Dev Builds » 20200628-2000

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 06:28:36 583869 4000 62 2576 1362 -256.73 ± 6.73 607 1302 89 2 0 -649.34 ± 36.58
ncm-dbt-02 06:29:35 585605 3998 63 2547 1388 -252.63 ± 6.55 579 1327 92 1 0 -647.35 ± 35.97
ncm-dbt-03 06:29:22 585501 4006 77 2582 1347 -254.91 ± 6.77 606 1295 100 2 0 -629.7 ± 34.46
ncm-dbt-04 06:29:36 567460 4000 59 2605 1336 -261.36 ± 6.78 626 1296 76 2 0 -676.08 ± 39.67
ncm-dbt-05 06:29:05 583871 3996 78 2579 1339 -255.23 ± 6.7 601 1299 98 0 0 -639.84 ± 34.81
20000 339 12889 6772 -256.16 ± 3.0 3019 6519 455 7 0 -647.82 ± 16.0

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
462829 ncm-dbt-03 585379 6 0 2 4 -120.22 ± 109.7 0 2 1 0 0 -279.24 ± 576.89
462828 ncm-dbt-05 584832 496 8 307 181 -242.35 ± 16.24 59 181 8 0 0 -714.09 ± 146.52
462827 ncm-dbt-02 586646 498 12 311 175 -241.04 ± 17.66 64 171 14 0 0 -615.46 ± 100.05
462826 ncm-dbt-04 568713 500 5 325 170 -263.41 ± 18.55 77 166 7 0 0 -739.05 ± 163.27
462825 ncm-dbt-03 586181 500 7 329 164 -265.77 ± 19.13 80 162 8 0 0 -715.51 ± 146.53
462824 ncm-dbt-01 583656 500 10 320 170 -251.89 ± 19.28 75 160 15 0 0 -603.84 ± 95.91
462823 ncm-dbt-05 581444 500 12 321 167 -250.76 ± 19.39 75 159 16 0 0 -592.27 ± 92.24
462822 ncm-dbt-02 586054 500 5 327 168 -265.78 ± 19.41 80 163 6 1 0 -715.55 ± 177.2
462821 ncm-dbt-04 568912 500 7 342 151 -281.67 ± 21.34 94 147 9 0 0 -694.7 ± 134.18
462820 ncm-dbt-01 584453 500 13 313 174 -240.82 ± 18.34 67 166 17 0 0 -581.38 ± 88.96
462819 ncm-dbt-03 585295 500 17 327 156 -251.89 ± 21.0 81 149 19 1 0 -543.25 ± 83.19
462818 ncm-dbt-02 585506 500 7 311 182 -245.19 ± 17.9 67 170 13 0 0 -629.41 ± 104.8
462817 ncm-dbt-05 581319 500 10 322 168 -254.15 ± 18.78 74 164 12 0 0 -643.67 ± 110.29
462816 ncm-dbt-03 585928 500 7 325 168 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
462815 ncm-dbt-01 581111 500 4 332 164 -273.0 ± 20.29 86 157 6 1 0 -715.55 ± 177.2
462814 ncm-dbt-04 568514 500 8 316 176 -249.64 ± 17.39 67 174 9 0 0 -694.7 ± 134.18
462813 ncm-dbt-02 586901 500 10 329 161 -262.24 ± 19.8 81 157 12 0 0 -643.67 ± 110.29
462812 ncm-dbt-05 584327 500 14 322 164 -249.64 ± 19.99 77 154 19 0 0 -561.34 ± 83.33
462811 ncm-dbt-01 585169 500 8 330 162 -265.78 ± 19.97 82 159 8 1 0 -676.08 ± 142.43
462810 ncm-dbt-04 567958 500 9 327 164 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
462809 ncm-dbt-03 586097 500 4 320 176 -258.74 ± 17.98 73 170 7 0 0 -739.05 ± 163.27
462808 ncm-dbt-05 585759 500 9 327 164 -261.07 ± 19.38 79 160 11 0 0 -659.13 ± 116.77
