Dev Builds » 20211024-2013

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 06:54:12 577123 4022 736 1301 1985 -49.13 ± 5.02 8 758 1038 205 2 -99.19 ± 10.5
ncm-dbt-02 06:54:18 586524 4014 734 1326 1954 -51.62 ± 5.15 12 788 988 218 1 -103.54 ± 10.81
ncm-dbt-03 06:54:36 584520 3998 747 1296 1955 -48.01 ± 5.1 7 756 1019 213 4 -97.37 ± 10.61
ncm-dbt-04 06:52:55 569426 4000 735 1311 1954 -50.38 ± 5.19 10 784 980 224 2 -101.46 ± 10.86
ncm-dbt-05 06:55:03 581833 3966 717 1277 1972 -49.39 ± 5.2 5 780 973 220 5 -100.86 ± 10.9
20000 3669 6511 9820 -49.71 ± 2.3 42 3866 4998 1080 14 -100.48 ± 4.8

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
417720 ncm-dbt-02 586012 14 4 2 8 +49.93 ± 60.15 0 0 5 2 0 +102.04 ± 134.61
417719 ncm-dbt-01 577315 22 8 7 7 +15.8 ± 69.69 0 2 6 3 0 +31.67 ± 146.65
417718 ncm-dbt-05 575761 466 84 150 232 -49.54 ± 15.74 1 93 112 25 2 -102.81 ± 32.25
417717 ncm-dbt-03 586477 498 96 153 249 -39.94 ± 14.54 2 84 132 31 0 -78.03 ± 29.52
417716 ncm-dbt-04 567640 500 95 159 246 -44.72 ± 14.9 0 97 121 31 1 -92.46 ± 31.03
417715 ncm-dbt-02 586350 500 89 166 245 -53.93 ± 14.59 2 99 123 26 0 -107.54 ± 30.7
417714 ncm-dbt-01 579166 500 84 169 247 -59.64 ± 15.25 4 104 115 27 0 -116.78 ± 31.85
417713 ncm-dbt-05 582569 500 79 157 264 -54.65 ± 14.89 1 104 118 26 1 -112.14 ± 31.42
417712 ncm-dbt-03 583070 500 90 174 236 -58.93 ± 14.01 1 103 125 21 0 -119.89 ± 30.32
417711 ncm-dbt-04 569589 500 93 167 240 -51.8 ± 13.66 0 96 132 22 0 -106.01 ± 29.35
417710 ncm-dbt-02 586731 500 85 157 258 -50.38 ± 14.41 0 100 122 28 0 -102.97 ± 30.86
417709 ncm-dbt-01 576823 500 91 170 239 -55.36 ± 13.55 2 93 137 18 0 -110.6 ± 28.52
417708 ncm-dbt-05 577643 500 94 149 257 -38.37 ± 15.66 2 92 115 41 0 -74.79 ± 31.83
417707 ncm-dbt-03 583740 500 95 159 246 -44.72 ± 14.9 2 90 130 26 2 -90.97 ± 29.76
417706 ncm-dbt-04 568395 500 95 156 249 -42.6 ± 14.38 3 83 136 28 0 -82.1 ± 28.94
417705 ncm-dbt-01 577233 500 92 160 248 -47.55 ± 14.4 1 93 130 25 1 -96.94 ± 29.72
417704 ncm-dbt-02 586943 500 89 169 242 -56.07 ± 15.09 3 102 117 28 0 -110.6 ± 31.57
417703 ncm-dbt-05 586520 500 96 156 248 -41.89 ± 13.8 0 87 136 27 0 -85.04 ± 28.92
417702 ncm-dbt-03 583656 500 93 167 240 -51.8 ± 14.35 1 98 125 26 0 -104.49 ± 30.42
417701 ncm-dbt-02 586393 500 90 166 244 -53.22 ± 14.42 1 100 123 26 0 -107.54 ± 30.7
417700 ncm-dbt-01 578342 500 98 162 240 -44.72 ± 14.37 0 93 129 27 1 -92.46 ± 29.89
417699 ncm-dbt-04 570749 500 78 164 258 -60.36 ± 13.93 1 104 125 20 0 -123.02 ± 30.3
