Dev Builds » 20200717-1824

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 06:31:38 583825 4014 61 2545 1408 -251.23 ± 6.45 569 1347 90 1 0 -651.89 ± 36.38
ncm-dbt-02 06:29:02 585556 4000 65 2543 1392 -251.61 ± 6.41 564 1351 84 1 0 -663.25 ± 37.69
ncm-dbt-03 06:31:01 585129 3994 50 2549 1395 -255.12 ± 6.43 577 1345 75 0 0 -687.24 ± 39.96
ncm-dbt-04 06:31:45 567962 3996 57 2527 1412 -250.83 ± 6.29 550 1372 74 2 0 -680.39 ± 40.22
ncm-dbt-05 06:31:56 581398 3996 76 2529 1391 -248.45 ± 6.47 557 1341 98 2 0 -632.72 ± 34.82
20000 309 12693 6998 -251.44 ± 2.87 2817 6756 421 6 0 -662.01 ± 16.64

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
462438 ncm-dbt-01 585379 14 0 10 4 -310.89 ± 151.57 3 4 0 0 0 -1199.83 ± 201.74
462437 ncm-dbt-05 581527 496 11 323 162 -257.03 ± 19.52 77 158 13 0 0 -627.97 ± 104.79
462436 ncm-dbt-03 583698 494 7 307 180 -244.8 ± 16.89 62 176 9 0 0 -692.56 ± 134.16
462435 ncm-dbt-04 567205 496 5 307 184 -245.67 ± 16.96 63 176 9 0 0 -693.28 ± 134.17
462434 ncm-dbt-02 585885 500 4 314 182 -251.89 ± 17.68 69 172 9 0 0 -694.7 ± 134.18
462433 ncm-dbt-01 585548 500 8 303 189 -235.44 ± 17.12 60 175 15 0 0 -603.84 ± 95.91
462432 ncm-dbt-04 568315 500 2 321 177 -262.24 ± 17.21 72 175 3 0 0 -887.58 ± 222.18
462431 ncm-dbt-05 582152 500 6 316 178 -251.89 ± 18.76 72 167 10 1 0 -643.7 ± 122.54
462430 ncm-dbt-03 584748 500 5 319 176 -256.44 ± 17.4 70 174 6 0 0 -766.17 ± 188.02
462429 ncm-dbt-01 583614 500 9 315 176 -247.41 ± 18.44 69 169 11 1 0 -629.43 ± 115.29
462428 ncm-dbt-02 583656 500 7 317 176 -251.89 ± 17.95 70 170 10 0 0 -676.04 ± 124.55
462427 ncm-dbt-05 580779 500 7 320 173 -255.29 ± 18.11 72 169 9 0 0 -694.7 ± 134.18
462426 ncm-dbt-04 567720 500 10 309 181 -239.74 ± 17.95 64 172 13 1 0 -603.86 ± 103.96
462425 ncm-dbt-03 584832 500 7 319 174 -254.15 ± 19.31 76 160 14 0 0 -616.18 ± 100.06
462424 ncm-dbt-01 584117 500 9 330 161 -264.59 ± 20.63 85 151 14 0 0 -616.18 ± 100.06
462423 ncm-dbt-02 587197 500 10 318 172 -249.64 ± 19.24 73 163 13 1 0 -603.86 ± 103.96
462422 ncm-dbt-05 580572 500 10 320 170 -251.89 ± 18.5 72 166 12 0 0 -643.67 ± 110.29
462421 ncm-dbt-03 583824 500 5 327 168 -265.77 ± 18.84 79 164 7 0 0 -739.05 ± 163.27
462420 ncm-dbt-04 566454 500 9 321 170 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
462419 ncm-dbt-02 584874 500 10 318 172 -249.64 ± 17.94 69 170 11 0 0 -659.13 ± 116.77
462418 ncm-dbt-01 578753 500 7 315 178 -249.64 ± 17.39 67 174 9 0 0 -694.7 ± 134.18
462417 ncm-dbt-05 580033 500 10 299 191 -229.11 ± 15.99 53 183 14 0 0 -616.18 ± 100.06
