2-h4 Kg7-f7 Bc6-b5 Kf7-f6 h4-h5 Kf6-e7 h5-h6 Ke7-d6 h6-h7 Kd6-c7 h7-h8Q Kc7-d6 Rh1-h6+ Kd6-c7 Qh8-g7+ Kc7-b8 Rh6-h8+
55/40 04:20 4,748,087k 18,204k +M20 e2-e3 Qd8-d7 Nb1-c3 Ke8-f8 Qd1-f3+ Qd7-f7 Qf3-g4 Rh8-h6 Bf1-c4 Rh6-g6 Qg4-e4 Qf7-e8 Qe4-d4 Rg6-c6 Qd4-h8+ Kf8-e7 Qh8xe8+ Ke7xe8 Bc4-b5 Ke8-f8 Bb5xc6 Kf8-g7 h2-h4 Kg7-f7 Bc6-b5 Kf7-f6 h4-h5 Kf6-e7 h5-h6 Ke7-d6 h6-h7 Kd6-c7 h7-h8Q Kc7-d6 Rh1-h6+ Kd6-c7 Qh8-g7+ Kc7-b8 Rh6-h8+

latest stockfish is clearly slower and cannot find the mate so fast(did not wait for it to see the mate)
FEN: 3qk2r/8/8/8/8/8/PPPPPPPP/RNBQKBNR w KQk - 0 1

