Dev Builds » 20200418-1329

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 06:25:43 585473 3996 64 2554 1378 -253.66 ± 6.52 579 1333 85 1 0 -661.02 ± 37.47
ncm-dbt-02 06:25:30 586510 3998 55 2586 1357 -259.37 ± 6.65 607 1320 69 3 0 -687.42 ± 41.65
ncm-dbt-03 06:26:10 585569 4014 70 2607 1337 -258.77 ± 6.78 621 1297 87 2 0 -653.83 ± 37.01
ncm-dbt-04 06:26:44 568575 3998 65 2589 1344 -258.35 ± 6.73 611 1305 80 3 0 -663.16 ± 38.61
ncm-dbt-05 06:26:37 583616 3994 62 2571 1361 -256.55 ± 6.65 596 1321 76 4 0 -667.16 ± 39.57
20000 316 12907 6777 -257.34 ± 2.98 3014 6576 397 13 0 -666.16 ± 17.13

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
466872 ncm-dbt-03 583866 14 0 10 4 -310.89 ± 151.57 3 4 0 0 0 -1199.83 ± 201.74
466871 ncm-dbt-01 586562 496 5 323 168 -264.08 ± 19.86 80 159 8 1 0 -674.65 ± 142.42
466870 ncm-dbt-05 582819 494 11 309 174 -242.58 ± 18.23 66 166 15 0 0 -601.67 ± 95.9
466869 ncm-dbt-04 565705 498 5 331 162 -272.15 ± 19.07 82 162 5 0 0 -797.48 ± 231.46
466868 ncm-dbt-02 587409 498 5 322 171 -261.39 ± 18.35 75 167 7 0 0 -738.34 ± 163.26
466867 ncm-dbt-03 585253 500 10 326 164 -258.75 ± 20.15 80 157 12 1 0 -616.2 ± 109.19
466866 ncm-dbt-01 584579 500 10 316 174 -247.41 ± 17.92 68 170 12 0 0 -643.67 ± 110.29
466865 ncm-dbt-05 583279 500 11 318 171 -248.52 ± 17.79 68 171 11 0 0 -659.13 ± 116.77
466864 ncm-dbt-04 565548 500 5 330 165 -269.36 ± 20.13 85 155 10 0 0 -676.04 ± 124.55
466863 ncm-dbt-02 585337 500 6 329 165 -266.96 ± 19.56 82 159 9 0 0 -694.7 ± 134.18
466862 ncm-dbt-03 586943 500 6 328 166 -265.77 ± 19.13 80 162 8 0 0 -715.51 ± 146.53
466861 ncm-dbt-01 582527 500 7 316 177 -250.76 ± 17.81 69 171 10 0 0 -676.04 ± 124.55
466860 ncm-dbt-04 568951 500 9 321 170 -254.16 ± 19.82 76 162 10 2 0 -616.2 ± 118.22
466859 ncm-dbt-05 585295 500 5 320 175 -257.59 ± 18.12 72 172 5 1 0 -739.1 ± 208.89
466858 ncm-dbt-02 586139 500 11 314 175 -244.1 ± 18.77 68 169 11 2 0 -603.86 ± 111.89
466857 ncm-dbt-03 583656 500 11 339 150 -272.99 ± 21.4 91 146 13 0 0 -629.41 ± 104.8
466856 ncm-dbt-05 582027 500 6 321 173 -257.59 ± 19.48 77 162 10 1 0 -643.7 ± 122.54
466855 ncm-dbt-02 588174 500 3 321 176 -261.07 ± 17.97 74 170 6 0 0 -766.17 ± 188.02
466854 ncm-dbt-01 585759 500 5 319 176 -256.44 ± 18.53 74 166 10 0 0 -676.04 ± 124.55
466853 ncm-dbt-04 567561 500 9 323 168 -256.44 ± 19.07 76 162 12 0 0 -643.67 ± 110.29
466852 ncm-dbt-03 586646 500 7 323 170 -258.74 ± 18.82 76 164 10 0 0 -676.04 ± 124.55
466851 ncm-dbt-02 586139 500 7 338 155 -276.68 ± 20.16 88 155 7 0 0 -739.05 ± 163.27
466850 ncm-dbt-01 585506 500 5 323 172 -261.07 ± 17.97 74 170 6 0 0 -766.17 ± 188.02
