Dev Builds » 20251117-1234

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 06:42:46 582106 4000 1691 420 1889 +114.36 ± 4.69 0 48 660 1265 27 +253.02 ± 13.23
ncm-dbt-02 06:44:42 586209 4000 1707 429 1864 +115.03 ± 4.7 1 41 669 1257 32 +253.87 ± 13.12
ncm-dbt-03 06:43:26 586363 4000 1686 439 1875 +112.04 ± 4.59 1 34 706 1235 24 +247.41 ± 12.72
ncm-dbt-04 06:44:22 566581 4000 1640 396 1964 +111.75 ± 4.63 0 51 669 1265 15 +248.81 ± 13.14
ncm-dbt-05 06:45:24 581705 4000 1693 405 1902 +116.0 ± 4.71 0 43 661 1261 35 +255.59 ± 13.21
20000 8417 2089 9494 +113.83 ± 2.08 2 217 3365 6283 133 +251.72 ± 5.85

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
441519 ncm-dbt-05 580033 500 214 54 232 +115.22 ± 13.03 0 3 89 153 5 +251.89 ± 35.92
441518 ncm-dbt-02 587537 500 214 47 239 +120.67 ± 13.32 0 5 78 162 5 +268.17 ± 38.8
441517 ncm-dbt-04 565154 500 209 53 238 +112.14 ± 13.04 0 5 87 155 3 +247.41 ± 36.56
441516 ncm-dbt-01 583028 500 216 58 226 +113.68 ± 13.38 0 8 78 162 2 +254.16 ± 38.89
441515 ncm-dbt-03 587325 500 212 52 236 +115.23 ± 13.37 1 2 88 154 5 +254.16 ± 36.15
441514 ncm-dbt-02 586604 500 215 62 223 +109.83 ± 13.05 0 7 84 158 1 +245.2 ± 37.37
441513 ncm-dbt-05 578836 500 214 53 233 +116.0 ± 13.02 0 5 82 160 3 +258.75 ± 37.76
441512 ncm-dbt-04 566691 500 211 55 234 +112.14 ± 12.51 0 5 84 161 0 +254.16 ± 37.27
441511 ncm-dbt-01 580696 500 207 63 230 +102.97 ± 13.04 0 7 93 149 1 +226.0 ± 35.35
441510 ncm-dbt-03 584706 500 207 65 228 +101.46 ± 13.53 0 10 89 150 1 +221.9 ± 36.31
441509 ncm-dbt-01 581860 500 209 41 250 +121.45 ± 13.31 0 7 71 169 3 +275.45 ± 40.84
441508 ncm-dbt-05 581527 500 210 53 237 +112.91 ± 13.39 0 7 82 158 3 +249.64 ± 37.86
441507 ncm-dbt-02 586393 500 206 52 242 +110.6 ± 13.73 1 7 81 159 2 +247.41 ± 38.13
441506 ncm-dbt-04 565351 500 205 49 246 +112.14 ± 13.22 0 7 82 159 2 +249.64 ± 37.86
441505 ncm-dbt-03 586985 500 215 49 236 +119.89 ± 13.33 0 6 76 164 4 +268.17 ± 39.39
441504 ncm-dbt-01 582402 500 211 54 235 +112.91 ± 13.04 0 5 86 156 3 +249.64 ± 36.79
441503 ncm-dbt-02 585379 500 212 53 235 +114.45 ± 12.67 0 4 85 159 2 +256.44 ± 36.95
441502 ncm-dbt-04 566217 500 194 43 263 +108.3 ± 13.56 0 8 86 153 3 +236.51 ± 36.93
441501 ncm-dbt-05 578465 500 213 40 247 +125.38 ± 12.7 0 4 72 171 3 +288.06 ± 40.46
441500 ncm-dbt-03 586816 500 216 50 234 +119.89 ± 12.61 0 3 81 163 3 +270.57 ± 37.86
441499 ncm-dbt-01 581361 500 211 51 238 +115.22 ± 14.05 0 7 83 153 7 +247.41 ± 37.61
441498 ncm-dbt-02 584411 500 208 49 243 +114.45 ± 13.55 0 6 84 155 5 +249.64 ± 37.33
441497 ncm-dbt-04 568116 500 207 57 236 +107.54 ± 13.4 0 7 89 151 3 +234.38 ± 36.22
441496 ncm-dbt-05 582152 500 207 49 244 +113.68 ± 12.86 0 3 90 153 4 +249.64 ± 35.69
441495 ncm-dbt-03 582444 500 211 55 234 +112.14 ± 12.69 0 3 91 153 3 +247.41 ± 35.47
441494 ncm-dbt-01 583866 500 211 53 236 +113.68 ± 12.86 0 4 87 156 3 +251.89 ± 36.48
441493 ncm-dbt-04 567680 500 210 48 242 +116.77 ± 13.19 0 8 73 168 1 +265.78 ± 40.25
441492 ncm-dbt-02 585717 500 221 48 231 +125.38 ± 13.79 0 4 78 159 9 +273.0 ± 38.74
441491 ncm-dbt-05 577151 500 204 46 250 +113.68 ± 13.72 0 7 83 155 5 +247.41 ± 37.61
441490 ncm-dbt-03 586646 500 207 60 233 +105.25 ± 13.05 0 6 93 149 2 +230.16 ± 35.29
441489 ncm-dbt-01 581985 500 213 48 239 +119.11 ± 13.17 0 5 79 162 4 +265.78 ± 38.54
441488 ncm-dbt-03 585674 500 210 60 230 +107.54 ± 12.17 0 1 100 147 2 +236.51 ± 33.33
441487 ncm-dbt-04 564096 500 203 51 246 +109.07 ± 13.05 0 7 85 157 1 +243.0 ± 37.13
441486 ncm-dbt-02 586223 500 221 62 217 +114.45 ± 13.38 0 5 86 154 5 +249.64 ± 36.79
441485 ncm-dbt-05 580240 500 222 56 222 +119.89 ± 13.85 0 5 82 155 8 +258.75 ± 37.76
441484 ncm-dbt-01 581652 500 213 52 235 +116.0 ± 13.2 0 5 83 158 4 +256.44 ± 37.51
441483 ncm-dbt-02 587409 500 210 56 234 +110.6 ± 12.7 0 3 93 151 3 +243.0 ± 35.03
441482 ncm-dbt-03 590310 500 208 48 244 +115.22 ± 12.85 0 3 88 155 4 +254.16 ± 36.15
441481 ncm-dbt-04 569350 500 201 40 259 +116.0 ± 12.66 0 4 83 161 2 +261.07 ± 37.44
441480 ncm-dbt-05 595237 500 209 54 237 +111.37 ± 13.89 0 9 81 156 4 +243.0 ± 38.14

Commit

Commit ID 2084d94266f76f1ab5631f32708916a4d5cca246
Author Carlos Esparza
Date 2025-11-17 12:34:45 UTC
inline make_index() and avoid templating perspective combination of two patches. pass perspective as argument passed STC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 52832 W: 13725 L: 13528 D: 25579 Ptnml(0-2): 154, 5756, 14412, 5927, 167 https://tests.stockfishchess.org/tests/view/69162e307ca8781852331c6a inline make_index passed STC: LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 68768 W: 17786 L: 17607 D: 33375 Ptnml(0-2): 187, 7591, 18694, 7680, 232 https://tests.stockfishchess.org/tests/view/6916859e7ca8781852331d36 closes https://github.com/official-stockfish/Stockfish/pull/6429 No functional change
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