Dev Builds » 20251221-1422

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 06:45:10 581429 4022 1756 409 1857 +121.03 ± 4.58 0 31 637 1308 35 +270.82 ± 13.43
ncm-dbt-02 06:44:24 586258 4000 1751 396 1853 +122.53 ± 4.66 0 42 594 1331 33 +276.07 ± 13.97
ncm-dbt-03 06:43:34 585825 4000 1705 382 1913 +119.4 ± 4.63 2 47 593 1342 16 +272.09 ± 13.99
ncm-dbt-04 06:45:14 565218 4002 1709 380 1913 +119.92 ± 4.57 0 36 626 1313 26 +270.07 ± 13.57
ncm-dbt-05 06:44:56 581363 3976 1722 404 1850 +119.69 ± 4.46 0 28 632 1310 18 +271.74 ± 13.48
20000 8643 1971 9386 +120.52 ± 2.05 2 184 3082 6604 128 +272.15 ± 6.12

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
447301 ncm-dbt-04 562107 2 0 0 2 0.0 ± 34.02 0 0 1 0 0 0.0 ± 30.47
447300 ncm-dbt-01 583363 22 11 7 4 +63.85 ± 51.57 0 0 7 4 0 +132.35 ± 120.26
447299 ncm-dbt-05 580489 476 204 38 234 +126.47 ± 11.78 0 1 70 167 0 +299.62 ± 40.72
447298 ncm-dbt-02 587197 500 225 44 231 +131.74 ± 11.52 0 0 71 177 2 +312.47 ± 40.3
447297 ncm-dbt-04 564057 500 224 47 229 +128.55 ± 12.63 0 3 71 172 4 +295.94 ± 40.69
447296 ncm-dbt-03 586562 500 213 53 234 +115.22 ± 13.2 0 7 78 163 2 +258.75 ± 38.88
447295 ncm-dbt-01 580572 500 226 55 219 +123.81 ± 13.1 0 5 73 168 4 +280.42 ± 40.21
447294 ncm-dbt-05 579413 500 222 56 222 +119.89 ± 12.98 0 2 86 156 6 +263.42 ± 36.51
447293 ncm-dbt-02 583656 500 221 59 220 +116.77 ± 13.71 0 8 76 162 4 +258.75 ± 39.42
447292 ncm-dbt-04 565981 500 218 37 245 +131.74 ± 13.12 0 5 64 176 5 +304.07 ± 43.1
447291 ncm-dbt-03 582987 500 215 48 237 +120.67 ± 12.6 0 4 77 167 2 +275.45 ± 39.01
447290 ncm-dbt-01 582068 500 207 46 247 +116.0 ± 12.47 0 2 88 157 3 +258.75 ± 36.04
447289 ncm-dbt-05 583154 500 211 65 224 +104.49 ± 12.88 0 5 96 147 2 +228.08 ± 34.59
447288 ncm-dbt-02 585042 500 229 56 215 +125.38 ± 14.13 0 6 74 161 9 +273.0 ± 39.95
447287 ncm-dbt-04 566217 500 207 53 240 +110.6 ± 12.52 0 4 89 156 1 +247.41 ± 36.02
447286 ncm-dbt-03 584916 500 206 51 243 +111.37 ± 13.39 0 9 78 162 1 +249.64 ± 38.9
447285 ncm-dbt-01 582402 500 225 48 227 +128.55 ± 12.82 0 3 72 170 5 +293.29 ± 40.39
447284 ncm-dbt-05 581860 500 213 47 240 +119.89 ± 12.61 0 5 75 169 1 +275.45 ± 39.63
447283 ncm-dbt-02 586477 500 218 42 240 +127.76 ± 13.21 0 4 72 168 6 +288.06 ± 40.46
447282 ncm-dbt-04 565508 500 212 49 239 +117.55 ± 13.53 0 6 80 159 5 +258.75 ± 38.32
447281 ncm-dbt-03 586266 500 215 43 242 +124.6 ± 11.74 0 1 77 171 1 +290.66 ± 38.7
447280 ncm-dbt-01 583363 500 218 48 234 +123.02 ± 12.74 0 3 78 165 4 +277.93 ± 38.66
447279 ncm-dbt-05 585169 500 215 58 227 +112.91 ± 12.5 0 4 86 159 1 +254.16 ± 36.71
447278 ncm-dbt-02 588600 500 215 57 228 +113.68 ± 12.86 0 5 84 159 2 +254.16 ± 37.27
447277 ncm-dbt-04 566138 500 209 48 243 +116.0 ± 13.02 0 5 82 160 3 +258.75 ± 37.76
447276 ncm-dbt-03 585464 500 211 56 233 +111.37 ± 13.89 0 11 75 162 2 +247.41 ± 39.65
447275 ncm-dbt-01 581943 500 217 51 232 +119.89 ± 12.79 0 4 79 164 3 +270.57 ± 38.47
447274 ncm-dbt-02 586181 500 208 41 251 +120.67 ± 13.15 0 6 74 167 3 +273.0 ± 39.95
447273 ncm-dbt-05 578218 500 214 55 231 +114.45 ± 12.85 0 4 86 157 3 +254.16 ± 36.71
447272 ncm-dbt-04 564762 500 215 51 234 +118.33 ± 12.26 0 2 84 162 2 +268.17 ± 36.99
447271 ncm-dbt-03 585295 500 210 47 243 +117.55 ± 13.0 1 5 74 170 0 +273.0 ± 39.95
447270 ncm-dbt-01 580655 500 214 52 234 +116.77 ± 13.19 0 5 82 159 4 +258.75 ± 37.76
447269 ncm-dbt-05 579620 500 221 47 232 +126.17 ± 12.68 0 5 68 175 2 +293.29 ± 41.75
447268 ncm-dbt-02 586308 500 221 52 227 +122.24 ± 13.3 0 6 73 167 4 +275.45 ± 40.24
447267 ncm-dbt-04 565390 500 212 48 240 +118.33 ± 13.0 0 5 79 163 3 +265.78 ± 38.54
447266 ncm-dbt-03 586943 500 213 45 242 +121.46 ± 13.31 1 5 71 171 2 +280.42 ± 40.83
447265 ncm-dbt-01 578547 500 214 48 238 +119.89 ± 13.16 0 6 75 166 3 +270.57 ± 39.67
447264 ncm-dbt-05 582987 500 222 38 240 +134.15 ± 12.06 0 2 65 180 3 +318.25 ± 42.59
447263 ncm-dbt-02 586604 500 214 45 241 +122.24 ± 13.3 0 7 70 170 3 +277.93 ± 41.14
447262 ncm-dbt-03 588174 500 222 39 239 +133.34 ± 13.26 0 5 63 176 6 +306.84 ± 43.45
447261 ncm-dbt-01 579951 500 224 54 222 +123.02 ± 13.65 0 3 83 155 9 +265.78 ± 37.35
447260 ncm-dbt-04 566809 500 212 47 241 +119.11 ± 13.17 0 6 76 165 3 +268.17 ± 39.39

Commit

Commit ID 5edfabd07029dc26228f4b22931b67be5402860a
Author FauziAkram
Date 2025-12-21 14:22:06 UTC
Fix Typo closes https://github.com/official-stockfish/Stockfish/pull/6436 No functional change
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