Dev Builds » 20200731-0801

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 06:31:10 584803 4002 75 2555 1372 -251.72 ± 6.62 583 1315 102 1 0 -629.52 ± 34.11
ncm-dbt-02 06:30:46 585539 4000 72 2548 1380 -251.33 ± 6.51 573 1330 97 0 0 -641.85 ± 34.99
ncm-dbt-03 06:30:25 584555 4000 69 2537 1394 -250.2 ± 6.51 566 1339 92 3 0 -640.02 ± 35.94
ncm-dbt-04 06:31:19 568149 3998 67 2521 1410 -248.42 ± 6.43 555 1345 98 1 0 -636.34 ± 34.82
ncm-dbt-05 06:29:45 582681 4000 74 2512 1414 -246.03 ± 6.43 547 1346 105 2 0 -621.05 ± 33.61
20000 357 12673 6970 -249.53 ± 2.91 2824 6675 494 7 0 -633.6 ± 15.36

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
462353 ncm-dbt-01 586054 2 0 2 0 -1041.08 ± 395.59 1 0 0 0 0 -1129.65 ± 376.02
462352 ncm-dbt-04 569989 498 7 315 176 -251.03 ± 17.33 67 174 8 0 0 -714.8 ± 146.53
462351 ncm-dbt-02 585421 500 7 320 173 -255.29 ± 18.39 73 167 10 0 0 -676.04 ± 124.55
462350 ncm-dbt-03 585337 500 9 309 182 -240.82 ± 17.84 64 173 12 1 0 -616.2 ± 109.19
462349 ncm-dbt-05 585211 500 8 309 183 -241.91 ± 17.72 64 174 11 1 0 -629.43 ± 115.29
462348 ncm-dbt-01 587240 500 6 319 175 -255.29 ± 17.54 70 173 7 0 0 -739.05 ± 163.27
462347 ncm-dbt-04 567047 500 10 318 172 -249.64 ± 18.99 73 162 15 0 0 -603.84 ± 95.91
462346 ncm-dbt-02 588899 500 14 313 173 -239.73 ± 17.44 63 173 14 0 0 -616.18 ± 100.06
462345 ncm-dbt-03 585042 500 12 310 178 -238.65 ± 18.3 66 166 18 0 0 -571.09 ± 86.01
462344 ncm-dbt-05 578383 500 8 310 182 -243.0 ± 16.52 61 180 9 0 0 -694.7 ± 134.18
462343 ncm-dbt-01 585169 500 9 303 188 -234.38 ± 16.71 58 178 14 0 0 -616.18 ± 100.06
462342 ncm-dbt-02 582485 500 7 317 176 -251.89 ± 17.68 69 172 9 0 0 -694.7 ± 134.18
462341 ncm-dbt-03 585843 500 6 318 176 -254.16 ± 18.24 71 171 7 1 0 -694.74 ± 156.93
462340 ncm-dbt-05 580406 500 13 318 169 -246.3 ± 18.81 71 163 16 0 0 -592.27 ± 92.24
462339 ncm-dbt-04 567561 500 6 316 178 -251.89 ± 18.5 72 166 12 0 0 -643.67 ± 110.29
462338 ncm-dbt-01 584790 500 7 313 180 -247.41 ± 17.92 68 170 12 0 0 -643.67 ± 110.29
462337 ncm-dbt-03 586393 500 10 324 166 -256.44 ± 19.34 77 160 13 0 0 -629.41 ± 104.8
462336 ncm-dbt-02 583321 500 5 330 165 -269.36 ± 19.57 83 159 8 0 0 -715.51 ± 146.53
462335 ncm-dbt-04 569470 500 12 312 176 -240.82 ± 18.09 65 171 13 1 0 -603.86 ± 103.96
462334 ncm-dbt-05 584495 500 9 315 176 -247.41 ± 17.92 67 173 9 1 0 -659.17 ± 131.36
462333 ncm-dbt-01 585548 500 9 321 170 -254.16 ± 19.31 75 163 11 1 0 -629.43 ± 115.29
462332 ncm-dbt-03 579413 500 7 316 177 -250.76 ± 18.08 69 172 8 1 0 -676.08 ± 142.43
