Dev Builds » 20230822-0922

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 06:54:30 582848 4000 1333 675 1992 +57.68 ± 5.08 4 181 976 831 8 +117.94 ± 10.86
ncm-dbt-02 06:55:27 585087 4002 1371 712 1919 +57.74 ± 4.92 0 168 1013 813 7 +117.49 ± 10.61
ncm-dbt-03 06:54:39 583776 4000 1399 718 1883 +59.73 ± 5.13 2 191 937 864 6 +122.44 ± 11.11
ncm-dbt-04 06:54:52 568714 4000 1359 696 1945 +58.12 ± 4.91 0 169 1002 826 3 +119.11 ± 10.68
ncm-dbt-05 06:56:27 579153 3998 1344 737 1917 +53.16 ± 5.19 4 207 978 798 12 +107.4 ± 10.86
20000 6806 3538 9656 +57.28 ± 2.26 10 916 4906 4132 36 +116.85 ± 4.84

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
423348 ncm-dbt-02 585674 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02 ↓
423347 ncm-dbt-05 580862 498 180 86 232 +66.37 ± 14.51 0 21 115 111 2 +134.74 ± 31.8 ↓
423346 ncm-dbt-01 585000 500 177 93 230 +58.93 ± 14.96 1 26 111 112 0 +123.02 ± 32.44 ↓
423345 ncm-dbt-03 582861 500 175 99 226 +53.22 ± 13.3 0 19 136 95 0 +109.07 ± 28.7 ↓
423344 ncm-dbt-02 584916 500 183 96 221 +61.07 ± 13.38 0 16 132 101 1 +124.6 ± 29.14 ↓
423343 ncm-dbt-04 567244 500 177 95 228 +57.5 ± 13.66 0 20 128 102 0 +118.33 ± 29.86 ↓
423342 ncm-dbt-05 575639 500 164 98 238 +46.13 ± 14.32 0 27 132 89 2 +90.97 ± 29.47 ↓
423341 ncm-dbt-01 580696 500 174 80 246 +66.1 ± 14.73 1 19 118 109 3 +134.15 ± 31.33 ↓
423340 ncm-dbt-04 569829 500 174 92 234 +57.5 ± 14.22 0 24 120 106 0 +118.33 ± 31.1 ↓
423339 ncm-dbt-02 584495 500 179 95 226 +58.93 ± 13.87 0 21 124 105 0 +121.46 ± 30.47 ↓
423338 ncm-dbt-03 583070 500 172 88 240 +58.93 ± 14.96 0 29 108 113 0 +121.46 ± 32.88 ↓
423337 ncm-dbt-05 578918 500 159 104 237 +38.37 ± 15.42 2 35 119 94 0 +80.63 ± 31.31 ↓
423336 ncm-dbt-01 583908 500 169 80 251 +62.51 ± 14.31 0 23 115 112 0 +129.35 ± 31.83 ↓
423335 ncm-dbt-02 582235 500 169 90 241 +55.36 ± 14.39 0 25 122 102 1 +112.14 ± 30.83 ↓
423334 ncm-dbt-04 569350 500 172 84 244 +61.79 ± 13.42 0 17 128 105 0 +127.76 ± 29.76 ↓
423333 ncm-dbt-03 587028 500 181 85 234 +67.55 ± 13.36 0 15 124 111 0 +140.62 ± 30.27 ↓
423332 ncm-dbt-05 579042 500 172 81 247 +63.94 ± 14.09 0 20 120 109 1 +130.94 ± 31.03 ↓
423331 ncm-dbt-01 583154 500 177 86 237 +63.94 ± 14.78 0 24 113 111 2 +129.35 ± 32.14 ↓
423330 ncm-dbt-02 586308 500 164 88 248 +53.22 ± 14.15 0 24 127 98 1 +107.54 ± 30.1 ↓
423329 ncm-dbt-04 568037 500 174 90 236 +58.93 ± 14.01 0 22 122 106 0 +121.46 ± 30.78 ↓
423328 ncm-dbt-03 584243 500 173 92 235 +56.78 ± 13.91 0 22 125 103 0 +116.78 ± 30.34 ↓
423327 ncm-dbt-05 581236 500 177 90 233 +61.08 ± 14.92 1 22 119 105 3 +123.02 ± 31.23 ↓
