Dev Builds » 20211219-1444

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 06:51:08 576630 4000 891 1203 1906 -27.16 ± 5.19 6 616 1068 304 6 -54.65 ± 10.38
ncm-dbt-02 06:49:37 586059 4000 875 1192 1933 -27.59 ± 5.24 6 631 1040 320 3 -55.0 ± 10.54
ncm-dbt-03 06:50:54 584233 4018 958 1179 1881 -19.13 ± 5.18 2 578 1071 355 3 -38.55 ± 10.37
ncm-dbt-04 06:50:55 569377 4000 872 1178 1950 -26.63 ± 5.19 3 622 1058 312 5 -53.93 ± 10.43
ncm-dbt-05 06:50:03 580609 3982 871 1167 1944 -25.87 ± 5.27 4 621 1039 321 6 -52.4 ± 10.54
20000 4467 5919 9614 -25.27 ± 2.33 21 3068 5276 1612 23 -50.88 ± 4.67

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
417334 ncm-dbt-03 581444 18 7 6 5 +19.32 ± 85.67 0 2 4 3 0 +38.76 ± 185.98
417333 ncm-dbt-05 580987 482 107 150 225 -31.08 ± 15.83 0 86 113 41 1 -64.15 ± 32.12
417332 ncm-dbt-01 575069 500 107 145 248 -26.46 ± 14.26 0 76 136 38 0 -53.22 ± 29.08
417331 ncm-dbt-04 571029 500 114 137 249 -15.99 ± 15.51 0 77 119 54 0 -32.05 ± 31.27
417330 ncm-dbt-02 584622 500 117 148 235 -21.57 ± 14.68 1 71 137 40 1 -43.3 ± 28.97
417329 ncm-dbt-03 586985 500 112 157 231 -31.35 ± 13.94 1 75 142 32 0 -61.79 ± 28.21
417328 ncm-dbt-05 581735 500 105 139 256 -23.66 ± 14.96 1 75 132 41 1 -47.55 ± 29.63
417327 ncm-dbt-01 578836 500 99 155 246 -39.08 ± 14.57 1 87 129 33 0 -77.71 ± 29.96
417326 ncm-dbt-04 570348 500 111 151 238 -27.85 ± 14.49 1 76 135 38 0 -54.65 ± 29.21
417325 ncm-dbt-02 585928 500 107 154 239 -32.76 ± 14.43 0 83 131 36 0 -66.1 ± 29.72
417324 ncm-dbt-03 584748 500 124 143 233 -13.21 ± 14.8 1 66 134 49 0 -25.06 ± 29.4
417323 ncm-dbt-05 577233 500 105 142 253 -25.76 ± 14.98 0 79 131 38 2 -54.65 ± 29.74
417322 ncm-dbt-01 579207 500 114 159 227 -31.35 ± 13.66 1 73 146 30 0 -61.79 ± 27.64
417321 ncm-dbt-04 571391 500 111 152 237 -28.56 ± 14.28 0 77 138 34 1 -58.93 ± 28.79
417320 ncm-dbt-02 584622 500 101 155 244 -37.67 ± 14.87 1 87 128 33 1 -76.25 ± 30.1
417319 ncm-dbt-03 583279 500 120 148 232 -19.48 ± 14.9 0 74 131 44 1 -40.48 ± 29.77
417318 ncm-dbt-05 582068 500 113 154 233 -28.55 ± 14.54 0 80 131 39 0 -57.5 ± 29.74
417317 ncm-dbt-04 567720 500 106 152 242 -32.05 ± 14.77 1 81 132 35 1 -64.66 ± 29.59
417316 ncm-dbt-01 575109 500 116 150 234 -23.66 ± 15.08 1 76 130 42 1 -47.55 ± 29.89
417315 ncm-dbt-02 584076 500 100 143 257 -29.95 ± 14.89 1 81 128 40 0 -58.93 ± 30.13
417314 ncm-dbt-03 584579 500 116 142 242 -18.08 ± 15.54 0 79 118 53 0 -36.26 ± 31.4
