Dev Builds » 20231103-2139

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 07:05:53 584542 4010 1390 725 1895 +58.15 ± 5.18 6 186 964 835 14 +118.21 ± 10.94
ncm-dbt-02 07:03:56 586971 4000 1370 685 1945 +60.09 ± 5.07 4 168 979 837 12 +122.44 ± 10.83
ncm-dbt-03 07:05:05 587301 4000 1391 687 1922 +61.79 ± 5.06 5 162 967 856 10 +126.77 ± 10.9
ncm-dbt-04 07:04:38 571302 4000 1396 734 1870 +58.03 ± 5.11 1 189 970 827 13 +117.16 ± 10.9
ncm-dbt-05 07:04:31 584389 3990 1402 715 1873 +60.42 ± 5.13 1 188 938 859 9 +123.16 ± 11.1
20000 6949 3546 9505 +59.7 ± 2.29 17 893 4818 4214 58 +121.53 ± 4.89

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
403070 ncm-dbt-01 584579 10 5 0 5 +190.62 ± 11.11 0 0 0 5 0 +1199.83 ± 231.31
403069 ncm-dbt-05 583824 490 160 74 256 +61.61 ± 14.9 0 25 110 109 1 +125.76 ± 32.59
403068 ncm-dbt-02 584790 500 175 80 245 +66.82 ± 14.2 0 20 116 113 1 +137.37 ± 31.63
403067 ncm-dbt-03 585337 500 172 86 242 +60.36 ± 14.76 1 23 116 109 1 +124.6 ± 31.69
403066 ncm-dbt-04 571752 500 185 91 224 +66.1 ± 13.6 0 16 125 108 1 +135.76 ± 30.17
403065 ncm-dbt-01 586943 500 161 103 236 +40.48 ± 14.78 0 34 125 90 1 +80.63 ± 30.5
403064 ncm-dbt-05 581985 500 182 91 227 +63.94 ± 14.91 0 25 111 112 2 +129.35 ± 32.44
403063 ncm-dbt-02 587197 500 173 79 248 +66.1 ± 14.73 0 22 115 110 3 +132.54 ± 31.82
403062 ncm-dbt-04 571712 500 180 90 230 +63.23 ± 15.53 0 29 105 113 3 +126.18 ± 33.33
403061 ncm-dbt-01 583950 500 165 92 243 +51.09 ± 14.85 1 26 124 97 2 +102.97 ± 30.57
403060 ncm-dbt-03 586985 500 177 85 238 +64.66 ± 13.69 0 16 128 104 2 +130.94 ± 29.72
403059 ncm-dbt-05 582235 500 183 97 220 +60.36 ± 15.02 0 27 112 109 2 +121.46 ± 32.29
403058 ncm-dbt-02 587579 500 179 80 241 +69.71 ± 14.45 1 15 122 108 4 +140.62 ± 30.61
403057 ncm-dbt-01 584159 500 187 99 214 +61.79 ± 15.47 3 20 116 108 3 +127.76 ± 31.68
403056 ncm-dbt-04 569829 500 177 102 221 +52.51 ± 13.98 0 23 130 96 1 +106.01 ± 29.66
403055 ncm-dbt-03 588941 500 178 83 239 +66.82 ± 14.89 2 19 112 116 1 +140.62 ± 32.26
403054 ncm-dbt-02 587155 500 176 83 241 +65.38 ± 14.97 0 25 109 114 2 +132.54 ± 32.75
403053 ncm-dbt-05 585084 500 169 71 260 +68.99 ± 13.11 0 12 129 108 1 +142.26 ± 29.38
403052 ncm-dbt-04 571873 500 172 95 233 +53.93 ± 14.19 0 24 126 99 1 +109.07 ± 30.24
403051 ncm-dbt-01 582068 500 168 78 254 +63.23 ± 14.34 0 21 120 107 2 +127.76 ± 31.05
403050 ncm-dbt-03 587537 500 178 92 230 +60.36 ± 13.64 1 16 129 104 0 +126.18 ± 29.62