Stockfish_20112916_x64_bmi2:
Found 145 tablebases
NNUE evaluation using nn-62ef826d1a6d.nnue enabled
1/1 00:00 149 149k +30.17 e2-e3
2/2 00:00 399 399k +35.44 g2-g3 Rh8-h4 g3xh4 Qd8xh4
3/3 00:00 715 715k +30.17 g2-g3 Rh8-h5 e2-e3
4/4 00:00 988 988k +30.51 g2-g3 Rh8-h5
5/5 00:00 2k 1,681k +30.55 g2-g3 Rh8-h5 c2-c3 Rh5-a5 e2-e3
6/6 00:00 3k 2,547k +30.82 Nb1-c3 Qd8-g5 e2-e3 Rh8-h5
7/8 00:00 9k 4,643k +30.86 Nb1-c3 Qd8-d6 g2-g3 Qd6-c5 d2-d3 Rh8-h5
8/10 00:00 20k 10,044k +30.82 Nb1-c3 Qd8-d6 g2-g3 O-O Ng1-f3 Rf8-f5 e2-e3 Qd6-f6
9/11 00:00 25k 8,499k +30.89 Nb1-c3 Qd8-d6 Ng1-f3 O-O b2-b3 Rf8-f5 h2-h3 Rf5-a5 e2-e3 Qd6-f6
10/12 00:00 40k 10,010k +30.94 Nb1-c3 Qd8-d6 Ng1-f3 O-O h2-h3 Qd6-f6 a2-a3 Qf6-e6 e2-e3 Qe6-f5 d2-d3
11/12 00:00 50k 10,017k +30.89 Nb1-c3 Qd8-d6 Ng1-f3 O-O b2-b3 Rf8-f7 h2-h3 Rf7-e7 a2-a4 Qd6-f6 e2-e3
12/16 00:00 137k 12,425k +30.97 Nb1-c3 Qd8-d6 Ng1-f3 O-O b2-b3 Qd6-e6 Bc1-b2 Rf8-f7 e2-e3 Rf7-f6 a2-a4 Qe6-c6 h2-h3 Qc6-c5
13/14 00:00 203k 13,558k +30.97 Nb1-c3 Qd8-d6 Ng1-f3 O-O b2-b3 Qd6-e6 Bc1-b2 Qe6-f7 e2-e3 Rf8-d8 d2-d3 Qf7-f6 a2-a4 Rd8-d6
14/21 00:00 802k 15,428k +30.86 e2-e3 Qd8-f6 Qd1-f3 Qf6-h6 Nb1-c3 Rh8-f8 Qf3-e4+ Ke8-d8 a2-a4 Kd8-c8 b2-b3 Qh6-d6 Bf1-b5 Kc8-b8 g2-g3
15/20 00:00 1,282k 16,028k +31.01 e2-e3 O-O Nb1-c3 Kg8-g7 Ng1-f3 Qd8-e8 b2-b3 Rf8-f6 a2-a4 Qe8-f7 b3-b4 Rf6-e6 b4-b5
16/20 00:00 3,017k 16,669k +31.01 e2-e3 Qd8-c8 b2-b3 Ke8-f7 Ng1-f3 Kf7-f8 Bc1-a3+ Kf8-g8 Ba3-b2 Rh8-h6 a2-a4 Rh6-h7 Nb1-c3 Rh7-d7 h2-h3 Rd7-e7
17/24 00:00 5,757k 16,783k +31.12 e2-e3 Qd8-c8 Ng1-f3 Qc8-c6 a2-a3 Ke8-d8 Nf3-d4 Qc6-d7 h2-h3 Kd8-c8 Nb1-c3 Qd7-d6 f2-f3 Qd6-g3+ Ke1-e2 Kc8-b8 b2-b3 Rh8-e8
18/24 00:00 10,118k 16,669k +31.17 e2-e3 Qd8-c8 b2-b3 Ke8-d8 a2-a4 Kd8-c7 Ng1-f3 Qc8-b7 Bc1-b2 Rh8-g8 Nb1-c3 Kc7-c8 h2-h4 Rg8-d8 Bf1-c4 Kc8-b8 d2-d3 Qb7-e7 d3-d4
19/25 00:00 12,168k 16,398k +31.27 e2-e3 Ke8-d7 Nb1-c3 Kd7-c7 Ng1-f3 Kc7-b8 a2-a4 Qd8-c7 Nc3-e4 Qc7-b7 d2-d3 Qb7-f7 b2-b4 Rh8-f8 b4-b5 Qf7-g6
20/29 00:01 17,899k 16,361k +31.63 e2-e3 Qd8-g5 a2-a4 Rh8-f8 Nb1-c3 Ke8-d7 Ng1-f3 Qg5-d8 b2-b4 Kd7-c8 a4-a5 Rf8-g8 b4-b5 Kc8-b8 Bc1-b2 Rg8-f8 d2-d4 Rf8-g8
21/25 00:01 26,782k 16,114k +32.64 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Bf1-c4+ Kf7-g7 Qc6-d7+ Kg7-f6 Qd7-d6+ Kf6-g7 Qd6-g3 Qg5xg3 h2xg3 Rf8-f6 d2-d3 Kg7-f8 a2-a4 Rf6-g6 b2-b4 Kf8-g7
22/32 00:02 44,441k 15,827k +33.18 e2-e3 Rh8-h4 g2-g3 Rh4-h6 Qd1-g4 Qd8-d5 Bf1-b5+ Qd5xb5 Qg4-g8+ Ke8-d7 Qg8-g7+ Kd7-c8 Qg7xh6 Qb5-a4 Qh6-h8+ Kc8-b7 Qh8-h7+ Kb7-b8 Nb1-c3 Qa4-a6 f2-f3 Qa6-c6 Qh7-e4 Qc6-a6 b2-b4 Qa6-c8
23/33+ 00:03 53,715k 15,679k +33.26 e2-e3
23/33+ 00:03 55,964k 15,659k +33.34 e2-e3
23/33+ 00:03 58,081k 15,651k +33.47 e2-e3
