Dev Builds » 20251117-1236

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 06:45:21 582206 4000 1682 411 1907 +114.36 ± 4.62 0 41 672 1262 25 +253.59 ± 13.08
ncm-dbt-02 06:44:50 586567 4000 1709 428 1863 +115.32 ± 4.71 1 45 656 1268 30 +255.3 ± 13.27
ncm-dbt-03 06:45:24 586459 4014 1674 452 1888 +109.23 ± 4.69 2 46 710 1226 23 +239.96 ± 12.72
ncm-dbt-04 06:46:15 566270 4006 1701 422 1883 +114.94 ± 4.61 0 44 657 1281 21 +256.48 ± 13.25
ncm-dbt-05 06:46:45 583333 3980 1684 441 1855 +112.26 ± 4.69 0 46 682 1235 27 +246.89 ± 12.99
20000 8450 2154 9396 +113.22 ± 2.09 3 222 3377 6272 126 +250.37 ± 5.84

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
441477 ncm-dbt-04 568315 6 3 0 3 +190.46 ± 18.51 0 0 0 3 0 +1199.83 ± 276.48
441476 ncm-dbt-03 586350 14 6 0 8 +159.07 ± 56.3 0 0 1 6 0 +445.23 ± 480.27
441475 ncm-dbt-05 578836 480 199 52 229 +109.93 ± 13.56 0 4 90 141 5 +236.33 ± 35.72
441474 ncm-dbt-01 581111 500 203 56 241 +105.25 ± 13.05 0 6 93 149 2 +230.16 ± 35.29
441473 ncm-dbt-04 566572 500 221 54 225 +120.67 ± 12.41 0 4 76 169 1 +277.93 ± 39.29
441472 ncm-dbt-02 587028 500 206 53 241 +109.83 ± 12.34 0 4 89 157 0 +247.41 ± 36.02
441471 ncm-dbt-03 587792 500 210 50 240 +115.22 ± 13.03 0 6 80 162 2 +258.75 ± 38.32
441470 ncm-dbt-05 584285 500 218 51 231 +120.67 ± 13.32 0 6 75 165 4 +270.57 ± 39.67
441469 ncm-dbt-01 582694 500 210 50 240 +115.22 ± 13.2 0 6 81 160 3 +256.44 ± 38.07
441468 ncm-dbt-04 562924 500 209 59 232 +107.54 ± 13.4 0 5 95 145 5 +230.16 ± 34.79
441467 ncm-dbt-03 586646 500 201 53 246 +106.01 ± 12.35 0 4 94 152 0 +236.51 ± 34.92
441466 ncm-dbt-02 586816 500 210 48 242 +116.77 ± 13.36 0 4 86 154 6 +254.16 ± 36.71
441465 ncm-dbt-05 580489 500 206 55 239 +108.3 ± 13.73 0 8 87 151 4 +234.38 ± 36.71
441464 ncm-dbt-01 580116 500 215 50 235 +119.11 ± 12.99 0 6 75 167 2 +270.57 ± 39.67
441463 ncm-dbt-04 568077 500 204 43 253 +116.0 ± 13.2 0 6 80 161 3 +258.75 ± 38.32
441462 ncm-dbt-02 585464 500 216 54 230 +116.77 ± 14.37 0 8 80 154 8 +249.64 ± 38.38
441461 ncm-dbt-03 586774 500 206 51 243 +111.37 ± 12.33 0 3 90 156 1 +249.64 ± 35.69
441460 ncm-dbt-05 582485 500 216 56 228 +115.22 ± 13.2 0 6 81 160 3 +256.44 ± 38.07
441459 ncm-dbt-01 583531 500 203 44 253 +114.45 ± 13.21 0 4 88 153 5 +249.64 ± 36.24
441458 ncm-dbt-03 585464 500 215 72 213 +102.22 ± 13.86 0 8 96 141 5 +215.85 ± 34.78
441457 ncm-dbt-04 564291 500 217 48 235 +122.24 ± 13.12 0 3 81 160 6 +270.57 ± 37.86
441456 ncm-dbt-02 582819 500 217 50 233 +120.67 ± 13.15 0 5 77 164 4 +270.57 ± 39.07
441455 ncm-dbt-05 581985 500 209 59 232 +107.54 ± 13.23 0 5 94 147 4 +232.26 ± 35.0
441454 ncm-dbt-01 582485 500 214 58 228 +112.14 ± 13.04 0 6 84 158 2 +249.64 ± 37.33
441453 ncm-dbt-03 585379 500 218 58 224 +115.22 ± 14.05 0 7 83 153 7 +247.41 ± 37.61
441452 ncm-dbt-04 567284 500 216 60 224 +112.14 ± 13.39 0 7 83 157 3 +247.41 ± 37.61
441451 ncm-dbt-02 588047 500 222 52 226 +123.02 ± 13.29 0 8 66 174 2 +282.94 ± 42.37
441450 ncm-dbt-05 582527 500 210 70 220 +99.95 ± 13.52 0 8 97 142 3 +213.85 ± 34.58
441449 ncm-dbt-01 580987 500 211 46 243 +119.11 ± 12.8 0 3 83 160 4 +265.78 ± 37.35
441448 ncm-dbt-03 585801 500 205 52 243 +109.83 ± 14.37 0 11 80 154 5 +236.51 ± 38.38
441447 ncm-dbt-04 566493 500 212 63 225 +106.77 ± 13.39 0 9 84 156 1 +236.51 ± 37.42
441446 ncm-dbt-02 586181 500 218 49 233 +122.24 ± 12.94 0 5 74 168 3 +277.93 ± 39.92
441445 ncm-dbt-01 582778 500 211 50 239 +116.0 ± 13.2 0 8 74 167 1 +263.42 ± 39.97
441444 ncm-dbt-03 586646 500 217 59 224 +113.68 ± 12.68 1 1 89 157 2 +256.44 ± 35.8
441443 ncm-dbt-05 580821 500 206 47 247 +114.45 ± 12.85 0 5 83 160 2 +256.44 ± 37.51
441442 ncm-dbt-04 565666 500 215 45 240 +123.02 ± 12.37 0 3 76 169 2 +282.94 ± 39.21
441441 ncm-dbt-02 586816 500 217 56 227 +116.0 ± 13.88 1 5 81 158 5 +256.44 ± 38.07
441440 ncm-dbt-03 587282 500 196 57 247 +99.2 ± 13.35 1 6 97 145 1 +217.85 ± 34.53
441439 ncm-dbt-01 583950 500 215 57 228 +113.68 ± 13.04 0 2 94 148 6 +245.2 ± 34.7
441438 ncm-dbt-02 589368 500 203 66 231 +97.69 ± 13.01 0 6 103 139 2 +209.91 ± 33.29
441437 ncm-dbt-04 566809 500 204 50 246 +110.6 ± 12.88 0 7 82 161 0 +249.64 ± 37.86
441436 ncm-dbt-05 595237 500 220 51 229 +122.24 ± 12.57 0 4 75 169 2 +280.42 ± 39.57

Commit

Commit ID 4b8fffe3b3cde2f351aff0afb0a0a5c33f376b40
Author Joost VandeVondele
Date 2025-11-17 12:36:11 UTC
Silence warning for systems without shared memory support Fixes https://github.com/official-stockfish/Stockfish/issues/6425 closes https://github.com/official-stockfish/Stockfish/pull/6426 No functional change
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