Dev Builds » 20201014-1732

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 06:41:54 582732 4000 255 1840 1905 -145.64 ± 4.74 86 1438 451 25 0 -337.64 ± 16.06
ncm-dbt-02 06:42:10 585866 4000 267 1855 1878 -145.95 ± 4.75 93 1422 465 20 0 -336.06 ± 15.8
ncm-dbt-03 06:43:11 585803 4014 264 1867 1883 -146.92 ± 4.8 97 1433 453 24 0 -338.34 ± 16.02
ncm-dbt-04 06:42:21 567567 3996 255 1856 1885 -147.46 ± 4.68 83 1459 432 24 0 -345.92 ± 16.41
ncm-dbt-05 06:42:50 583132 3990 272 1857 1861 -146.05 ± 4.87 97 1420 449 29 0 -334.78 ± 16.1
20000 1313 9275 9412 -146.41 ± 2.13 456 7172 2250 122 0 -338.52 ± 7.18

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
439936 ncm-dbt-03 586308 14 1 7 6 -159.07 ± 56.3 0 6 1 0 0 -445.23 ± 480.27
439935 ncm-dbt-05 583572 490 35 223 232 -140.49 ± 14.38 13 166 62 4 0 -311.26 ± 43.8
439934 ncm-dbt-04 568593 496 38 231 227 -142.71 ± 13.03 7 183 54 4 0 -338.04 ± 47.1
439933 ncm-dbt-02 585506 500 35 225 240 -138.99 ± 13.1 9 174 65 2 0 -318.25 ± 42.59
439932 ncm-dbt-01 580738 500 34 230 236 -143.89 ± 14.07 12 177 56 5 0 -327.18 ± 46.19
439931 ncm-dbt-03 586985 500 26 230 244 -150.51 ± 13.24 11 185 51 3 0 -356.21 ± 48.54
439930 ncm-dbt-04 566533 500 24 234 242 -155.54 ± 13.2 12 189 46 3 0 -374.11 ± 51.25
439929 ncm-dbt-05 578342 500 38 243 219 -151.34 ± 14.56 19 169 60 2 0 -333.32 ± 44.47
439928 ncm-dbt-02 584664 500 40 229 231 -138.18 ± 13.5 9 175 62 4 0 -315.35 ± 43.81
439927 ncm-dbt-01 583154 500 26 229 245 -149.68 ± 12.45 7 192 48 3 0 -366.78 ± 50.11
439926 ncm-dbt-03 584327 500 35 229 236 -142.25 ± 13.18 11 173 65 1 0 -324.17 ± 42.47
439925 ncm-dbt-04 568872 500 41 234 225 -141.44 ± 12.81 9 176 64 1 0 -327.18 ± 42.83
439924 ncm-dbt-02 586223 500 41 234 225 -141.44 ± 14.33 16 163 69 2 0 -306.84 ± 41.23
439923 ncm-dbt-05 581735 500 30 238 232 -153.86 ± 13.28 11 190 45 4 0 -370.41 ± 51.77
439922 ncm-dbt-01 583698 500 31 227 242 -143.89 ± 14.07 15 168 65 2 0 -318.25 ± 42.59
439921 ncm-dbt-03 587070 500 37 236 227 -146.36 ± 13.8 12 179 55 4 0 -336.46 ± 46.65
439920 ncm-dbt-04 567997 500 28 227 245 -146.36 ± 12.4 6 190 51 3 0 -356.21 ± 48.54
439919 ncm-dbt-02 584664 500 31 233 236 -148.85 ± 13.7 15 173 61 1 0 -336.46 ± 43.96
439918 ncm-dbt-05 584159 500 29 228 243 -146.36 ± 13.02 10 181 57 2 0 -342.85 ± 45.71
439917 ncm-dbt-01 583489 500 29 239 232 -155.54 ± 13.61 15 182 51 2 0 -363.2 ± 48.51
439916 ncm-dbt-03 585632 500 31 235 234 -150.51 ± 13.83 15 176 57 2 0 -342.85 ± 45.71