417313 ncm-dbt-05 581818 500 106 134 260 -19.48 ± 15.03 2 70 132 46 0 -36.26 ± 29.64
417312 ncm-dbt-04 568315 500 108 142 250 -23.66 ± 14.96 0 79 126 45 0 -47.55 ± 30.4
417311 ncm-dbt-01 573244 500 114 139 247 -17.39 ± 15.37 0 75 127 46 2 -37.67 ± 30.28
417310 ncm-dbt-02 586308 500 114 154 232 -27.85 ± 13.96 1 72 143 34 0 -54.65 ± 28.11
417309 ncm-dbt-03 585464 500 108 139 253 -21.57 ± 14.16 0 71 139 40 0 -43.3 ± 28.7
417308 ncm-dbt-05 573973 500 113 153 234 -27.86 ± 15.49 0 86 119 44 1 -57.5 ± 31.3
417307 ncm-dbt-04 568713 500 104 156 240 -36.26 ± 15.04 1 87 126 35 1 -73.34 ± 30.38
417306 ncm-dbt-01 577315 500 113 154 233 -28.55 ± 14.54 0 80 131 39 0 -57.5 ± 29.74
417305 ncm-dbt-02 587452 500 117 146 237 -20.17 ± 15.2 0 78 123 49 0 -40.48 ± 30.78
417304 ncm-dbt-03 584537 500 115 156 229 -28.55 ± 14.41 0 79 133 38 0 -57.5 ± 29.47
417303 ncm-dbt-05 583866 500 106 149 245 -29.95 ± 14.89 1 80 131 37 1 -60.36 ± 29.73
417302 ncm-dbt-01 577561 500 112 154 234 -29.25 ± 14.59 2 74 139 34 1 -57.5 ± 28.65
417301 ncm-dbt-04 568951 500 104 139 257 -24.36 ± 13.97 0 72 141 37 0 -48.96 ± 28.41
417300 ncm-dbt-02 586181 500 105 155 240 -34.86 ± 15.57 2 88 118 42 0 -67.55 ± 31.43
417299 ncm-dbt-03 582903 500 134 148 218 -9.73 ± 14.64 0 65 134 51 0 -19.48 ± 29.4
417298 ncm-dbt-05 583196 500 116 146 238 -20.87 ± 13.43 0 65 150 35 0 -41.89 ± 27.19
417297 ncm-dbt-04 568554 500 114 149 237 -24.36 ± 14.37 0 73 141 34 2 -51.8 ± 28.4
417296 ncm-dbt-02 589283 500 114 137 249 -15.99 ± 14.89 0 71 132 46 1 -33.46 ± 29.64
417295 ncm-dbt-03 584159 500 122 140 238 -12.51 ± 14.87 0 67 136 45 2 -27.85 ± 29.13
417294 ncm-dbt-01 576701 500 116 147 237 -21.57 ± 15.31 1 75 130 42 2 -44.72 ± 29.89

Commit

Commit ID 74776dbcd57a1bdf2d5328e5750cc1d00244e17d
Author Stéphane Nicolet
Date 2021-12-19 14:44:01 UTC
Simplification in evaluate_nnue.cpp Removes the test on non-pawn-material before applying the positional/materialistic bonus. Passed STC: LLR: 2.94 (-2.94,2.94) <-2.25,0.25> Total: 46904 W: 12197 L: 12059 D: 22648 Ptnml(0-2): 170, 5243, 12479, 5399, 161 https://tests.stockfishchess.org/tests/view/61be57cf57a0d0f327c3999d Passed LTC: LLR: 2.95 (-2.94,2.94) <-2.25,0.25> Total: 18760 W: 4958 L: 4790 D: 9012 Ptnml(0-2): 14, 1942, 5301, 2108, 15 https://tests.stockfishchess.org/tests/view/61bed1fb57a0d0f327c3afa9 closes https://github.com/official-stockfish/Stockfish/pull/3866 Bench: 4826206
Copyright 2011–2025 Next Chess Move LLC