Dev Builds » 20200416-1940

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 06:26:06 585001 4000 60 2560 1380 -254.73 ± 6.45 578 1345 76 1 0 -680.57 ± 39.69
ncm-dbt-02 06:26:38 586283 4000 56 2603 1341 -261.51 ± 6.75 622 1307 67 4 0 -687.51 ± 42.2
ncm-dbt-03 06:25:20 585749 4000 53 2616 1331 -263.86 ± 6.79 635 1295 68 2 0 -694.74 ± 42.02
ncm-dbt-04 06:27:08 568312 3990 66 2598 1326 -260.25 ± 6.84 627 1278 90 0 0 -654.72 ± 36.37
ncm-dbt-05 06:26:36 582915 4010 63 2616 1331 -261.46 ± 6.75 627 1300 77 1 0 -678.75 ± 39.43
20000 298 12993 6709 -260.34 ± 3.0 3089 6525 378 8 0 -678.76 ± 17.56

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
466913 ncm-dbt-05 582027 10 0 10 0 -1199.83 ± 249.82 5 0 0 0 0 -1199.83 ± 231.31
466912 ncm-dbt-04 567878 490 6 330 154 -276.2 ± 20.94 88 148 9 0 0 -691.12 ± 134.15
466911 ncm-dbt-02 586901 500 9 319 172 -251.89 ± 17.95 70 170 10 0 0 -676.04 ± 124.55
466910 ncm-dbt-01 585421 500 8 308 184 -240.82 ± 16.51 60 180 10 0 0 -676.04 ± 124.55
466909 ncm-dbt-03 584748 500 5 340 155 -281.67 ± 20.45 91 153 6 0 0 -766.17 ± 188.02
466908 ncm-dbt-05 581277 500 8 321 171 -255.29 ± 18.39 73 167 10 0 0 -676.04 ± 124.55
466907 ncm-dbt-05 581194 500 10 333 157 -266.96 ± 20.39 85 153 12 0 0 -643.67 ± 110.29
466906 ncm-dbt-04 568991 500 10 332 158 -265.77 ± 19.69 82 158 10 0 0 -676.04 ± 124.55
466905 ncm-dbt-02 588558 500 3 330 167 -271.78 ± 18.67 81 165 4 0 0 -837.28 ± 240.94
466904 ncm-dbt-01 584495 500 9 325 166 -258.74 ± 18.82 76 164 10 0 0 -676.04 ± 124.55
466903 ncm-dbt-03 587240 500 7 324 169 -259.9 ± 19.51 78 162 9 1 0 -659.17 ± 131.36
466902 ncm-dbt-05 581610 500 8 334 158 -270.57 ± 20.0 85 156 9 0 0 -694.7 ± 134.18
466901 ncm-dbt-04 566849 500 8 329 163 -264.59 ± 20.36 84 153 13 0 0 -629.41 ± 104.8
466900 ncm-dbt-02 585506 500 10 316 174 -247.41 ± 19.21 71 166 11 2 0 -603.86 ± 111.89
466899 ncm-dbt-01 585548 500 6 325 169 -262.24 ± 18.7 77 165 8 0 0 -715.51 ± 146.53
466898 ncm-dbt-03 585042 500 7 322 171 -257.59 ± 18.4 74 167 9 0 0 -694.7 ± 134.18
466897 ncm-dbt-05 584579 500 6 322 172 -258.74 ± 18.26 74 168 8 0 0 -715.51 ± 146.53
466896 ncm-dbt-04 569310 500 10 330 160 -263.41 ± 19.95 82 156 12 0 0 -643.67 ± 110.29
466895 ncm-dbt-02 585464 500 5 331 164 -270.57 ± 19.42 83 160 7 0 0 -739.05 ± 163.27
466894 ncm-dbt-01 586562 500 4 333 163 -274.22 ± 19.57 85 159 6 0 0 -766.17 ± 188.02
466893 ncm-dbt-03 585000 500 13 321 166 -249.64 ± 18.99 73 162 15 0 0 -603.84 ± 95.91
