Dev Builds » 20251117-1237

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 06:44:43 582044 4000 1716 396 1888 +119.11 ± 4.65 0 45 617 1311 27 +267.27 ± 13.7
ncm-dbt-02 06:45:54 586330 4012 1692 416 1904 +114.47 ± 4.7 0 51 655 1273 27 +253.38 ± 13.29
ncm-dbt-03 06:47:04 586016 4016 1713 424 1879 +115.6 ± 4.61 1 40 659 1285 23 +258.16 ± 13.22
ncm-dbt-04 06:45:36 567855 3992 1693 383 1916 +118.39 ± 4.58 0 38 634 1300 24 +265.95 ± 13.49
ncm-dbt-05 06:44:43 583243 3980 1699 408 1873 +116.92 ± 4.58 1 33 654 1278 24 +261.77 ± 13.25
20000 8513 2027 9460 +116.89 ± 2.07 2 207 3219 6447 125 +261.25 ± 5.98

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
441434 ncm-dbt-02 586012 12 4 0 8 +120.31 ± 75.55 0 0 2 4 0 +279.41 ± 548.26
441433 ncm-dbt-03 587028 16 8 0 8 +190.7 ± 6.94 0 0 0 8 0 +1199.83 ± 190.04
441432 ncm-dbt-05 578671 480 200 47 233 +114.74 ± 14.26 1 6 76 153 4 +254.73 ± 39.39
441431 ncm-dbt-04 568792 492 208 52 232 +114.09 ± 13.87 0 6 84 150 6 +246.17 ± 37.31
441430 ncm-dbt-01 580282 500 214 47 239 +120.67 ± 13.15 0 7 71 170 2 +275.45 ± 40.84
441429 ncm-dbt-03 584748 500 223 47 230 +127.76 ± 11.86 0 0 77 170 3 +295.94 ± 38.53
441428 ncm-dbt-02 587282 500 210 54 236 +112.14 ± 13.89 0 9 80 157 4 +245.2 ± 38.39
441427 ncm-dbt-05 584117 500 205 35 260 +123.02 ± 12.74 0 3 78 165 4 +277.93 ± 38.66
441426 ncm-dbt-04 568275 500 212 50 238 +116.77 ± 12.65 0 5 79 165 1 +265.78 ± 38.54
441425 ncm-dbt-01 582485 500 214 52 234 +116.77 ± 13.01 0 6 78 164 2 +263.42 ± 38.85
441424 ncm-dbt-03 585885 500 213 37 250 +127.76 ± 12.84 0 6 64 178 2 +298.62 ± 43.1
441423 ncm-dbt-02 586901 500 207 42 251 +119.11 ± 13.86 0 6 80 157 7 +258.75 ± 38.32
441422 ncm-dbt-05 583614 500 213 54 233 +114.45 ± 12.67 0 3 88 156 3 +254.16 ± 36.15
441421 ncm-dbt-04 568752 500 210 45 245 +119.11 ± 12.05 0 3 79 168 0 +275.45 ± 38.39
441420 ncm-dbt-01 583070 500 222 63 215 +114.45 ± 13.38 0 4 89 151 6 +247.41 ± 36.02
441419 ncm-dbt-02 583740 500 209 51 240 +113.68 ± 13.89 0 8 81 156 5 +247.41 ± 38.13
441418 ncm-dbt-03 588472 500 211 61 228 +107.54 ± 12.88 0 5 92 151 2 +236.51 ± 35.43
441417 ncm-dbt-05 576782 500 211 47 242 +118.33 ± 13.0 0 4 82 160 4 +263.42 ± 37.69
441416 ncm-dbt-04 568713 500 218 45 237 +125.38 ± 12.89 0 6 67 175 2 +290.66 ± 42.08
441415 ncm-dbt-01 583656 500 217 49 234 +121.45 ± 13.49 0 4 81 158 7 +265.78 ± 37.95
441414 ncm-dbt-02 584495 500 204 50 246 +110.6 ± 13.89 0 8 85 152 5 +238.66 ± 37.17
441413 ncm-dbt-03 584790 500 219 49 232 +123.02 ± 13.47 0 5 76 163 6 +273.0 ± 39.35
441412 ncm-dbt-05 582736 500 219 55 226 +118.33 ± 13.17 0 5 80 161 4 +263.42 ± 38.27
441411 ncm-dbt-04 565587 500 212 45 243 +120.67 ± 13.67 0 7 74 164 5 +268.17 ± 39.97
441410 ncm-dbt-01 581153 500 214 52 234 +116.77 ± 13.54 0 10 69 170 1 +265.78 ± 41.36
441409 ncm-dbt-02 585506 500 219 53 228 +119.89 ± 12.61 0 4 78 166 2 +273.0 ± 38.74
441408 ncm-dbt-03 585717 500 207 68 225 +99.2 ± 13.83 1 7 97 142 3 +213.85 ± 34.58
441407 ncm-dbt-05 580240 500 216 63 221 +109.83 ± 12.52 0 4 90 155 1 +245.2 ± 35.79
441406 ncm-dbt-01 581236 500 207 49 244 +113.68 ± 13.38 0 6 84 156 4 +249.64 ± 37.33
441405 ncm-dbt-04 567522 500 205 47 248 +113.68 ± 12.68 0 3 89 155 3 +251.89 ± 35.92
441404 ncm-dbt-03 587622 500 217 57 226 +115.22 ± 12.48 0 3 86 159 2 +258.75 ± 36.62
441403 ncm-dbt-02 586985 500 209 61 230 +106.01 ± 12.71 0 5 93 151 1 +234.38 ± 35.22
441402 ncm-dbt-05 580075 500 218 50 232 +121.45 ± 12.01 0 2 79 168 1 +280.42 ± 38.28
441401 ncm-dbt-04 566572 500 213 52 235 +116.0 ± 13.37 0 5 84 156 5 +254.16 ± 37.27
441400 ncm-dbt-01 581402 500 213 43 244 +123.02 ± 12.56 0 4 74 170 2 +282.94 ± 39.86
441399 ncm-dbt-03 582861 500 208 54 238 +110.6 ± 13.22 0 7 84 157 2 +245.2 ± 37.37
441398 ncm-dbt-02 588217 500 212 48 240 +118.33 ± 12.63 0 4 80 164 2 +268.17 ± 38.21
441397 ncm-dbt-05 599716 500 217 57 226 +115.22 ± 13.2 0 6 81 160 3 +256.44 ± 38.07
441396 ncm-dbt-04 568633 500 215 47 238 +121.45 ± 12.4 0 3 78 167 2 +277.93 ± 38.66
441395 ncm-dbt-01 583070 500 215 41 244 +126.17 ± 12.68 0 4 71 172 3 +290.66 ± 40.76
441394 ncm-dbt-02 587834 500 218 57 225 +116.0 ± 13.02 0 7 76 166 1 +263.42 ± 39.41
441393 ncm-dbt-03 587028 500 207 51 242 +112.14 ± 13.39 0 7 83 157 3 +247.41 ± 37.61

Commit

Commit ID 563b4a9c4d649a78c3c4ee45cc779fb5caaed385
Author Andreas Matthies
Date 2025-11-17 12:37:55 UTC
Cleanup benchmark Avoid unnecessary consecutive ucinewgame commands in benchmark setup. Remove measuring time and nodes in speedtest warmup. closes https://github.com/official-stockfish/Stockfish/pull/6427 No functional change
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