Dev Builds » 20201231-1644

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 06:52:08 582331 3998 276 1850 1872 -144.59 ± 4.96 103 1400 464 32 0 -327.08 ± 15.83
ncm-dbt-02 06:50:25 585815 4000 305 1849 1846 -141.44 ± 5.11 114 1352 498 36 0 -311.77 ± 15.28
ncm-dbt-03 06:49:39 587230 4000 324 1833 1843 -137.88 ± 5.05 97 1356 506 41 0 -305.45 ± 15.16
ncm-dbt-04 06:51:11 566189 4006 288 1842 1876 -142.22 ± 4.86 93 1396 486 28 0 -322.23 ± 15.46
ncm-dbt-05 06:53:01 583601 3996 286 1819 1891 -140.47 ± 4.87 87 1391 488 32 0 -318.05 ± 15.43
20000 1479 9193 9328 -141.32 ± 2.22 494 6895 2442 169 0 -316.8 ± 6.89

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
439806 ncm-dbt-04 566060 6 0 3 3 -190.46 ± 18.51 0 3 0 0 0 -1199.83 ± 276.48
439805 ncm-dbt-05 582778 496 33 238 225 -152.73 ± 15.33 20 170 53 5 0 -334.86 ± 47.52
439804 ncm-dbt-01 583363 498 48 233 217 -135.55 ± 15.68 17 159 65 8 0 -284.66 ± 42.7
439803 ncm-dbt-02 586477 500 35 230 235 -143.07 ± 12.54 8 180 61 1 0 -336.46 ± 43.96
439802 ncm-dbt-03 587664 500 37 225 238 -137.37 ± 14.08 10 174 60 6 0 -309.64 ± 44.55
439801 ncm-dbt-04 565076 500 36 234 230 -145.54 ± 14.57 18 164 66 2 0 -315.35 ± 42.24
439800 ncm-dbt-02 585042 500 48 229 223 -131.74 ± 14.54 12 163 69 6 0 -285.49 ± 41.44
439799 ncm-dbt-03 587664 500 45 233 222 -137.37 ± 14.6 15 162 69 4 0 -295.94 ± 41.39
439798 ncm-dbt-04 564213 500 39 235 226 -143.89 ± 13.51 12 174 62 2 0 -327.18 ± 43.69
439797 ncm-dbt-01 582235 500 33 236 231 -149.68 ± 14.43 15 178 52 5 0 -339.63 ± 47.98
439796 ncm-dbt-05 586139 500 33 223 244 -138.99 ± 13.67 9 177 59 5 0 -318.25 ± 44.96
439795 ncm-dbt-04 567640 500 31 236 233 -151.34 ± 12.79 10 187 51 2 0 -363.2 ± 48.51
439794 ncm-dbt-03 586520 500 40 225 235 -134.95 ± 14.13 12 165 69 4 0 -295.94 ± 41.39
439793 ncm-dbt-01 583447 500 38 219 243 -131.74 ± 12.93 6 172 69 3 0 -301.33 ± 41.33
439792 ncm-dbt-02 584622 500 37 221 242 -134.15 ± 15.5 16 160 66 8 0 -282.94 ± 42.37
439791 ncm-dbt-05 585084 500 37 219 244 -132.54 ± 13.47 8 170 68 4 0 -298.62 ± 41.71
439790 ncm-dbt-04 567442 500 37 229 234 -140.62 ± 13.24 11 171 67 1 0 -318.25 ± 41.77
439789 ncm-dbt-03 588004 500 32 232 236 -147.19 ± 13.58 11 182 53 4 0 -342.85 ± 47.56
439788 ncm-dbt-05 582360 500 34 223 243 -138.18 ± 12.93 7 178 62 3 0 -321.19 ± 43.77
439787 ncm-dbt-02 587325 500 34 222 244 -137.37 ± 14.6 13 168 63 6 0 -301.33 ± 43.45
439786 ncm-dbt-01 580240 500 27 235 238 -153.86 ± 13.69 14 183 50 3 0 -359.68 ± 49.05
