Dev Builds » 20230922-1703

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 06:54:50 583468 4000 1389 619 1992 +67.73 ± 5.07 4 153 922 911 10 +139.81 ± 11.18
ncm-dbt-02 06:55:02 586348 4000 1382 670 1948 +62.51 ± 5.07 1 176 941 874 8 +127.96 ± 11.07
ncm-dbt-03 06:56:48 584257 4010 1398 682 1930 +62.71 ± 4.94 3 153 978 867 4 +129.59 ± 10.82
ncm-dbt-04 06:57:09 567529 3994 1356 671 1967 +60.18 ± 5.03 3 172 963 855 4 +124.01 ± 10.93
ncm-dbt-05 06:56:35 579502 3996 1386 697 1913 +60.51 ± 5.13 2 187 937 864 8 +123.75 ± 11.11
20000 6911 3339 9750 +62.72 ± 2.26 13 841 4741 4371 34 +128.99 ± 4.93

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
423001 ncm-dbt-03 585000 10 5 2 3 +107.43 ± 84.35 0 0 2 3 0 +240.65 ± 570.11
423000 ncm-dbt-05 578836 496 180 90 226 +63.75 ± 13.87 0 19 120 109 0 +132.1 ± 30.99
422999 ncm-dbt-04 566849 494 177 91 226 +61.11 ± 13.94 1 17 124 105 0 +127.85 ± 30.35
422998 ncm-dbt-02 585717 500 164 71 265 +65.38 ± 13.72 0 18 121 111 0 +135.76 ± 30.83
422997 ncm-dbt-01 582903 500 177 80 243 +68.27 ± 14.67 2 17 114 116 1 +143.89 ± 31.92
422996 ncm-dbt-03 583950 500 168 81 251 +61.07 ± 13.53 0 18 127 105 0 +126.18 ± 29.94
422995 ncm-dbt-05 580033 500 164 91 245 +51.09 ± 14.58 0 28 122 99 1 +102.97 ± 30.86
422994 ncm-dbt-04 566572 500 158 87 255 +49.67 ± 14.51 0 28 124 97 1 +99.95 ± 30.58
422993 ncm-dbt-02 587240 500 184 86 230 +68.99 ± 14.28 0 19 116 113 2 +140.62 ± 31.61
422992 ncm-dbt-01 584076 500 160 74 266 +60.36 ± 14.76 1 22 119 106 2 +123.02 ± 31.23
422991 ncm-dbt-03 583908 500 174 88 238 +60.36 ± 14.49 1 22 117 110 0 +126.18 ± 31.53
422990 ncm-dbt-05 570509 500 170 84 246 +60.36 ± 13.93 0 21 122 107 0 +124.6 ± 30.76
422989 ncm-dbt-04 568951 500 176 85 239 +63.95 ± 14.23 0 22 115 113 0 +132.54 ± 31.82
422988 ncm-dbt-01 582193 500 174 79 247 +66.82 ± 14.06 0 18 121 109 2 +135.76 ± 30.83
422987 ncm-dbt-02 585464 500 168 87 245 +56.78 ± 14.6 0 27 115 108 0 +116.78 ± 31.85
422986 ncm-dbt-03 583196 500 172 92 236 +56.07 ± 14.29 1 22 123 104 0 +116.78 ± 30.65
422985 ncm-dbt-05 579083 500 173 87 240 +60.36 ± 14.76 0 26 113 110 1 +123.02 ± 32.15
422984 ncm-dbt-04 568196 500 178 72 250 +74.79 ± 14.06 0 17 111 121 1 +155.54 ± 32.36
422983 ncm-dbt-02 586901 500 176 88 236 +61.79 ± 14.14 0 20 124 104 2 +124.6 ± 30.44
422982 ncm-dbt-01 583447 500 172 66 262 +74.79 ± 15.44 1 23 97 127 2 +155.54 ± 34.69
422981 ncm-dbt-03 584285 500 169 79 252 +63.23 ± 13.18 1 11 136 101 1 +130.94 ± 28.36
422980 ncm-dbt-05 576946 500 196 88 216 +76.25 ± 14.25 0 18 107 124 1 +158.93 ± 33.03
422979 ncm-dbt-01 583824 500 176 81 243 +66.82 ± 14.62 0 21 116 110 3 +134.15 ± 31.65
422978 ncm-dbt-04 565115 500 176 84 240 +64.66 ± 14.94 1 23 110 115 1 +134.15 ± 32.59
422977 ncm-dbt-02 583572 500 171 86 243 +59.64 ± 14.73 0 26 114 109 1 +121.46 ± 32.0
422976 ncm-dbt-03 587113 500 182 85 233 +68.27 ± 13.97 0 19 115 116 0 +142.26 ± 31.77
422975 ncm-dbt-05 576414 500 171 89 240 +57.5 ± 14.76 0 26 118 104 2 +115.23 ± 31.41
422974 ncm-dbt-02 586689 500 173 75 252 +68.99 ± 13.71 0 16 121 112 1 +142.26 ± 30.77
422973 ncm-dbt-03 586139 500 191 82 227 +76.97 ± 14.27 0 16 112 119 3 +157.24 ± 32.18
422972 ncm-dbt-01 584034 500 175 85 240 +63.23 ± 14.06 0 21 118 111 0 +130.94 ± 31.35
422971 ncm-dbt-04 568832 500 171 88 241 +58.21 ± 13.4 0 18 131 101 0 +119.89 ± 29.37
422970 ncm-dbt-05 580530 500 166 78 256 +61.79 ± 14.27 1 19 122 107 1 +127.76 ± 30.73
422969 ncm-dbt-02 587749 500 176 87 237 +62.51 ± 14.72 0 25 112 112 1 +127.76 ± 32.29
422968 ncm-dbt-01 584453 500 178 85 237 +65.38 ± 13.86 0 19 119 112 0 +135.76 ± 31.16
422967 ncm-dbt-03 581610 500 169 98 233 +49.67 ± 13.69 0 23 133 94 0 +101.46 ± 29.24
422966 ncm-dbt-04 567720 500 153 76 271 +53.94 ± 14.59 1 25 120 104 0 +112.14 ± 31.13
422965 ncm-dbt-02 587452 500 170 90 240 +56.07 ± 14.83 1 25 118 105 1 +115.23 ± 31.41
422964 ncm-dbt-01 582819 500 177 69 254 +76.25 ± 13.21 0 12 118 120 0 +160.64 ± 31.07
422963 ncm-dbt-05 593672 500 166 90 244 +53.22 ± 15.47 1 30 113 104 2 +107.54 ± 32.15
422962 ncm-dbt-04 567997 500 167 88 245 +55.36 ± 13.98 0 22 128 99 1 +112.14 ± 29.92
422961 ncm-dbt-03 583112 500 168 75 257 +65.38 ± 14.29 0 22 113 115 0 +135.76 ± 32.12

Commit

Commit ID 97f706ecc11459c8d0aa1901134d12fba00b4b15
Author mstembera
Date 2023-09-22 17:03:47 UTC
Sparse impl of affine_transform_non_ssse3() deal with the general case About a 8.6% speedup (for general arch) Results for 200 tests for each version: Base Test Diff Mean 141741 153998 -12257 StDev 2990 3042 3742 p-value: 0.999 speedup: 0.086 closes https://github.com/official-stockfish/Stockfish/pull/4786 No functional change
Copyright 2011–2025 Next Chess Move LLC