Dev Builds » 20240203-1609

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 06:55:47 583441 3998 1455 600 1943 +75.47 ± 4.93 0 130 891 971 7 +157.32 ± 11.37
ncm-dbt-02 06:56:28 586344 4012 1488 645 1879 +74.11 ± 4.94 2 127 913 954 10 +153.97 ± 11.22
ncm-dbt-03 06:54:17 587554 4000 1402 614 1984 +69.35 ± 4.9 1 131 957 901 10 +142.87 ± 10.92
ncm-dbt-04 06:55:58 570645 3996 1476 629 1891 +74.78 ± 4.92 1 125 906 958 8 +155.72 ± 11.26
ncm-dbt-05 06:56:55 583511 3994 1451 616 1927 +73.72 ± 5.03 0 138 903 939 17 +151.19 ± 11.29
20000 7272 3104 9624 +73.48 ± 2.21 4 651 4570 4723 52 +152.18 ± 5.01

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
401206 ncm-dbt-02 588089 12 4 2 6 +58.39 ± 68.56 0 0 4 2 0 +120.33 ± 161.99
401205 ncm-dbt-05 573810 494 180 81 233 +70.58 ± 14.61 0 19 113 112 3 +142.53 ± 32.06
401204 ncm-dbt-04 570629 496 180 69 247 +79.09 ± 13.82 0 15 107 126 0 +167.35 ± 32.97
401203 ncm-dbt-01 584664 498 182 78 238 +73.64 ± 13.46 0 13 120 115 1 +152.88 ± 30.79
401202 ncm-dbt-03 588302 500 181 82 237 +69.71 ± 13.88 0 17 118 114 1 +143.89 ± 31.26
401201 ncm-dbt-02 581236 500 186 73 241 +79.9 ± 14.64 1 15 107 124 3 +165.8 ± 33.0
401200 ncm-dbt-05 587240 500 186 72 242 +80.63 ± 14.09 0 14 111 122 3 +165.8 ± 32.28
401199 ncm-dbt-04 572155 500 189 73 238 +82.1 ± 13.37 0 11 113 125 1 +172.78 ± 31.83
401198 ncm-dbt-01 583740 500 191 62 247 +91.71 ± 13.26 0 8 107 133 2 +194.57 ± 32.69
401197 ncm-dbt-03 588302 500 149 82 269 +46.84 ± 14.22 0 27 130 92 1 +93.95 ± 29.74
401196 ncm-dbt-02 586858 500 183 74 243 +76.97 ± 14.27 0 17 109 122 2 +158.93 ± 32.69
401195 ncm-dbt-04 571511 500 170 81 249 +62.51 ± 14.72 1 22 115 111 1 +129.35 ± 31.83
401194 ncm-dbt-05 585928 500 176 78 246 +68.99 ± 14.14 0 18 118 112 2 +140.62 ± 31.28
401193 ncm-dbt-01 582110 500 181 76 243 +74.06 ± 14.03 0 18 109 123 0 +155.54 ± 32.7
401192 ncm-dbt-02 588941 500 183 80 237 +72.61 ± 13.39 0 14 119 117 0 +152.18 ± 31.0
401191 ncm-dbt-03 586985 500 181 64 255 +82.83 ± 13.85 0 14 106 129 1 +174.55 ± 33.13
401190 ncm-dbt-01 580282 500 182 67 251 +81.36 ± 14.82 0 20 97 131 2 +169.27 ± 34.75
401189 ncm-dbt-04 567997 500 192 88 220 +73.33 ± 14.58 0 21 105 123 1 +152.18 ± 33.38
401188 ncm-dbt-05 582527 500 173 78 249 +66.82 ± 14.62 0 22 113 113 2 +135.76 ± 32.12
401187 ncm-dbt-02 586393 500 188 80 232 +76.25 ± 13.81 0 13 119 115 3 +155.54 ± 30.96
401186 ncm-dbt-03 586223 500 175 72 253 +72.61 ± 14.13 0 16 118 113 3 +147.19 ± 31.23
