Dev Builds » 20211221-1242

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 06:52:54 582530 4016 866 1160 1990 -25.48 ± 5.1 3 605 1085 313 2 -51.06 ± 10.28
ncm-dbt-02 06:52:04 586568 4000 880 1173 1947 -25.5 ± 5.15 2 609 1074 310 5 -51.8 ± 10.34
ncm-dbt-03 06:51:43 584546 4000 872 1182 1946 -26.98 ± 5.21 0 639 1034 325 2 -54.65 ± 10.57
ncm-dbt-04 06:51:33 566542 4000 860 1167 1973 -26.72 ± 5.22 3 627 1049 316 5 -54.11 ± 10.49
ncm-dbt-05 06:52:23 581383 3984 866 1166 1952 -26.21 ± 5.19 3 619 1046 323 1 -52.37 ± 10.5
20000 4344 5848 9808 -26.18 ± 2.31 11 3099 5288 1587 15 -52.8 ± 4.67

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
434407 ncm-dbt-01 584664 16 4 4 8 0.0 ± 86.96 0 2 4 2 0 -0.0 ± 186.24
434406 ncm-dbt-05 578712 484 108 136 240 -20.12 ± 15.39 0 75 120 47 0 -40.38 ± 31.17
434405 ncm-dbt-03 581319 500 104 159 237 -38.37 ± 13.58 0 82 141 27 0 -77.71 ± 28.25
434404 ncm-dbt-02 583782 500 103 142 255 -27.16 ± 14.95 1 77 134 36 2 -56.07 ± 29.34
434403 ncm-dbt-04 567205 500 111 147 242 -25.06 ± 15.67 2 78 126 42 2 -50.38 ± 30.4
434402 ncm-dbt-01 583112 500 103 145 252 -29.25 ± 14.84 0 83 126 41 0 -58.93 ± 30.4
434401 ncm-dbt-05 583028 500 112 152 236 -27.85 ± 14.49 1 76 135 38 0 -54.65 ± 29.21
434400 ncm-dbt-03 584453 500 119 136 245 -11.82 ± 15.43 0 72 124 53 1 -25.06 ± 30.66
434399 ncm-dbt-02 582987 500 119 153 228 -23.66 ± 14.45 0 74 137 38 1 -48.96 ± 28.96
434398 ncm-dbt-04 564880 500 95 149 256 -37.67 ± 15.25 0 93 119 37 1 -77.71 ± 31.31
434397 ncm-dbt-01 578671 500 113 139 248 -18.08 ± 14.67 0 71 135 43 1 -37.67 ± 29.25
434396 ncm-dbt-03 583782 500 104 147 249 -29.95 ± 15.02 0 85 123 42 0 -60.36 ± 30.78
434395 ncm-dbt-05 582318 500 116 148 236 -22.26 ± 13.95 1 67 145 37 0 -43.3 ± 27.89
434394 ncm-dbt-02 586816 500 120 148 232 -19.48 ± 14.9 0 74 131 44 1 -40.48 ± 29.77
434393 ncm-dbt-04 566533 500 111 143 246 -22.27 ± 14.47 0 73 137 39 1 -46.13 ± 28.97
434392 ncm-dbt-01 579289 500 105 150 245 -31.35 ± 14.34 1 78 136 35 0 -61.79 ± 29.05
434391 ncm-dbt-03 586223 500 120 148 232 -19.48 ± 15.28 0 78 122 50 0 -39.08 ± 30.91
434390 ncm-dbt-05 579661 500 108 139 253 -21.57 ± 15.43 0 81 119 50 0 -43.3 ± 31.28
434389 ncm-dbt-02 587707 500 103 148 249 -31.35 ± 13.94 0 78 139 33 0 -63.23 ± 28.63
434388 ncm-dbt-04 566809 500 115 142 243 -18.78 ± 14.73 0 73 131 46 0 -37.67 ± 29.77
434387 ncm-dbt-01 585590 500 117 147 236 -20.87 ± 14.24 0 71 138 41 0 -41.89 ± 28.84
434386 ncm-dbt-03 586223 500 108 136 256 -19.48 ± 13.31 0 63 152 35 0 -39.08 ± 26.92