23/33 00:04 64,073k 15,605k +33.55 e2-e3 Rh8-h4 g2-g3 Rh4-h6 Qd1-g4 Qd8-d6 Bf1-b5+ Ke8-d8 Qg4-f4 Qd6-b6 Qf4-d4+ Qb6xd4 e3xd4 Kd8-e7 Nb1-c3 Rh6-d6 Ng1-e2 Rd6-d8 a2-a4 Rd8-d6 b2-b3 Ke7-f7 Bc1-a3 Rd6-b6 Nc3-d5 Rb6-e6 c2-c4 Kf7-g7 b3-b4
24/34+ 00:04 74,192k 15,593k +33.63 e2-e3
24/34+ 00:05 80,826k 15,588k +33.72 e2-e3
24/34+ 00:05 91,436k 15,590k +33.84 e2-e3
24/34 00:06 93,677k 15,600k +33.86 e2-e3 Rh8-h4 Qd1-f3 Rh4-b4 Qf3-h5+ Ke8-d7 Qh5-d5+ Kd7-e7 Qd5xd8+ Ke7xd8 Nb1-c3 Rb4-b7 a2-a4 Kd8-e7 Nc3-d5+ Ke7-f8 Ng1-f3 Rb7-d7 Nd5-c3 Rd7-b7 b2-b4 Rb7-b8 Nc3-d5 Rb8-d8 c2-c4 Rd8-b8 b4-b5 Kf8-g8
25/29+ 00:06 108,538k 15,601k +33.94 e2-e3
25/32 00:07 112,337k 15,604k +33.94 e2-e3 Ke8-d7 Nb1-c3 Kd7-c7 Qd1-g4 Rh8-g8 Qg4-c4+ Kc7-b8 Qc4-b4+ Kb8-a7 Qb4-d4+ Qd8xd4 Nc3-b5+ Ka7-b6 Nb5xd4 Rg8-g4 Nd4-b5 Rg4-g7 Nb5-c3 Kb6-c5 Ng1-f3 Rg7-f7 a2-a4 Rf7-b7 Bf1-b5 Kc5-b6 Nf3-d4 Kb6-c5 Nc3-e4+ Kc5-b6 Bb5-f1 Rb7-d7
26/30+ 00:08 126,790k 15,592k +34.02 e2-e3
26/30+ 00:08 131,255k 15,583k +34.11 e2-e3
26/30 00:08 132,740k 15,585k +34.15 e2-e3 Ke8-d7 Nb1-c3 Kd7-c7 Qd1-g4 Rh8-g8 Qg4-c4+ Kc7-b8 Qc4-b4+ Kb8-a7 Qb4-d4+ Qd8xd4 Nc3-b5+ Ka7-b6 Nb5xd4 Rg8-g6 Nd4-b5 Kb6-b7 c2-c4 Rg6-g7 Nb5-c3 Kb7-b8 Ng1-f3 Kb8-a8 Nc3-d5 Rg7-b7 Nf3-d4 Ka8-b8 Nd5-c3 Kb8-a8
27/37 00:09 144,720k 15,561k +34.17 e2-e3 Ke8-d7 Nb1-c3 Kd7-c7 Qd1-g4 Rh8-g8 Qg4-c4+ Kc7-b8 Qc4-b4+ Kb8-a7 Qb4-d4+ Qd8xd4 Nc3-b5+ Ka7-b6 Nb5xd4 Rg8-h8 Ng1-e2 Kb6-b7 Ne2-c3 Rh8-d8 a2-a4 Rd8-d6 a4-a5 Kb7-b8 b2-b4 Rd6-d7 Nd4-f3 Rd7-d8 b4-b5 Rd8-d7 a5-a6 Kb8-a7 Nf3-e5
28/38+ 00:10 161,634k 15,542k +34.25 e2-e3
28/38+ 00:11 171,735k 15,532k +34.33 e2-e3
28/38+ 00:12 198,295k 15,523k +34.63 e2-e3
28/42 00:12 201,359k 15,529k +34.63 e2-e3 Ke8-d7 Nb1-c3 Kd7-c7 Qd1-g4 Rh8-h7 Qg4-f4+ Kc7-b6 Ng1-f3 Qd8-e8 Qf4-d4+ Kb6-b7 Qd4-e4+ Qe8xe4 Nc3xe4 Kb7-c8 Ne4-f6 Rh7-f7 Nf6-d5 Kc8-d8 c2-c4 Kd8-e8 a2-a4 Rf7-a7 Nf3-e5 Ke8-f8 b2-b4 Kf8-g7 Ne5-f3 Kg7-h6 a4-a5 Ra7-g7 b4-b5 Rg7-a7
29/37+ 00:14 225,923k 15,492k +34.72 e2-e3
29/37+ 00:15 238,636k 15,484k +34.80 e2-e3
29/37+ 00:19 298,533k 15,436k +35.67 e2-e3
29/37 00:19 307,124k 15,443k +35.92 e2-e3 Ke8-d7 Nb1-c3 Rh8-g8 Qd1-h5 Rg8-g5 Qh5-f7+ Qd8-e7 Qf7xe7+ Kd7xe7 a2-a4 Rg5-g8 Ng1-f3 Ke7-d6 b2-b3 Rg8-b8 b3-b4 Rb8-e8 b4-b5 Re8-h8 Nf3-d4 Kd6-e7 a4-a5 Rh8-a8 Nd4-f3 Ke7-f6 a5-a6 Ra8-a7 b5-b6
30/36+ 00:21 333,261k 15,428k +36.00 e2-e3
30/36+ 00:22 348,738k 15,420k +36.08 e2-e3
30/37+ 00:29 449,544k 15,425k +37.95 e2-e3
30/37 00:30 463,181k 15,428k +38.12 e2-e3 Qd8-d6 Qd1-f3 Ke8-d7 Qf3-b7+ Qd6-c7 Qb7xc7+ Kd7xc7 a2-a4 Kc7-d6 Ng1-f3 Rh8-a8 a4-a5 Kd6-e7 b2-b4 Ke7-e6 Nb1-c3 Ke6-f6 a5-a6 Kf6-g7 a6-a7 Kg7-h7 b4-b5 Kh7-g7 b5-b6 Kg7-h8 b6-b7
31/27+ 00:34 527,158k 15,469k +38.20 e2-e3
31/27+ 00:34 540,586k 15,482k +38.28 e2-e3
31/36+ 00:46 744,736k 15,950k +40.87 e2-e3
