Dev Builds » 20250519-0531

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 06:46:27 582148 4000 1647 460 1893 +106.3 ± 4.76 1 60 711 1207 21 +232.0 ± 12.74
ncm-dbt-02 06:44:39 585402 4000 1638 436 1926 +107.73 ± 4.67 0 60 689 1240 11 +238.39 ± 12.95
ncm-dbt-03 06:46:37 585329 4000 1615 448 1937 +104.4 ± 4.8 0 69 715 1196 20 +226.78 ± 12.72
ncm-dbt-04 06:47:20 568868 4000 1609 443 1948 +104.3 ± 4.65 1 53 738 1195 13 +228.6 ± 12.47
ncm-dbt-05 06:45:24 582620 4000 1626 487 1887 +101.74 ± 4.72 3 60 743 1183 11 +222.67 ± 12.45
20000 8135 2274 9591 +104.89 ± 2.11 5 302 3596 6021 76 +229.64 ± 5.66

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
414324 ncm-dbt-04 568713 500 204 50 246 +110.6 ± 12.52 0 4 89 156 1 +247.41 ± 36.02
414323 ncm-dbt-01 583363 500 208 59 233 +106.77 ± 13.06 0 8 85 157 0 +238.66 ± 37.17
414322 ncm-dbt-03 585337 500 204 62 234 +101.46 ± 14.48 0 13 86 147 4 +215.85 ± 36.98
414321 ncm-dbt-05 583489 500 194 70 236 +88.0 ± 13.97 2 8 105 134 1 +190.85 ± 33.16
414320 ncm-dbt-02 585295 500 200 60 240 +99.95 ± 13.03 0 8 94 148 0 +219.87 ± 35.19
414319 ncm-dbt-04 568792 500 203 50 247 +109.83 ± 13.73 0 7 88 150 5 +236.51 ± 36.44
414318 ncm-dbt-03 587070 500 210 64 226 +104.49 ± 13.05 0 5 97 145 3 +226.0 ± 34.38
414317 ncm-dbt-01 583531 500 199 60 241 +99.2 ± 13.35 0 9 94 146 1 +215.85 ± 35.23
414316 ncm-dbt-02 586097 500 209 49 242 +115.22 ± 13.2 0 4 87 154 5 +251.89 ± 36.48
414315 ncm-dbt-05 582903 500 211 53 236 +113.68 ± 12.5 0 4 85 160 1 +256.44 ± 36.95
414314 ncm-dbt-04 570029 500 191 52 257 +99.2 ± 12.68 0 6 99 145 0 +217.85 ± 34.06
414313 ncm-dbt-03 585295 500 191 53 256 +98.44 ± 13.67 0 12 88 150 0 +215.85 ± 36.55
414312 ncm-dbt-02 586266 500 198 42 260 +112.14 ± 13.39 0 10 74 166 0 +254.16 ± 39.94
414311 ncm-dbt-01 578054 500 212 55 233 +112.91 ± 13.04 0 5 86 156 3 +249.64 ± 36.79
414310 ncm-dbt-05 580365 500 209 62 229 +105.25 ± 13.88 0 9 89 148 4 +226.0 ± 36.29
414309 ncm-dbt-02 583866 500 208 52 240 +112.14 ± 12.87 0 5 86 157 2 +249.64 ± 36.79
414308 ncm-dbt-03 583866 500 193 50 257 +102.22 ± 12.7 0 5 98 146 1 +223.94 ± 34.18
414307 ncm-dbt-04 569989 500 196 55 249 +100.7 ± 13.69 0 11 88 150 1 +219.87 ± 36.54
414306 ncm-dbt-01 582068 500 196 60 244 +96.94 ± 14.27 1 13 85 151 0 +213.85 ± 37.18
414305 ncm-dbt-05 583740 500 201 61 238 +99.95 ± 13.68 0 10 92 146 2 +215.85 ± 35.68
414304 ncm-dbt-02 586181 500 209 49 242 +115.23 ± 12.48 0 5 80 165 0 +263.42 ± 38.27
414303 ncm-dbt-03 582861 500 210 61 229 +106.77 ± 14.67 0 11 86 146 7 +223.94 ± 36.98
414302 ncm-dbt-01 580945 500 206 68 226 +98.44 ± 13.34 0 8 98 142 2 +211.87 ± 34.38
414301 ncm-dbt-04 569589 500 204 54 242 +107.54 ± 12.53 0 4 93 152 1 +238.66 ± 35.13
414300 ncm-dbt-05 584453 500 208 62 230 +104.49 ± 13.05 0 7 91 151 1 +230.16 ± 35.78
414299 ncm-dbt-02 583489 500 206 60 234 +104.49 ± 13.22 0 9 86 155 0 +232.26 ± 36.96
414298 ncm-dbt-03 586308 500 196 60 244 +96.94 ± 14.27 0 12 94 140 4 +204.07 ± 35.31
414297 ncm-dbt-01 581485 500 210 46 244 +118.33 ± 13.17 0 5 80 161 4 +263.42 ± 38.27
414296 ncm-dbt-04 568355 500 209 68 223 +100.71 ± 13.2 1 3 103 140 3 +217.85 ± 33.11
414295 ncm-dbt-05 579537 500 200 62 238 +98.44 ± 12.67 0 6 100 144 0 +215.85 ± 33.86
414294 ncm-dbt-02 585885 500 202 64 234 +98.44 ± 14.29 0 13 89 145 3 +209.91 ± 36.34
414293 ncm-dbt-01 581985 500 205 52 243 +109.83 ± 13.4 0 5 92 148 5 +236.51 ± 35.43
414292 ncm-dbt-03 586308 500 211 47 242 +118.33 ± 12.63 0 6 74 170 0 +273.0 ± 39.95
414291 ncm-dbt-05 583405 500 204 56 240 +106.01 ± 13.88 1 8 85 154 2 +234.38 ± 37.19
414290 ncm-dbt-04 568832 500 198 63 239 +96.19 ± 13.48 0 11 93 146 0 +209.91 ± 35.49
414289 ncm-dbt-02 586139 500 206 60 234 +104.49 ± 12.88 0 6 93 150 1 +230.16 ± 35.29
414288 ncm-dbt-01 585759 500 211 60 229 +108.3 ± 13.89 0 7 91 146 6 +230.16 ± 35.78
414287 ncm-dbt-05 583070 500 199 61 240 +98.44 ± 13.01 0 8 96 146 0 +215.85 ± 34.78
414286 ncm-dbt-03 585590 500 200 51 249 +106.77 ± 12.71 0 5 92 152 1 +236.51 ± 35.43
414285 ncm-dbt-04 566651 500 204 51 245 +109.83 ± 13.23 0 7 85 156 2 +243.0 ± 37.13

Commit

Commit ID 4f76768fcf1aa8a8c576086210875e84cda40705
Author FauziAkram
Date 2025-05-19 05:31:26 UTC
Remove a moveCount condition Passed STC: LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 70816 W: 18315 L: 18134 D: 34367 Ptnml(0-2): 210, 8213, 18360, 8436, 189 https://tests.stockfishchess.org/tests/view/68248197a527315e07cccb2d Passed LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 121770 W: 31248 L: 31130 D: 59392 Ptnml(0-2): 61, 13338, 33995, 13404, 87 https://tests.stockfishchess.org/tests/view/68272ff46ec7634154f998ad closes https://github.com/official-stockfish/Stockfish/pull/6067 bench: 2319161
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