434385 ncm-dbt-05 582110 500 107 152 241 -31.35 ± 14.98 1 83 126 40 0 -61.79 ± 30.39
434384 ncm-dbt-02 587622 500 118 143 239 -17.38 ± 14.87 1 70 132 47 0 -33.46 ± 29.64
434383 ncm-dbt-04 563431 500 116 135 249 -13.21 ± 13.89 0 62 145 43 0 -26.46 ± 27.94
434382 ncm-dbt-01 581693 500 110 134 256 -16.69 ± 14.44 0 69 136 45 0 -33.46 ± 29.13
434381 ncm-dbt-02 587197 500 111 142 247 -21.57 ± 13.76 0 68 145 37 0 -43.3 ± 27.89
434380 ncm-dbt-03 584622 500 100 150 250 -34.86 ± 14.7 0 87 126 37 0 -70.44 ± 30.38
434379 ncm-dbt-05 582485 500 103 154 243 -35.56 ± 13.95 0 82 137 31 0 -71.89 ± 28.86
434378 ncm-dbt-04 569111 500 111 144 245 -22.97 ± 14.27 0 72 140 37 1 -47.55 ± 28.56
434377 ncm-dbt-01 582152 500 109 134 257 -17.39 ± 13.69 0 63 150 36 1 -36.26 ± 27.22
434376 ncm-dbt-03 584159 500 108 158 234 -34.86 ± 14.95 0 88 125 36 1 -71.89 ± 30.51
434375 ncm-dbt-05 578424 500 103 147 250 -30.65 ± 14.29 0 80 134 36 0 -61.79 ± 29.32
434374 ncm-dbt-02 587113 500 102 146 252 -30.65 ± 14.94 0 84 127 38 1 -63.23 ± 30.26
434373 ncm-dbt-04 566928 500 104 137 259 -22.96 ± 14.53 1 72 136 41 0 -44.72 ± 29.1
434372 ncm-dbt-01 583698 500 103 157 240 -37.67 ± 14.22 1 83 135 31 0 -74.79 ± 29.13
434371 ncm-dbt-03 585590 500 109 148 243 -27.15 ± 15.2 0 84 121 45 0 -54.65 ± 31.04
434370 ncm-dbt-04 567442 500 97 170 233 -51.09 ± 14.85 0 104 115 31 0 -104.49 ± 31.86
434369 ncm-dbt-05 584327 500 109 138 253 -20.18 ± 14.96 0 75 130 44 1 -41.89 ± 29.89
434368 ncm-dbt-02 589326 500 104 151 245 -32.76 ± 14.56 0 84 129 37 0 -66.1 ± 29.99
434367 ncm-dbt-01 583908 500 102 150 248 -33.46 ± 14.99 1 85 125 39 0 -66.1 ± 30.52

Commit

Commit ID 22e92d23d24ade1053cf543624d0efd01387e886
Author bmc4
Date 2021-12-21 12:42:33 UTC
Remove Capture history pruning Fixed number of games. (book: 8moves_v3.png): ELO: -0.69 +-1.8 (95%) LOS: 22.1% Total: 20000 W: 1592 L: 1632 D: 16776 Ptnml(0-2): 44, 1194, 7566, 1150, 46 https://tests.stockfishchess.org/tests/view/61bb8eb657a0d0f327c30ce8 STC: LLR: 2.94 (-2.94,2.94) <-2.25,0.25> Total: 139976 W: 36039 L: 36036 D: 67901 Ptnml(0-2): 435, 16138, 36885, 16049, 481 https://tests.stockfishchess.org/tests/view/61be731857a0d0f327c39ea2 LTC: LLR: 2.95 (-2.94,2.94) <-2.25,0.25> Total: 70656 W: 18284 L: 18189 D: 34183 Ptnml(0-2): 34, 7317, 20529, 7416, 32 https://tests.stockfishchess.org/tests/view/61bf39b657a0d0f327c3c37b closes https://github.com/official-stockfish/Stockfish/pull/3867 bench: 4281737
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