Dev Builds » 20240411-2043

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 06:50:53 583817 4000 1436 585 1979 +75.06 ± 5.08 0 155 845 994 6 +156.6 ± 11.71
ncm-dbt-02 06:52:55 586425 4000 1435 638 1927 +70.17 ± 5.03 2 139 936 906 17 +143.48 ± 11.07
ncm-dbt-03 06:49:36 587114 4000 1441 611 1948 +73.16 ± 5.05 3 142 886 960 9 +152.18 ± 11.42
ncm-dbt-04 06:49:00 570815 4000 1448 592 1960 +75.52 ± 5.12 1 147 864 971 17 +155.54 ± 11.58
ncm-dbt-05 06:56:05 584776 4000 1382 599 2019 +68.9 ± 4.96 0 150 922 923 5 +142.66 ± 11.18
20000 7142 3025 9833 +72.56 ± 2.26 6 733 4453 4754 54 +150.05 ± 5.09

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
381540 ncm-dbt-05 581943 500 168 75 257 +65.38 ± 13.72 0 18 121 111 0 +135.76 ± 30.83
381539 ncm-dbt-02 586477 500 182 78 240 +73.33 ± 13.11 0 11 125 113 1 +152.18 ± 29.92
381538 ncm-dbt-01 582778 500 178 75 247 +72.61 ± 14.69 0 23 101 126 0 +152.18 ± 34.03
381537 ncm-dbt-03 587707 500 183 71 246 +79.17 ± 14.34 1 16 103 130 0 +169.27 ± 33.7
381536 ncm-dbt-04 571310 500 188 71 241 +82.83 ± 14.58 0 15 108 122 5 +167.53 ± 32.81
381535 ncm-dbt-05 583824 500 169 66 265 +72.61 ± 13.69 0 16 115 119 0 +152.18 ± 31.7
381534 ncm-dbt-02 586774 500 181 84 235 +68.27 ± 14.12 0 17 122 108 3 +137.37 ± 30.65
381533 ncm-dbt-01 581319 500 188 74 238 +80.63 ± 15.22 0 24 89 136 1 +169.27 ± 36.1
381532 ncm-dbt-03 584874 500 188 91 221 +68.27 ± 14.54 0 20 116 111 3 +137.37 ± 31.63
381531 ncm-dbt-04 569629 500 169 78 253 +63.95 ± 15.17 1 24 110 113 2 +130.94 ± 32.59
381530 ncm-dbt-05 588941 500 162 80 258 +57.5 ± 14.76 0 28 112 110 0 +118.33 ± 32.29
381529 ncm-dbt-02 587070 500 171 77 252 +66.1 ± 15.0 1 22 111 114 2 +135.76 ± 32.43
381528 ncm-dbt-01 583950 500 170 69 261 +71.16 ± 13.93 0 16 119 113 2 +145.54 ± 31.07
381527 ncm-dbt-03 587409 500 185 75 240 +77.7 ± 13.71 0 13 116 119 2 +160.64 ± 31.43
381526 ncm-dbt-04 569789 500 176 71 253 +74.06 ± 14.18 0 18 110 121 1 +153.86 ± 32.54
381525 ncm-dbt-05 585421 500 171 80 249 +63.94 ± 13.8 0 18 124 107 1 +130.94 ± 30.38
381524 ncm-dbt-02 584243 500 195 79 226 +82.1 ± 14.56 0 15 109 121 5 +165.8 ± 32.64
381523 ncm-dbt-01 582987 500 181 83 236 +68.99 ± 13.86 0 18 116 116 0 +143.89 ± 31.59
381522 ncm-dbt-03 586393 500 179 82 239 +68.27 ± 14.54 1 18 116 113 2 +140.62 ± 31.61
381521 ncm-dbt-04 569829 500 185 75 240 +77.7 ± 14.0 0 15 112 121 2 +160.64 ± 32.15
381520 ncm-dbt-05 582318 500 171 71 258 +70.43 ± 14.48 0 20 112 116 2 +143.89 ± 32.25
381519 ncm-dbt-02 587282 500 178 70 252 +76.25 ± 14.1 1 14 112 122 1 +160.64 ± 32.15
381518 ncm-dbt-01 583614 500 179 81 240 +68.99 ± 14.56 0 22 109 118 1 +142.26 ± 32.74
381517 ncm-dbt-03 586562 500 167 75 258 +64.66 ± 13.83 0 19 120 111 0 +134.15 ± 31.01
381516 ncm-dbt-04 570829 500 181 85 234 +67.54 ± 14.65 0 22 112 114 2 +137.37 ± 32.27
381515 ncm-dbt-05 581111 500 180 70 250 +77.7 ± 14.44 0 18 106 124 2 +160.64 ± 33.2
381514 ncm-dbt-02 585970 500 173 82 245 +63.95 ± 13.51 0 17 125 108 0 +132.54 ± 30.2
381513 ncm-dbt-01 586774 500 181 67 252 +80.63 ± 14.38 0 18 101 130 1 +169.27 ± 34.05
381512 ncm-dbt-03 586901 500 172 78 250 +66.1 ± 14.86 0 26 104 120 0 +137.37 ± 33.52
381511 ncm-dbt-04 570869 500 178 69 253 +76.97 ± 14.27 0 15 115 116 4 +155.54 ± 31.67
381510 ncm-dbt-05 585801 500 178 86 236 +64.66 ± 13.54 0 17 124 109 0 +134.15 ± 30.35
381509 ncm-dbt-02 586393 500 178 90 232 +61.79 ± 14.82 0 26 111 112 1 +126.18 ± 32.44
381508 ncm-dbt-04 571672 500 192 74 234 +83.57 ± 14.16 0 17 98 135 0 +178.11 ± 34.58
381507 ncm-dbt-01 585084 500 178 68 254 +77.7 ± 14.0 0 16 109 124 1 +162.35 ± 32.67
381506 ncm-dbt-03 588856 500 187 71 242 +82.1 ± 14.56 1 16 100 132 1 +174.55 ± 34.22
381505 ncm-dbt-02 587197 500 177 78 245 +69.71 ± 14.31 0 17 121 108 4 +138.99 ± 30.8
381504 ncm-dbt-05 588856 500 183 71 246 +79.17 ± 13.75 0 15 108 127 0 +167.53 ± 32.81
381503 ncm-dbt-03 588217 500 180 68 252 +79.17 ± 13.75 0 14 111 124 1 +165.8 ± 32.28
381502 ncm-dbt-04 572598 500 179 69 252 +77.7 ± 14.72 0 21 99 129 1 +162.35 ± 34.39
381501 ncm-dbt-01 584034 500 181 68 251 +79.9 ± 14.21 0 18 101 131 0 +169.27 ± 34.05

Commit

Commit ID d6bdcec52c33a67970721c4443136b42265a6148
Author gab8192
Date 2024-04-11 20:43:00 UTC
Remove an useless assignment The assignment (ss + 1)->excludedMove = Move::none() can be simplified away because when that line is reached, (ss + 1)->excludedMove is always already none. The only moment stack[x]->excludedMove is modified, is during singular search, but it is reset to none right after the singular search is finished. closes https://github.com/official-stockfish/Stockfish/pull/5153 No functional change
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