Dev Builds » 20211208-1616

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 06:51:19 577652 3996 844 1178 1974 -29.11 ± 5.2 16 604 1078 298 2 -56.13 ± 10.31
ncm-dbt-02 06:51:22 585291 3996 832 1165 1999 -29.02 ± 5.16 4 629 1067 292 6 -58.81 ± 10.38
ncm-dbt-03 06:50:47 584162 4010 855 1227 1928 -32.32 ± 5.22 8 656 1045 292 4 -64.5 ± 10.5
ncm-dbt-04 06:51:55 569232 3998 820 1127 2051 -26.73 ± 5.24 11 609 1058 318 3 -52.36 ± 10.44
ncm-dbt-05 06:51:01 583185 4000 835 1183 1982 -30.3 ± 5.14 11 618 1082 286 3 -59.64 ± 10.29
20000 4186 5880 9934 -29.5 ± 2.32 50 3116 5330 1486 18 -58.28 ± 4.64

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
417462 ncm-dbt-03 582110 10 1 4 5 -107.43 ± 84.35 0 3 2 0 0 -240.65 ± 570.11
417461 ncm-dbt-02 587409 496 117 139 240 -15.42 ± 14.44 0 66 139 42 1 -32.31 ± 28.7
417460 ncm-dbt-04 569829 498 106 127 265 -14.66 ± 14.97 2 65 134 48 0 -26.56 ± 29.38
417459 ncm-dbt-01 578095 496 103 156 237 -37.27 ± 15.2 3 83 126 36 0 -71.02 ± 30.37
417458 ncm-dbt-05 583489 500 99 138 263 -27.16 ± 15.08 1 79 129 40 1 -54.65 ± 30.01
417457 ncm-dbt-03 584579 500 113 153 234 -27.85 ± 14.36 2 71 143 33 1 -54.65 ± 28.11
417456 ncm-dbt-02 585126 500 96 152 252 -39.08 ± 15.08 1 90 124 34 1 -79.17 ± 30.64
417455 ncm-dbt-05 581361 500 101 167 232 -46.13 ± 14.58 2 91 128 29 0 -90.97 ± 30.05
417454 ncm-dbt-04 570509 500 90 138 272 -33.46 ± 14.86 0 86 127 36 1 -68.99 ± 30.25
417453 ncm-dbt-01 579455 500 102 158 240 -39.08 ± 14.31 2 82 136 30 0 -76.25 ± 28.98
417452 ncm-dbt-03 582652 500 106 156 238 -34.86 ± 15.7 1 91 116 41 1 -70.44 ± 31.69
417451 ncm-dbt-05 582903 500 104 148 248 -30.65 ± 14.94 1 81 130 37 1 -61.79 ± 29.86
417450 ncm-dbt-02 584285 500 106 131 263 -17.39 ± 14.23 0 66 145 37 2 -37.67 ± 27.91
417449 ncm-dbt-01 579661 500 105 149 246 -30.65 ± 14.02 1 75 141 33 0 -60.36 ± 28.36
417448 ncm-dbt-04 569829 500 99 145 256 -32.05 ± 14.38 2 75 141 31 1 -63.23 ± 28.35
417447 ncm-dbt-03 585211 500 100 155 245 -38.37 ± 14.79 1 88 126 35 0 -76.25 ± 30.37
417446 ncm-dbt-02 586223 500 112 152 236 -27.85 ± 14.09 1 73 141 35 0 -54.65 ± 28.39
417445 ncm-dbt-01 575028 500 97 136 267 -27.16 ± 14.83 4 68 142 35 1 -50.38 ± 28.27
417444 ncm-dbt-04 567799 500 114 150 236 -25.06 ± 14.55 2 71 138 39 0 -47.55 ± 28.83
417443 ncm-dbt-05 583196 500 112 142 246 -20.87 ± 13.43 0 65 150 35 0 -41.89 ± 27.19
417442 ncm-dbt-03 584117 500 97 163 240 -46.13 ± 14.98 3 91 125 31 0 -89.48 ± 30.48
