Dev Builds » 20211017-1554

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 06:54:35 583685 3988 700 1319 1969 -54.37 ± 5.12 11 799 984 198 2 -109.8 ± 10.82
ncm-dbt-02 06:54:24 586171 4020 685 1337 1998 -56.85 ± 5.2 11 841 951 203 4 -115.57 ± 11.03
ncm-dbt-03 06:53:46 587331 4000 666 1378 1956 -62.51 ± 5.1 13 863 949 173 2 -127.17 ± 11.02
ncm-dbt-04 06:52:19 571547 4000 688 1308 2004 -54.29 ± 5.07 5 811 985 197 2 -110.79 ± 10.81
ncm-dbt-05 06:54:42 586354 3992 709 1262 2021 -48.44 ± 5.21 11 766 987 229 3 -97.33 ± 10.82
20000 3448 6604 9948 -55.29 ± 2.3 51 4080 4856 1000 13 -112.06 ± 4.87

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
400383 ncm-dbt-02 585379 20 2 8 10 -107.52 ± 80.33 0 7 2 1 0 -240.82 ± 566.7
400382 ncm-dbt-01 584369 488 88 158 242 -50.18 ± 14.39 1 93 125 25 0 -101.0 ± 30.35
400381 ncm-dbt-05 585843 492 81 151 260 -49.77 ± 14.56 2 92 126 26 0 -98.6 ± 30.24
400380 ncm-dbt-03 587537 500 80 169 251 -62.51 ± 14.31 1 109 118 22 0 -127.76 ± 31.37
400379 ncm-dbt-04 571150 500 93 172 235 -55.36 ± 14.93 0 109 111 30 0 -113.68 ± 32.44
400378 ncm-dbt-02 585548 500 85 168 247 -58.21 ± 15.19 3 104 117 25 1 -116.78 ± 31.56
400377 ncm-dbt-01 584453 500 96 169 235 -51.09 ± 15.23 2 101 115 32 0 -101.46 ± 31.86
400376 ncm-dbt-05 583824 500 88 155 257 -46.84 ± 14.49 1 94 126 29 0 -93.95 ± 30.32
400375 ncm-dbt-04 572316 500 88 163 249 -52.51 ± 14.11 2 93 134 20 1 -106.01 ± 29.04
400374 ncm-dbt-03 587494 500 85 162 253 -53.93 ± 14.05 0 101 125 24 0 -110.6 ± 30.39
400373 ncm-dbt-02 589625 500 91 172 237 -56.79 ± 14.05 0 102 129 17 2 -119.89 ± 29.69
400372 ncm-dbt-01 582193 500 85 159 256 -51.8 ± 14.08 1 95 132 21 1 -106.01 ± 29.35
400371 ncm-dbt-04 571793 500 92 171 237 -55.36 ± 14.39 1 102 122 25 0 -112.14 ± 30.83
400370 ncm-dbt-05 587452 500 95 163 242 -47.54 ± 14.53 2 92 128 28 0 -93.95 ± 30.03
400369 ncm-dbt-03 587155 500 95 185 220 -63.23 ± 14.47 3 105 121 21 0 -126.18 ± 30.9
400368 ncm-dbt-02 586520 500 84 163 253 -55.36 ± 14.93 1 106 114 29 0 -112.14 ± 32.0
400367 ncm-dbt-01 584076 500 80 171 249 -63.94 ± 14.23 2 107 121 20 0 -129.35 ± 30.88
400366 ncm-dbt-04 571070 500 90 164 246 -51.8 ± 13.94 0 98 128 24 0 -106.01 ± 29.96
400365 ncm-dbt-05 584958 500 90 152 258 -43.3 ± 15.2 1 95 120 33 1 -88.0 ± 31.17
400364 ncm-dbt-03 584748 500 72 164 264 -64.66 ± 14.26 3 105 123 19 0 -129.35 ± 30.56
400363 ncm-dbt-02 589197 500 86 174 240 -61.79 ± 15.21 2 112 108 28 0 -124.6 ± 32.89
400362 ncm-dbt-04 570428 500 86 157 257 -49.67 ± 13.83 0 95 131 24 0 -101.46 ± 29.54
