Dev Builds » 20250321-1021

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 06:44:25 583086 4016 1683 424 1909 +112.71 ± 4.61 1 38 695 1249 25 +249.11 ± 12.84
ncm-dbt-02 06:43:07 587053 4014 1637 474 1903 +103.63 ± 4.8 0 74 714 1201 18 +225.23 ± 12.73
ncm-dbt-03 06:44:16 586444 3990 1647 481 1862 +104.58 ± 4.89 3 74 690 1210 18 +228.57 ± 12.97
ncm-dbt-04 06:44:33 569889 3996 1598 474 1924 +100.43 ± 4.85 2 68 756 1148 24 +215.62 ± 12.35
ncm-dbt-05 06:44:31 584137 3984 1621 498 1865 +100.66 ± 4.82 1 69 748 1154 20 +216.96 ± 12.42
20000 8186 2351 9463 +104.4 ± 2.15 7 323 3603 5962 105 +226.88 ± 5.66

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
405259 ncm-dbt-02 586689 14 6 2 6 +102.04 ± 70.73 0 0 3 4 0 +225.59 ± 263.0
405258 ncm-dbt-01 582318 16 6 1 9 +112.26 ± 65.75 0 0 3 5 0 +254.61 ± 287.37
405257 ncm-dbt-05 585042 484 193 62 229 +96.44 ± 13.25 0 6 101 133 2 +206.52 ± 33.6
405256 ncm-dbt-03 587622 490 203 70 217 +96.73 ± 15.52 1 19 72 152 1 +211.31 ± 39.89
405255 ncm-dbt-04 568554 496 196 60 240 +97.76 ± 13.73 0 9 97 139 3 +208.09 ± 34.62
405254 ncm-dbt-02 587707 500 210 53 237 +112.91 ± 13.22 0 7 81 160 2 +251.89 ± 38.11
405253 ncm-dbt-01 582110 500 204 49 247 +111.37 ± 13.05 0 5 88 154 3 +245.2 ± 36.32
405252 ncm-dbt-05 580530 500 208 68 224 +99.95 ± 15.05 1 13 86 145 5 +211.87 ± 36.97
405251 ncm-dbt-03 587197 500 211 58 231 +109.83 ± 13.73 2 5 82 160 1 +249.64 ± 37.86
405250 ncm-dbt-04 571150 500 209 61 230 +106.01 ± 13.72 0 11 81 157 1 +234.38 ± 38.14
405249 ncm-dbt-02 587834 500 208 62 230 +104.49 ± 14.19 0 10 89 146 5 +221.9 ± 36.31
405248 ncm-dbt-01 578836 500 207 65 228 +101.46 ± 13.69 1 7 93 147 2 +221.9 ± 35.4
405247 ncm-dbt-05 586604 500 203 56 241 +105.25 ± 13.72 0 8 91 147 4 +226.0 ± 35.82
405246 ncm-dbt-03 585253 500 200 65 235 +96.19 ± 14.41 0 14 90 143 3 +204.07 ± 36.13
405245 ncm-dbt-04 569470 500 201 61 238 +99.95 ± 13.36 0 5 105 135 5 +209.91 ± 32.83
405244 ncm-dbt-02 585379 500 204 55 241 +106.77 ± 12.53 0 3 97 148 2 +234.38 ± 34.19
405243 ncm-dbt-01 585379 500 224 52 224 +124.59 ± 12.14 0 0 82 164 4 +282.94 ± 37.2
405242 ncm-dbt-05 583321 500 206 58 236 +106.01 ± 13.72 0 9 87 151 3 +230.16 ± 36.73
405241 ncm-dbt-03 585337 500 200 64 236 +96.94 ± 13.49 0 9 98 141 2 +207.95 ± 34.43
405240 ncm-dbt-04 570669 500 206 58 236 +106.01 ± 13.56 0 6 95 144 5 +226.0 ± 34.87
405239 ncm-dbt-02 585632 500 204 49 247 +111.37 ± 13.22 0 7 83 158 2 +247.41 ± 37.61