466892 ncm-dbt-05 583363 500 9 336 155 -271.78 ± 20.98 88 152 9 1 0 -659.17 ± 131.36
466891 ncm-dbt-02 586012 500 10 335 155 -269.36 ± 20.95 87 152 10 1 0 -643.7 ± 122.54
466890 ncm-dbt-04 568355 500 12 315 173 -244.09 ± 18.52 69 165 16 0 0 -592.27 ± 92.24
466889 ncm-dbt-01 585421 500 9 321 170 -254.16 ± 19.05 74 165 10 1 0 -643.7 ± 122.54
466888 ncm-dbt-03 586689 500 8 322 170 -256.44 ± 19.34 76 163 10 1 0 -643.7 ± 122.54
466887 ncm-dbt-05 584537 500 7 316 177 -250.76 ± 17.81 69 171 10 0 0 -676.04 ± 124.55
466886 ncm-dbt-04 570228 500 6 307 187 -241.91 ± 16.93 62 177 11 0 0 -659.13 ± 116.77
466885 ncm-dbt-02 585337 500 5 325 170 -263.41 ± 18.55 77 166 7 0 0 -739.05 ± 163.27
466884 ncm-dbt-03 585421 500 1 332 167 -276.68 ± 19.56 86 159 5 0 0 -798.18 ± 231.48
466883 ncm-dbt-01 584579 500 7 314 179 -248.52 ± 16.96 65 177 8 0 0 -715.51 ± 146.53
466882 ncm-dbt-05 583698 500 8 320 172 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
466881 ncm-dbt-02 586774 500 7 334 159 -271.78 ± 20.98 88 152 9 1 0 -659.17 ± 131.36
466880 ncm-dbt-04 566493 500 8 320 172 -254.15 ± 19.05 75 162 13 0 0 -629.41 ± 104.8
466879 ncm-dbt-01 583279 500 10 316 174 -247.41 ± 18.18 69 168 13 0 0 -629.41 ± 104.8
466878 ncm-dbt-03 586520 500 6 334 160 -272.99 ± 19.72 85 158 7 0 0 -739.05 ± 163.27
466877 ncm-dbt-05 583950 500 7 324 169 -259.9 ± 18.69 76 165 9 0 0 -694.7 ± 134.18
466876 ncm-dbt-04 568395 500 6 335 159 -274.22 ± 19.57 85 159 6 0 0 -766.17 ± 188.02
466875 ncm-dbt-02 585717 500 7 313 180 -247.41 ± 17.1 65 176 9 0 0 -694.7 ± 134.18
466874 ncm-dbt-01 584706 500 7 318 175 -253.02 ± 18.37 72 167 11 0 0 -659.13 ± 116.77
466873 ncm-dbt-03 585337 500 6 321 173 -257.59 ± 17.83 72 171 7 0 0 -739.05 ± 163.27

Commit

Commit ID ecac132bca23c6dfcc697cc3cd069939bc168ed4
Author xoto10
Date 2020-04-16 19:40:06 UTC
Scale factor in opposite-color bishop endings This change varies the scale factor with the total number of pieces and pawns on the strongSide. STC : LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 150920 W: 28828 L: 28422 D: 93670 +0.65 Elo Ptnml(0-2): 2507, 17548, 35030, 17782, 2593 https://tests.stockfishchess.org/tests/view/5e983eb2c00499c5410f4951 LTC : LLR: 2.95 (-2.94,2.94) {0.25,1.75} Total: 69238 W: 8810 L: 8446 D: 51982 +1.58 Elo Ptnml(0-2): 451, 6276, 20879, 6484, 529 https://tests.stockfishchess.org/tests/view/5e985b27c00499c5410f4987 closes https://github.com/official-stockfish/Stockfish/pull/2637 Bench 4821332
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