Dev Builds » 20210614-0922

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 06:41:19 584475 4000 419 1639 1942 -109.45 ± 5.2 69 1158 698 74 1 -228.08 ± 12.89
ncm-dbt-02 06:40:33 586817 4000 448 1627 1925 -105.54 ± 5.14 48 1172 692 87 1 -222.92 ± 12.95
ncm-dbt-03 06:42:13 585554 4000 418 1647 1935 -110.31 ± 5.15 60 1187 675 78 0 -232.53 ± 13.11
ncm-dbt-04 06:42:18 568015 4000 423 1616 1961 -106.87 ± 4.99 56 1141 743 60 0 -224.2 ± 12.44
ncm-dbt-05 06:42:47 581543 4000 468 1644 1888 -105.25 ± 5.17 62 1131 729 77 1 -218.61 ± 12.6
20000 2176 8173 9651 -107.48 ± 2.29 295 5789 3537 376 3 -225.23 ± 5.72

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
454507 ncm-dbt-03 585295 500 49 210 241 -116.0 ± 14.37 8 153 81 8 0 -247.41 ± 38.13
454506 ncm-dbt-04 565508 500 41 210 249 -122.24 ± 13.3 7 158 82 3 0 -268.17 ± 37.61
454505 ncm-dbt-05 581735 500 62 200 238 -98.44 ± 15.03 9 132 97 12 0 -198.34 ± 34.72
454504 ncm-dbt-02 585084 500 57 205 238 -106.01 ± 14.67 5 150 84 10 1 -228.08 ± 37.44
454503 ncm-dbt-01 585464 500 64 206 230 -101.46 ± 14.63 6 142 90 12 0 -211.87 ± 36.13
454502 ncm-dbt-03 584748 500 49 201 250 -109.07 ± 14.21 7 146 89 8 0 -230.16 ± 36.26
454501 ncm-dbt-04 568236 500 60 203 237 -102.22 ± 13.7 6 137 101 6 0 -213.85 ± 33.67
454500 ncm-dbt-05 580945 500 53 202 245 -106.78 ± 15.27 10 140 90 9 1 -219.87 ± 36.1
454499 ncm-dbt-01 585253 500 51 209 240 -113.68 ± 14.22 8 149 86 7 0 -240.82 ± 36.9
454498 ncm-dbt-02 587579 500 58 198 244 -99.95 ± 14.15 3 146 89 12 0 -213.85 ± 36.34
454497 ncm-dbt-03 581194 500 44 217 239 -125.38 ± 14.79 11 159 72 8 0 -268.17 ± 40.54
454496 ncm-dbt-05 581735 500 54 221 225 -120.67 ± 13.84 9 153 84 4 0 -258.75 ± 37.2
454495 ncm-dbt-04 566849 500 45 192 263 -105.25 ± 14.66 6 147 85 12 0 -221.9 ± 37.21
454494 ncm-dbt-01 582861 500 45 208 247 -117.55 ± 14.2 8 154 81 7 0 -251.89 ± 38.11
454493 ncm-dbt-02 587282 500 53 205 242 -109.07 ± 13.56 4 151 88 7 0 -236.51 ± 36.44
454492 ncm-dbt-03 586562 500 58 197 245 -99.2 ± 14.6 4 145 87 14 0 -209.91 ± 36.75
454491 ncm-dbt-05 577438 500 73 201 226 -90.96 ± 14.62 7 126 105 12 0 -183.51 ± 33.24
454490 ncm-dbt-04 569151 500 54 196 250 -101.46 ± 14.01 6 138 98 8 0 -211.87 ± 34.38
454489 ncm-dbt-01 583531 500 45 203 252 -113.68 ± 14.85 9 149 84 7 1 -240.82 ± 37.4
454488 ncm-dbt-02 586985 500 68 210 222 -101.46 ± 15.92 13 130 93 14 0 -198.34 ± 35.52
