Dev Builds » 20200810-0914

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 06:32:57 583794 3990 66 2613 1311 -262.44 ± 6.98 644 1261 88 2 0 -650.82 ± 36.79
ncm-dbt-02 06:33:32 585135 4032 79 2557 1396 -248.85 ± 6.5 568 1344 103 0 1 -629.15 ± 33.94
ncm-dbt-03 06:31:42 585792 3994 86 2581 1327 -254.55 ± 6.86 611 1274 111 1 0 -614.35 ± 32.66
ncm-dbt-04 06:31:20 567615 4000 67 2624 1309 -262.97 ± 6.9 643 1271 86 0 0 -663.24 ± 37.23
ncm-dbt-05 06:33:15 581972 3984 69 2548 1367 -253.16 ± 6.72 591 1299 100 2 0 -628.72 ± 34.46
20000 367 12923 6710 -256.33 ± 3.04 3057 6449 488 5 1 -636.43 ± 15.45

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
461702 ncm-dbt-02 584579 32 0 19 13 -237.36 ± 71.34 4 11 1 0 0 -596.2 ± 399.72
461701 ncm-dbt-05 581277 484 2 309 173 -260.07 ± 18.2 71 165 6 0 0 -760.45 ± 187.93
461700 ncm-dbt-01 582193 490 12 326 152 -263.89 ± 22.39 88 139 17 1 0 -557.71 ± 88.67
461699 ncm-dbt-03 584537 494 12 313 169 -245.92 ± 19.92 73 156 17 1 0 -559.18 ± 88.68
461698 ncm-dbt-04 565941 500 11 324 165 -255.29 ± 19.46 77 159 14 0 0 -616.18 ± 100.06
461697 ncm-dbt-02 585379 500 9 314 177 -246.3 ± 17.78 67 171 12 0 0 -643.67 ± 110.29
461696 ncm-dbt-03 587113 500 10 328 162 -261.07 ± 19.92 81 156 13 0 0 -629.41 ± 104.8
461695 ncm-dbt-05 582903 500 11 329 160 -261.07 ± 21.21 85 149 15 1 0 -581.4 ± 95.42
461694 ncm-dbt-01 585042 500 7 333 160 -270.57 ± 20.0 85 156 9 0 0 -694.7 ± 134.18
461693 ncm-dbt-04 567878 500 5 337 158 -277.92 ± 20.89 91 150 9 0 0 -694.7 ± 134.18
461692 ncm-dbt-02 587452 500 9 320 171 -253.02 ± 18.37 72 167 11 0 0 -659.13 ± 116.77
461691 ncm-dbt-03 586943 500 11 318 171 -248.52 ± 19.35 74 159 17 0 0 -581.38 ± 88.96
461690 ncm-dbt-05 583112 500 10 330 160 -263.41 ± 20.48 83 155 11 1 0 -629.43 ± 115.29
461689 ncm-dbt-01 582569 500 9 316 175 -248.52 ± 18.06 69 169 12 0 0 -643.67 ± 110.29
461688 ncm-dbt-04 568673 500 9 331 160 -265.77 ± 19.41 81 160 9 0 0 -694.7 ± 134.18
461687 ncm-dbt-02 587707 500 13 306 181 -233.32 ± 17.34 60 173 17 0 0 -581.38 ± 88.96
461686 ncm-dbt-05 581070 500 12 321 167 -250.76 ± 19.89 77 155 18 0 0 -571.09 ± 86.01
461685 ncm-dbt-03 585464 500 8 320 172 -254.15 ± 18.52 73 166 11 0 0 -659.13 ± 116.77
461684 ncm-dbt-01 584076 500 8 331 161 -266.96 ± 20.12 84 155 11 0 0 -659.13 ± 116.77
461683 ncm-dbt-04 568077 500 7 338 155 -276.68 ± 20.45 89 153 8 0 0 -715.51 ± 146.53
461682 ncm-dbt-02 582068 500 11 320 169 -250.76 ± 19.14 74 161 15 0 0 -603.84 ± 95.91
461681 ncm-dbt-03 583824 500 8 331 161 -266.96 ± 20.12 84 155 11 0 0 -659.13 ± 116.77