31/36 00:48 775,039k 16,052k +40.91 e2-e3 Qd8-a5 Qd1-g4 Rh8-h5 Qg4-c8+ Qa5-d8 Qc8xd8+ Ke8xd8 a2-a4 Rh5-h4 Ng1-f3 Rh4-h7 Nb1-c3 Rh7-a7 b2-b4 Kd8-e7 a4-a5 Ke7-d8 b4-b5 Kd8-e7 b5-b6 Ra7-a8 a5-a6 Ke7-f6 a6-a7 Kf6-g7 b6-b7
32/27+ 00:52 854,140k 16,132k +41.00 e2-e3
32/27+ 00:53 862,635k 16,121k +41.08 e2-e3
32/37+ 01:08 1,133,641k 16,465k +43.67 e2-e3
32/37 01:11 1,180,384k 16,534k +44.47 e2-e3 Qd8-f6 Qd1-f3 O-O Qf3xf6 Rf8xf6 Nb1-c3 Kg8-g7 a2-a4 Rf6-f7 Ng1-f3 Rf7-a7 a4-a5 Kg7-g6 b2-b4 Kg6-f7 a5-a6 Kf7-e7 b4-b5 Ke7-f6 b5-b6 Ra7-a8 b6-b7 Ra8-e8 Nc3-d5+ Kf6-g6 a6-a7 Kg6-f7 Nd5-c3
33/23+ 01:17 1,306,121k 16,748k +44.55 e2-e3
33/23+ 01:20 1,357,206k 16,821k +44.63 e2-e3
33/44+ 01:44 1,826,171k 17,408k +47.23 e2-e3
33/44 01:47 1,874,761k 17,444k +47.31 e2-e3 Qd8-d5 Qd1-g4 Rh8-h5 Qg4-c8+ Qd5-d8 Qc8xd8+ Ke8xd8 a2-a4 Rh5-h7 a4-a5 Rh7-b7 Nb1-c3 Kd8-e7 a5-a6 Rb7-a7 Ng1-f3 Ke7-f7 b2-b4 Ra7-a8 b4-b5 Kf7-f6 Nc3-d5+ Kf6-g7 a6-a7 Kg7-h8 Bc1-b2+ Kh8-g8 Bf1-d3 Kg8-f8
34/42+ 01:51 1,938,438k 17,458k +47.39 e2-e3
34/42+ 01:52 1,974,970k 17,495k +47.48 e2-e3
34/42+ 01:57 2,045,723k 17,475k +48.35 e2-e3
34/42 01:58 2,076,134k 17,459k +48.15 e2-e3 Qd8-d7 Qd1-f3 Rh8-f8 Qf3-e4+ Ke8-d8 Nb1-c3 Qd7-f5 Qe4-a8+ Qf5-c8 Qa8xc8+ Kd8xc8 a2-a4 Rf8-f7 Ng1-f3 Kc8-d8 a4-a5 Rf7-a7 Nf3-d4 Kd8-e8 a5-a6 Ke8-f7 Nd4-f3 Kf7-f8 b2-b4 Kf8-f7 b4-b5 Kf7-e6 b5-b6 Ra7-a8 b6-b7
35/31+ 01:59 2,081,406k 17,451k +48.23 e2-e3
35/31+ 01:59 2,083,185k 17,448k +48.31 e2-e3
35/42+ 02:02 2,137,125k 17,427k +56.50 e2-e3
35/42 02:02 2,137,239k 17,427k +53.16 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Qc6-d7+ Kf7-g8 Bf1-c4+ Kg8-h8 Qd7-h3+ Kh8-g7 b2-b3 Qg5-f6 Qh3-g4+ Kg7-h8 Ng1-f3 Rf8-b8 Qg4-h3+ Kh8-g7 Qh3-d7+ Kg7-h6 Bc4-d3 Rb8-h8 Qd7-h3+ Kh6-g7 Qh3-g4+ Kg7-h6 Bc1-a3 Rh8-b8 Qg4-h3+ Qf6-h4 Qh3-e6+ Kh6-g7 Qe6-d7+ Kg7-g8 Qd7-d5+ Kg8-g7
36/45+ 02:03 2,152,952k 17,414k +53.25 e2-e3
36/46+ 02:03 2,152,996k 17,414k +53.33 e2-e3
36/46+ 02:07 2,215,701k 17,389k +59.53 e2-e3
36/46 02:07 2,217,002k 17,389k +55.58 e2-e3 Qd8-g5 Qd1-f3 Rh8-f8 Qf3-c6+ Ke8-f7 Qc6-d7+ Kf7-g8 Bf1-c4+ Kg8-h8 Qd7-h3+ Kh8-g7 b2-b3 Qg5-f6 Qh3-g4+ Kg7-h6 Ng1-f3 Qf6-f5 Qg4-g3 Qf5-c5 Qg3-h3+ Qc5-h5 Nf3-h4 Rf8-f6 Bc1-b2 Rf6-b6 Nh4-f5+ Kh6-g6 Nf5-e7+ Kg6-h6 Ne7-g8+ Kh6-g6 Bc4-d3+ Kg6-f7 Qh3xh5+ Kf7-f8 Bb2-a3+ Kf8xg8 Qh5-d5+ Kg8-g7
37/54+ 02:09 2,244,502k 17,338k +55.66 e2-e3
37/54+ 02:09 2,245,130k 17,337k +55.74 e2-e3
37/54+ 02:13 2,312,594k 17,278k +66.38 e2-e3
37/54 02:14 2,315,182k 17,277k +65.43 e2-e3 Qd8-d7 Qd1-f3 Rh8-f8 Qf3-e4+ Ke8-d8 Nb1-c3 Qd7-f5 Qe4-d4+ Qf5-d7 Nc3-d5 Qd7-d6 b2-b3 Rf8-e8 Qd4-h4+ Kd8-c8 Qh4-a4 Re8-e6 Qa4-a8+ Qd6-b8 Bf1-a6+ Kc8-d7 Ba6-b5+ Qb8xb5 Qa8-a7+ Kd7-e8 Nd5-c7+ Ke8-f7 Nc7xe6+ Kf7xe6 Bc1-a3
38/45+ 02:15 2,347,203k 17,259k +65.51 e2-e3
38/53+ 02:16 2,355,176k 17,252k +65.59 e2-e3