439785 ncm-dbt-04 566454 500 28 226 246 -145.54 ± 12.64 7 187 53 3 0 -349.43 ± 47.56
439784 ncm-dbt-03 586858 500 52 224 224 -124.6 ± 14.64 11 157 75 7 0 -265.78 ± 39.69
439783 ncm-dbt-02 584453 500 37 240 223 -149.68 ± 15.5 22 163 61 4 0 -318.25 ± 44.18
439782 ncm-dbt-01 580821 500 42 238 220 -143.89 ± 14.07 14 171 62 3 0 -321.19 ± 43.77
439781 ncm-dbt-05 581444 500 39 238 223 -146.36 ± 13.61 12 178 57 3 0 -336.46 ± 45.77
439780 ncm-dbt-03 587113 500 47 230 223 -133.34 ± 14.68 14 160 71 5 0 -285.49 ± 40.81
439779 ncm-dbt-04 568236 500 42 218 240 -127.76 ± 14.77 13 156 75 6 0 -270.57 ± 39.67
439778 ncm-dbt-01 584495 500 31 227 242 -143.89 ± 14.25 13 175 57 5 0 -324.17 ± 45.77
439777 ncm-dbt-05 586181 500 37 226 237 -138.18 ± 13.5 10 172 65 3 0 -312.48 ± 42.67
439776 ncm-dbt-02 583908 500 31 239 230 -153.86 ± 13.88 14 184 48 4 0 -359.68 ± 50.07
439775 ncm-dbt-03 588132 500 34 233 233 -146.36 ± 15.07 18 168 59 5 0 -318.25 ± 44.96
439774 ncm-dbt-04 565115 500 33 233 234 -147.19 ± 13.38 10 184 52 4 0 -346.12 ± 48.03
439773 ncm-dbt-02 588686 500 40 233 227 -141.44 ± 14.86 16 166 63 5 0 -306.84 ± 43.45
439772 ncm-dbt-01 581402 500 26 226 248 -147.19 ± 13.18 11 180 57 2 0 -342.85 ± 45.71
439771 ncm-dbt-05 580033 500 32 224 244 -140.62 ± 14.53 14 169 62 5 0 -309.64 ± 43.82
439770 ncm-dbt-03 585885 500 37 231 232 -142.25 ± 13.18 6 188 50 6 0 -339.63 ± 48.85
439769 ncm-dbt-04 565469 500 42 228 230 -135.76 ± 14.81 12 170 60 8 0 -298.62 ± 44.44
439768 ncm-dbt-02 586012 500 43 235 222 -140.62 ± 13.8 13 168 67 2 0 -312.48 ± 41.9
439767 ncm-dbt-01 582652 500 31 236 233 -151.34 ± 13.6 13 182 52 3 0 -352.8 ± 48.05
439766 ncm-dbt-05 584790 500 41 228 231 -136.56 ± 13.17 7 177 62 4 0 -315.35 ± 43.81

Commit

Commit ID c57c71bf5c56665b0339fa983665bdef4bf8a099
Author Unai Corzo
Date 2020-12-31 16:44:15 UTC
Assorted parameter tweak Parameter tweak from various tunes and patches. STC https://tests.stockfishchess.org/tests/view/5fec2ae36019e097de3ee94a LLR: 2.97 (-2.94,2.94) {-0.25,1.25} Total: 41976 W: 4032 L: 3848 D: 34096 Ptnml(0-2): 147, 3086, 14341, 3264, 150 LTC https://tests.stockfishchess.org/tests/view/5fec5c3c6019e097de3ee973 LLR: 2.94 (-2.94,2.94) {0.25,1.25} Total: 23936 W: 970 L: 844 D: 22122 Ptnml(0-2): 14, 749, 10319, 869, 17 closes https://github.com/official-stockfish/Stockfish/pull/3281 bench: 4354546
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