461680 ncm-dbt-05 580489 500 9 308 183 -239.73 ± 17.44 63 173 14 0 0 -616.18 ± 100.06
461679 ncm-dbt-01 585421 500 12 325 163 -255.29 ± 19.19 76 161 13 0 0 -629.41 ± 104.8
461678 ncm-dbt-04 565154 500 12 318 170 -247.41 ± 18.7 71 164 15 0 0 -603.84 ± 95.91
461677 ncm-dbt-02 584495 500 7 319 174 -254.15 ± 18.52 73 166 11 0 0 -659.13 ± 116.77
461676 ncm-dbt-03 586223 500 16 314 170 -238.65 ± 18.55 67 164 19 0 0 -561.34 ± 83.33
461675 ncm-dbt-05 582694 500 10 313 177 -244.09 ± 18.52 69 165 16 0 0 -592.27 ± 92.24
461674 ncm-dbt-01 583950 500 4 331 165 -271.78 ± 19.57 84 159 7 0 0 -739.05 ± 163.27
461673 ncm-dbt-04 566533 500 10 327 163 -259.9 ± 19.51 79 159 12 0 0 -643.67 ± 110.29
461672 ncm-dbt-02 584622 500 10 318 172 -249.64 ± 18.47 71 166 13 0 0 -629.41 ± 104.8
461671 ncm-dbt-03 586646 500 12 326 162 -256.44 ± 19.34 77 160 13 0 0 -629.41 ± 104.8
461670 ncm-dbt-05 584369 500 9 330 161 -264.59 ± 19.82 82 157 11 0 0 -659.13 ± 116.77
461669 ncm-dbt-04 567799 500 7 323 170 -258.74 ± 19.09 77 162 11 0 0 -659.13 ± 116.77
461668 ncm-dbt-01 583070 500 9 334 157 -269.36 ± 21.48 89 148 12 1 0 -616.2 ± 109.19
461667 ncm-dbt-02 584790 500 11 312 177 -241.91 ± 18.73 66 171 12 0 1 -616.2 ± 109.19
461666 ncm-dbt-03 585590 500 9 331 160 -265.77 ± 19.69 82 158 10 0 0 -676.04 ± 124.55
461665 ncm-dbt-04 570869 500 6 326 168 -263.41 ± 18.84 78 164 8 0 0 -715.51 ± 146.53
461664 ncm-dbt-01 584034 500 5 317 178 -254.15 ± 17.4 69 174 7 0 0 -739.05 ± 163.27
461663 ncm-dbt-05 579868 500 6 308 186 -243.0 ± 16.52 61 180 9 0 0 -694.7 ± 134.18
461662 ncm-dbt-02 585126 500 9 329 162 -263.41 ± 19.68 81 158 11 0 0 -659.13 ± 116.77

Commit

Commit ID ad2ad4c65706c18a5383506d361f1f23fc6a26ab
Author SFisGOD
Date 2020-08-10 09:14:46 UTC
Modify castling extension Extend castling only if there are few friendly pieces on the castling side. Inspired by silversolver1's (Rahul Dsilva) test https://tests.stockfishchess.org/tests/view/5f0fef560640035f9d2978cf STC: LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 7096 W: 947 L: 818 D: 5331 Ptnml(0-2): 32, 604, 2181, 665, 66 https://tests.stockfishchess.org/tests/view/5f309f729081672066537426 LTC: LLR: 2.96 (-2.94,2.94) {0.25,1.75} Total: 4712 W: 300 L: 215 D: 4197 Ptnml(0-2): 2, 190, 1895, 259, 10 https://tests.stockfishchess.org/tests/view/5f30a2039081672066537430 closes https://github.com/official-stockfish/Stockfish/pull/2970 Bench: 4094850
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