Dev Builds » 20210906-1159

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo
ncm-dbt-01 06:54:06 586006 4016 689 1343 1984 -57.09 ± 5.05 7 833 975 193 0 -116.08 ± 10.87
ncm-dbt-02 06:53:14 587968 4000 673 1340 1987 -58.48 ± 5.13 5 857 940 196 2 -119.89 ± 11.09
ncm-dbt-03 06:54:12 589020 4024 664 1367 1993 -61.33 ± 4.97 13 840 997 161 1 -124.38 ± 10.71
ncm-dbt-04 06:53:08 564837 3976 649 1341 1986 -61.09 ± 4.96 5 845 975 163 0 -125.22 ± 10.84
ncm-dbt-05 06:53:11 583333 3984 706 1328 1950 -54.69 ± 5.22 14 810 952 216 0 -109.53 ± 11.02
20000 3381 6719 9900 -58.53 ± 2.27 44 4185 4839 929 3 -118.99 ± 4.88

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
372666 ncm-dbt-01 582987 16 2 6 8 -88.68 ± 65.24 0 4 4 0 0 -190.76 ± 189.19
372665 ncm-dbt-03 587282 24 1 9 14 -120.36 ± 52.76 0 8 4 0 0 -279.5 ± 218.99
372664 ncm-dbt-04 566533 476 71 163 242 -68.01 ± 14.3 0 110 110 18 0 -141.66 ± 32.48
372663 ncm-dbt-05 578836 484 86 152 246 -47.67 ± 14.2 2 85 132 23 0 -94.12 ± 29.27
372662 ncm-dbt-02 587240 500 73 174 253 -71.16 ± 13.79 1 114 121 13 1 -148.85 ± 30.69
372661 ncm-dbt-01 585632 500 90 183 227 -65.38 ± 14.42 1 113 114 22 0 -134.15 ± 31.97
372660 ncm-dbt-03 587749 500 77 172 251 -66.82 ± 13.92 0 114 117 19 0 -138.99 ± 31.46
372659 ncm-dbt-04 566414 500 94 169 237 -52.51 ± 13.55 1 93 136 20 0 -106.01 ± 28.73
372658 ncm-dbt-05 583154 500 90 171 239 -56.78 ± 16.01 5 104 108 33 0 -109.07 ± 32.85
372657 ncm-dbt-02 588728 500 89 169 242 -56.07 ± 14.56 0 107 116 27 0 -115.23 ± 31.71
372656 ncm-dbt-03 596285 500 82 179 239 -68.27 ± 13.83 1 111 123 14 1 -142.26 ± 30.43
372655 ncm-dbt-01 585674 500 81 161 258 -56.07 ± 14.01 1 100 127 22 0 -113.68 ± 30.06
372654 ncm-dbt-04 564566 500 77 170 253 -65.38 ± 14.14 1 111 118 20 0 -134.15 ± 31.33
372653 ncm-dbt-05 583405 500 84 171 245 -61.07 ± 14.24 0 110 117 23 0 -126.18 ± 31.53
372652 ncm-dbt-02 587494 500 91 176 233 -59.64 ± 14.59 1 107 119 22 1 -123.02 ± 31.23
372651 ncm-dbt-03 588260 500 87 168 245 -56.78 ± 14.32 0 106 119 25 0 -116.78 ± 31.26
372650 ncm-dbt-01 586774 500 88 163 249 -52.51 ± 13.41 0 95 135 20 0 -107.54 ± 28.87
372649 ncm-dbt-04 563705 500 76 159 265 -58.21 ± 14.11 1 103 124 22 0 -118.33 ± 30.49
372648 ncm-dbt-05 581485 500 102 164 234 -43.3 ± 15.08 0 98 116 36 0 -88.0 ± 31.71
372647 ncm-dbt-02 586985 500 93 160 247 -46.84 ± 15.01 1 98 118 33 0 -93.95 ± 31.44
372646 ncm-dbt-03 587579 500 77 167 256 -63.23 ± 14.2 3 103 125 19 0 -126.18 ± 30.27
372645 ncm-dbt-01 586689 500 92 182 226 -63.23 ± 14.34 2 107 120 21 0 -127.76 ± 31.05
372644 ncm-dbt-04 565390 500 79 159 262 -56.07 ± 14.15 1 101 125 23 0 -113.68 ± 30.37
