Dev Builds » 20230422-0847

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 06:55:40 584434 4000 1269 744 1987 +45.87 ± 5.14 1 232 1019 737 11 +91.52 ± 10.63
ncm-dbt-02 06:56:25 587246 4000 1286 814 1900 +41.19 ± 5.07 1 244 1041 710 4 +83.02 ± 10.5
ncm-dbt-03 06:55:44 586973 4000 1276 788 1936 +42.6 ± 5.12 3 239 1032 719 7 +85.78 ± 10.55
ncm-dbt-04 06:56:30 569944 4000 1254 770 1976 +42.25 ± 4.94 0 221 1078 697 4 +85.04 ± 10.27
ncm-dbt-05 06:57:07 583971 4000 1266 794 1940 +41.19 ± 5.18 3 254 1017 720 6 +83.02 ± 10.65
20000 6351 3910 9739 +42.62 ± 2.28 8 1190 5187 3583 32 +85.67 ± 4.7

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
393943 ncm-dbt-05 585928 500 163 85 252 +54.65 ± 14.08 0 24 124 102 0 +112.14 ± 30.53
393942 ncm-dbt-02 586774 500 171 95 234 +53.22 ± 14.69 0 29 116 105 0 +109.07 ± 31.72
393941 ncm-dbt-04 570348 500 167 91 242 +53.22 ± 14.82 0 28 120 100 2 +106.01 ± 31.14
393940 ncm-dbt-01 585548 500 142 92 266 +34.86 ± 14.83 0 38 124 88 0 +70.44 ± 30.65
393939 ncm-dbt-03 587155 500 160 95 245 +45.42 ± 14.28 0 28 130 91 1 +90.97 ± 29.76
393938 ncm-dbt-01 582694 500 167 102 231 +45.42 ± 14.01 1 23 137 88 1 +92.46 ± 28.72
393937 ncm-dbt-05 588686 500 162 97 241 +45.42 ± 15.07 0 33 121 94 2 +89.48 ± 31.03
393936 ncm-dbt-02 588686 500 160 92 248 +47.55 ± 13.71 0 24 134 92 0 +96.94 ± 29.13
393935 ncm-dbt-04 569629 500 167 80 253 +61.07 ± 13.09 0 15 133 102 0 +126.18 ± 28.95
393934 ncm-dbt-03 584453 500 150 87 263 +44.01 ± 15.11 1 30 127 89 3 +86.52 ± 30.2
393933 ncm-dbt-01 584537 500 162 98 240 +44.72 ± 15.15 0 35 117 97 1 +89.48 ± 31.58
393932 ncm-dbt-05 581527 500 160 92 248 +47.54 ± 13.99 0 25 133 91 1 +95.44 ± 29.29
393931 ncm-dbt-02 587622 500 147 95 258 +36.26 ± 14.79 0 37 124 89 0 +73.34 ± 30.64
393930 ncm-dbt-04 569989 500 154 100 246 +37.67 ± 14.35 0 33 130 87 0 +76.25 ± 29.82
393929 ncm-dbt-03 587579 500 162 96 242 +46.13 ± 14.58 0 31 122 97 0 +93.95 ± 30.89
393928 ncm-dbt-01 584159 500 165 83 252 +57.5 ± 14.76 0 23 127 95 5 +110.6 ± 30.08
393927 ncm-dbt-05 580572 500 164 97 239 +46.84 ± 15.01 1 31 118 100 0 +96.94 ± 31.44
393926 ncm-dbt-04 571351 500 151 88 261 +44.01 ± 13.65 0 25 137 88 0 +89.48 ± 28.74
393925 ncm-dbt-02 586562 500 161 106 233 +38.37 ± 15.17 0 38 120 91 1 +76.25 ± 31.18
393924 ncm-dbt-03 588430 500 168 112 220 +39.08 ± 14.44 0 31 134 83 2 +76.25 ± 29.26
393923 ncm-dbt-05 587537 500 147 109 244 +26.46 ± 14.39 0 39 134 77 0 +53.22 ± 29.35
393922 ncm-dbt-01 583614 500 159 94 247 +45.42 ± 14.68 0 31 124 94 1 +90.97 ± 30.61