405238 ncm-dbt-01 579909 500 217 55 228 +116.77 ± 13.19 0 5 82 159 4 +258.75 ± 37.76
405237 ncm-dbt-05 586266 500 201 53 246 +106.01 ± 12.88 0 7 88 155 0 +236.51 ± 36.44
405236 ncm-dbt-03 584874 500 211 61 228 +107.54 ± 13.06 0 7 87 155 1 +238.66 ± 36.67
405235 ncm-dbt-04 569350 500 196 50 254 +104.49 ± 14.19 1 8 89 148 4 +226.0 ± 36.29
405234 ncm-dbt-02 587282 500 188 65 247 +87.26 ± 13.8 0 13 102 134 1 +185.33 ± 33.81
405233 ncm-dbt-01 582277 500 209 50 241 +114.45 ± 12.67 0 5 82 162 1 +258.75 ± 37.76
405232 ncm-dbt-05 580779 500 208 80 212 +90.96 ± 13.87 0 11 103 133 3 +190.85 ± 33.57
405231 ncm-dbt-03 587367 500 205 51 244 +110.6 ± 12.15 0 3 90 157 0 +249.64 ± 35.69
405230 ncm-dbt-04 569589 500 195 62 243 +94.69 ± 12.81 0 7 103 140 0 +206.01 ± 33.36
405229 ncm-dbt-02 588856 500 205 68 227 +97.69 ± 13.82 0 12 90 147 1 +211.87 ± 36.13
405228 ncm-dbt-01 585928 500 206 50 244 +112.14 ± 13.04 0 5 87 155 3 +247.41 ± 36.56
405227 ncm-dbt-04 570148 500 201 63 236 +98.44 ± 14.14 0 11 94 141 4 +207.95 ± 35.29
405226 ncm-dbt-02 586731 500 195 56 249 +99.2 ± 14.15 0 13 87 148 2 +213.85 ± 36.76
405225 ncm-dbt-03 584411 500 207 58 235 +106.77 ± 14.21 0 8 92 143 7 +223.94 ± 35.61
405224 ncm-dbt-05 586985 500 205 66 229 +99.2 ± 13.67 0 10 93 145 2 +213.85 ± 35.47
405223 ncm-dbt-01 583992 500 210 54 236 +112.14 ± 13.22 0 5 88 153 4 +245.2 ± 36.32
405222 ncm-dbt-02 587367 500 217 64 219 +109.83 ± 13.73 0 9 82 156 3 +240.82 ± 37.9
405221 ncm-dbt-03 589497 500 210 54 236 +112.14 ± 13.73 0 9 79 159 3 +247.41 ± 38.64
405220 ncm-dbt-04 570188 500 194 59 247 +96.19 ± 14.26 1 11 92 144 2 +207.95 ± 35.71
405219 ncm-dbt-01 587028 500 200 48 252 +109.07 ± 13.4 0 6 90 150 4 +236.51 ± 35.94
405218 ncm-dbt-05 583572 500 197 55 248 +101.46 ± 12.69 0 5 99 145 1 +221.9 ± 33.98

Commit

Commit ID 43d8ccf85641addd49a5c7e295919fa16c88b72c
Author Nonlinear2
Date 2025-03-21 10:21:10 UTC
change the bonusScale depth component Passed STC: https://tests.stockfishchess.org/tests/view/67d35f66517865b4a2dfc801 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 110816 W: 28875 L: 28449 D: 53492 Ptnml(0-2): 329, 13064, 28231, 13420, 364 Passed LTC: https://tests.stockfishchess.org/tests/view/67d4bdf0517865b4a2dfd131 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 121824 W: 31047 L: 30559 D: 60218 Ptnml(0-2): 52, 13056, 34214, 13532, 58 closes https://github.com/official-stockfish/Stockfish/pull/5932 Bench: 2128807
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