439915 ncm-dbt-05 585379 500 34 241 225 -153.02 ± 14.49 18 174 55 3 0 -342.85 ± 46.64
439914 ncm-dbt-04 566257 500 30 240 230 -155.54 ± 14.0 14 187 44 5 0 -366.78 ± 52.23
439913 ncm-dbt-02 587197 500 32 232 236 -147.19 ± 13.96 13 178 55 4 0 -336.46 ± 46.65
439912 ncm-dbt-01 581943 500 32 230 238 -145.54 ± 13.25 11 178 59 2 0 -336.46 ± 44.87
439911 ncm-dbt-03 584832 500 35 220 245 -134.95 ± 13.78 10 169 67 4 0 -301.33 ± 42.04
439910 ncm-dbt-05 585000 500 43 228 229 -134.95 ± 12.64 6 175 67 2 0 -312.48 ± 41.9
439909 ncm-dbt-04 566888 500 36 223 241 -136.56 ± 13.17 8 174 65 3 0 -312.48 ± 42.67
439908 ncm-dbt-02 587282 500 26 232 242 -152.18 ± 12.31 7 195 45 3 0 -377.87 ± 51.84
439907 ncm-dbt-01 584243 500 31 236 233 -151.34 ± 12.99 11 185 52 2 0 -359.68 ± 48.01
439906 ncm-dbt-03 584453 500 34 241 225 -153.02 ± 12.48 10 188 51 1 0 -370.41 ± 48.42
439905 ncm-dbt-04 566730 500 23 241 236 -162.35 ± 13.24 16 187 46 1 0 -389.56 ± 51.18
439904 ncm-dbt-02 586223 500 38 239 223 -148.02 ± 13.93 15 173 60 2 0 -333.32 ± 44.47
439903 ncm-dbt-05 581111 500 31 229 240 -145.54 ± 13.83 11 181 53 5 0 -336.46 ± 47.52
439902 ncm-dbt-01 581902 500 42 220 238 -129.35 ± 13.36 6 171 68 5 0 -293.29 ± 41.75
439901 ncm-dbt-03 587792 500 37 225 238 -137.37 ± 14.08 12 168 66 4 0 -304.07 ± 42.38
439900 ncm-dbt-04 568673 500 35 226 239 -139.81 ± 13.83 11 173 62 4 0 -315.35 ± 43.81
439899 ncm-dbt-05 585759 500 32 227 241 -143.07 ± 13.91 9 184 50 7 0 -333.32 ± 48.73
439898 ncm-dbt-02 585169 500 24 231 245 -153.02 ± 12.48 9 191 48 2 0 -374.11 ± 50.1
439897 ncm-dbt-01 582694 500 30 229 241 -146.36 ± 13.22 9 185 52 4 0 -346.12 ± 48.03
439896 ncm-dbt-03 584832 500 28 244 228 -160.64 ± 14.16 16 189 40 5 0 -381.7 ± 54.8

Commit

Commit ID 288a604411fa72b06b30f16194cd03592b28f6f2
Author Unai Corzo
Date 2020-10-14 17:32:12 UTC
Scale factor tweak Add !pawnsOnBothFlanks heuristic to scale factor. STC https://tests.stockfishchess.org/tests/view/5f8080575b3847b5d41f9134 LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 250960 W: 49779 L: 49168 D: 152013 Ptnml(0-2): 4224, 28822, 58802, 29383, 4249 LTC https://tests.stockfishchess.org/tests/view/5f832f498ea73fb8ddf83ddb LLR: 2.95 (-2.94,2.94) {0.25,1.25} Total: 88584 W: 11827 L: 11388 D: 65369 Ptnml(0-2): 585, 8079, 26578, 8412, 638 closes https://github.com/official-stockfish/Stockfish/pull/3179 bench: 3834252
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