403049 ncm-dbt-02 588345 500 163 87 250 +53.22 ± 13.73 0 21 133 95 1 +107.54 ± 29.18
403048 ncm-dbt-05 584537 500 180 95 225 +59.64 ± 15.51 0 30 108 109 3 +118.33 ± 32.88
403047 ncm-dbt-04 571190 500 173 90 237 +58.21 ± 14.79 0 26 117 105 2 +116.78 ± 31.56
403046 ncm-dbt-03 585801 500 179 82 239 +68.27 ± 14.94 1 21 110 116 2 +140.62 ± 32.58
403045 ncm-dbt-01 586477 500 172 95 233 +53.94 ± 14.32 1 23 124 102 0 +112.14 ± 30.53
403044 ncm-dbt-05 584537 500 177 89 234 +61.79 ± 13.12 0 15 132 103 0 +127.76 ± 29.1
403043 ncm-dbt-02 586901 500 170 94 236 +53.22 ± 14.42 1 24 123 102 0 +110.6 ± 30.69
403042 ncm-dbt-04 571632 500 172 80 248 +64.66 ± 13.97 0 18 124 106 2 +130.94 ± 30.38
403041 ncm-dbt-03 589497 500 161 91 248 +48.96 ± 13.79 0 23 135 91 1 +98.44 ± 28.96
403040 ncm-dbt-01 584159 500 178 83 239 +66.82 ± 15.42 1 24 107 115 3 +135.76 ± 33.06
403039 ncm-dbt-05 585759 500 175 110 215 +45.42 ± 14.94 1 31 120 98 0 +93.95 ± 31.17
403038 ncm-dbt-02 587197 500 166 82 252 +58.93 ± 13.29 0 17 132 101 0 +121.46 ± 29.18
403037 ncm-dbt-04 569350 500 173 97 230 +53.22 ± 14.82 1 25 123 99 2 +107.54 ± 30.7
403036 ncm-dbt-01 582152 500 175 94 231 +56.78 ± 14.99 0 28 115 105 2 +113.68 ± 31.86
403035 ncm-dbt-03 586266 500 176 80 244 +67.54 ± 14.78 0 23 110 115 2 +137.37 ± 32.59
403034 ncm-dbt-05 587155 500 176 88 236 +61.79 ± 14.27 0 23 116 111 0 +127.76 ± 31.68
403033 ncm-dbt-02 586604 500 168 100 232 +47.55 ± 14.66 2 24 129 94 1 +98.44 ± 29.86
403032 ncm-dbt-01 586393 500 179 81 240 +68.99 ± 12.8 0 10 133 106 1 +142.26 ± 28.66
403031 ncm-dbt-04 573082 500 164 89 247 +52.51 ± 14.66 0 28 120 101 1 +106.01 ± 31.14
403030 ncm-dbt-03 588047 500 170 88 242 +57.5 ± 13.94 0 21 127 101 1 +116.78 ± 30.03

Commit

Commit ID e277dda7166992536124891e212d6d6a866f8a12
Author cj5716
Date 2023-11-03 21:39:04 UTC
Prefetch TT entries in probcut Passed STC: LLR: 2.93 (-2.94,2.94) <0.00,2.00> Total: 101344 W: 25893 L: 25491 D: 49960 Ptnml(0-2): 303, 11350, 26991, 11698, 330 https://tests.stockfishchess.org/tests/view/6540daa6cc309ae83956669b slight speedup: ``` Result of 100 runs ================== base (./stockfish.master ) = 1170705 +/- 3133 test (./stockfish.patch ) = 1174545 +/- 2895 diff = +3841 +/- 3196 speedup = +0.0033 P(speedup > 0) = 0.9907 ``` closes https://github.com/official-stockfish/Stockfish/pull/4856 No functional change
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