Dev Builds » 20210713-1523

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 06:52:45 577774 4000 511 1501 1988 -87.81 ± 5.14 32 1044 807 116 1 -181.48 ± 11.98
ncm-dbt-02 06:53:13 585314 4000 499 1534 1967 -91.99 ± 5.23 36 1087 754 122 1 -190.85 ± 12.41
ncm-dbt-03 06:54:52 584251 3992 492 1510 1990 -90.6 ± 5.12 29 1075 777 115 0 -188.77 ± 12.22
ncm-dbt-04 06:54:14 568539 4014 500 1551 1963 -93.14 ± 5.04 34 1080 797 95 1 -194.21 ± 12.04
ncm-dbt-05 06:53:56 581739 3994 501 1518 1975 -90.46 ± 5.17 36 1060 787 113 1 -187.04 ± 12.14
20000 2503 7614 9883 -90.8 ± 2.3 167 5346 3922 561 4 -188.45 ± 5.43

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
418322 ncm-dbt-04 566533 14 2 7 5 -129.72 ± 68.06 0 5 2 0 0 -311.09 ± 530.6
418321 ncm-dbt-03 583447 492 64 183 245 -85.73 ± 14.22 2 129 101 14 0 -179.73 ± 34.0
418320 ncm-dbt-05 580199 494 68 187 239 -85.37 ± 14.32 3 127 103 14 0 -177.05 ± 33.64
418319 ncm-dbt-02 585759 500 57 195 248 -98.44 ± 14.29 5 139 95 11 0 -206.01 ± 35.09
418318 ncm-dbt-01 578177 500 62 198 240 -96.94 ± 15.16 7 137 91 15 0 -198.34 ± 35.92
418317 ncm-dbt-04 568792 500 58 188 254 -92.46 ± 15.08 3 142 88 16 1 -196.45 ± 36.5
418316 ncm-dbt-05 584495 500 73 195 232 -86.52 ± 14.23 3 130 103 14 0 -179.9 ± 33.65
418315 ncm-dbt-03 583740 500 58 194 248 -96.94 ± 14.42 5 138 95 12 0 -202.15 ± 35.11
418314 ncm-dbt-02 583908 500 62 192 246 -92.45 ± 14.94 6 133 96 15 0 -189.0 ± 34.95
418313 ncm-dbt-01 578259 500 59 187 254 -90.96 ± 14.17 4 132 102 12 0 -189.0 ± 33.78
418312 ncm-dbt-04 570228 500 59 190 251 -93.2 ± 14.36 4 136 97 13 0 -194.57 ± 34.74
418311 ncm-dbt-05 580821 500 60 185 255 -88.74 ± 15.28 7 128 98 17 0 -178.11 ± 34.58
418310 ncm-dbt-03 583572 500 63 193 244 -92.45 ± 14.65 5 134 97 14 0 -190.85 ± 34.75
418309 ncm-dbt-02 587325 500 62 185 253 -87.26 ± 14.1 3 130 104 13 0 -181.7 ± 33.45
418308 ncm-dbt-01 578424 500 68 191 241 -87.26 ± 14.25 2 134 99 15 0 -183.51 ± 34.39
418307 ncm-dbt-04 566691 500 62 196 242 -95.44 ± 14.25 6 132 102 10 0 -196.45 ± 33.71
418306 ncm-dbt-05 581194 500 66 185 249 -84.3 ± 14.18 6 118 115 11 0 -169.27 ± 31.5
418305 ncm-dbt-03 586985 500 57 196 247 -99.2 ± 14.3 2 149 85 14 0 -213.85 ± 37.18
418304 ncm-dbt-02 584243 500 64 196 240 -93.95 ± 14.82 4 140 90 16 0 -196.45 ± 36.11
418303 ncm-dbt-01 574947 500 67 189 244 -86.52 ± 14.81 4 131 98 17 0 -178.11 ± 34.58
418302 ncm-dbt-04 568951 500 77 188 235 -78.43 ± 14.6 4 120 109 17 0 -158.93 ± 32.69
418301 ncm-dbt-05 579289 500 46 202 252 -112.14 ± 15.0 6 158 72 14 0 -240.82 ± 40.3