393921 ncm-dbt-04 568792 500 160 112 228 +33.46 ± 13.25 0 27 148 75 0 +67.55 ± 27.3
393920 ncm-dbt-02 585717 500 170 114 216 +39.08 ± 13.34 0 24 147 78 1 +77.71 ± 27.35
393919 ncm-dbt-03 585885 500 158 98 244 +41.89 ± 14.34 0 30 131 88 1 +83.57 ± 29.65
393918 ncm-dbt-05 584243 500 154 91 255 +44.01 ± 15.11 1 32 121 95 1 +89.48 ± 31.03
393917 ncm-dbt-01 584369 500 154 92 254 +43.3 ± 13.88 0 27 134 89 0 +88.0 ± 29.2
393916 ncm-dbt-02 586943 500 166 97 237 +48.25 ± 14.16 0 27 127 96 0 +98.44 ± 30.15
393915 ncm-dbt-04 569151 500 134 100 266 +23.66 ± 14.05 0 38 140 72 0 +47.55 ± 28.56
393914 ncm-dbt-03 589924 500 160 104 236 +39.08 ± 13.76 0 28 138 84 0 +79.17 ± 28.67
393913 ncm-dbt-05 579413 500 168 114 218 +37.67 ± 15.5 1 37 121 89 2 +74.79 ± 31.04
393912 ncm-dbt-03 586816 500 161 88 251 +51.09 ± 14.98 1 29 116 104 0 +106.01 ± 31.72
393911 ncm-dbt-01 584243 500 167 95 238 +50.38 ± 14.41 0 26 128 94 2 +99.95 ± 30.0
393910 ncm-dbt-04 570428 500 161 97 242 +44.72 ± 14.24 0 27 134 87 2 +88.0 ± 29.2
393909 ncm-dbt-02 587579 500 152 116 232 +25.06 ± 13.2 0 30 155 64 1 +48.96 ± 26.43
393908 ncm-dbt-02 588089 500 159 99 242 +41.89 ± 15.37 1 35 118 95 1 +85.04 ± 31.44
393907 ncm-dbt-05 583866 500 148 109 243 +27.15 ± 13.64 0 33 145 72 0 +54.65 ± 27.83
393906 ncm-dbt-01 586308 500 153 88 259 +45.42 ± 14.41 0 29 128 92 1 +90.97 ± 30.05
393905 ncm-dbt-04 569869 500 160 102 238 +40.48 ± 13.85 0 28 136 86 0 +82.1 ± 28.94
393904 ncm-dbt-03 585548 500 157 108 235 +34.16 ± 14.39 1 32 134 83 0 +70.44 ± 29.29

Commit

Commit ID 7b9b793fd544aa7a599b113a40533cde16de640b
Author Guenther Demetz
Date 2023-04-22 08:47:51 UTC
Simplification of SEE verification logic Use same logic for all handled pieces. Don't prune the move if opponent King, Queen, Rook gets a discovered attack while or after the exchanges. remove an obsolete comment in position.cpp Passed STC non regression: https://tests.stockfishchess.org/tests/view/6437907594daa91835c290d0 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 107432 W: 28359 L: 28221 D: 50852 Ptnml(0-2): 298, 11724, 29524, 11882, 288 Passed LTC non-regression: https://tests.stockfishchess.org/tests/view/6438ed2ebd1a5470263c51e8 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 236288 W: 63656 L: 63656 D: 108976 Ptnml(0-2): 99, 22960, 72011, 22990, 84 closes https://github.com/official-stockfish/Stockfish/pull/4533 bench: 3741125
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