462331 ncm-dbt-02 587579 500 13 321 166 -249.64 ± 19.5 75 158 17 0 0 -581.38 ± 88.96
462330 ncm-dbt-04 568554 500 5 320 175 -257.59 ± 18.95 76 163 11 0 0 -659.13 ± 116.77
462329 ncm-dbt-01 585632 500 9 326 165 -259.9 ± 19.78 80 157 13 0 0 -629.41 ± 104.8
462328 ncm-dbt-05 581735 500 10 314 176 -245.19 ± 18.92 71 162 17 0 0 -581.38 ± 88.96
462327 ncm-dbt-02 586097 500 7 325 168 -261.07 ± 19.11 78 162 10 0 0 -676.04 ± 124.55
462326 ncm-dbt-04 567680 500 10 311 179 -241.91 ± 17.72 65 171 14 0 0 -616.18 ± 100.06
462325 ncm-dbt-03 584537 500 8 315 177 -248.52 ± 18.33 70 167 13 0 0 -629.41 ± 104.8
462324 ncm-dbt-05 584411 500 6 314 180 -249.64 ± 18.47 71 166 13 0 0 -629.41 ± 104.8
462323 ncm-dbt-01 582945 500 8 318 174 -251.89 ± 18.23 71 168 11 0 0 -659.13 ± 116.77
462322 ncm-dbt-03 586054 500 7 320 173 -255.29 ± 17.83 71 171 8 0 0 -715.51 ± 146.53
462321 ncm-dbt-02 583782 500 11 307 182 -236.51 ± 17.77 63 170 17 0 0 -581.38 ± 88.96
462320 ncm-dbt-04 565508 500 12 307 181 -235.44 ± 17.37 61 173 16 0 0 -592.27 ± 92.24
462319 ncm-dbt-05 583908 500 10 320 170 -251.89 ± 18.76 73 164 13 0 0 -629.41 ± 104.8
462318 ncm-dbt-01 584537 500 16 339 145 -266.96 ± 21.95 91 141 18 0 0 -571.09 ± 86.01
462317 ncm-dbt-03 583824 500 10 325 165 -257.59 ± 19.49 78 159 13 0 0 -629.41 ± 104.8
462316 ncm-dbt-02 586731 500 8 315 177 -248.52 ± 18.06 69 169 12 0 0 -643.67 ± 110.29
462315 ncm-dbt-04 569390 500 5 322 173 -259.9 ± 18.69 76 165 9 0 0 -694.7 ± 134.18
462314 ncm-dbt-05 582903 500 10 312 178 -243.0 ± 18.63 69 164 17 0 0 -581.38 ± 88.96
462313 ncm-dbt-01 581319 500 11 314 175 -244.09 ± 18.52 69 165 16 0 0 -592.27 ± 92.24

Commit

Commit ID 33f3cfae0093b934563e1eca78486261f18e4650
Author Stéphane Nicolet
Date 2020-07-31 08:01:39 UTC
Improve handling of queen imbalance We double the bonus for potential threats by minors and rooks against our queen, in case of "queen vs pieces imbalance". Hopefully this will improve a little bit the evaluation for this well-known Stockfish weakness. passed STC: LLR: 2.93 (-2.94,2.94) {-0.50,1.50} Total: 72976 W: 14003 L: 13710 D: 45263 Ptnml(0-2): 1218, 8370, 17094, 8513, 1293 https://tests.stockfishchess.org/tests/view/5efa50eb020eec13834a977d passed LTC: LLR: 2.93 (-2.94,2.94) {0.25,1.75} Total: 22232 W: 2779 L: 2560 D: 16893 Ptnml(0-2): 129, 1885, 6896, 2050, 156 https://tests.stockfishchess.org/tests/view/5f1fdd2dc09435d870cb9f13 closes https://github.com/official-stockfish/Stockfish/pull/2864 Bench: 4367349
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