Dev Builds » 20200809-2151

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 06:31:53 583592 4000 58 2558 1384 -254.73 ± 6.68 591 1325 77 7 0 -653.21 ± 39.05
ncm-dbt-02 06:33:11 586179 4004 85 2585 1334 -254.37 ± 6.8 608 1284 110 0 0 -619.6 ± 32.8
ncm-dbt-03 06:33:14 586363 4002 69 2543 1390 -250.87 ± 6.49 569 1337 94 1 0 -643.78 ± 35.57
ncm-dbt-04 06:32:44 567502 4000 85 2603 1312 -257.31 ± 6.93 627 1265 107 1 0 -621.05 ± 33.28
ncm-dbt-05 06:33:56 582455 3994 79 2524 1391 -247.51 ± 6.44 553 1339 105 0 0 -627.46 ± 33.6
20000 376 12813 6811 -252.94 ± 2.98 2948 6550 493 9 0 -632.55 ± 15.37

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
444177 ncm-dbt-03 586858 2 0 1 1 -189.7 ± 55.98 0 1 0 0 0 -1129.65 ± 376.02
444176 ncm-dbt-02 587367 4 1 3 0 -190.27 ± 634.3 1 0 1 0 0 -190.5 ± 634.21
444175 ncm-dbt-05 581610 494 10 309 175 -243.69 ± 18.37 67 165 15 0 0 -601.67 ± 95.9
444174 ncm-dbt-04 569669 500 11 330 159 -262.24 ± 19.8 81 157 12 0 0 -643.67 ± 110.29
444173 ncm-dbt-01 585421 500 9 315 176 -247.41 ± 17.92 68 170 12 0 0 -643.67 ± 110.29
444172 ncm-dbt-02 587579 500 12 328 160 -258.74 ± 19.89 80 156 14 0 0 -616.18 ± 100.06
444171 ncm-dbt-03 588430 500 9 317 174 -249.64 ± 18.47 71 166 13 0 0 -629.41 ± 104.8
444170 ncm-dbt-04 568156 500 9 309 182 -240.82 ± 16.51 60 180 10 0 0 -676.04 ± 124.55
444169 ncm-dbt-05 581111 500 12 316 172 -245.19 ± 18.41 69 166 15 0 0 -603.84 ± 95.91
444168 ncm-dbt-01 585337 500 9 311 180 -243.0 ± 17.61 65 172 13 0 0 -629.41 ± 104.8
444167 ncm-dbt-02 584243 500 10 320 170 -251.89 ± 17.95 70 170 10 0 0 -676.04 ± 124.55
444166 ncm-dbt-03 588345 500 9 324 167 -257.59 ± 19.75 79 157 14 0 0 -616.18 ± 100.06
444165 ncm-dbt-04 561951 500 12 334 154 -265.77 ± 21.8 90 142 18 0 0 -571.09 ± 86.01
444164 ncm-dbt-01 581652 500 10 327 163 -259.9 ± 20.04 80 158 11 1 0 -629.43 ± 115.29
444163 ncm-dbt-05 580365 500 10 315 175 -246.3 ± 17.78 67 171 12 0 0 -643.67 ± 110.29
444162 ncm-dbt-02 586520 500 13 322 165 -250.76 ± 19.64 76 157 17 0 0 -581.38 ± 88.96
444161 ncm-dbt-03 588302 500 10 315 175 -246.3 ± 17.78 67 171 12 0 0 -643.67 ± 110.29
444160 ncm-dbt-01 583321 500 6 317 177 -253.02 ± 18.9 73 166 10 1 0 -643.7 ± 122.54
444159 ncm-dbt-04 567601 500 10 341 149 -276.68 ± 21.58 93 145 12 0 0 -643.67 ± 110.29
444158 ncm-dbt-05 584201 500 11 299 190 -228.07 ± 16.86 56 176 18 0 0 -571.09 ± 86.01
444157 ncm-dbt-02 585717 500 9 322 169 -255.29 ± 19.19 76 161 13 0 0 -629.41 ± 104.8