423326 ncm-dbt-01 583028 500 161 91 248 +48.96 ± 14.2 0 26 129 94 1 +98.44 ± 29.86 ↓
423325 ncm-dbt-02 586858 500 168 87 245 +56.78 ± 14.32 0 23 125 100 2 +113.68 ± 30.37 ↓
423324 ncm-dbt-04 567958 500 167 90 243 +53.93 ± 14.46 0 26 122 101 1 +109.07 ± 30.84 ↓
423323 ncm-dbt-03 582318 500 173 88 239 +59.64 ± 15.12 0 27 114 106 3 +118.33 ± 32.0 ↓
423322 ncm-dbt-01 583028 500 149 82 269 +46.84 ± 14.49 2 23 132 92 1 +96.94 ± 29.43 ↓
423321 ncm-dbt-02 586266 500 166 86 248 +56.07 ± 13.3 0 18 134 98 0 +115.23 ± 28.94 ↓
423320 ncm-dbt-04 569749 500 168 69 263 +69.71 ± 13.88 0 17 118 114 1 +143.89 ± 31.26 ↓
423319 ncm-dbt-05 576333 500 164 88 248 +53.22 ± 15.34 0 32 112 104 2 +106.01 ± 32.28 ↓
423318 ncm-dbt-03 583866 500 184 82 234 +71.89 ± 14.67 1 19 108 121 1 +150.51 ± 32.89 ↓
423317 ncm-dbt-01 583321 500 164 69 267 +66.82 ± 13.33 0 15 125 110 0 +138.99 ± 30.12 ↓
423316 ncm-dbt-02 583321 500 178 84 238 +66.1 ± 14.45 0 21 116 111 2 +134.15 ± 31.65 ↓
423315 ncm-dbt-04 569869 500 160 94 246 +46.13 ± 14.05 0 26 133 90 1 +92.46 ± 29.31 ↓
423314 ncm-dbt-05 578712 500 167 116 217 +35.56 ± 14.48 1 31 135 82 1 +71.89 ± 29.14 ↓
423313 ncm-dbt-03 585379 500 178 96 226 +57.5 ± 14.76 0 28 112 110 0 +118.33 ± 32.29 ↓
423312 ncm-dbt-01 580655 500 162 94 244 +47.54 ± 13.99 0 25 133 91 1 +95.44 ± 29.29 ↓
423311 ncm-dbt-02 585717 500 163 86 251 +53.93 ± 13.48 0 20 133 97 0 +110.6 ± 29.15 ↓
423310 ncm-dbt-04 567680 500 167 82 251 +59.64 ± 13.32 0 17 131 102 0 +123.02 ± 29.33 ↓
423309 ncm-dbt-03 581444 500 163 88 249 +52.51 ± 15.68 1 32 110 105 2 +106.01 ± 32.56 ↓
423308 ncm-dbt-05 582485 500 161 74 265 +61.07 ± 13.82 0 19 126 104 1 +124.6 ± 30.12 ↓

Commit

Commit ID 030b87182a7fff98b1724b857d6d40cda5d90b9f
Author cj5716
Date 2023-08-22 09:22:15 UTC
Do more full window searches Remove the value < beta condition for doing full window searches. As an added bonus the condition for full-window search is now much more similar to other fail-soft engines. Passed STC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 244608 W: 62286 L: 62294 D: 120028 Ptnml(0-2): 758, 28772, 63214, 28840, 720 https://tests.stockfishchess.org/tests/view/64d72d365b17f7c21c0e6675 Passed LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 311460 W: 78909 L: 78985 D: 153566 Ptnml(0-2): 129, 33959, 87656, 33831, 155 https://tests.stockfishchess.org/tests/view/64dca2265b17f7c21c0ee06c closes https://github.com/official-stockfish/Stockfish/pull/4755 Bench: 1624221
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