462807 ncm-dbt-02 581943 500 2 316 182 -256.44 ± 17.69 71 172 7 0 0 -739.05 ± 163.27
462806 ncm-dbt-04 566178 500 7 331 162 -268.16 ± 20.54 85 155 9 1 0 -659.17 ± 131.36
462805 ncm-dbt-01 582778 500 2 315 183 -255.29 ± 17.25 69 175 6 0 0 -766.17 ± 188.02
462804 ncm-dbt-03 584664 500 5 321 174 -258.74 ± 18.54 75 166 9 0 0 -694.7 ± 134.18
462803 ncm-dbt-05 584076 500 12 312 176 -240.82 ± 18.34 67 166 17 0 0 -581.38 ± 88.96
462802 ncm-dbt-02 586054 500 11 323 166 -254.15 ± 19.05 75 162 13 0 0 -629.41 ± 104.8
462801 ncm-dbt-04 565154 500 6 324 170 -261.07 ± 19.65 79 161 9 1 0 -659.17 ± 131.36
462800 ncm-dbt-01 584958 500 9 324 167 -257.59 ± 19.49 78 159 13 0 0 -629.41 ± 104.8
462799 ncm-dbt-03 585211 500 11 318 171 -248.52 ± 19.1 73 161 16 0 0 -592.27 ± 92.24
462798 ncm-dbt-05 586308 500 8 324 168 -258.74 ± 18.54 75 166 9 0 0 -694.7 ± 134.18
462797 ncm-dbt-02 587367 500 5 323 172 -261.07 ± 18.83 77 164 9 0 0 -694.7 ± 134.18
462796 ncm-dbt-03 584790 500 13 317 170 -245.19 ± 18.67 70 164 16 0 0 -592.27 ± 92.24
462795 ncm-dbt-04 565823 500 7 331 162 -268.16 ± 19.99 84 156 10 0 0 -676.04 ± 124.55
462794 ncm-dbt-01 585885 500 11 316 173 -246.3 ± 18.81 71 163 16 0 0 -592.27 ± 92.24
462793 ncm-dbt-05 582903 500 5 344 151 -286.77 ± 21.05 95 149 6 0 0 -766.17 ± 188.02
462792 ncm-dbt-02 584369 500 11 307 182 -236.51 ± 18.01 64 168 18 0 0 -571.09 ± 86.01
462791 ncm-dbt-03 585970 500 13 323 164 -251.89 ± 19.53 75 161 13 1 0 -603.86 ± 103.96
462790 ncm-dbt-01 582945 500 5 326 169 -264.59 ± 18.98 79 163 8 0 0 -715.51 ± 146.53
462789 ncm-dbt-04 568434 500 10 309 181 -239.73 ± 16.91 61 177 12 0 0 -643.67 ± 110.29

Commit

Commit ID 547c4a216a9931e4d5ff95414f146cb6eb877611
Author mstembera
Date 2020-06-28 20:00:19 UTC
Remove old zobrist trick for castling rights Removes an 8 year old micro optimization aimed at 32-bit architectures because back then doing an xor of a Key could not be done in one instruction. See original commit here 821e1c7 STC https://tests.stockfishchess.org/tests/view/5ef5833dde213bf647527d0c LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 162648 W: 31053 L: 31097 D: 100498 Ptnml(0-2): 2841, 18966, 37715, 19000, 2802 LTC https://tests.stockfishchess.org/tests/view/5ef7b1bbf993893290cc1489 LLR: 2.93 (-2.94,2.94) {-1.50,0.50} Total: 62360 W: 7617 L: 7586 D: 47157 Ptnml(0-2): 423, 5662, 18994, 5663, 438 closes https://github.com/official-stockfish/Stockfish/pull/2775 bench: 4591425
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