Dev Builds » 20200621-1339

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 06:29:03 582911 4000 58 2526 1416 -250.2 ± 6.36 555 1359 85 1 0 -661.2 ± 37.47
ncm-dbt-02 06:28:52 586703 4000 61 2564 1375 -255.16 ± 6.6 592 1320 87 1 0 -657.16 ± 37.02
ncm-dbt-03 06:27:45 586472 4000 60 2610 1330 -261.95 ± 6.74 627 1296 77 0 0 -682.85 ± 39.42
ncm-dbt-04 06:29:32 568216 4014 63 2572 1379 -254.76 ± 6.6 595 1319 93 0 0 -649.96 ± 35.76
ncm-dbt-05 06:29:41 582688 3986 65 2535 1386 -251.71 ± 6.58 572 1331 85 5 0 -644.94 ± 37.33
20000 307 12807 6886 -254.73 ± 2.94 2941 6625 427 7 0 -658.76 ± 16.52

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
450615 ncm-dbt-04 568832 14 0 10 4 -310.89 ± 151.57 3 4 0 0 0 -1199.83 ± 201.74
450614 ncm-dbt-05 583824 486 9 323 154 -267.02 ± 21.61 85 145 12 1 0 -611.13 ± 109.17
450613 ncm-dbt-01 584537 500 10 317 173 -248.52 ± 18.59 70 168 11 1 0 -629.43 ± 115.29
450612 ncm-dbt-02 587070 500 8 317 175 -250.76 ± 18.62 72 165 13 0 0 -629.41 ± 104.8
450611 ncm-dbt-03 587240 500 5 319 176 -256.44 ± 17.97 72 170 8 0 0 -715.51 ± 146.53
450610 ncm-dbt-04 567918 500 8 317 175 -250.76 ± 18.62 72 165 13 0 0 -629.41 ± 104.8
450609 ncm-dbt-05 576741 500 13 318 169 -246.3 ± 19.79 73 161 14 2 0 -571.11 ± 97.59
450608 ncm-dbt-01 580489 500 10 303 187 -233.32 ± 17.34 60 173 17 0 0 -581.38 ± 88.96
450607 ncm-dbt-03 588004 500 9 327 164 -261.07 ± 19.11 78 162 10 0 0 -676.04 ± 124.55
450606 ncm-dbt-02 587962 500 11 322 167 -253.02 ± 18.91 74 163 13 0 0 -629.41 ± 104.8
450605 ncm-dbt-04 570068 500 6 305 189 -239.73 ± 16.37 59 181 10 0 0 -676.04 ± 124.55
450604 ncm-dbt-05 582819 500 8 318 174 -251.89 ± 18.76 72 167 10 1 0 -643.7 ± 122.54
450603 ncm-dbt-01 584034 500 10 325 165 -257.59 ± 19.22 77 161 12 0 0 -643.67 ± 110.29
450602 ncm-dbt-02 586562 500 5 317 178 -254.15 ± 17.68 70 172 8 0 0 -715.51 ± 146.53
450601 ncm-dbt-03 586646 500 3 337 160 -280.42 ± 19.69 88 158 4 0 0 -837.28 ± 240.94
450600 ncm-dbt-04 568077 500 6 319 175 -255.29 ± 18.11 72 169 9 0 0 -694.7 ± 134.18
450599 ncm-dbt-05 582819 500 5 315 180 -251.89 ± 17.4 68 174 8 0 0 -715.51 ± 146.53
450598 ncm-dbt-01 584537 500 5 316 179 -253.02 ± 17.82 70 171 9 0 0 -694.7 ± 134.18
450597 ncm-dbt-02 586223 500 13 316 171 -244.09 ± 18.52 69 165 16 0 0 -592.27 ± 92.24
450596 ncm-dbt-03 587240 500 7 323 170 -258.74 ± 19.36 78 160 12 0 0 -643.67 ± 110.29
450595 ncm-dbt-04 566138 500 5 333 162 -272.99 ± 20.58 88 152 10 0 0 -676.04 ± 124.55
450594 ncm-dbt-05 581985 500 5 315 180 -251.89 ± 17.4 68 174 8 0 0 -715.51 ± 146.53
450593 ncm-dbt-02 588600 500 5 333 162 -273.0 ± 20.85 88 153 8 1 0 -676.08 ± 142.43
450592 ncm-dbt-01 581902 500 5 319 176 -256.44 ± 17.69 71 172 7 0 0 -739.05 ± 163.27
450591 ncm-dbt-03 581818 500 10 332 158 -265.77 ± 19.97 83 156 11 0 0 -659.13 ± 116.77
450590 ncm-dbt-04 567126 500 8 322 170 -256.44 ± 18.8 75 164 11 0 0 -659.13 ± 116.77
450589 ncm-dbt-05 584706 500 10 315 175 -246.3 ± 18.04 68 169 13 0 0 -629.41 ± 104.8
450588 ncm-dbt-02 587579 500 8 319 173 -253.02 ± 17.82 70 171 9 0 0 -694.7 ± 134.18
450587 ncm-dbt-03 587282 500 9 310 181 -241.91 ± 16.93 62 177 11 0 0 -659.13 ± 116.77
450586 ncm-dbt-01 582819 500 6 312 182 -247.41 ± 16.82 64 178 8 0 0 -715.51 ± 146.53
450585 ncm-dbt-04 566928 500 9 325 166 -258.74 ± 19.09 77 162 11 0 0 -659.13 ± 116.77
450584 ncm-dbt-05 583614 500 7 316 177 -250.76 ± 18.35 70 170 9 1 0 -659.17 ± 131.36
450583 ncm-dbt-01 583154 500 3 323 174 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
450582 ncm-dbt-03 586181 500 9 330 161 -264.59 ± 19.55 81 159 10 0 0 -676.04 ± 124.55
450581 ncm-dbt-02 586308 500 5 329 166 -268.16 ± 20.26 85 154 11 0 0 -659.13 ± 116.77
450580 ncm-dbt-04 569470 500 8 319 173 -253.02 ± 18.91 74 163 13 0 0 -629.41 ± 104.8
450579 ncm-dbt-05 585000 500 8 315 177 -248.52 ± 17.79 68 171 11 0 0 -659.13 ± 116.77
450578 ncm-dbt-02 583321 500 6 311 183 -246.3 ± 16.96 64 177 9 0 0 -694.7 ± 134.18
450577 ncm-dbt-03 587367 500 8 332 160 -268.16 ± 20.26 85 154 11 0 0 -659.13 ± 116.77
450576 ncm-dbt-01 581818 500 9 311 180 -243.0 ± 17.61 65 172 13 0 0 -629.41 ± 104.8
450575 ncm-dbt-04 569390 500 13 322 165 -250.76 ± 19.39 75 159 16 0 0 -592.27 ± 92.24

Commit

Commit ID 8a3f155b1cc1175b33ddc97d0572b5557269b0fa
Author protonspring
Date 2020-06-21 13:39:00 UTC
Make endgames consistent Changes variable names and occasionally consolidated variable declarations. Piece squares are consistently prefixed with "weak" or "strong." passed STC LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 29008 W: 5532 L: 5416 D: 18060 Ptnml(0-2): 355, 2983, 7723, 3077, 366 https://tests.stockfishchess.org/tests/view/5eea88d3563bc7aa75600689 closes https://github.com/official-stockfish/Stockfish/pull/2752 No functional change
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