Dev Builds » 20251101-1029

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 06:45:53 580654 3998 1640 427 1931 +108.84 ± 4.72 4 53 681 1248 13 +242.08 ± 13.03
ncm-dbt-02 06:43:31 585644 4000 1654 414 1932 +111.37 ± 4.74 1 62 649 1272 16 +247.69 ± 13.37
ncm-dbt-03 06:45:22 584856 4002 1647 440 1915 +108.15 ± 4.69 0 54 707 1219 21 +236.89 ± 12.77
ncm-dbt-04 06:42:31 565326 4000 1675 433 1892 +111.56 ± 4.82 1 60 664 1246 29 +244.65 ± 13.21
ncm-dbt-05 06:45:15 582346 4000 1627 434 1939 +106.87 ± 4.7 2 57 699 1230 12 +236.25 ± 12.85
20000 8243 2148 9609 +109.35 ± 2.12 8 286 3400 6215 91 +241.48 ± 5.83

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
439053 ncm-dbt-03 582736 2 0 0 2 0.0 ± 34.02 0 0 1 0 0 0.0 ± 30.47
439052 ncm-dbt-01 578588 498 207 65 226 +101.89 ± 13.24 0 8 92 148 1 +223.06 ± 35.6
439051 ncm-dbt-02 586308 500 213 53 234 +115.23 ± 13.88 1 6 79 160 4 +256.44 ± 38.62
439050 ncm-dbt-05 581236 500 203 61 236 +101.46 ± 14.48 0 15 80 153 2 +219.87 ± 38.28
439049 ncm-dbt-04 567047 500 206 48 246 +113.68 ± 13.38 0 7 81 159 3 +251.89 ± 38.11
439048 ncm-dbt-03 585717 500 213 61 226 +109.07 ± 13.23 0 6 89 152 3 +238.66 ± 36.16
439047 ncm-dbt-01 582193 500 203 51 246 +109.07 ± 14.37 2 5 87 151 5 +238.66 ± 36.67
439046 ncm-dbt-02 585421 500 211 49 240 +116.77 ± 13.19 0 5 82 159 4 +258.75 ± 37.76
439045 ncm-dbt-05 582318 500 207 49 244 +113.68 ± 12.5 0 4 85 160 1 +256.44 ± 36.95
439044 ncm-dbt-04 562107 500 210 61 229 +106.77 ± 15.42 0 15 79 148 8 +221.9 ± 38.51
439043 ncm-dbt-03 583992 500 220 48 232 +124.6 ± 12.53 0 3 75 169 3 +285.49 ± 39.5
439042 ncm-dbt-02 586054 500 205 53 242 +109.07 ± 13.89 0 12 75 162 1 +243.0 ± 39.61
439041 ncm-dbt-01 583740 500 202 54 244 +106.01 ± 12.71 0 5 93 151 1 +234.38 ± 35.22
439040 ncm-dbt-04 563783 500 217 64 219 +109.83 ± 13.4 0 8 83 157 2 +243.0 ± 37.64
439039 ncm-dbt-05 579372 500 188 64 248 +88.0 ± 13.03 0 9 108 133 0 +189.0 ± 32.58
439038 ncm-dbt-03 581153 500 200 54 246 +104.49 ± 13.05 0 5 97 145 3 +226.0 ± 34.38
439037 ncm-dbt-02 586477 500 206 51 243 +111.37 ± 13.39 0 9 78 162 1 +249.64 ± 38.9
439036 ncm-dbt-01 580157 500 201 48 251 +109.83 ± 12.7 0 6 85 159 0 +247.41 ± 37.09
439035 ncm-dbt-04 563470 500 208 56 236 +109.07 ± 13.05 0 6 88 154 2 +240.82 ± 36.39
439034 ncm-dbt-03 585548 500 206 54 240 +109.07 ± 13.05 0 5 91 151 3 +238.66 ± 35.65
439033 ncm-dbt-05 577151 500 198 62 240 +96.94 ± 14.12 2 8 93 146 1 +213.85 ± 35.47
439032 ncm-dbt-02 583237 500 212 55 233 +112.91 ± 13.56 0 7 83 156 4 +247.41 ± 37.61
439031 ncm-dbt-04 568593 500 211 54 235 +112.91 ± 13.56 1 5 83 158 3 +251.89 ± 37.57
439030 ncm-dbt-03 585717 500 209 60 231 +106.77 ± 13.72 0 7 92 146 5 +228.08 ± 35.56
439029 ncm-dbt-01 581111 500 206 53 241 +109.83 ± 13.23 0 8 82 159 1 +245.2 ± 37.88
439028 ncm-dbt-05 585211 500 207 60 233 +105.25 ± 13.88 0 11 83 154 2 +230.16 ± 37.67
439027 ncm-dbt-02 586139 500 200 51 249 +106.77 ± 12.88 0 7 87 156 0 +238.66 ± 36.67
439026 ncm-dbt-04 563119 500 210 46 244 +118.33 ± 12.44 0 3 82 163 2 +268.17 ± 37.61
439025 ncm-dbt-01 578095 500 211 54 235 +112.91 ± 12.86 0 5 85 158 2 +251.89 ± 37.03
439024 ncm-dbt-03 585337 500 198 50 252 +106.01 ± 12.88 0 7 88 155 0 +236.51 ± 36.44
439023 ncm-dbt-05 576987 500 201 44 255 +112.91 ± 12.69 0 5 84 160 1 +254.16 ± 37.27
439022 ncm-dbt-02 585042 500 205 46 249 +114.45 ± 13.72 0 11 70 168 1 +258.75 ± 41.02
439021 ncm-dbt-04 566770 500 209 47 244 +116.77 ± 13.54 0 7 78 161 4 +258.75 ± 38.88
439020 ncm-dbt-05 582652 500 214 54 232 +115.22 ± 12.48 0 2 89 156 3 +256.44 ± 35.8
439019 ncm-dbt-03 586435 500 200 62 238 +98.44 ± 13.83 0 13 86 151 0 +215.85 ± 36.98
439018 ncm-dbt-01 579537 500 211 51 238 +115.22 ± 13.88 0 10 73 164 3 +256.44 ± 40.21
438974 ncm-dbt-01 581818 500 199 51 250 +106.01 ± 13.72 2 6 84 158 0 +240.82 ± 37.4
438973 ncm-dbt-03 587070 500 201 51 248 +107.54 ± 13.73 0 8 88 150 4 +232.26 ± 36.48
438972 ncm-dbt-04 567720 500 204 57 239 +105.25 ± 14.04 0 9 90 146 5 +223.94 ± 36.07
438971 ncm-dbt-02 586477 500 202 56 242 +104.49 ± 12.71 0 5 95 149 1 +230.16 ± 34.79
438970 ncm-dbt-05 593846 500 209 40 251 +122.24 ± 12.38 0 3 77 168 2 +280.42 ± 38.93

Commit

Commit ID c9a2aff48529d5b624cb60c9e70354dacad39a57
Author Daniel Monroe
Date 2025-11-01 10:29:47 UTC
Simplify correction update condition Passed non-regression STC LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 95136 W: 24722 L: 24564 D: 45850 Ptnml(0-2): 307, 11139, 24522, 11289, 311 https://tests.stockfishchess.org/tests/view/68e5034ea017f472e763dc5a Passed non-regression LTC LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 256440 W: 65854 L: 65873 D: 124713 Ptnml(0-2): 144, 28287, 71375, 28272, 142 https://tests.stockfishchess.org/tests/view/68e71ae4a017f472e763e291 closes https://github.com/official-stockfish/Stockfish/pull/6375 bench 2216361
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