462416 ncm-dbt-04 569350 500 6 316 178 -251.89 ± 17.95 69 173 7 1 0 -694.74 ± 156.93
462415 ncm-dbt-03 586308 500 4 307 189 -244.09 ± 16.1 60 183 7 0 0 -739.05 ± 163.27
462414 ncm-dbt-01 584748 500 8 330 162 -265.77 ± 19.69 82 158 10 0 0 -676.04 ± 124.55
462413 ncm-dbt-02 585295 500 5 319 176 -256.44 ± 18.25 73 168 9 0 0 -694.7 ± 134.18
462412 ncm-dbt-04 566217 500 8 320 172 -254.15 ± 18.24 72 168 10 0 0 -676.04 ± 124.55
462411 ncm-dbt-03 584495 500 4 337 159 -279.16 ± 20.45 90 153 7 0 0 -739.05 ± 163.27
462410 ncm-dbt-05 583489 500 9 325 166 -258.75 ± 19.89 79 159 11 1 0 -629.43 ± 115.29
462409 ncm-dbt-02 583405 500 9 310 181 -241.91 ± 16.93 62 177 11 0 0 -659.13 ± 116.77
462408 ncm-dbt-01 585084 500 7 324 169 -259.9 ± 19.51 79 159 12 0 0 -643.67 ± 110.29
462407 ncm-dbt-03 587834 500 7 321 172 -256.44 ± 18.8 75 164 11 0 0 -659.13 ± 116.77
462406 ncm-dbt-05 581277 500 14 314 172 -240.82 ± 18.59 68 164 18 0 0 -571.09 ± 86.01
462405 ncm-dbt-04 566730 500 13 323 164 -251.89 ± 19.28 75 160 15 0 0 -603.84 ± 95.91
462404 ncm-dbt-02 587792 500 10 333 157 -266.96 ± 19.84 83 157 10 0 0 -676.04 ± 124.55
462403 ncm-dbt-01 584369 500 7 310 183 -244.09 ± 16.67 62 179 9 0 0 -694.7 ± 134.18
462402 ncm-dbt-03 585295 500 11 312 177 -241.91 ± 17.72 65 171 14 0 0 -616.18 ± 100.06
462401 ncm-dbt-02 586350 500 10 314 176 -245.19 ± 17.36 65 174 11 0 0 -659.13 ± 116.77
462400 ncm-dbt-04 571712 500 4 310 186 -247.41 ± 16.53 63 180 7 0 0 -739.05 ± 163.27
462399 ncm-dbt-05 581361 500 9 312 179 -244.09 ± 17.22 64 175 11 0 0 -659.13 ± 116.77
462398 ncm-dbt-01 582819 500 6 308 186 -243.0 ± 16.8 62 178 10 0 0 -676.04 ± 124.55

Commit

Commit ID c3092c54bc6fb837137365fc60eb57bd188deaca
Author mstembera
Date 2020-07-17 18:24:02 UTC
Multiple lazy stages. An extension of the lazy eval idea: when the score is sufficiently large we now skip more granular parts of the eval. Inspired by an original patch by Moez Jellouli https://tests.stockfishchess.org/tests/view/5f03b2a159f6f03532894529 Credit to him! STC https://tests.stockfishchess.org/tests/view/5f0a862c59f6f03532894924 LLR: 2.95 (-2.94,2.94) {-0.50,1.50} Total: 13504 W: 2684 L: 2472 D: 8348 Ptnml(0-2): 229, 1496, 3111, 1666, 250 LTC https://tests.stockfishchess.org/tests/view/5f0ac0e159f6f0353289495b LLR: 2.94 (-2.94,2.94) {0.25,1.75} Total: 31312 W: 3926 L: 3677 D: 23709 Ptnml(0-2): 185, 2773, 9509, 2986, 203 closes https://github.com/official-stockfish/Stockfish/pull/2814 bench: 4541608
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