Dev Builds » 20211019-2014

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 06:53:12 584224 4000 712 1346 1942 -55.54 ± 5.08 7 819 975 199 0 -112.72 ± 10.87
ncm-dbt-02 06:54:29 585854 4002 729 1354 1919 -54.71 ± 5.24 15 816 950 219 1 -109.58 ± 11.04
ncm-dbt-03 06:53:44 584970 4000 680 1347 1973 -58.48 ± 5.22 18 831 955 192 4 -117.75 ± 11.0
ncm-dbt-04 06:54:51 569027 3998 736 1343 1919 -53.16 ± 5.1 7 800 988 201 3 -108.17 ± 10.8
ncm-dbt-05 06:54:40 581526 4000 707 1319 1974 -53.58 ± 5.13 16 784 997 202 1 -106.97 ± 10.74
20000 3564 6709 9727 -55.09 ± 2.31 63 4050 4865 1013 9 -111.02 ± 4.87

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
435962 ncm-dbt-02 585590 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02
435961 ncm-dbt-05 585084 500 88 161 251 -51.09 ± 14.18 3 90 134 23 0 -99.95 ± 29.1
435960 ncm-dbt-04 567284 498 84 168 246 -59.17 ± 13.63 0 102 130 16 1 -123.56 ± 29.46
435959 ncm-dbt-03 585885 500 94 168 238 -51.8 ± 15.89 3 103 110 33 1 -102.97 ± 32.56
435958 ncm-dbt-01 582736 500 96 165 239 -48.25 ± 13.61 1 89 138 22 0 -96.94 ± 28.52
435957 ncm-dbt-02 584832 500 91 173 236 -57.5 ± 15.91 3 109 106 31 1 -115.23 ± 33.15
435956 ncm-dbt-05 577315 500 88 163 249 -52.51 ± 13.98 2 93 133 22 0 -104.49 ± 29.21
435955 ncm-dbt-03 583656 500 81 170 249 -62.51 ± 15.24 3 109 113 24 1 -126.18 ± 32.14
435954 ncm-dbt-01 584285 500 84 168 248 -58.93 ± 14.42 1 106 119 24 0 -119.89 ± 31.25
435953 ncm-dbt-04 570669 500 105 166 229 -42.6 ± 15.41 2 94 117 37 0 -83.57 ± 31.58
435952 ncm-dbt-02 585337 500 87 157 256 -48.96 ± 14.2 1 94 129 26 0 -98.44 ± 29.86
435951 ncm-dbt-05 585084 500 86 162 252 -53.22 ± 14.56 2 98 124 26 0 -106.01 ± 30.56
435950 ncm-dbt-03 586012 500 89 170 241 -56.78 ± 14.05 2 97 132 18 1 -115.23 ± 29.26
435949 ncm-dbt-01 584369 500 93 183 224 -63.23 ± 13.48 0 107 126 17 0 -130.94 ± 30.05
435948 ncm-dbt-04 571230 500 95 178 227 -58.21 ± 15.32 3 105 115 26 1 -116.78 ± 31.85
435947 ncm-dbt-02 585295 500 95 158 247 -44.01 ± 14.47 0 94 125 31 0 -89.48 ± 30.48
435946 ncm-dbt-05 578877 500 102 160 238 -40.48 ± 14.78 1 90 125 34 0 -80.63 ± 30.5
435945 ncm-dbt-03 585421 500 84 167 249 -58.21 ± 15.19 2 107 114 26 1 -118.33 ± 32.0
435944 ncm-dbt-04 565863 500 90 163 247 -51.09 ± 14.31 0 100 123 27 0 -104.49 ± 30.71
435943 ncm-dbt-01 584790 500 90 154 256 -44.72 ± 14.51 0 95 124 31 0 -90.97 ± 30.61