444156 ncm-dbt-03 585000 500 10 320 170 -251.89 ± 18.23 71 168 11 0 0 -659.13 ± 116.77
444155 ncm-dbt-01 582152 500 4 324 172 -263.41 ± 19.4 79 163 7 1 0 -694.74 ± 156.93
444154 ncm-dbt-04 565941 500 10 330 160 -263.41 ± 21.0 85 151 13 1 0 -603.86 ± 103.96
444153 ncm-dbt-03 585885 500 9 310 181 -241.91 ± 17.72 65 171 14 0 0 -616.18 ± 100.06
444152 ncm-dbt-05 580987 500 12 313 175 -241.91 ± 17.46 64 173 13 0 0 -629.41 ± 104.8
444151 ncm-dbt-02 586604 500 18 318 164 -240.82 ± 19.78 73 154 23 0 0 -526.7 ± 74.68
444150 ncm-dbt-01 583112 500 8 325 167 -259.9 ± 20.3 80 159 9 2 0 -629.43 ± 125.74
444149 ncm-dbt-03 585548 500 11 331 158 -263.41 ± 21.0 85 151 13 1 0 -603.86 ± 103.96
444148 ncm-dbt-04 570108 500 12 323 165 -253.02 ± 19.42 76 159 15 0 0 -603.84 ± 95.91
444147 ncm-dbt-05 586858 500 10 321 169 -253.02 ± 18.91 74 163 13 0 0 -629.41 ± 104.8
444146 ncm-dbt-02 587707 500 9 323 168 -256.44 ± 19.07 76 162 12 0 0 -643.67 ± 110.29
444145 ncm-dbt-04 568752 500 11 326 163 -257.59 ± 19.22 77 161 12 0 0 -643.67 ± 110.29
444144 ncm-dbt-01 581943 500 8 331 161 -266.97 ± 20.12 83 158 8 1 0 -676.08 ± 142.43
444143 ncm-dbt-05 582861 500 3 331 166 -272.99 ± 18.82 82 164 4 0 0 -837.28 ± 240.94
444142 ncm-dbt-02 586266 500 4 322 174 -261.07 ± 18.83 77 164 9 0 0 -694.7 ± 134.18
444141 ncm-dbt-03 581194 500 6 319 175 -255.29 ± 17.54 70 173 7 0 0 -739.05 ± 163.27
444140 ncm-dbt-04 567839 500 10 310 180 -240.82 ± 17.84 65 170 15 0 0 -603.84 ± 95.91
444139 ncm-dbt-03 587707 500 5 306 189 -241.91 ± 16.66 61 179 10 0 0 -676.04 ± 124.55
444138 ncm-dbt-02 583614 500 9 327 164 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
444137 ncm-dbt-01 585801 500 4 308 188 -245.2 ± 17.09 63 179 7 1 0 -694.74 ± 156.93
444136 ncm-dbt-05 581652 500 11 320 169 -250.76 ± 19.14 74 161 15 0 0 -603.84 ± 95.91

Commit

Commit ID 27b593a94477a821f80a041320683f805114d4a3
Author Joost VandeVondele
Date 2020-08-09 21:51:07 UTC
Fix a data race for NNUE the stateInfo at the rootPos is no longer read-only, as the NNUE accumulator is part of it. Threads can thus not share this object and need their own copy. tested for no regression https://tests.stockfishchess.org/tests/view/5f3022239081672066536bce LLR: 2.96 (-2.94,2.94) {-1.50,0.50} Total: 52800 W: 6843 L: 6802 D: 39155 Ptnml(0-2): 336, 4646, 16399, 4679, 340 closes https://github.com/official-stockfish/Stockfish/pull/2957 fixes https://github.com/official-stockfish/Stockfish/issues/2933 No functional change
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