Dev Builds » 20200514-1835

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 06:28:10 581299 4028 70 2596 1362 -255.93 ± 6.78 615 1298 99 2 0 -632.4 ± 34.64
ncm-dbt-02 06:27:23 584280 4004 61 2623 1320 -263.33 ± 6.95 649 1264 89 0 0 -657.33 ± 36.58
ncm-dbt-03 06:27:00 587437 3988 63 2585 1340 -258.98 ± 6.74 613 1297 83 1 0 -664.79 ± 37.93
ncm-dbt-04 06:28:28 566274 4002 66 2583 1353 -256.98 ± 6.68 605 1308 87 1 0 -657.25 ± 37.02
ncm-dbt-05 06:25:55 580209 3978 58 2583 1337 -260.34 ± 6.9 627 1274 85 3 0 -652.23 ± 37.43
20000 318 12970 6712 -259.1 ± 3.04 3109 6441 443 7 0 -652.43 ± 16.22

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
451099 ncm-dbt-05 582402 30 0 20 10 -279.44 ± 77.66 5 10 0 0 0 -1199.83 ± 135.09
451098 ncm-dbt-02 584117 36 1 21 14 -217.55 ± 78.89 5 10 3 0 0 -416.44 ± 461.89
451097 ncm-dbt-03 583782 52 0 36 16 -296.07 ± 74.56 11 14 1 0 0 -682.68 ± 355.05
451096 ncm-dbt-04 566849 52 3 32 17 -218.65 ± 56.92 6 17 3 0 0 -485.11 ± 426.17
451095 ncm-dbt-01 584706 58 0 40 18 -294.3 ± 59.97 11 18 0 0 0 -1199.83 ± 77.64
451094 ncm-dbt-05 581028 500 7 328 165 -264.59 ± 19.82 82 157 11 0 0 -659.13 ± 116.77
451093 ncm-dbt-03 585759 500 6 331 163 -269.36 ± 19.57 83 159 8 0 0 -715.51 ± 146.53
451092 ncm-dbt-02 586985 500 7 324 169 -259.9 ± 18.12 74 169 7 0 0 -739.05 ± 163.27
451091 ncm-dbt-01 584453 500 6 332 162 -270.57 ± 20.0 85 156 9 0 0 -694.7 ± 134.18
451090 ncm-dbt-04 568554 500 6 321 173 -257.59 ± 18.4 74 167 9 0 0 -694.7 ± 134.18
451089 ncm-dbt-05 579496 500 8 321 171 -255.3 ± 19.71 77 160 12 1 0 -616.2 ± 109.19
451088 ncm-dbt-03 588047 500 9 326 165 -259.9 ± 18.97 77 163 10 0 0 -676.04 ± 124.55
451087 ncm-dbt-01 582694 500 12 327 161 -257.59 ± 20.51 82 151 17 0 0 -581.38 ± 88.96
451086 ncm-dbt-02 586689 500 15 331 154 -258.74 ± 20.66 83 150 17 0 0 -581.38 ± 88.96
451085 ncm-dbt-04 568474 500 15 317 168 -243.0 ± 19.36 72 158 20 0 0 -552.07 ± 80.89
451084 ncm-dbt-03 586520 500 5 318 177 -255.29 ± 18.93 75 163 12 0 0 -643.67 ± 110.29
451083 ncm-dbt-02 580821 500 8 330 162 -265.77 ± 19.69 82 158 10 0 0 -676.04 ± 124.55
451082 ncm-dbt-05 578054 500 7 325 168 -261.07 ± 19.66 80 158 12 0 0 -643.67 ± 110.29
451081 ncm-dbt-01 582527 500 6 309 185 -244.09 ± 17.75 66 171 13 0 0 -629.41 ± 104.8
451080 ncm-dbt-04 567363 500 8 324 168 -258.74 ± 19.36 78 160 12 0 0 -643.67 ± 110.29
451079 ncm-dbt-03 594932 500 9 324 167 -257.59 ± 18.95 76 163 11 0 0 -659.13 ± 116.77
451078 ncm-dbt-02 570148 500 8 336 156 -272.99 ± 20.85 89 150 11 0 0 -659.13 ± 116.77
451077 ncm-dbt-05 573284 500 14 320 166 -247.41 ± 18.7 71 164 15 0 0 -603.84 ± 95.91
