Dev Builds » 20211227-1543

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 06:51:45 583284 4000 836 1149 2015 -27.24 ± 5.2 4 625 1056 310 5 -55.0 ± 10.45
ncm-dbt-02 06:51:13 586017 4000 864 1202 1934 -29.43 ± 5.25 3 653 1027 313 4 -59.46 ± 10.61
ncm-dbt-03 06:51:03 584483 4000 910 1154 1936 -21.22 ± 5.15 3 578 1083 332 4 -42.78 ± 10.3
ncm-dbt-04 06:52:38 568553 4000 839 1168 1993 -28.64 ± 5.11 6 616 1081 295 2 -56.96 ± 10.3
ncm-dbt-05 06:53:09 581586 4000 854 1176 1970 -28.03 ± 5.18 6 624 1057 312 1 -55.54 ± 10.44
20000 4303 5849 9848 -26.91 ± 2.32 22 3096 5304 1562 16 -53.93 ± 4.66

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
434319 ncm-dbt-05 577110 500 112 160 228 -33.46 ± 14.61 1 82 131 36 0 -66.1 ± 29.72
434318 ncm-dbt-04 568673 500 103 142 255 -27.15 ± 14.95 1 79 128 42 0 -53.22 ± 30.14
434317 ncm-dbt-01 585084 500 104 150 246 -32.05 ± 15.15 3 78 132 36 1 -61.79 ± 29.59
434316 ncm-dbt-02 587197 500 120 146 234 -18.08 ± 14.54 0 71 134 45 0 -36.26 ± 29.38
434315 ncm-dbt-03 583405 500 122 149 229 -18.78 ± 14.21 0 69 139 42 0 -37.67 ± 28.72
434314 ncm-dbt-01 584748 500 104 128 268 -16.69 ± 13.5 0 62 150 38 0 -33.46 ± 27.23
434313 ncm-dbt-04 570629 500 92 142 266 -34.86 ± 15.08 2 82 132 32 2 -70.44 ± 29.57
434312 ncm-dbt-02 585000 500 116 148 236 -22.27 ± 14.6 0 74 135 40 1 -46.13 ± 29.23
434311 ncm-dbt-05 578547 500 100 129 271 -20.18 ± 14.83 0 74 132 43 1 -41.89 ± 29.63
434310 ncm-dbt-03 587325 500 100 137 263 -25.76 ± 13.94 1 70 144 35 0 -50.38 ± 27.99
434309 ncm-dbt-04 570188 500 112 143 245 -21.57 ± 14.29 1 69 140 40 0 -41.89 ± 28.57
434308 ncm-dbt-05 581527 500 118 149 233 -21.57 ± 14.68 0 75 131 44 0 -43.3 ± 29.76
434307 ncm-dbt-01 584117 500 97 144 259 -32.76 ± 15.07 0 86 127 35 2 -68.99 ± 30.25
434306 ncm-dbt-02 583992 500 107 151 242 -30.65 ± 15.8 1 89 113 47 0 -60.36 ± 32.05
434305 ncm-dbt-03 584622 500 105 133 262 -19.48 ± 15.76 1 77 123 47 2 -40.48 ± 30.78
434304 ncm-dbt-04 571994 500 100 147 253 -32.76 ± 13.9 0 79 139 32 0 -66.1 ± 28.61
434303 ncm-dbt-02 587452 500 101 157 242 -39.08 ± 14.17 0 87 132 31 0 -79.17 ± 29.53
434302 ncm-dbt-05 583405 500 103 151 246 -33.46 ± 14.74 0 86 126 38 0 -67.55 ± 30.39
434301 ncm-dbt-01 579455 500 104 139 257 -24.36 ± 15.26 0 81 124 44 1 -50.38 ± 30.66
434300 ncm-dbt-03 582736 500 107 139 254 -22.27 ± 15.23 0 79 125 45 1 -46.13 ± 30.53
434299 ncm-dbt-02 583070 500 121 156 223 -24.36 ± 14.88 0 78 130 41 1 -50.38 ± 29.88
434298 ncm-dbt-01 582819 500 121 153 226 -22.27 ± 15.35 1 77 126 45 1 -44.72 ± 30.4
434297 ncm-dbt-04 568395 500 110 145 245 -24.36 ± 13.84 2 65 149 34 0 -46.13 ± 27.31
434296 ncm-dbt-05 585379 500 96 141 263 -31.35 ± 14.98 1 83 126 40 0 -61.79 ± 30.39
434295 ncm-dbt-03 583237 500 116 155 229 -27.15 ± 14.7 0 80 129 41 0 -54.65 ± 30.01
434294 ncm-dbt-01 583908 500 102 154 244 -36.26 ± 14.66 0 88 126 36 0 -73.34 ± 30.38
434293 ncm-dbt-04 564801 500 107 158 235 -35.56 ± 14.87 0 89 123 38 0 -71.89 ± 30.78
434292 ncm-dbt-05 579537 500 114 147 239 -22.96 ± 13.87 0 70 143 37 0 -46.13 ± 28.15
434291 ncm-dbt-02 588004 500 101 144 255 -29.95 ± 14.76 1 80 130 39 0 -58.93 ± 29.87
434290 ncm-dbt-03 583824 500 119 149 232 -20.87 ± 14.11 0 70 140 40 0 -41.89 ± 28.57
434289 ncm-dbt-04 564997 500 104 139 257 -24.36 ± 14.88 0 79 127 44 0 -48.96 ± 30.27
434288 ncm-dbt-01 581777 500 98 141 261 -29.95 ± 13.7 0 75 143 32 0 -60.36 ± 28.08
434287 ncm-dbt-02 586097 500 101 148 251 -32.76 ± 14.95 0 86 126 37 1 -67.55 ± 30.39
434286 ncm-dbt-03 584495 500 117 140 243 -15.99 ± 14.25 0 66 142 41 1 -33.46 ± 28.33
434285 ncm-dbt-05 582652 500 104 145 251 -28.55 ± 15.05 2 78 129 41 0 -54.65 ± 30.01
433722 ncm-dbt-03 586223 500 124 152 224 -19.48 ± 14.26 1 67 141 41 0 -37.67 ± 28.45
433721 ncm-dbt-01 584369 500 106 140 254 -23.66 ± 14.83 0 78 128 44 0 -47.55 ± 30.15
433720 ncm-dbt-02 587325 500 97 152 251 -38.37 ± 14.91 1 88 127 33 1 -77.71 ± 30.23
433719 ncm-dbt-04 568752 500 111 152 237 -28.55 ± 13.74 0 74 143 33 0 -57.5 ± 28.1
433718 ncm-dbt-05 584537 500 107 154 239 -32.75 ± 14.3 2 76 139 33 0 -63.23 ± 28.63

Commit

Commit ID 93b14a17d168e87e7f05fc09e3ba93e737b0757e
Author bmc4
Date 2021-12-27 15:43:44 UTC
Don't direct prune a move if it's a retake STC: LLR: 2.94 (-2.94,2.94) <0.00,2.50> Total: 36304 W: 9499 L: 9226 D: 17579 Ptnml(0-2): 96, 4102, 9508, 4325, 121 https://tests.stockfishchess.org/tests/view/61c7069ae68b2a714b6dca27 LTC: LLR: 2.95 (-2.94,2.94) <0.50,3.00> Total: 93824 W: 24478 L: 24068 D: 45278 Ptnml(0-2): 70, 9644, 27082, 10038, 78 https://tests.stockfishchess.org/tests/view/61c725fee68b2a714b6dcfa2 closes https://github.com/official-stockfish/Stockfish/pull/3871 Bench: 4106806
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