Dev Builds » 20210614-1528

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 06:42:47 583086 4016 483 1678 1855 -106.61 ± 5.24 69 1141 715 82 1 -220.5 ± 12.73
ncm-dbt-02 06:42:11 585656 4006 452 1608 1946 -103.19 ± 5.21 59 1129 724 91 0 -213.69 ± 12.66
ncm-dbt-03 06:41:20 587227 4000 434 1642 1924 -108.3 ± 5.19 73 1133 724 69 1 -223.94 ± 12.63
ncm-dbt-04 06:42:18 566752 4000 444 1643 1913 -107.44 ± 5.29 74 1136 705 85 0 -221.14 ± 12.83
ncm-dbt-05 06:43:04 580700 3978 399 1597 1982 -107.98 ± 5.12 56 1162 695 76 0 -227.12 ± 12.92
20000 2212 8168 9620 -106.7 ± 2.33 331 5701 3563 403 2 -221.24 ± 5.7

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
452267 ncm-dbt-02 585253 6 1 3 2 -120.22 ± 109.7 0 2 1 0 0 -279.24 ± 576.89
452266 ncm-dbt-01 583405 16 1 7 8 -136.91 ± 96.12 0 7 0 1 0 -337.96 ± 547.75
452265 ncm-dbt-05 584369 478 55 196 227 -105.62 ± 14.3 5 139 87 8 0 -224.48 ± 36.66
452264 ncm-dbt-04 568912 500 58 199 243 -100.7 ± 14.62 6 141 91 12 0 -209.91 ± 35.92
452263 ncm-dbt-03 587155 500 62 207 231 -103.73 ± 14.8 12 128 103 7 0 -206.01 ± 33.36
452262 ncm-dbt-01 581402 500 60 218 222 -113.68 ± 15.15 13 140 89 8 0 -230.16 ± 36.26
452261 ncm-dbt-02 586097 500 56 205 239 -106.77 ± 14.21 6 146 89 9 0 -226.0 ± 36.29
452260 ncm-dbt-05 582193 500 47 205 248 -113.68 ± 14.69 8 152 80 10 0 -240.82 ± 38.39
452259 ncm-dbt-04 567284 500 52 212 236 -115.22 ± 15.46 14 141 86 9 0 -232.26 ± 36.96
452258 ncm-dbt-03 587113 500 51 210 239 -114.45 ± 15.31 12 145 83 10 0 -234.38 ± 37.67
452257 ncm-dbt-01 584537 500 52 209 239 -112.91 ± 14.54 11 141 92 6 0 -232.26 ± 35.5
452256 ncm-dbt-02 585169 500 57 195 248 -98.44 ± 13.34 4 136 104 6 0 -207.95 ± 33.1
452255 ncm-dbt-05 578794 500 48 195 257 -105.25 ± 14.35 7 142 92 9 0 -219.87 ± 35.65
452254 ncm-dbt-03 588217 500 64 209 227 -103.73 ± 14.8 6 146 85 13 0 -217.85 ± 37.2
452253 ncm-dbt-02 585801 500 61 212 227 -108.3 ± 14.68 4 157 75 14 0 -234.38 ± 39.52
452252 ncm-dbt-04 567284 500 50 206 244 -112.14 ± 15.15 11 144 85 10 0 -230.16 ± 37.2
452251 ncm-dbt-01 582903 500 76 207 217 -93.2 ± 14.95 7 131 98 14 0 -189.0 ± 34.56
452250 ncm-dbt-05 580447 500 55 191 254 -96.94 ± 15.44 9 133 93 15 0 -194.57 ± 35.52
452249 ncm-dbt-02 587452 500 60 205 235 -103.73 ± 14.8 8 140 91 11 0 -213.85 ± 35.9
452248 ncm-dbt-04 565587 500 52 209 239 -112.91 ± 14.85 8 152 79 11 0 -238.66 ± 38.63
452247 ncm-dbt-03 589112 500 47 203 250 -112.14 ± 14.38 10 142 92 6 0 -232.26 ± 35.5
452246 ncm-dbt-01 582193 500 54 205 241 -108.3 ± 14.37 6 149 85 10 0 -230.16 ± 37.2
452245 ncm-dbt-05 577520 500 54 200 246 -104.49 ± 13.71 5 143 95 7 0 -221.9 ± 34.93
452244 ncm-dbt-02 584537 500 52 190 258 -98.44 ± 14.89 7 137 93 13 0 -202.15 ± 35.52
452243 ncm-dbt-04 564723 500 52 196 252 -102.97 ± 14.79 9 136 95 10 0 -209.91 ± 35.06
452242 ncm-dbt-03 586689 500 50 201 249 -108.3 ± 14.37 8 143 91 8 0 -226.0 ± 35.82
452241 ncm-dbt-01 582068 500 60 211 229 -108.3 ± 15.43 8 149 80 12 1 -228.08 ± 38.34
452240 ncm-dbt-05 578383 500 59 197 244 -98.44 ± 13.98 3 143 93 11 0 -209.91 ± 35.49
452239 ncm-dbt-02 585084 500 51 211 238 -115.22 ± 15.0 10 150 80 10 0 -240.82 ± 38.39
452238 ncm-dbt-04 566888 500 63 209 228 -104.49 ± 14.96 9 139 91 11 0 -213.85 ± 35.9
452237 ncm-dbt-03 584201 500 55 204 241 -106.77 ± 14.82 9 141 90 10 0 -219.87 ± 36.1
452236 ncm-dbt-01 582903 500 61 208 231 -105.25 ± 14.66 8 141 91 10 0 -217.85 ± 35.89
452235 ncm-dbt-02 585674 500 59 198 243 -99.2 ± 15.89 11 133 90 16 0 -196.45 ± 36.11
452234 ncm-dbt-04 566533 500 63 209 228 -104.49 ± 14.66 7 143 89 11 0 -217.85 ± 36.33
452233 ncm-dbt-05 580033 500 41 207 252 -119.89 ± 14.35 9 155 79 7 0 -256.44 ± 38.62
452232 ncm-dbt-01 585126 500 61 202 237 -100.7 ± 14.77 10 130 101 9 0 -202.15 ± 33.85
452231 ncm-dbt-03 587240 500 54 208 238 -110.6 ± 14.38 8 146 88 8 0 -232.26 ± 36.48
452230 ncm-dbt-03 588089 500 51 200 249 -106.78 ± 14.67 8 142 92 7 1 -223.94 ± 35.61
452229 ncm-dbt-02 585843 500 55 189 256 -95.44 ± 14.99 9 128 101 12 0 -190.85 ± 33.97
452228 ncm-dbt-05 583866 500 40 206 254 -119.89 ± 14.83 10 155 76 9 0 -254.16 ± 39.42
452227 ncm-dbt-04 566809 500 54 203 243 -106.77 ± 15.12 10 140 89 11 0 -217.85 ± 36.33
452226 ncm-dbt-01 583237 500 58 211 231 -109.83 ± 14.69 6 153 79 12 0 -234.38 ± 38.61

Commit

Commit ID 4c4e104cadceae678668f1738b5ca6296b2b4ef8
Author J. Oster
Date 2021-06-14 15:28:30 UTC
Fix a rare case of wrong TB ranking of a root move leading to a 3-fold repetition. With this small fix a draw ranking and thus a draw score is being applied. This works for both, ranking by dtz or wdl tables. Fixes https://github.com/official-stockfish/Stockfish/issues/3542 (No functional change without TBs.) Bench: 4877339
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