Dev Builds » 20250227-1931

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 06:46:02 583084 4000 1624 478 1898 +102.41 ± 4.69 1 53 764 1163 19 +221.9 ± 12.24
ncm-dbt-02 06:44:43 586456 4000 1637 489 1874 +102.6 ± 4.84 0 78 714 1190 18 +222.41 ± 12.74
ncm-dbt-03 06:46:02 588135 4006 1564 509 1933 +93.71 ± 4.8 0 82 797 1111 13 +200.35 ± 12.02
ncm-dbt-04 06:45:47 570259 4000 1558 490 1952 +95.07 ± 4.89 2 88 763 1134 13 +204.31 ± 12.31
ncm-dbt-05 06:46:47 585817 3994 1602 455 1937 +102.66 ± 4.85 0 78 713 1187 19 +222.33 ± 12.75
20000 7985 2421 9594 +99.27 ± 2.15 3 379 3751 5785 82 +214.1 ± 5.55

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
402249 ncm-dbt-03 587664 6 3 0 3 +190.46 ± 18.51 0 0 0 3 0 +1199.83 ± 276.48
402248 ncm-dbt-01 583321 500 199 55 246 +102.97 ± 12.53 0 4 99 146 1 +226.0 ± 33.89
402247 ncm-dbt-05 584790 494 180 56 258 +89.11 ± 14.25 0 14 97 134 2 +188.05 ± 34.74
402246 ncm-dbt-02 590524 500 212 65 223 +105.25 ± 13.56 0 9 87 152 2 +230.16 ± 36.73
402245 ncm-dbt-04 571190 500 205 59 236 +104.49 ± 12.71 0 5 95 149 1 +230.16 ± 34.79
402244 ncm-dbt-03 588600 500 195 64 241 +93.2 ± 13.28 0 9 102 138 1 +200.24 ± 33.67
402243 ncm-dbt-01 584664 500 199 68 233 +93.2 ± 12.95 0 5 112 130 3 +196.45 ± 31.58
402242 ncm-dbt-05 582611 500 201 45 254 +112.14 ± 13.56 0 11 72 167 0 +254.16 ± 40.45
402241 ncm-dbt-04 566178 500 198 55 247 +102.22 ± 14.93 1 12 85 147 5 +217.85 ± 37.2
402240 ncm-dbt-02 585169 500 211 53 236 +113.68 ± 13.72 0 8 80 158 4 +249.64 ± 38.38
402239 ncm-dbt-03 585759 500 196 62 242 +95.44 ± 13.15 0 9 98 143 0 +207.95 ± 34.43
402238 ncm-dbt-01 582402 500 205 59 236 +104.49 ± 14.03 1 8 88 150 3 +228.08 ± 36.51
402237 ncm-dbt-05 587452 500 208 63 229 +103.73 ± 14.03 0 9 92 144 5 +219.87 ± 35.65
402236 ncm-dbt-04 571391 500 199 56 245 +102.22 ± 13.37 0 8 93 147 2 +221.9 ± 35.4
402235 ncm-dbt-02 585000 500 203 54 243 +106.77 ± 13.39 0 7 90 150 3 +232.26 ± 35.99
402234 ncm-dbt-03 587707 500 199 69 232 +92.45 ± 13.27 0 8 106 134 2 +196.45 ± 32.87
402233 ncm-dbt-05 585632 500 206 60 234 +104.49 ± 13.71 0 9 89 149 3 +226.0 ± 36.29
402232 ncm-dbt-01 581652 500 210 51 239 +114.45 ± 12.67 0 5 82 162 1 +258.75 ± 37.76
402231 ncm-dbt-04 572034 500 194 68 238 +89.48 ± 13.84 0 13 99 137 1 +190.85 ± 34.36
402230 ncm-dbt-02 584748 500 199 56 245 +102.22 ± 13.86 0 9 93 144 4 +217.85 ± 35.44
402229 ncm-dbt-03 586858 500 195 66 239 +91.71 ± 14.04 0 14 94 141 1 +196.45 ± 35.33
402228 ncm-dbt-05 588430 500 204 49 247 +111.37 ± 13.05 0 5 88 154 3 +245.2 ± 36.32
402227 ncm-dbt-01 581818 500 199 67 234 +93.95 ± 12.96 0 6 108 134 2 +200.24 ± 32.37
402226 ncm-dbt-02 586266 500 212 62 226 +107.54 ± 13.56 0 9 84 155 2 +236.51 ± 37.42
402225 ncm-dbt-04 569629 500 202 62 236 +99.95 ± 12.69 0 6 98 146 0 +219.87 ± 34.26
402224 ncm-dbt-03 591254 500 199 69 232 +92.45 ± 13.27 0 9 103 137 1 +198.34 ± 33.48
402223 ncm-dbt-01 582694 500 206 62 232 +102.97 ± 13.38 0 7 95 145 3 +221.9 ± 34.93
402222 ncm-dbt-04 570669 500 181 71 248 +77.71 ± 13.56 0 14 112 124 0 +164.07 ± 32.12
402221 ncm-dbt-02 585084 500 199 70 231 +91.71 ± 13.42 0 11 99 140 0 +198.34 ± 34.31
402220 ncm-dbt-05 583908 500 200 61 239 +99.2 ± 13.35 0 8 97 143 2 +213.85 ± 34.58
402219 ncm-dbt-03 587877 500 190 56 254 +95.44 ± 13.31 0 9 99 141 1 +206.01 ± 34.24
402218 ncm-dbt-02 587197 500 194 74 232 +85.04 ± 14.35 0 16 100 132 2 +178.11 ± 34.22
402217 ncm-dbt-01 582193 500 209 62 229 +105.25 ± 12.88 0 6 92 151 1 +232.26 ± 35.5
402216 ncm-dbt-04 569430 500 190 57 253 +94.69 ± 14.24 0 14 91 143 2 +202.15 ± 35.92
402215 ncm-dbt-03 588047 500 190 60 250 +92.45 ± 13.9 0 13 95 141 1 +198.34 ± 35.12
402214 ncm-dbt-05 587579 500 200 50 250 +107.54 ± 13.4 0 7 89 151 3 +234.38 ± 36.22
402213 ncm-dbt-02 587664 500 207 55 238 +109.07 ± 13.4 0 9 81 159 1 +243.0 ± 38.14
402212 ncm-dbt-01 585928 500 197 54 249 +102.22 ± 14.48 0 12 88 145 5 +215.85 ± 36.55
402211 ncm-dbt-03 589454 500 197 63 240 +95.44 ± 14.4 0 11 100 133 6 +196.45 ± 34.12
402210 ncm-dbt-05 586139 500 203 71 226 +93.95 ± 14.23 0 15 89 145 1 +202.15 ± 36.32
402209 ncm-dbt-04 571551 500 189 62 249 +90.22 ± 14.89 1 16 90 141 2 +192.71 ± 36.1

Commit

Commit ID 09faa626210e8f72cacc35887823c4929c36a86b
Author Shawn Xu
Date 2025-02-27 19:31:04 UTC
Simplify NMP Conditions Passed Non-regression STC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 142400 W: 36883 L: 36779 D: 68738 Ptnml(0-2): 467, 16804, 36571, 16874, 484 https://tests.stockfishchess.org/tests/view/67bd1898e4a8d7152b974ef1 Passed Non-regression LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 251868 W: 63905 L: 63920 D: 124043 Ptnml(0-2): 133, 27480, 70708, 27495, 118 https://tests.stockfishchess.org/tests/view/67bd1898e4a8d7152b974ef1 closes https://github.com/official-stockfish/Stockfish/pull/5906 Bench: 2188400
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