Dev Builds » 20210713-1531

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 06:52:49 585102 4000 493 1539 1968 -93.01 ± 5.01 31 1079 795 95 0 -194.34 ± 12.05
ncm-dbt-02 06:53:47 585249 4000 500 1543 1957 -92.73 ± 4.99 29 1079 798 94 0 -194.11 ± 12.03
ncm-dbt-03 06:54:11 585966 4004 481 1539 1984 -94.04 ± 5.13 28 1117 743 113 1 -197.86 ± 12.5
ncm-dbt-04 06:54:36 570447 4000 499 1562 1939 -94.6 ± 5.02 34 1087 787 92 0 -197.63 ± 12.12
ncm-dbt-05 06:54:26 584135 3996 492 1547 1957 -93.95 ± 5.07 28 1104 762 103 1 -197.64 ± 12.33
20000 2465 7730 9805 -93.67 ± 2.25 150 5466 3885 497 2 -196.31 ± 5.46

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
406649 ncm-dbt-03 587409 4 1 2 1 -88.51 ± 137.63 0 1 1 0 0 -190.5 ± 634.21
406648 ncm-dbt-05 583405 496 66 184 246 -84.27 ± 13.96 1 130 103 14 0 -178.01 ± 33.64
406647 ncm-dbt-01 584411 500 73 185 242 -79.17 ± 14.05 1 126 107 16 0 -165.8 ± 33.0
406646 ncm-dbt-04 571230 500 65 190 245 -88.74 ± 14.28 4 130 103 13 0 -183.51 ± 33.63
406645 ncm-dbt-02 580987 500 64 190 246 -89.48 ± 14.59 3 136 95 16 0 -187.16 ± 35.14
406644 ncm-dbt-03 586181 500 68 197 235 -91.71 ± 15.06 6 132 98 13 1 -189.0 ± 34.56
406643 ncm-dbt-05 583196 500 66 193 241 -90.22 ± 14.6 4 134 97 15 0 -187.16 ± 34.76
406642 ncm-dbt-01 584327 500 57 198 245 -100.7 ± 14.47 4 146 87 13 0 -213.85 ± 36.76
406641 ncm-dbt-04 569989 500 59 190 251 -93.2 ± 14.95 5 137 92 16 0 -192.71 ± 35.72
406640 ncm-dbt-02 584411 500 55 194 251 -99.2 ± 13.35 2 143 97 8 0 -213.85 ± 34.58
406639 ncm-dbt-03 585632 500 59 187 254 -90.96 ± 14.32 3 136 97 14 0 -190.85 ± 34.75
406638 ncm-dbt-05 582235 500 64 192 244 -90.96 ± 15.47 6 135 90 19 0 -185.33 ± 36.06
406637 ncm-dbt-04 570629 500 56 193 251 -97.69 ± 14.28 5 138 96 11 0 -204.07 ± 34.89
406636 ncm-dbt-01 583196 500 59 193 248 -95.44 ± 14.4 7 130 103 10 0 -194.57 ± 33.53
406635 ncm-dbt-03 584790 500 57 192 251 -96.19 ± 14.85 3 146 84 17 0 -204.07 ± 37.33
406634 ncm-dbt-02 587452 500 61 180 259 -84.3 ± 13.88 2 128 107 13 0 -176.33 ± 32.93
406633 ncm-dbt-04 568434 500 61 191 248 -92.45 ± 13.11 1 136 105 8 0 -198.34 ± 33.06
406632 ncm-dbt-05 584327 500 59 193 248 -95.44 ± 14.4 4 139 94 13 0 -200.24 ± 35.32
406631 ncm-dbt-03 585169 500 66 201 233 -96.19 ± 14.56 7 132 100 11 0 -196.45 ± 34.12
406630 ncm-dbt-01 585843 500 58 189 253 -93.2 ± 13.6 2 137 101 10 0 -198.34 ± 33.9
406629 ncm-dbt-02 584958 500 59 197 244 -98.44 ± 14.44 6 137 96 11 0 -204.07 ± 34.89
406628 ncm-dbt-05 586266 500 55 185 260 -92.46 ± 14.65 4 136 97 12 1 -194.57 ± 34.74
406627 ncm-dbt-04 570388 500 67 199 234 -93.95 ± 14.53 6 132 100 12 0 -192.71 ± 34.15
406626 ncm-dbt-03 586901 500 63 192 245 -91.71 ± 14.63 2 142 89 17 0 -194.57 ± 36.29
406625 ncm-dbt-01 584874 500 52 190 258 -98.44 ± 14.44 6 137 96 11 0 -204.07 ± 34.89
406624 ncm-dbt-02 587452 500 64 191 245 -90.22 ± 14.46 5 130 102 13 0 -185.33 ± 33.81
406623 ncm-dbt-05 583866 500 67 196 237 -91.71 ± 14.04 3 135 100 12 0 -192.71 ± 34.15
406622 ncm-dbt-04 569230 500 63 194 243 -93.2 ± 14.36 5 133 100 12 0 -192.71 ± 34.15
406621 ncm-dbt-01 587070 500 69 195 236 -89.48 ± 14.44 5 129 103 13 0 -183.51 ± 33.63
406620 ncm-dbt-03 585084 500 61 187 252 -89.48 ± 14.88 3 138 91 18 0 -187.16 ± 35.88
406619 ncm-dbt-02 586901 500 61 198 241 -97.69 ± 13.66 4 137 101 8 0 -206.01 ± 33.8
406618 ncm-dbt-05 585421 500 61 202 237 -100.7 ± 13.2 1 147 94 8 0 -219.87 ± 35.19
406617 ncm-dbt-01 585000 500 65 190 245 -88.74 ± 14.57 3 135 96 16 0 -185.33 ± 34.95
406616 ncm-dbt-04 569909 500 62 196 242 -95.44 ± 13.47 2 139 100 9 0 -204.07 ± 34.04
406615 ncm-dbt-02 584790 500 66 198 236 -93.95 ± 14.53 5 135 97 13 0 -194.57 ± 34.74
406614 ncm-dbt-03 585295 500 55 188 257 -94.69 ± 13.93 1 144 92 13 0 -204.07 ± 35.72
406613 ncm-dbt-05 584369 500 54 202 244 -106.01 ± 14.2 5 148 87 10 0 -226.0 ± 36.75
406612 ncm-dbt-01 586097 500 60 199 241 -99.2 ± 13.19 3 139 102 6 0 -211.87 ± 33.48
406611 ncm-dbt-02 585042 500 70 195 235 -88.74 ± 13.83 2 133 103 12 0 -187.16 ± 33.6
406610 ncm-dbt-03 587240 500 51 193 256 -101.46 ± 13.85 3 146 91 10 0 -217.85 ± 35.89
406609 ncm-dbt-04 573770 500 66 209 225 -102.22 ± 14.48 6 142 91 11 0 -213.85 ± 35.9

Commit

Commit ID f4986f45967c613d92657f46b5a50f12dae15398
Author pb00067
Date 2021-07-13 15:31:15 UTC
SEE: simplify stm variable initialization Pull #3458 removed the only usage of pos.see_ge() moving pieces that don't belong to the side to move, so we can simplify this, adding an assert. closes https://github.com/official-stockfish/Stockfish/pull/3607 No functional change
Copyright 2011–2025 Next Chess Move LLC