466849 ncm-dbt-04 570388 500 9 320 171 -253.02 ± 18.1 71 169 10 0 0 -676.04 ± 124.55
466848 ncm-dbt-05 583112 500 6 332 162 -270.57 ± 19.71 84 158 8 0 0 -715.51 ± 146.53
466847 ncm-dbt-03 586943 500 6 321 173 -257.59 ± 18.95 75 166 8 1 0 -676.08 ± 142.43
466846 ncm-dbt-02 586731 500 6 323 171 -259.9 ± 18.12 74 169 7 0 0 -739.05 ± 163.27
466845 ncm-dbt-01 588217 500 9 313 178 -245.19 ± 17.09 64 176 10 0 0 -676.04 ± 124.55
466844 ncm-dbt-04 569709 500 11 320 169 -250.76 ± 18.62 72 165 13 0 0 -629.41 ± 104.8
466843 ncm-dbt-05 585801 500 7 322 171 -257.59 ± 18.95 75 166 8 1 0 -676.08 ± 142.43
466842 ncm-dbt-03 585464 500 10 324 166 -256.44 ± 19.34 77 160 13 0 0 -629.41 ± 104.8
466841 ncm-dbt-01 586816 500 14 327 159 -255.29 ± 19.72 78 157 15 0 0 -603.84 ± 95.91
466840 ncm-dbt-02 586181 500 8 316 176 -249.64 ± 17.94 69 170 11 0 0 -659.13 ± 116.77
466839 ncm-dbt-05 583698 500 9 322 169 -255.3 ± 19.46 76 162 11 1 0 -629.43 ± 115.29
466838 ncm-dbt-03 586266 500 9 320 171 -253.02 ± 17.82 70 171 9 0 0 -694.7 ± 134.18
466837 ncm-dbt-04 569350 500 7 317 176 -251.89 ± 17.95 69 173 7 1 0 -694.74 ± 156.93
466836 ncm-dbt-02 585970 500 9 323 168 -256.44 ± 19.6 77 161 11 1 0 -629.43 ± 115.29
466835 ncm-dbt-01 583824 500 9 317 174 -249.64 ± 18.73 72 164 14 0 0 -616.18 ± 100.06
466834 ncm-dbt-04 571391 500 10 327 163 -259.9 ± 19.78 80 157 13 0 0 -629.41 ± 104.8
466833 ncm-dbt-05 582903 500 7 327 166 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
466832 ncm-dbt-03 585084 500 11 316 173 -246.3 ± 18.3 69 167 14 0 0 -616.18 ± 100.06

Commit

Commit ID bde1506ba56ae566ac4e797e642017fe386f6425
Author protonspring
Date 2020-04-18 13:29:24 UTC
Simplify minPawnDistance This is a functional simplification which fixes an awkward numerical cliff. With master king_safety, no pawns is scored higher than pawn(s) that is/are far from the king. This may motivate SF to throw away pawns to increase king safety. With this patch, there is a consistent value for minPawnDistance where losing a pawn never increases king safety. STC LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 45548 W: 8624 L: 8525 D: 28399 Ptnml(0-2): 592, 4937, 11587, 5096, 562 https://tests.stockfishchess.org/tests/view/5e98ced630be947a14e9ddc5 LTC LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 42084 W: 5292 L: 5242 D: 31550 Ptnml(0-2): 193, 3703, 13252, 3649, 245 https://tests.stockfishchess.org/tests/view/5e98e22e30be947a14e9de07 closes https://github.com/official-stockfish/Stockfish/pull/2639 bench 4600292
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