38/53+ 02:20 2,421,106k 17,204k +73.70 e2-e3
38/53 02:20 2,422,741k 17,203k +74.28 e2-e3 Qd8-d6 Qd1-g4 Ke8-d8 Nb1-c3 Rh8-f8 Bf1-c4 Rf8-f6 Qg4-g8+ Rf6-f8 Qg8-g7 Rf8-f5 Nc3-d5 Rf5-e5 Qg7-a7 Kd8-e8 Ng1-f3 Re5xd5 Bc4xd5 Qd6xd5 Qa7-b8+ Ke8-f7 Nf3-e5+ Kf7-g7 Qb8-c7+ Kg7-h6 Qc7-c6+ Qd5xc6 Ne5xc6 Kh6-h7
39/54+ 02:25 2,491,432k 17,177k +74.36 e2-e3
39/54+ 02:25 2,498,309k 17,175k +74.44 e2-e3
39/54+ 02:37 2,697,016k 17,110k +77.97 e2-e3
39/54 02:38 2,707,158k 17,109k +78.59 e2-e3 Qd8-d7 Qd1-f3 Rh8-f8 Qf3-e4+ Ke8-d8 Nb1-c3 Rf8-f5 Bf1-b5 Rf5xb5 Qe4-a8+ Kd8-c7 Nc3xb5+ Qd7xb5 Qa8-a7+ Kc7-c8 Ng1-f3 Qb5-c6 Nf3-e5 Qc6-d6 Qa7-a8+ Kc8-c7 Qa8-e8 Kc7-b7 Qe8-d7+ Qd6xd7 Ne5xd7 Kb7-a6 Nd7-e5 Ka6-a7 Ne5-f3 Ka7-b6 Nf3-d4 Kb6-a7 a2-a4
40/46+ 02:44 2,815,213k 17,092k +78.67 e2-e3
40/46+ 02:45 2,827,703k 17,090k +78.75 e2-e3
40/46+ 02:49 2,904,505k 17,094k +80.62 e2-e3
40/46 02:52 2,943,610k 17,095k +80.95 e2-e3 Qd8-d7 Qd1-f3 Rh8-f8 Qf3-e4+ Ke8-d8 Nb1-c3 Rf8-f5 Bf1-b5 Rf5xb5 Qe4-a8+ Kd8-e7 Nc3xb5 Qd7xb5 Qa8-e4+ Ke7-f7 Ng1-f3 Qb5-b6 b2-b3 Qb6-f6 Bc1-b2 Qf6xb2 Nf3-e5+ Kf7-f6 Qe4-g6+ Kf6xe5 Qg6-g7+ Ke5-d6 Qg7xb2 Kd6-c7 Qb2-a3 Kc7-c6 Qa3-e7 Kc6-d5 Qe7-d7+ Kd5-e5 Qd7-c7+ Ke5-f6 Qc7-h7
41/48+ 02:57 3,040,937k 17,091k +81.03 e2-e3
41/48+ 03:00 3,088,209k 17,086k +81.12 e2-e3
41/50+ 03:40 3,778,000k 17,155k +84.64 e2-e3
41/50 03:44 3,862,424k 17,171k +84.75 e2-e3 Qd8-d7 Qd1-f3 Rh8-f8 Qf3-e4+ Ke8-d8 Nb1-c3 Rf8-e8 Qe4-h4+ Re8-e7 Qh4-f6 Qd7-e6 Qf6-h8+ Re7-e8 Qh8-d4+ Qe6-d7 Nc3-d5 Re8-e6 Qd4-h8+ Qd7-e8 Qh8-h4+ Kd8-c8 Qh4-c4+ Kc8-b8 Qc4-c7+ Kb8-a8 Nd5-b6+ Re6xb6 Qc7xb6 Qe8-f8 Qb6-c6+ Ka8-b8 Bf1-a6 Qf8-f7 Ba6-b5 Qf7-b7 Qc6xb7+ Kb8xb7 Bb5-d7 Kb7-b8 a2-a4 Kb8-a7
42/54+ 03:50 3,962,939k 17,196k +84.84 e2-e3
42/54+ 03:52 4,001,614k 17,208k +84.92 e2-e3
42/54+ 04:25 4,596,817k 17,302k +86.79 e2-e3
42/54 04:36 4,788,084k 17,341k +87.05 e2-e3 Qd8-d7 Qd1-f3 Rh8-f8 Qf3-e4+ Ke8-d8 Nb1-c3 Rf8-e8 Qe4-a8+ Kd8-c7 Qa8-a7+ Kc7-d8 Qa7-a5+ Qd7-c7 Qa5-a8+ Qc7-c8 Qa8-a3 Qc8-b7 Bf1-b5 Re8-e7 Qa3-c5 Qb7-c7 Qc5-f5 Qc7-d6 Qf5-f8+ Kd8-c7 Nc3-d5+ Qd6xd5 Qf8xe7+ Kc7-c8 Bb5-d3 Qd5-d7 Qe7xd7+ Kc8xd7 a2-a4 Kd7-e6 b2-b3 Ke6-f6 a4-a5 Kf6-g5 Bd3-f1 Kg5-f6
43/52+ 04:40 4,868,775k 17,362k +87.13 e2-e3
43/56+ 04:41 4,887,796k 17,368k +87.21 e2-e3
43/56+ 05:43 6,028,161k 17,535k +89.81 e2-e3
43/56 05:54 6,214,719k 17,547k +90.24 e2-e3 Qd8-d7 Qd1-f3 Rh8-f8 Qf3-e4+ Ke8-d8 Nb1-c3 Rf8-e8 Qe4-a8+ Qd7-c8 Qa8-a3 Qc8-b7 Bf1-b5 Re8-e7 Qa3-d6+ Qb7-d7 Qd6-f4 Re7-g7 Qf4-f6+ Qd7-e7 Qf6-f3 Qe7-d7 Qf3-a8+ Qd7-c8 Qa8-d5+ Rg7-d7 Qd5-g8+ Kd8-c7 Qg8xc8+ Kc7xc8 Bb5xd7+ Kc8xd7 a2-a4 Kd7-d6 a4-a5 Kd6-e7 a5-a6 Ke7-d6 Ng1-f3 Kd6-e6 a6-a7 Ke6-d6 a7-a8Q
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Pi4Chess
Posts: 253
Joined: Mon Nov 16, 2020 12:13 pm
Full name: Manuel Rivera