417698 ncm-dbt-05 581985 500 107 167 226 -41.9 ± 14.21 0 89 133 27 1 -86.52 ± 29.35
417697 ncm-dbt-03 583363 500 93 154 253 -42.6 ± 14.52 0 93 125 32 0 -86.52 ± 30.48
417696 ncm-dbt-01 574216 500 96 155 249 -41.19 ± 14.3 1 87 132 30 0 -82.1 ± 29.52
417695 ncm-dbt-02 585632 500 93 162 245 -48.25 ± 14.7 1 96 125 27 1 -98.44 ± 30.45
417694 ncm-dbt-04 569749 500 102 166 232 -44.72 ± 15.15 3 91 123 33 0 -86.52 ± 30.76
417693 ncm-dbt-05 581153 500 80 158 262 -54.65 ± 14.22 0 103 122 25 0 -112.14 ± 30.83
417692 ncm-dbt-03 584790 500 87 158 255 -49.67 ± 14.38 1 95 129 24 1 -101.46 ± 29.84
417691 ncm-dbt-02 586689 500 100 167 233 -46.84 ± 14.88 2 94 123 31 0 -92.46 ± 30.75
417690 ncm-dbt-04 570188 500 81 175 244 -66.1 ± 15.52 1 121 100 27 1 -137.37 ± 34.12
417689 ncm-dbt-01 576864 500 97 153 250 -39.08 ± 14.04 0 86 134 30 0 -79.17 ± 29.25
417688 ncm-dbt-05 584622 500 83 166 251 -58.21 ± 15.19 1 111 108 30 0 -118.33 ± 32.88
417687 ncm-dbt-03 583698 500 104 166 230 -43.31 ± 14.56 0 93 127 29 1 -89.48 ± 30.19
417686 ncm-dbt-02 586393 500 92 173 235 -56.78 ± 14.73 3 100 122 25 0 -112.14 ± 30.83
417685 ncm-dbt-04 568395 500 102 157 241 -38.37 ± 14.79 1 88 126 35 0 -76.25 ± 30.37
417684 ncm-dbt-01 575313 500 92 157 251 -45.42 ± 14.28 0 94 127 29 0 -92.46 ± 30.18
417683 ncm-dbt-03 587367 500 89 165 246 -53.22 ± 14.01 0 100 126 24 0 -109.07 ± 30.24
417682 ncm-dbt-01 578836 500 78 168 254 -63.23 ± 13.33 0 106 128 16 0 -130.94 ± 29.72
417681 ncm-dbt-02 587579 500 92 164 244 -50.38 ± 14.0 0 97 128 25 0 -102.97 ± 29.98
417680 ncm-dbt-05 584411 500 94 174 232 -56.07 ± 13.87 0 101 129 19 1 -116.78 ± 29.72
417679 ncm-dbt-04 570709 500 89 167 244 -54.64 ± 14.76 1 104 117 28 0 -110.6 ± 31.57

Commit

Commit ID 8557f35aa5c0f1ea45b2ccba5ebfd0165dbd33da
Author Stefan Geschwentner
Date 2021-10-24 20:13:47 UTC
Double extend search even more via LMR Allow now for the first five moves a two plies deeper LMR search. STC: LLR: 2.96 (-2.94,2.94) <-2.50,0.50> Total: 99608 W: 25143 L: 25115 D: 49350 Ptnml(0-2): 291, 11444, 26328, 11428, 313 https://tests.stockfishchess.org/tests/view/61718c9438cb9784038af8d7 LTC: LLR: 2.95 (-2.94,2.94) <-2.50,0.50> Total: 52064 W: 13234 L: 13145 D: 25685 Ptnml(0-2): 35, 5431, 15014, 5514, 38 https://tests.stockfishchess.org/tests/view/6171e13e38cb9784038af928 closes https://github.com/official-stockfish/Stockfish/pull/3760 Bench: 7222293
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