435942 ncm-dbt-02 584706 500 79 173 248 -66.1 ± 16.03 4 117 98 31 0 -130.94 ± 34.38
435941 ncm-dbt-05 584159 500 90 168 242 -54.64 ± 15.15 3 101 117 29 0 -107.54 ± 31.57
435940 ncm-dbt-04 568156 500 85 176 239 -63.95 ± 13.8 0 109 124 16 1 -134.15 ± 30.35
435939 ncm-dbt-01 582360 500 86 174 240 -61.79 ± 14.95 3 107 115 25 0 -123.02 ± 31.84
435938 ncm-dbt-03 582694 500 77 170 253 -65.38 ± 13.72 0 111 121 18 0 -135.76 ± 30.83
435937 ncm-dbt-02 587197 500 89 173 238 -58.93 ± 14.69 3 102 121 24 0 -116.78 ± 30.96
435936 ncm-dbt-05 580904 500 81 168 251 -61.07 ± 13.53 1 102 130 17 0 -124.6 ± 29.47
435935 ncm-dbt-03 585464 500 83 163 254 -56.07 ± 14.7 2 102 120 26 0 -112.14 ± 31.13
435934 ncm-dbt-01 583572 500 88 168 244 -56.07 ± 14.96 1 107 113 29 0 -113.68 ± 32.15
435933 ncm-dbt-04 569270 500 83 168 249 -59.64 ± 14.59 1 108 116 25 0 -121.46 ± 31.7
435932 ncm-dbt-02 585759 500 86 167 247 -56.78 ± 14.05 1 101 126 22 0 -115.23 ± 30.2
435931 ncm-dbt-03 585464 500 93 167 240 -51.8 ± 13.66 0 96 132 22 0 -106.01 ± 29.35
435930 ncm-dbt-05 578383 500 82 158 260 -53.22 ± 14.69 1 102 119 28 0 -107.54 ± 31.29
435929 ncm-dbt-01 585970 500 90 174 236 -58.93 ± 14.29 0 108 118 24 0 -121.46 ± 31.39
435928 ncm-dbt-02 586689 500 105 168 227 -44.01 ± 14.73 3 87 130 30 0 -85.04 ± 29.79
435927 ncm-dbt-04 568395 500 99 160 241 -42.6 ± 13.28 0 84 143 23 0 -86.52 ± 27.87
435926 ncm-dbt-03 585169 500 79 172 249 -65.38 ± 15.49 6 106 113 25 0 -126.18 ± 32.14
435925 ncm-dbt-04 571351 500 95 164 241 -48.25 ± 14.83 1 98 120 31 0 -96.94 ± 31.16
435924 ncm-dbt-02 587282 500 96 185 219 -62.51 ± 14.31 0 112 115 23 0 -129.35 ± 31.83
435923 ncm-dbt-01 585717 500 85 160 255 -52.51 ± 14.52 1 100 122 27 0 -106.01 ± 30.85
435922 ncm-dbt-05 582402 500 90 179 231 -62.51 ± 15.11 3 108 115 23 1 -126.18 ± 31.84

Commit

Commit ID 4af1ae82c6b017a3d0cac04ad1ad916a7e26a529
Author bmc4
Date 2021-10-19 20:14:39 UTC
Adjust TTdepth acceptance on early cutoff STC: LLR: 2.94 (-2.94,2.94) <-0.50,2.50> Total: 63784 W: 16185 L: 15917 D: 31682 Ptnml(0-2): 231, 7309, 16531, 7603, 218 https://tests.stockfishchess.org/tests/view/616ed03a942d40685e3237c0 LTC: LLR: 2.93 (-2.94,2.94) <0.50,3.50> Total: 12728 W: 3268 L: 3072 D: 6388 Ptnml(0-2): 8, 1298, 3563, 1480, 15 https://tests.stockfishchess.org/tests/view/616ef156942d40685e32380a closes https://github.com/official-stockfish/Stockfish/pull/3748 bench: 7050445
Copyright 2011–2025 Next Chess Move LLC