451075 ncm-dbt-01 570909 500 11 326 163 -257.59 ± 20.01 80 155 15 0 0 -603.84 ± 95.91
451072 ncm-dbt-04 550125 500 4 328 168 -268.16 ± 19.13 81 162 7 0 0 -739.05 ± 163.27
451071 ncm-dbt-03 587622 436 9 275 152 -246.35 ± 18.89 58 150 10 0 0 -651.73 ± 124.36
451070 ncm-dbt-05 584327 448 5 294 149 -266.42 ± 20.58 72 146 5 1 0 -719.74 ± 208.53
451069 ncm-dbt-04 568633 450 9 285 156 -248.15 ± 19.37 63 150 12 0 0 -624.89 ± 110.17
451068 ncm-dbt-02 586816 468 3 295 170 -254.11 ± 18.44 66 160 8 0 0 -703.82 ± 146.41
451067 ncm-dbt-01 582318 470 8 303 159 -256.25 ± 19.57 70 156 8 1 0 -665.1 ± 142.36
451066 ncm-dbt-03 586943 500 8 325 167 -259.9 ± 19.24 78 161 11 0 0 -659.13 ± 116.77
451065 ncm-dbt-05 581527 500 5 312 183 -248.52 ± 18.06 69 169 12 0 0 -643.67 ± 110.29
451064 ncm-dbt-02 588047 500 7 321 172 -256.44 ± 19.6 78 158 14 0 0 -616.18 ± 100.06
451063 ncm-dbt-01 581610 500 9 317 174 -249.64 ± 18.73 72 164 14 0 0 -616.18 ± 100.06
451062 ncm-dbt-04 566651 500 7 328 165 -264.59 ± 19.55 81 159 10 0 0 -676.04 ± 124.55
451061 ncm-dbt-03 586350 500 9 329 162 -263.41 ± 20.21 82 157 10 1 0 -643.7 ± 122.54
451060 ncm-dbt-05 580157 500 8 332 160 -268.16 ± 20.54 86 152 12 0 0 -643.67 ± 110.29
451059 ncm-dbt-04 569909 500 6 317 177 -253.02 ± 17.82 69 174 6 1 0 -715.55 ± 177.2
451058 ncm-dbt-01 581985 500 6 319 175 -255.3 ± 18.66 73 168 8 1 0 -676.08 ± 142.43
451057 ncm-dbt-02 587367 500 7 326 167 -262.24 ± 19.8 81 157 12 0 0 -643.67 ± 110.29
451056 ncm-dbt-05 581610 500 4 331 165 -271.78 ± 20.15 85 158 6 1 0 -715.55 ± 177.2
451055 ncm-dbt-01 580489 500 12 323 165 -253.02 ± 19.42 76 159 15 0 0 -603.84 ± 95.91
451054 ncm-dbt-03 586985 500 8 321 171 -255.29 ± 18.39 73 167 10 0 0 -676.04 ± 124.55
451053 ncm-dbt-04 569909 500 8 331 161 -266.96 ± 19.28 81 161 8 0 0 -715.51 ± 146.53
451052 ncm-dbt-02 587537 500 5 339 156 -280.42 ± 20.6 91 152 7 0 0 -739.05 ± 163.27

Commit

Commit ID beb327f910ed782f358d69201643ccd99b982a48
Author Sami Kiminki
Date 2020-05-14 18:35:40 UTC
Fix a Windows-only crash on exit without 'quit' There was a bug in commit d4763424d2728fe2dfd0a6fe747666feb6a2fdbb (Add support for Windows large pages) that could result in trying to free memory allocated with VirtualAlloc incorrectly with free(). Fix this by reverting the TT.resize(0) logic in the previous commit, and instead, just call aligned_ttmem_free() in TranspositionTable::~TranspositionTable(). fixes https://github.com/official-stockfish/Stockfish/issues/2677 closes https://github.com/official-stockfish/Stockfish/pull/2679 No functional change
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