454487 ncm-dbt-03 585211 500 51 204 245 -109.83 ± 15.29 8 151 77 14 0 -230.16 ± 39.03
454486 ncm-dbt-02 586774 500 64 196 240 -93.95 ± 14.96 5 138 91 16 0 -194.57 ± 35.91
454485 ncm-dbt-05 582569 500 49 205 246 -112.14 ± 14.69 9 147 85 9 0 -234.38 ± 37.19
454484 ncm-dbt-04 568236 500 58 206 236 -106.01 ± 15.12 8 145 84 13 0 -219.87 ± 37.42
454483 ncm-dbt-01 585000 500 44 200 256 -112.14 ± 13.89 8 145 92 5 0 -236.51 ± 35.43
454482 ncm-dbt-02 585590 500 60 204 236 -102.97 ± 14.49 6 143 90 11 0 -215.85 ± 36.11
454481 ncm-dbt-03 587919 500 56 202 242 -104.49 ± 14.5 6 145 88 11 0 -219.87 ± 36.54
454480 ncm-dbt-05 583656 500 62 209 229 -105.25 ± 14.35 9 136 98 7 0 -215.85 ± 34.33
454479 ncm-dbt-04 569390 500 68 203 229 -96.19 ± 13.64 6 129 109 6 0 -198.34 ± 32.19
454478 ncm-dbt-01 584117 500 60 204 236 -102.97 ± 15.66 10 139 86 15 0 -207.95 ± 36.95
454477 ncm-dbt-02 586858 500 47 206 247 -114.45 ± 14.85 8 154 77 11 0 -243.0 ± 39.13
454476 ncm-dbt-05 580738 500 51 205 244 -110.6 ± 14.22 5 154 81 10 0 -238.66 ± 38.15
454475 ncm-dbt-03 586139 500 56 207 237 -108.3 ± 14.83 9 143 88 10 0 -223.94 ± 36.53
454474 ncm-dbt-04 568872 500 51 204 245 -109.83 ± 13.89 8 142 95 5 0 -230.16 ± 34.79
454473 ncm-dbt-01 584411 500 48 212 240 -118.33 ± 14.52 12 145 88 5 0 -245.2 ± 36.32
454472 ncm-dbt-02 588387 500 41 203 256 -116.77 ± 13.36 4 160 80 6 0 -258.75 ± 38.32
454471 ncm-dbt-04 567878 500 46 202 252 -112.14 ± 14.38 9 145 89 7 0 -234.38 ± 36.22
454470 ncm-dbt-03 587367 500 55 209 236 -110.6 ± 13.73 7 145 93 5 0 -234.38 ± 35.22
454469 ncm-dbt-05 583531 500 64 201 235 -97.69 ± 14.58 4 143 89 14 0 -206.01 ± 36.33
454468 ncm-dbt-01 585169 500 62 197 241 -96.19 ± 15.43 8 135 91 16 0 -194.57 ± 35.91

Commit

Commit ID 900f249f596417b35129f1dc357cd5392018e575
Author Tomasz Sobczyk
Date 2021-06-14 09:22:08 UTC
Reduce the number of accumulator states Reduce from 3 to 2. Make the intent of the states clearer. STC: https://tests.stockfishchess.org/tests/view/60c50111457376eb8bcaad03 LLR: 2.95 (-2.94,2.94) <-2.50,0.50> Total: 61888 W: 5007 L: 4944 D: 51937 Ptnml(0-2): 164, 3947, 22649, 4030, 154 LTC: https://tests.stockfishchess.org/tests/view/60c52b1c457376eb8bcaad2c LLR: 2.94 (-2.94,2.94) <-2.50,0.50> Total: 20248 W: 688 L: 618 D: 18942 Ptnml(0-2): 7, 551, 8946, 605, 15 closes https://github.com/official-stockfish/Stockfish/pull/3548 No functional change.
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