Re: why did they destroy stockfish in finding mates

Post by Pi4Chess »

Good question...

May be since Stockfish plays against himself more than against other engines for tuning and self-learning he is not used anymore to find those kind of positions :p
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MikeB
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Re: why did they destroy stockfish in finding mates

Post by MikeB »

I think you know this and were not looking for an answer as you asked a loaded question — but there is never a patch that is made with the idea that it will solve mate faster, although at times it may be a byproduct , it's all about Elo, Elo and Elo.

Did I mention Elo?

[d]4k3/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1
BD v12-R2.08
32 #15 10.2G 1:16.02 e3 g6 Qf3 c6 Qf4 d6 Bc4 Kd7 Qxf7 d5 Be2 Kd6 Bg4 a5 Qe6+ Kc7 Qxe7+ Kb8 Qd8+ Ka7 Bc8 a4 Qc7 Ka6 Qxb7+ Ka5 b4+ axb3 axb3#
31 #15 9.29G 1:08.61 e3 g6 Qf3 c6 Qf4 d6 Bc4 Kd7 Qxf7 d5 Be2 Kd6 Bg4 a5 Qe6+ Kc7 Qxe7+ Kb8 Qd8+ Ka7 Bc8 a4 Qc7 Ka6 Qxb7+ Ka5 b4+ axb3 axb3#
30 #21 7.19G 0:52.38 e3 g6 Qf3 c6 Qf4 d6 Qd4 a5 Qh8+ Kd7 Qxh7 f5 Qxg6 f4 Qf5+ Kd8 Qxf4 Ke8 Nf3 a4 Qf5 Kd8 Qf7 a3 Nxa3 Kc7 Qxe7+ Kb6 Qd8+ Ka7 Ng1 d5 Nb5+ cxb5
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MikeB
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Re: why did they destroy stockfish in finding mates

Post by MikeB »

Uri Blass wrote: ↑Tue Dec 01, 2020 2:28 am example 2 of not trivial mate position

the old stockfish from 1.6.2020 found mate in 20
[d]3qk2r/8/8/8/8/8/PPPPPPPP/RNBQKBNR w KQk - 0 1]
<snip>
BD sees mate-in-19, time is not correct due to mouse slip, it took about 5 minutes initally.