418300 ncm-dbt-03 584369 500 66 184 250 -83.57 ± 14.6 4 126 104 16 0 -171.02 ± 33.51
418299 ncm-dbt-02 587155 500 64 195 241 -93.2 ± 14.36 4 136 97 13 0 -194.57 ± 34.74
418298 ncm-dbt-01 579702 500 66 191 243 -88.74 ± 13.98 4 127 110 8 1 -185.33 ± 32.23
418297 ncm-dbt-04 566849 500 56 196 248 -99.95 ± 14.0 3 145 91 11 0 -213.85 ± 35.9
418296 ncm-dbt-03 583782 500 72 182 246 -77.7 ± 15.4 6 119 104 21 0 -153.86 ± 33.54
418295 ncm-dbt-05 582861 500 56 199 245 -102.22 ± 14.18 5 143 92 10 0 -215.85 ± 35.68
418294 ncm-dbt-01 578177 500 70 176 254 -74.79 ± 14.2 1 122 109 18 0 -155.54 ± 32.7
418293 ncm-dbt-02 586774 500 55 188 257 -94.69 ± 15.26 7 135 92 16 0 -192.71 ± 35.72
418292 ncm-dbt-04 567958 500 65 203 232 -98.44 ± 13.51 4 137 102 7 0 -207.95 ± 33.55
418291 ncm-dbt-03 585506 500 61 193 246 -93.95 ± 14.38 4 137 96 13 0 -196.45 ± 34.93
418290 ncm-dbt-04 570148 500 65 192 243 -90.22 ± 13.7 3 131 106 10 0 -189.0 ± 32.98
418289 ncm-dbt-05 582903 500 69 173 258 -73.34 ± 14.01 0 122 110 18 0 -153.86 ± 32.54
418288 ncm-dbt-01 576455 500 60 192 248 -93.95 ± 14.38 8 125 108 9 0 -189.0 ± 32.58
418287 ncm-dbt-02 583237 500 63 185 252 -86.52 ± 15.77 6 131 93 19 1 -176.33 ± 35.47
418286 ncm-dbt-05 582152 500 63 192 245 -91.71 ± 15.34 6 134 94 15 1 -189.0 ± 35.33
418285 ncm-dbt-02 584117 500 72 198 230 -89.48 ± 14.73 1 143 87 19 0 -190.85 ± 36.65
418284 ncm-dbt-03 582611 500 51 185 264 -95.44 ± 13.63 1 143 95 11 0 -206.01 ± 35.09
418283 ncm-dbt-01 578054 500 59 177 264 -83.57 ± 15.16 2 136 90 22 0 -174.55 ± 35.98
418282 ncm-dbt-04 570709 500 56 191 253 -96.19 ± 14.56 7 132 100 11 0 -196.45 ± 34.12

Commit

Commit ID 09b6d28391cf582d99897360b225bcbbe38dd1c6
Author Vizvezdenec
Date 2021-07-13 15:23:30 UTC
Remove futility pruning depth limit This patch removes futility pruning depth limit for child node futility pruning. In current master it was double capped by depth and by futility margin, which is also a function of depth, which didn't make much sense. passed STC https://tests.stockfishchess.org/tests/view/60e2418f9ea99d7c2d693e64 LLR: 2.95 (-2.94,2.94) <-2.50,0.50> Total: 116168 W: 9100 L: 9097 D: 97971 Ptnml(0-2): 319, 7496, 42476, 7449, 344 passed LTC https://tests.stockfishchess.org/tests/view/60e3374f9ea99d7c2d693f20 LLR: 2.96 (-2.94,2.94) <-2.50,0.50> Total: 43304 W: 1282 L: 1231 D: 40791 Ptnml(0-2): 8, 1126, 19335, 1173, 10 closes https://github.com/official-stockfish/Stockfish/pull/3606 bench 4965493
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