Dev Builds » 20200808-2039

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 06:33:11 583998 4018 68 2579 1371 -254.69 ± 6.59 593 1326 89 1 0 -654.01 ± 36.59
ncm-dbt-02 06:32:03 586237 4000 74 2569 1357 -254.02 ± 6.62 590 1316 93 1 0 -645.56 ± 35.77
ncm-dbt-03 06:33:46 585593 3998 60 2579 1359 -257.63 ± 6.65 604 1312 82 1 0 -667.34 ± 38.17
ncm-dbt-04 06:31:49 567361 4000 70 2580 1350 -256.16 ± 6.72 605 1301 93 1 0 -645.56 ± 35.77
ncm-dbt-05 06:34:13 581961 3984 57 2555 1372 -255.88 ± 6.63 593 1313 85 1 0 -660.48 ± 37.46
20000 329 12862 6809 -255.67 ± 2.97 2985 6568 442 5 0 -654.39 ± 16.24

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
461962 ncm-dbt-01 586012 18 0 13 5 -316.66 ± 133.13 4 5 0 0 0 -1199.83 ± 179.72
461961 ncm-dbt-05 581777 484 9 315 160 -258.88 ± 20.9 80 146 16 0 0 -586.43 ± 92.21
461960 ncm-dbt-03 585885 498 6 322 170 -260.21 ± 18.77 76 164 9 0 0 -693.99 ± 134.17
461959 ncm-dbt-02 587325 500 12 323 165 -253.02 ± 19.68 77 157 16 0 0 -592.27 ± 92.24
461958 ncm-dbt-04 566533 500 9 330 161 -264.59 ± 20.09 83 155 12 0 0 -643.67 ± 110.29
461957 ncm-dbt-01 584369 500 7 326 167 -262.24 ± 19.53 80 159 11 0 0 -659.13 ± 116.77
461956 ncm-dbt-05 577889 500 5 323 172 -261.07 ± 19.11 78 162 10 0 0 -676.04 ± 124.55
461955 ncm-dbt-03 587367 500 5 331 164 -270.57 ± 19.42 83 160 7 0 0 -739.05 ± 163.27
461954 ncm-dbt-04 568355 500 12 322 166 -251.89 ± 19.53 76 158 16 0 0 -592.27 ± 92.24
461953 ncm-dbt-02 583950 500 9 324 167 -257.59 ± 18.68 75 165 10 0 0 -676.04 ± 124.55
461952 ncm-dbt-01 584076 500 10 306 184 -236.51 ± 17.0 60 176 14 0 0 -616.18 ± 100.06
461951 ncm-dbt-05 580655 500 4 325 171 -264.59 ± 19.82 81 160 8 1 0 -676.08 ± 142.43
461950 ncm-dbt-03 585928 500 5 320 175 -257.59 ± 17.54 71 173 6 0 0 -766.17 ± 188.02
461949 ncm-dbt-04 569111 500 8 320 172 -254.16 ± 19.31 75 163 11 1 0 -629.43 ± 115.29
461948 ncm-dbt-02 586308 500 13 320 167 -248.52 ± 19.35 74 159 17 0 0 -581.38 ± 88.96
461947 ncm-dbt-01 584453 500 5 328 167 -266.96 ± 19.28 81 161 8 0 0 -715.51 ± 146.53
461946 ncm-dbt-05 583028 500 7 317 176 -251.89 ± 17.95 70 170 10 0 0 -676.04 ± 124.55
461945 ncm-dbt-03 584369 500 8 324 168 -258.74 ± 19.09 77 162 11 0 0 -659.13 ± 116.77
461944 ncm-dbt-02 585464 500 13 321 166 -249.64 ± 19.5 74 161 14 1 0 -592.29 ± 99.42
461943 ncm-dbt-04 568792 500 9 316 175 -248.52 ± 17.79 68 171 11 0 0 -659.13 ± 116.77
461942 ncm-dbt-01 585295 500 13 335 152 -265.78 ± 21.55 88 147 14 1 0 -592.29 ± 99.42