400361 ncm-dbt-05 580365 500 92 158 250 -46.13 ± 15.23 1 98 118 32 1 -93.95 ± 31.44
400360 ncm-dbt-01 579001 500 97 161 242 -44.72 ± 14.24 2 87 134 27 0 -88.0 ± 29.2
400359 ncm-dbt-03 588558 500 83 182 235 -69.71 ± 16.04 3 123 95 28 1 -142.26 ± 34.91
400358 ncm-dbt-02 587962 500 83 164 253 -56.78 ± 13.91 1 100 128 21 0 -115.23 ± 29.89
400357 ncm-dbt-04 572598 500 85 165 250 -56.07 ± 15.35 1 109 110 29 1 -115.23 ± 32.58
400356 ncm-dbt-05 584790 500 81 145 274 -44.72 ± 13.4 0 87 140 23 0 -90.97 ± 28.28
400355 ncm-dbt-01 586901 500 90 159 251 -48.25 ± 14.57 0 99 121 30 0 -98.44 ± 31.02
400354 ncm-dbt-03 587579 500 81 174 245 -65.38 ± 13.57 1 107 126 16 0 -134.15 ± 30.02
400353 ncm-dbt-02 579992 500 90 154 256 -44.72 ± 14.51 1 92 127 30 0 -89.48 ± 30.19
400352 ncm-dbt-04 570629 500 77 159 264 -57.5 ± 14.49 1 105 119 25 0 -116.78 ± 31.26
400351 ncm-dbt-05 583447 500 81 175 244 -66.1 ± 15.26 2 117 104 27 0 -134.15 ± 33.51
400350 ncm-dbt-03 587707 500 87 176 237 -62.51 ± 14.58 1 110 117 21 1 -129.35 ± 31.52
400349 ncm-dbt-01 584622 500 86 169 245 -58.21 ± 13.97 0 105 123 22 0 -119.89 ± 30.63
400348 ncm-dbt-02 587664 500 92 163 245 -49.67 ± 15.29 2 99 118 30 1 -99.95 ± 31.44
400347 ncm-dbt-04 572396 500 77 157 266 -56.07 ± 13.59 0 100 130 20 0 -115.23 ± 29.58
400346 ncm-dbt-01 583866 500 78 173 249 -66.82 ± 15.02 3 112 113 21 1 -135.76 ± 32.12
400345 ncm-dbt-03 587877 500 83 166 251 -58.21 ± 14.11 1 103 124 22 0 -118.33 ± 30.49
400344 ncm-dbt-05 600159 500 101 163 236 -43.3 ± 15.07 2 91 125 31 1 -86.52 ± 30.48
400343 ncm-dbt-02 583656 500 72 171 257 -69.71 ± 14.59 1 119 108 22 0 -143.89 ± 32.9

Commit

Commit ID 8a74c089286913f24a641aa37532006088d0f438
Author Stéphane Nicolet
Date 2021-10-17 15:54:39 UTC
Remove noLMRExtension flag This simplification patch removes the noLMRExtension flag. It was introduced in June (see following link for that commit), but does not seem to be necessary anymore. Link: https://github.com/official-stockfish/Stockfish/commit/e1f181ee643dcaa92c606b74b3abd23dede136cd STC: LLR: 2.94 (-2.94,2.94) <-2.50,0.50> Total: 21200 W: 5369 L: 5228 D: 10603 Ptnml(0-2): 67, 2355, 5616, 2494, 68 https://tests.stockfishchess.org/tests/view/616c03d299b580bf37797dcb LTC: LLR: 2.94 (-2.94,2.94) <-2.50,0.50> Total: 37536 W: 9387 L: 9278 D: 18871 Ptnml(0-2): 23, 3988, 10643, 4085, 29 https://tests.stockfishchess.org/tests/view/616c10f499b580bf37797ddd closes https://github.com/official-stockfish/Stockfish/pull/3743 Bench: 4792969
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