401185 ncm-dbt-01 583489 500 183 76 241 +75.52 ± 14.51 0 19 107 122 2 +155.54 ± 33.04
401184 ncm-dbt-04 567244 500 180 72 248 +76.25 ± 13.36 0 13 116 121 0 +160.64 ± 31.43
401183 ncm-dbt-02 586731 500 181 95 224 +60.36 ± 14.21 0 22 121 106 1 +123.02 ± 30.92
401182 ncm-dbt-05 583154 500 179 79 242 +70.43 ± 13.76 0 16 119 114 1 +145.54 ± 31.07
401181 ncm-dbt-03 586901 500 177 73 250 +73.34 ± 12.96 0 11 124 115 0 +153.86 ± 30.07
401180 ncm-dbt-01 585379 500 184 86 230 +68.99 ± 13.56 0 16 120 114 0 +143.89 ± 30.92
401179 ncm-dbt-02 586139 500 185 88 227 +68.27 ± 14.26 0 21 111 118 0 +142.26 ± 32.42
401178 ncm-dbt-04 570789 500 186 84 230 +71.88 ± 14.1 0 17 116 115 2 +147.19 ± 31.57
401177 ncm-dbt-05 586562 500 187 76 237 +78.43 ± 14.31 0 17 107 124 2 +162.35 ± 33.02
401176 ncm-dbt-03 586943 500 184 90 226 +66.1 ± 13.89 1 15 124 109 1 +137.37 ± 30.31
401175 ncm-dbt-01 582360 500 175 86 239 +62.51 ± 14.03 0 21 119 110 0 +129.35 ± 31.2
401174 ncm-dbt-03 587664 500 181 73 246 +76.25 ± 13.21 0 11 121 117 1 +158.93 ± 30.54
401173 ncm-dbt-02 584748 500 186 78 236 +76.25 ± 13.21 0 12 118 120 0 +160.64 ± 31.07
401172 ncm-dbt-04 571190 500 195 74 231 +85.78 ± 13.14 0 10 109 131 0 +183.51 ± 32.46
401171 ncm-dbt-05 583279 500 185 76 239 +76.97 ± 13.68 0 13 117 118 2 +158.93 ± 31.27
401170 ncm-dbt-01 585506 500 177 69 254 +76.25 ± 13.66 0 15 112 123 0 +160.64 ± 32.15
401169 ncm-dbt-04 573649 500 184 88 228 +67.54 ± 13.95 0 16 125 106 3 +135.76 ± 30.17
401168 ncm-dbt-03 589112 500 174 78 248 +67.54 ± 14.37 0 20 116 112 2 +137.37 ± 31.63
401167 ncm-dbt-02 587962 500 192 75 233 +82.83 ± 14.14 1 13 105 130 1 +176.33 ± 33.3
401166 ncm-dbt-05 585590 500 185 76 239 +76.97 ± 14.56 0 19 105 124 2 +158.93 ± 33.37

Commit

Commit ID 56b342f9b27827e77cb9e898aa2ed69b628d672f
Author FauziAkram
Date 2024-02-03 16:09:05 UTC
Simplify the extension formula Simplify the extension formula in the case of cutNode by removing the depth condition and always setting extension to -2. Passed STC: LLR: 2.97 (-2.94,2.94) <-1.75,0.25> Total: 277280 W: 70760 L: 70802 D: 135718 Ptnml(0-2): 971, 31775, 73153, 31807, 934 https://tests.stockfishchess.org/tests/view/65ad08f779aa8af82b979dd6 Passed LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 452976 W: 112992 L: 113215 D: 226769 Ptnml(0-2): 266, 51041, 124112, 50788, 281 https://tests.stockfishchess.org/tests/view/65ae466fc865510db026a760 closes https://github.com/official-stockfish/Stockfish/pull/5021 Bench: 1492957
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