461941 ncm-dbt-05 584958 500 7 323 170 -258.74 ± 18.54 75 166 9 0 0 -694.7 ± 134.18
461940 ncm-dbt-02 588174 500 6 317 177 -253.02 ± 17.54 69 173 8 0 0 -715.51 ± 146.53
461939 ncm-dbt-03 587494 500 12 309 179 -237.58 ± 18.16 64 170 15 1 0 -581.4 ± 95.42
461938 ncm-dbt-04 565981 500 6 330 164 -268.16 ± 19.71 83 158 9 0 0 -694.7 ± 134.18
461937 ncm-dbt-01 584076 500 7 314 179 -248.52 ± 16.96 65 177 8 0 0 -715.51 ± 146.53
461936 ncm-dbt-04 564880 500 9 329 162 -263.41 ± 19.95 82 156 12 0 0 -643.67 ± 110.29
461935 ncm-dbt-02 584706 500 8 312 180 -245.19 ± 17.63 66 172 12 0 0 -643.67 ± 110.29
461934 ncm-dbt-05 584159 500 7 321 172 -256.44 ± 17.97 72 170 8 0 0 -715.51 ± 146.53
461933 ncm-dbt-03 582819 500 8 331 161 -266.96 ± 20.66 86 151 13 0 0 -629.41 ± 104.8
461932 ncm-dbt-01 583112 500 8 322 170 -256.44 ± 18.8 75 164 11 0 0 -659.13 ± 116.77
461931 ncm-dbt-04 567126 500 6 309 185 -244.09 ± 16.67 62 179 9 0 0 -694.7 ± 134.18
461930 ncm-dbt-02 586985 500 7 318 175 -253.02 ± 17.54 69 173 8 0 0 -715.51 ± 146.53
461929 ncm-dbt-05 580655 500 11 318 171 -248.52 ± 18.59 71 165 14 0 0 -616.18 ± 100.06
461928 ncm-dbt-01 582945 500 7 310 183 -244.09 ± 16.67 62 179 9 0 0 -694.7 ± 134.18
461927 ncm-dbt-03 586520 500 7 314 179 -248.52 ± 17.52 67 173 10 0 0 -676.04 ± 124.55
461926 ncm-dbt-04 568116 500 11 324 165 -255.29 ± 19.19 76 161 13 0 0 -629.41 ± 104.8
461925 ncm-dbt-02 586985 500 6 334 160 -272.99 ± 20.01 86 156 8 0 0 -715.51 ± 146.53
461924 ncm-dbt-01 581652 500 11 325 164 -256.44 ± 19.6 78 158 14 0 0 -616.18 ± 100.06
461923 ncm-dbt-03 584369 500 9 328 163 -262.24 ± 19.53 80 159 11 0 0 -659.13 ± 116.77
461922 ncm-dbt-05 582569 500 7 313 180 -247.41 ± 17.38 66 174 10 0 0 -676.04 ± 124.55

Commit

Commit ID 1949eb8604853e2ad8f85400590e6a1e2ce7e451
Author Unai Corzo
Date 2020-08-08 20:39:26 UTC
Singular extension search tweak Tweak depth. STC https://tests.stockfishchess.org/tests/view/5f2d22ec61e3b6af64881f40 LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 17984 W: 2603 L: 2441 D: 12940 Ptnml(0-2): 133, 1751, 5094, 1849, 165 LTC https://tests.stockfishchess.org/tests/view/5f2d5a6a61e3b6af64881f7f LLR: 2.95 (-2.94,2.94) {0.25,1.75} Total: 85808 W: 5956 L: 5621 D: 74231 Ptnml(0-2): 149, 4748, 32785, 5063, 159 closes https://github.com/official-stockfish/Stockfish/pull/2950 fixes two README.md typos: fixes https://github.com/official-stockfish/Stockfish/issues/2932 bench: 4022669
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