mover viewpoint fewer / Multi-PV setting = 1 / more
exclude: none best +tail
dep score nodes time (not shown: tbhits knps seldep)
43 #19 2.74G 0:20.83 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
42 #19 2.74G 0:20.82 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
41 #19 2.74G 0:20.82 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
40 #19 2.74G 0:20.81 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
39 #19 2.73G 0:20.80 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
38 #19 2.73G 0:20.80 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
37 #19 2.73G 0:20.79 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
36 #19 2.73G 0:20.77 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
35 #19 2.73G 0:20.76 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
34 #19 2.73G 0:20.75 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
33 #19 2.73G 0:20.75 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
32 #19 2.73G 0:20.75 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
31 #19 2.73G 0:20.75 e3 Qd7 Qf3 Rf8 Qe4+ Kd8 Nf3 Qf5 Qh4+ Kc8 Nc3 Qe6 Qa4 Qd6 Qa8+ Qb8 Ba6+ Kd7 Qd5+ Ke7 Qc5+ Qd6 Nd5+ Kd7 Bb5+ Ke6 Ng5+ Ke5 d4+ Kf5 Qxd6 Kxg5 h4+ Kf5 Ne7+ Kg4 Qg6#
30 17 seconds
30 7 seconds
30 #19 23.0M 0:00.19 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8 a7 Kc8 a8=Q#
29 #19 13.3M 0:00.11 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8 a7 Kc8 a8=Q#
28 #19 7.50M 0:00.06 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8 a7 Kc8 a8=Q#
27 #19 6.49M 0:00.06 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8 a7 Kc8 a8=Q#
26 #19 5.90M 0:00.05 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8 a7 Kc8 a8=Q#
25 #19 4.63M 0:00.04 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8 a7 Kc8 a8=Q#
24 #19 4.42M 0:00.04 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8 a7 Kc8 a8=Q#
23 #19 3.53M 0:00.03 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8 a7 Kc8
22 #19 3.16M 0:00.03 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8 a7
21 #19 2.70M 0:00.02 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8 Nd5 Kd8 Bc6 Kc8 a4 Kb8 a5 Kc8 a6 Kd8
20 #19 2.36M 0:00.02 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bb5+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Ka7 Qxf8 Qb6 Bd3 Qb7 Qd8 Qb6 Nb5+ Kb7 Be4+ Ka6 Qa8+ Kxb5 a4+ Kc5 Qd5+ Kb4 c3#
19 #21 1.79M 0:00.02 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Qd5+ Ka7 Qc6 Rf5 Nb5+ Rxb5 Bxb5 Kb8 Qb6+ Kc8 Nf3 Qc7 Qe6+ Kb7 Ne5
18 #21 1.57M 0:00.01 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Qd5+ Ka7 Qc6 Rf5 Nb5+ Rxb5 Bxb5 Kb8 Qb6+ Kc8 Nf3 Qc7 Qe6+ Kb7
17 #21 1.30M 0:00.01 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Qd5+ Ka7 Qc6 Rf5 Nb5+ Rxb5 Bxb5 Kb8 Qb6+ Kc8 Nf3 Qc7
16 #21 1.20M 0:00.01 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Qd5+ Ka7 Qc6 Rf5 Nb5+ Rxb5 Bxb5 Kb8 Qb6+ Kc8 Nf3
15 #22 1.10M 0:00.01 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bc4+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qb4+ Qb7 Qxb7+ Kxb7 a4
14 #22 1.04M 0:00.01 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bc4+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qd6+ Qc7 Qd4 Qc6 Nb5
13 #21 968140 0:00.01 e3 Rf8 Qh5+ Kd7 Nc3 Qe7 Qd5+ Kc7 Qa5+ Kb7 Ba6+ Ka8 Bc4+ Kb7 Qa6+ Kb8 Qb6+ Qb7 Qd6+ Qc7 Qxf8+ Qc8 Qxc8+ Kxc8
12 #20 835304 0:00.01 e3 Rf8 Qh5+ Kd7 Nc3 Ke7 Qh4+ Kd7 Qd4+ Ke8 Qg7 Qe7 Bb5+ Kd8 Qd4+ Kc8 Ba6+ Kb8 Qb6+ Ka8 Qc6+ Kb8 Nd5
11 #19 472612 0:00.01 e3 Rf8 Qh5+ Kd7 Nc3 Ke7 Nd5+ Ke6 Qg6+ Rf6 Qxf6+ Qxf6 Nxf6 Kf7 Bc4+ Kg7
10 #20 358555 0:00.00 e3 Rf8 Qh5+ Kd7 Nc3 Ke7 Qh4+ Kd7 Qh7+ Qe7 Bb5+ Kd8 Qd3+ Kc7 Nd5+ Kb7 Nxe7
9 #20 326387 0:00.00 e3 Rf8 Qh5+ Kd7 Nc3 Ke7 Qh4+ Kd7 Qh7+ Qe7 Bb5+ Kd8 Qd3+ Kc7 Nd5+ Kb7 Nxe7 Kb6 Qd7
8 #19 183333 0:00.00 e3 Rf8 Qh5+ Kd7 Nc3 Qf6 Nf3 Ra8 Qd5+ Ke7
7 +21.11 111495 0:00.00 e3 Rf8 Qh5+ Kd7 Qd5+ Kc7 Qa5+ Kc8 Qxd8+ Rxd8 h3
6 +21.13 93802 0:00.00 e3 Rf8 Qh5+ Kd7 Qd5+ Kc7 Qa5+ Kd6 Qxd8+ Rxd8
5 +21.14 77036 0:00.00 e3 Rf8 Qh5+ Kd7 Qd5+ Kc7 Qa5+ Kd6
4 +21.14 61161 0:00.00 e3 Rf8 Qh5+ Kd7 Qd5+ Kc7
3 +21.20 50471 0:00.00 e3 Rf8 Qh5+ Kd7 Qd5+ Kc7
2 +21.26 41989 0:00.00 e3 Rf8
1 NNUE evaluation using eval.bin enabled
1 +21.26 32147 0:00.00 e3
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mwyoung
Posts: 2727
Joined: Wed May 12, 2010 10:00 pm