372643 ncm-dbt-05 583698 500 77 163 260 -60.36 ± 14.49 2 105 120 23 0 -121.46 ± 31.09
372642 ncm-dbt-03 587028 500 85 161 254 -53.22 ± 13.73 0 98 130 22 0 -109.07 ± 29.63
372641 ncm-dbt-02 588558 500 68 166 266 -68.99 ± 14.7 0 122 104 24 0 -143.89 ± 33.53
372640 ncm-dbt-01 586943 500 79 168 253 -62.51 ± 14.44 2 107 119 22 0 -126.18 ± 31.22
372639 ncm-dbt-04 563900 500 80 175 245 -66.82 ± 13.77 0 113 119 18 0 -138.99 ± 31.13
372638 ncm-dbt-05 582193 500 90 165 245 -52.51 ± 13.55 0 96 133 21 0 -107.54 ± 29.18
372637 ncm-dbt-02 586816 500 91 174 235 -58.21 ± 14.25 2 101 125 22 0 -116.78 ± 30.34
372636 ncm-dbt-03 587494 500 83 176 241 -65.38 ± 14.14 4 102 127 17 0 -129.35 ± 29.91
372635 ncm-dbt-01 586774 500 90 159 251 -48.25 ± 14.03 0 95 129 26 0 -98.44 ± 29.86
372634 ncm-dbt-04 564057 500 80 172 248 -64.66 ± 13.54 0 109 124 17 0 -134.15 ± 30.35
372633 ncm-dbt-05 585126 500 86 171 243 -59.64 ± 14.59 1 108 116 25 0 -121.46 ± 31.7
372632 ncm-dbt-03 589710 500 87 169 244 -57.5 ± 14.76 3 101 121 25 0 -113.68 ± 30.97
372631 ncm-dbt-01 587707 500 74 161 265 -61.07 ± 14.24 0 110 117 23 0 -126.18 ± 31.53
372630 ncm-dbt-02 587792 500 80 167 253 -61.07 ± 13.96 0 108 121 21 0 -126.18 ± 30.9
372629 ncm-dbt-04 564135 500 92 174 234 -57.5 ± 14.49 1 105 119 25 0 -116.78 ± 31.26
372628 ncm-dbt-05 588771 500 91 171 238 -56.07 ± 15.73 4 104 110 32 0 -109.07 ± 32.57
372627 ncm-dbt-01 584874 500 93 160 247 -46.84 ± 15.52 1 102 110 37 0 -93.95 ± 32.53
372626 ncm-dbt-03 589796 500 85 166 249 -56.78 ± 13.91 2 97 131 20 0 -113.68 ± 29.44
372625 ncm-dbt-02 590138 500 88 154 258 -46.13 ± 14.98 0 100 116 34 0 -93.95 ± 31.72

Commit

Commit ID e404a7d97c94890dda18ca3a16cfd15b5a7ef235
Author Michael Chaly
Date 2021-09-06 11:59:17 UTC
Extend captures and promotions This patch introduces extension for captures and promotions. Every capture or promotion that is not the first move in the list gets extended at PvNodes and cutNodes. Special thanks to @locutus2 - all my previous attepmts that failed on this idea were done only for PvNodes - idea to include also cutNodes was based on his latest passed patch. STC https://tests.stockfishchess.org/tests/view/6134abf325b9b35584838574 LLR: 2.95 (-2.94,2.94) <-0.50,2.50> Total: 188920 W: 47754 L: 47304 D: 93862 Ptnml(0-2): 595, 21754, 49344, 22140, 627 LTC https://tests.stockfishchess.org/tests/view/613521de25b9b355848385d7 LLR: 2.93 (-2.94,2.94) <0.50,3.50> Total: 8768 W: 2283 L: 2098 D: 4387 Ptnml(0-2): 7, 866, 2452, 1053, 6 closes https://github.com/official-stockfish/Stockfish/pull/3692 bench: 5564555
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