Dev Builds » 20251114-1630

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 06:45:16 581800 4000 1697 402 1901 +116.68 ± 4.6 0 46 631 1305 18 +262.54 ± 13.54
ncm-dbt-02 06:45:15 585063 3988 1702 403 1883 +117.45 ± 4.66 0 52 610 1313 19 +264.55 ± 13.79
ncm-dbt-03 06:44:32 585807 4000 1669 391 1940 +115.03 ± 4.65 0 46 654 1276 24 +255.87 ± 13.29
ncm-dbt-04 06:45:43 566802 4012 1711 418 1883 +116.11 ± 4.68 1 40 662 1271 32 +257.08 ± 13.19
ncm-dbt-05 06:46:06 582058 4000 1664 444 1892 +109.45 ± 4.73 0 58 685 1236 21 +240.55 ± 12.99
20000 8443 2058 9499 +114.94 ± 2.09 1 242 3242 6401 114 +255.99 ± 5.97

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
440996 ncm-dbt-04 566414 12 6 2 4 +120.31 ± 75.55 0 0 2 4 0 +279.41 ± 548.26
440995 ncm-dbt-02 586477 488 208 47 233 +119.08 ± 12.61 0 4 76 163 1 +272.84 ± 39.27
440994 ncm-dbt-05 579413 500 211 56 233 +111.37 ± 13.39 0 5 90 150 5 +240.82 ± 35.87
440993 ncm-dbt-01 582861 500 200 52 248 +106.01 ± 14.2 0 13 78 157 2 +232.26 ± 38.82
440992 ncm-dbt-03 582152 500 207 61 232 +104.49 ± 13.71 0 8 92 146 4 +223.94 ± 35.61
440991 ncm-dbt-04 567324 500 220 61 219 +114.45 ± 13.55 0 7 81 158 4 +251.89 ± 38.11
440990 ncm-dbt-02 581860 500 222 55 223 +120.67 ± 13.67 0 7 74 164 5 +268.17 ± 39.97
440989 ncm-dbt-01 579083 500 216 50 234 +119.89 ± 12.04 0 2 81 166 1 +275.45 ± 37.75
440988 ncm-dbt-05 580323 500 202 51 247 +108.3 ± 14.68 0 14 75 157 4 +234.38 ± 39.52
440987 ncm-dbt-03 585211 500 210 53 237 +112.91 ± 13.89 0 11 73 164 2 +251.89 ± 40.18
440986 ncm-dbt-04 567047 500 210 56 234 +110.6 ± 13.05 0 5 89 153 3 +243.0 ± 36.1
440985 ncm-dbt-02 588132 500 210 54 236 +112.14 ± 13.39 0 8 80 160 2 +249.64 ± 38.38
440984 ncm-dbt-03 586139 500 205 46 249 +114.45 ± 13.38 0 7 80 160 3 +254.16 ± 38.36
440983 ncm-dbt-05 582068 500 207 54 239 +109.83 ± 13.4 0 8 83 157 2 +243.0 ± 37.64
440982 ncm-dbt-01 582945 500 217 46 237 +123.81 ± 12.73 0 3 77 166 4 +280.42 ± 38.93
440981 ncm-dbt-04 568037 500 204 48 248 +112.14 ± 13.39 0 6 86 154 4 +245.2 ± 36.85
440980 ncm-dbt-02 580779 500 211 52 237 +114.45 ± 13.03 0 6 81 161 2 +256.44 ± 38.07
440979 ncm-dbt-03 585590 500 212 56 232 +112.14 ± 12.51 0 2 93 152 3 +247.41 ± 34.91
440978 ncm-dbt-01 580779 500 217 49 234 +121.45 ± 12.58 0 4 76 168 2 +277.93 ± 39.29
440977 ncm-dbt-05 582569 500 211 58 231 +109.83 ± 13.05 0 6 87 155 2 +243.0 ± 36.62
440976 ncm-dbt-04 567997 500 215 52 233 +117.55 ± 13.0 0 3 86 156 5 +258.75 ± 36.62
440975 ncm-dbt-02 585885 500 216 53 231 +117.55 ± 12.82 0 6 76 167 1 +268.17 ± 39.39
440974 ncm-dbt-03 586139 500 212 57 231 +111.37 ± 13.73 0 10 77 161 2 +247.41 ± 39.15
440973 ncm-dbt-01 583447 500 204 54 242 +107.54 ± 13.06 0 5 93 149 3 +234.38 ± 35.22
440972 ncm-dbt-05 580987 500 203 54 243 +106.77 ± 13.72 0 10 83 155 2 +234.38 ± 37.67
440971 ncm-dbt-04 566849 500 210 61 229 +106.78 ± 13.89 1 7 87 152 3 +234.38 ± 36.71
440970 ncm-dbt-02 588089 500 218 51 231 +120.67 ± 13.15 0 6 74 167 3 +273.0 ± 39.95
440969 ncm-dbt-03 587197 500 207 33 260 +126.17 ± 12.49 0 1 79 165 5 +285.49 ± 38.15
440968 ncm-dbt-01 578506 500 211 52 237 +114.45 ± 13.03 0 5 84 158 3 +254.16 ± 37.27
440967 ncm-dbt-05 583698 500 207 62 231 +103.73 ± 12.88 0 6 94 149 1 +228.08 ± 35.08
440966 ncm-dbt-04 566296 500 214 42 244 +124.6 ± 12.9 0 4 74 168 4 +282.94 ± 39.86
440965 ncm-dbt-02 584832 500 199 49 252 +107.54 ± 13.56 0 10 81 158 1 +238.66 ± 38.15
440964 ncm-dbt-03 584453 500 203 46 251 +112.91 ± 12.69 0 5 84 160 1 +254.16 ± 37.27
440963 ncm-dbt-01 581361 500 213 55 232 +113.68 ± 13.38 0 9 75 165 1 +256.44 ± 39.69
440962 ncm-dbt-05 581943 500 209 57 234 +109.07 ± 13.23 0 6 89 152 3 +238.66 ± 36.16
440961 ncm-dbt-04 566770 500 212 55 233 +112.91 ± 12.86 0 4 88 155 3 +249.64 ± 36.24
440960 ncm-dbt-02 584453 500 218 42 240 +127.76 ± 13.02 0 5 68 173 4 +293.29 ± 41.75
440959 ncm-dbt-01 585421 500 219 44 237 +126.97 ± 12.66 0 5 67 176 2 +295.94 ± 42.08
440958 ncm-dbt-04 564487 500 220 41 239 +130.14 ± 13.16 0 4 69 171 6 +295.94 ± 41.39
440957 ncm-dbt-05 585464 500 214 52 234 +116.77 ± 12.47 0 3 84 161 2 +263.42 ± 37.11
440956 ncm-dbt-03 589582 500 213 39 248 +126.17 ± 12.49 0 2 76 168 4 +288.06 ± 39.11

Commit

Commit ID a191791f46735817e76d1ba29ec81a5304e16430
Author Daniel Monroe
Date 2025-11-14 16:30:55 UTC
Clean up code and comments closes https://github.com/official-stockfish/Stockfish/pull/6416 No functional change
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