Re: why did they destroy stockfish in finding mates

Post by mwyoung »

MikeB wrote: ↑Tue Dec 01, 2020 3:01 am I think you know this and were not looking for an answer as you asked a loaded question — but there is never a patch that is made with the idea that it will solve mate faster, although at times it may be a byproduct , it's all about Elo, Elo and Elo.

Did I mention Elo?

[d]4k3/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1
BD v12-R2.08
32 #15 10.2G 1:16.02 e3 g6 Qf3 c6 Qf4 d6 Bc4 Kd7 Qxf7 d5 Be2 Kd6 Bg4 a5 Qe6+ Kc7 Qxe7+ Kb8 Qd8+ Ka7 Bc8 a4 Qc7 Ka6 Qxb7+ Ka5 b4+ axb3 axb3#
31 #15 9.29G 1:08.61 e3 g6 Qf3 c6 Qf4 d6 Bc4 Kd7 Qxf7 d5 Be2 Kd6 Bg4 a5 Qe6+ Kc7 Qxe7+ Kb8 Qd8+ Ka7 Bc8 a4 Qc7 Ka6 Qxb7+ Ka5 b4+ axb3 axb3#
30 #21 7.19G 0:52.38 e3 g6 Qf3 c6 Qf4 d6 Qd4 a5 Qh8+ Kd7 Qxh7 f5 Qxg6 f4 Qf5+ Kd8 Qxf4 Ke8 Nf3 a4 Qf5 Kd8 Qf7 a3 Nxa3 Kc7 Qxe7+ Kb6 Qd8+ Ka7 Ng1 d5 Nb5+ cxb5
I totally agree. The goal is always to get a better performing chess engine. We all like nice mate scores, but winning is and should always be King!
"The worst thing that can happen to a forum is a running wild attacking moderator(HGM) who is not corrected by the community." - Ed Schröder
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MikeB
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Re: why did they destroy stockfish in finding mates

Post by MikeB »

mwyoung wrote: ↑Tue Dec 01, 2020 3:30 am
MikeB wrote: ↑Tue Dec 01, 2020 3:01 am I think you know this and were not looking for an answer as you asked a loaded question — but there is never a patch that is made with the idea that it will solve mate faster, although at times it may be a byproduct , it's all about Elo, Elo and Elo.

Did I mention Elo?

[d]4k3/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1
BD v12-R2.08
32 #15 10.2G 1:16.02 e3 g6 Qf3 c6 Qf4 d6 Bc4 Kd7 Qxf7 d5 Be2 Kd6 Bg4 a5 Qe6+ Kc7 Qxe7+ Kb8 Qd8+ Ka7 Bc8 a4 Qc7 Ka6 Qxb7+ Ka5 b4+ axb3 axb3#
31 #15 9.29G 1:08.61 e3 g6 Qf3 c6 Qf4 d6 Bc4 Kd7 Qxf7 d5 Be2 Kd6 Bg4 a5 Qe6+ Kc7 Qxe7+ Kb8 Qd8+ Ka7 Bc8 a4 Qc7 Ka6 Qxb7+ Ka5 b4+ axb3 axb3#
30 #21 7.19G 0:52.38 e3 g6 Qf3 c6 Qf4 d6 Qd4 a5 Qh8+ Kd7 Qxh7 f5 Qxg6 f4 Qf5+ Kd8 Qxf4 Ke8 Nf3 a4 Qf5 Kd8 Qf7 a3 Nxa3 Kc7 Qxe7+ Kb6 Qd8+ Ka7 Ng1 d5 Nb5+ cxb5
I totally agree. The goal is always to get a better performing chess engine. We all like nice mate scores, but winning is and should always be King!
And there is a very simple solution, if one prefers the older version of SF , use it — no one has a gun to their head...
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Jouni
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Re: why did they destroy stockfish in finding mates

Post by Jouni »

Uri if You disable tablebases and NNUE stockfish is better.
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Jouni
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Re: why did they destroy stockfish in finding mates

Post by Jouni »

Forget last message and use Crystal or Eman.
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mhull
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Full name: Matthew Hull

Re: why did they destroy stockfish in finding mates

Post by mhull »

Uri Blass wrote: ↑Tue Dec 01, 2020 2:11 am I used the latest version of stockfish and it was very slow in finding mate....
Does the fact that a strong program can inadvertently prune some mating patterns out of its search tree leave an opening for humans?

What other patterns might strong programs be missing? Maybe such opportunities are too deep for humans to find to catch the program with it's digital pants down.
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