417441 ncm-dbt-04 569031 500 97 141 262 -30.65 ± 14.94 1 82 127 40 0 -60.36 ± 30.26
417440 ncm-dbt-01 576455 500 120 139 241 -13.21 ± 15.17 2 65 134 48 1 -25.06 ± 29.4
417439 ncm-dbt-05 583614 500 91 147 262 -39.08 ± 14.57 3 81 135 31 0 -74.79 ± 29.13
417438 ncm-dbt-02 584916 500 94 144 262 -34.86 ± 14.83 2 82 130 36 0 -67.55 ± 29.85
417437 ncm-dbt-03 584034 500 104 148 248 -30.65 ± 14.16 0 78 139 32 1 -63.23 ± 28.63
417436 ncm-dbt-04 567918 500 105 137 258 -22.26 ± 15.23 1 77 125 47 0 -43.3 ± 30.53
417435 ncm-dbt-01 577561 500 106 148 246 -29.25 ± 14.97 2 78 130 40 0 -56.07 ± 29.87
417434 ncm-dbt-05 580323 500 109 148 243 -27.15 ± 14.04 0 75 139 36 0 -54.65 ± 28.67
417433 ncm-dbt-02 585126 500 100 146 254 -32.06 ± 14.51 0 82 133 34 1 -66.1 ± 29.44
417432 ncm-dbt-03 583782 500 111 145 244 -23.66 ± 14.58 1 73 135 41 0 -46.13 ± 29.23
417431 ncm-dbt-05 584034 500 112 150 238 -26.45 ± 14.65 3 70 139 38 0 -48.96 ± 28.69
417430 ncm-dbt-04 570549 500 100 145 255 -31.35 ± 14.47 2 76 137 35 0 -60.36 ± 28.92
417429 ncm-dbt-02 584790 500 90 148 262 -40.49 ± 14.39 0 89 131 29 1 -83.57 ± 29.65
417428 ncm-dbt-01 576578 500 102 134 264 -22.27 ± 14.48 0 74 134 42 0 -44.72 ± 29.37
417427 ncm-dbt-03 584159 500 96 151 253 -38.37 ± 14.92 0 91 124 34 1 -79.17 ± 30.64
417426 ncm-dbt-04 568395 500 109 144 247 -24.36 ± 15.13 1 77 129 42 1 -48.96 ± 30.01
417425 ncm-dbt-03 586816 500 127 152 221 -17.39 ± 14.49 0 70 135 45 0 -34.86 ± 29.25
417424 ncm-dbt-02 584453 500 117 153 230 -25.06 ± 15.06 0 81 124 45 0 -50.38 ± 30.66
417423 ncm-dbt-01 578383 500 109 158 233 -34.16 ± 14.52 2 79 135 34 0 -66.1 ± 29.17
417422 ncm-dbt-05 586562 500 107 143 250 -25.06 ± 14.93 1 76 132 40 1 -50.38 ± 29.62

Commit

Commit ID 94514199123874c0029afb6e00634f26741d90db
Author Stefan Geschwentner
Date 2021-12-08 16:16:17 UTC
Improve transposition table remplacement strategy Increase chance that PV node replaces old entry in transposition table. STC: LLR: 2.93 (-2.94,2.94) <0.00,2.50> Total: 46744 W: 12108 L: 11816 D: 22820 Ptnml(0-2): 156, 5221, 12344, 5477, 174 https://tests.stockfishchess.org/tests/view/61ae068356fcf33bce7d99d0 LTC: LLR: 2.94 (-2.94,2.94) <0.50,3.00> Total: 88464 W: 22912 L: 22513 D: 43039 Ptnml(0-2): 84, 9133, 25393, 9544, 78 https://tests.stockfishchess.org/tests/view/61ae973656fcf33bce7db3e1 closes https://github.com/official-stockfish/Stockfish/pull/3839 Bench: 5292488
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