Dev Builds » 20250204-2024

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 06:50:49 584750 4014 1562 524 1928 +91.93 ± 4.97 4 94 786 1106 17 +195.85 ± 12.13
ncm-dbt-02 06:48:54 585947 4000 1565 562 1873 +89.02 ± 5.05 3 107 794 1076 20 +187.62 ± 12.08
ncm-dbt-03 06:47:50 586950 4000 1563 555 1882 +89.48 ± 4.89 3 94 804 1090 9 +191.31 ± 11.98
ncm-dbt-04 06:50:39 570751 4000 1530 536 1934 +88.18 ± 4.88 4 88 830 1066 12 +187.62 ± 11.77
ncm-dbt-05 06:50:27 582428 3986 1544 540 1902 +89.44 ± 4.94 0 107 786 1089 11 +190.04 ± 12.14
20000 7764 2717 9519 +89.61 ± 2.21 14 490 4000 5427 69 +190.48 ± 5.37

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
398931 ncm-dbt-01 584453 14 6 2 6 +102.04 ± 70.73 0 0 3 4 0 +225.59 ± 263.0
398930 ncm-dbt-05 582903 486 188 78 220 +80.02 ± 14.79 0 18 99 124 2 +165.99 ± 34.39
398929 ncm-dbt-04 572477 500 189 70 241 +84.3 ± 13.27 0 8 118 121 3 +174.55 ± 30.82
398928 ncm-dbt-02 586308 500 184 77 239 +75.52 ± 15.33 2 17 107 120 4 +155.54 ± 33.04
398927 ncm-dbt-03 587070 500 199 80 221 +84.31 ± 14.33 1 14 101 133 1 +179.9 ± 34.03
398926 ncm-dbt-01 585295 500 202 64 234 +98.44 ± 13.82 0 9 98 139 4 +207.95 ± 34.43
398925 ncm-dbt-05 580530 500 189 61 250 +90.97 ± 13.87 0 14 94 142 0 +196.45 ± 35.33
398924 ncm-dbt-04 570589 500 198 57 245 +100.71 ± 14.01 2 7 90 150 1 +223.94 ± 36.07
398923 ncm-dbt-02 587155 500 199 85 216 +80.63 ± 14.52 1 16 102 130 1 +171.02 ± 33.87
398922 ncm-dbt-03 587197 500 192 64 244 +90.96 ± 13.72 0 10 105 132 3 +190.85 ± 33.16
398921 ncm-dbt-01 585337 500 189 64 247 +88.74 ± 14.13 0 15 96 138 1 +189.0 ± 34.95
398920 ncm-dbt-05 584076 500 185 70 245 +81.36 ± 14.25 0 17 102 130 1 +171.02 ± 33.87
398919 ncm-dbt-04 571190 500 182 61 257 +85.78 ± 14.07 0 14 103 131 2 +179.9 ± 33.65
398918 ncm-dbt-02 585169 500 194 71 235 +87.26 ± 14.1 0 13 104 130 3 +181.7 ± 33.45
398917 ncm-dbt-03 586477 500 196 57 247 +99.2 ± 13.67 0 9 96 142 3 +211.87 ± 34.83
398916 ncm-dbt-01 586097 500 200 66 234 +95.44 ± 13.63 1 7 101 139 2 +206.01 ± 33.8
398915 ncm-dbt-05 586012 500 196 71 233 +88.74 ± 13.98 0 14 98 137 1 +189.0 ± 34.56
398914 ncm-dbt-04 568315 500 188 62 250 +89.48 ± 13.53 0 11 103 135 1 +190.85 ± 33.57
398913 ncm-dbt-02 582235 500 190 55 255 +96.19 ± 14.26 0 14 89 145 2 +206.01 ± 36.33
398912 ncm-dbt-03 588174 500 191 67 242 +88.0 ± 13.66 0 13 100 137 0 +189.0 ± 34.18
398911 ncm-dbt-01 581943 500 204 64 232 +99.95 ± 13.84 0 11 90 147 2 +215.85 ± 36.11
398910 ncm-dbt-05 582485 500 196 70 234 +89.48 ± 13.22 0 10 104 136 0 +192.71 ± 33.34
398909 ncm-dbt-04 571833 500 193 69 238 +88.0 ± 13.81 0 11 107 129 3 +183.51 ± 32.85
398908 ncm-dbt-03 587155 500 191 83 226 +76.25 ± 13.36 0 13 116 121 0 +160.64 ± 31.43
398907 ncm-dbt-01 584958 500 182 59 259 +87.26 ± 13.64 1 9 107 132 1 +187.16 ± 32.81
398906 ncm-dbt-02 588984 500 204 67 229 +97.69 ± 13.5 0 9 97 142 2 +209.91 ± 34.63
398905 ncm-dbt-05 582778 500 198 58 244 +99.95 ± 14.15 0 13 86 149 2 +215.85 ± 36.98
398904 ncm-dbt-04 567680 500 192 74 234 +83.57 ± 14.01 1 12 106 130 1 +178.11 ± 33.1
398903 ncm-dbt-03 585084 500 198 72 230 +89.48 ± 13.38 0 10 105 134 1 +190.85 ± 33.16
398902 ncm-dbt-01 585801 500 191 65 244 +89.48 ± 14.59 1 12 101 132 4 +187.16 ± 33.99
398901 ncm-dbt-02 588260 500 195 70 235 +88.74 ± 15.28 0 21 86 140 3 +185.33 ± 36.78
398900 ncm-dbt-03 585717 500 193 58 249 +96.19 ± 14.26 1 12 89 147 1 +209.91 ± 36.34
398899 ncm-dbt-05 579909 500 192 61 247 +93.2 ± 13.75 0 11 99 138 2 +198.34 ± 34.31
398898 ncm-dbt-04 569350 500 204 73 223 +93.2 ± 14.21 1 12 93 143 1 +202.15 ± 35.52
398897 ncm-dbt-01 584916 500 198 70 232 +90.96 ± 13.87 0 13 97 139 1 +194.57 ± 34.74
398896 ncm-dbt-02 582527 500 195 61 244 +95.44 ± 13.63 0 10 98 140 2 +204.07 ± 34.47
398895 ncm-dbt-03 588728 500 203 74 223 +91.71 ± 14.19 1 13 92 144 0 +200.24 ± 35.72
398894 ncm-dbt-05 580738 500 200 71 229 +91.71 ± 13.73 0 10 104 133 3 +192.71 ± 33.34
398893 ncm-dbt-01 583950 500 190 70 240 +85.04 ± 15.06 1 18 93 136 2 +179.9 ± 35.49
398892 ncm-dbt-04 574581 500 184 70 246 +80.63 ± 13.49 0 13 110 127 0 +171.02 ± 32.42
398891 ncm-dbt-02 586943 500 204 76 220 +90.96 ± 13.24 0 7 111 129 3 +190.85 ± 31.92

Commit

Commit ID 9ed1725e7842df98aee612201ed11f3bda724926
Author Nonlinear2
Date 2025-02-04 20:24:06 UTC
Simplify bonusScale formula Passed STC: https://tests.stockfishchess.org/tests/view/679ea7bc0774dfd78deb0d68 LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 47680 W: 12575 L: 12364 D: 22741 Ptnml(0-2): 179, 5589, 12139, 5708, 225 Passed LTC: https://tests.stockfishchess.org/tests/view/679eb7760774dfd78deb0dbb LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 314220 W: 80110 L: 80189 D: 153921 Ptnml(0-2): 265, 35121, 86420, 35036, 268 closes https://github.com/official-stockfish/Stockfish/pull/5849 Bench: 3161782
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