Dev Builds » 20230903-0640

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 06:54:45 581965 4020 1404 673 1943 +63.89 ± 5.03 2 166 949 885 8 +131.22 ± 11.02
ncm-dbt-02 06:55:00 585753 3994 1383 715 1896 +58.66 ± 4.99 0 176 984 830 7 +119.5 ± 10.8
ncm-dbt-03 06:53:24 584380 4010 1422 668 1920 +66.11 ± 4.97 0 150 964 878 13 +134.78 ± 10.9
ncm-dbt-04 06:52:50 568380 4000 1378 671 1951 +62.06 ± 5.13 2 182 932 875 9 +126.97 ± 11.14
ncm-dbt-05 06:55:16 579168 3976 1366 685 1925 +60.1 ± 5.05 1 168 982 823 14 +121.46 ± 10.8
20000 6953 3412 9635 +62.17 ± 2.25 5 842 4811 4291 51 +126.77 ± 4.89

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
423263 ncm-dbt-03 585253 10 5 1 4 +147.05 ± 74.68 0 0 1 4 0 +381.35 ± 516.06
423262 ncm-dbt-01 578794 20 6 4 10 +34.85 ± 66.12 0 1 6 3 0 +70.44 ± 143.13
423261 ncm-dbt-05 583405 476 166 80 230 +63.47 ± 14.72 0 20 114 102 2 +128.13 ± 31.87
423260 ncm-dbt-02 584537 494 164 89 241 +53.16 ± 13.99 0 23 126 98 0 +108.93 ± 30.2
423259 ncm-dbt-03 582987 500 183 84 233 +69.71 ± 14.73 0 22 109 117 2 +142.26 ± 32.74
423258 ncm-dbt-04 566493 500 171 82 247 +62.51 ± 13.15 0 13 137 98 2 +126.18 ± 28.27
423257 ncm-dbt-01 582027 500 180 84 236 +67.54 ± 14.23 0 20 115 114 1 +138.99 ± 31.79
423256 ncm-dbt-05 577848 500 184 83 233 +71.16 ± 14.08 0 17 117 114 2 +145.54 ± 31.41
423255 ncm-dbt-02 588217 500 175 83 242 +64.66 ± 13.54 0 17 124 109 0 +134.15 ± 30.35
423254 ncm-dbt-03 585253 500 179 88 233 +63.95 ± 13.8 0 19 121 110 0 +132.54 ± 30.86
423253 ncm-dbt-04 570549 500 181 90 229 +63.94 ± 14.78 0 23 116 108 3 +127.76 ± 31.68
423252 ncm-dbt-01 584411 500 166 88 246 +54.64 ± 14.63 0 26 122 100 2 +109.07 ± 30.84
423251 ncm-dbt-05 579372 500 176 94 230 +57.5 ± 14.49 0 24 122 102 2 +115.23 ± 30.81
423250 ncm-dbt-02 587452 500 181 77 242 +73.33 ± 14.44 0 20 107 122 1 +152.18 ± 33.05
423249 ncm-dbt-03 584748 500 176 84 240 +64.66 ± 13.97 0 19 121 109 1 +132.54 ± 30.86
423248 ncm-dbt-04 568593 500 174 81 245 +65.38 ± 14.42 0 23 111 116 0 +135.76 ± 32.43
423247 ncm-dbt-01 584579 500 177 96 227 +56.78 ± 14.19 0 22 127 99 2 +113.68 ± 30.06
423246 ncm-dbt-05 573851 500 171 87 242 +58.93 ± 14.56 0 24 120 104 2 +118.33 ± 31.1
423245 ncm-dbt-02 582987 500 167 90 243 +53.93 ± 14.86 0 27 122 98 3 +106.01 ± 30.85
423244 ncm-dbt-03 583321 500 183 89 228 +66.1 ± 13.15 0 14 128 108 0 +137.37 ± 29.63
423243 ncm-dbt-04 569111 500 163 72 265 +63.95 ± 14.5 1 20 117 111 1 +132.54 ± 31.5
423242 ncm-dbt-01 581818 500 166 83 251 +58.21 ± 15.06 0 29 110 110 1 +118.33 ± 32.59
423241 ncm-dbt-05 580116 500 172 85 243 +61.07 ± 14.1 0 19 128 100 3 +121.46 ± 29.83
423240 ncm-dbt-02 585674 500 174 98 228 +53.22 ± 14.29 0 25 125 99 1 +107.54 ± 30.4
423239 ncm-dbt-03 582778 500 167 83 250 +58.93 ± 14.42 0 21 128 97 4 +115.23 ± 29.89
423238 ncm-dbt-04 569390 500 170 90 240 +56.07 ± 14.7 0 28 114 108 0 +115.23 ± 32.0
423237 ncm-dbt-01 581527 500 187 71 242 +82.1 ± 13.68 0 13 109 127 1 +172.78 ± 32.58
423236 ncm-dbt-05 577356 500 161 99 240 +43.3 ± 14.02 0 28 132 90 0 +88.0 ± 29.49
423235 ncm-dbt-02 584453 500 179 91 230 +61.79 ± 13.56 0 17 129 103 1 +126.18 ± 29.62
423234 ncm-dbt-03 584537 500 183 80 237 +72.61 ± 14.27 0 18 113 117 2 +148.85 ± 32.06
423233 ncm-dbt-04 569390 500 175 75 250 +70.43 ± 14.75 0 22 108 118 2 +143.89 ± 32.9
423232 ncm-dbt-01 576864 500 167 87 246 +56.07 ± 14.43 2 19 127 101 1 +116.78 ± 30.03
423231 ncm-dbt-05 582485 500 171 77 252 +66.1 ± 14.31 1 17 121 109 2 +135.76 ± 30.83
423230 ncm-dbt-03 585717 500 177 84 239 +65.38 ± 14.0 0 18 123 107 2 +132.54 ± 30.53
423229 ncm-dbt-04 564487 500 164 97 239 +46.84 ± 15.14 1 32 116 101 0 +96.94 ± 31.72
423228 ncm-dbt-02 587452 500 171 108 221 +44.01 ± 14.6 0 31 126 92 1 +88.0 ± 30.34
423227 ncm-dbt-01 579537 500 184 76 240 +76.25 ± 13.96 0 17 108 125 0 +160.64 ± 32.85
423226 ncm-dbt-03 584832 500 169 75 256 +66.1 ± 14.17 0 19 120 109 2 +134.15 ± 31.01
423225 ncm-dbt-04 569031 500 180 84 236 +67.54 ± 14.37 0 21 113 115 1 +138.99 ± 32.11
423224 ncm-dbt-02 585253 500 172 79 249 +65.38 ± 13.42 0 16 125 109 0 +135.76 ± 30.17
423223 ncm-dbt-05 578918 500 165 80 255 +59.64 ± 13.76 0 19 128 102 1 +121.46 ± 29.83
423222 ncm-dbt-01 588132 500 171 84 245 +61.07 ± 13.68 0 19 125 106 0 +126.18 ± 30.27

Commit

Commit ID 4f7fe255c7ac9cf705350cabfc231d87a3e75018
Author Disservin
Date 2023-09-03 06:40:08 UTC
Simplify README The UCI protocol is rather technical and has little value in our README. Instead it should be explained in our wiki. "Contributing" is moved above "Compiling Stockfish" to make it more prominent. Also move the CONTRIBUTING.md into the root directory and include it in the distributed artifacts/releases. closes https://github.com/official-stockfish/Stockfish/pull/4766 No functional change
Copyright 2011–2025 Next Chess Move LLC