Dev Builds » 20231021-0831

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 06:54:20 582281 3996 1389 621 1986 +67.62 ± 4.98 1 149 936 905 7 +139.56 ± 11.08
ncm-dbt-02 06:53:03 585720 4000 1442 690 1868 +66.1 ± 5.09 0 172 914 904 10 +135.35 ± 11.25
ncm-dbt-03 06:54:47 585054 4000 1433 654 1913 +68.54 ± 4.92 0 140 949 903 8 +141.23 ± 10.98
ncm-dbt-04 06:54:37 568052 4004 1381 675 1948 +61.91 ± 5.08 2 177 944 871 8 +126.83 ± 11.06
ncm-dbt-05 06:54:06 579242 4000 1404 670 1926 +64.48 ± 5.0 0 158 963 866 13 +131.14 ± 10.91
20000 7049 3310 9641 +65.73 ± 2.24 3 796 4706 4449 46 +134.79 ± 4.94

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
422393 ncm-dbt-04 567601 4 2 0 2 +190.27 ± 27.79 0 0 0 2 0 +1199.83 ± 312.71
422392 ncm-dbt-01 582277 496 183 78 235 +74.68 ± 13.84 0 16 111 121 0 +156.98 ± 32.33
422391 ncm-dbt-03 586393 500 182 84 234 +68.99 ± 13.56 0 15 123 111 1 +142.26 ± 30.43
422390 ncm-dbt-05 579868 500 184 84 232 +70.43 ± 14.2 0 19 113 117 1 +145.54 ± 32.08
422389 ncm-dbt-02 587155 500 175 81 244 +66.1 ± 14.73 0 24 109 116 1 +135.76 ± 32.75
422388 ncm-dbt-04 568991 500 158 74 268 +58.93 ± 14.56 1 23 117 109 0 +123.02 ± 31.54
422387 ncm-dbt-01 583279 500 169 84 247 +59.64 ± 15.25 0 30 106 113 1 +121.46 ± 33.17
422386 ncm-dbt-03 583992 500 176 89 235 +61.07 ± 13.38 0 15 135 98 2 +123.02 ± 28.67
422385 ncm-dbt-05 575761 500 167 91 242 +53.22 ± 13.87 0 22 131 96 1 +107.54 ± 29.49
422384 ncm-dbt-02 588132 500 177 92 231 +59.64 ± 14.99 0 27 113 108 2 +119.89 ± 32.15
422383 ncm-dbt-04 566770 500 165 90 245 +52.51 ± 15.05 0 31 114 104 1 +106.01 ± 32.0
422382 ncm-dbt-01 580987 500 176 83 241 +65.38 ± 13.27 0 15 127 108 0 +135.76 ± 29.83
422381 ncm-dbt-05 579001 500 177 69 254 +76.25 ± 13.21 0 9 127 111 3 +155.54 ± 29.48
422380 ncm-dbt-02 584243 500 183 75 242 +76.25 ± 14.53 0 20 103 126 1 +158.93 ± 33.71
422379 ncm-dbt-03 589625 500 177 77 246 +70.43 ± 14.2 0 18 116 114 2 +143.89 ± 31.59
422378 ncm-dbt-04 568673 500 175 68 257 +75.52 ± 14.23 0 18 108 123 1 +157.24 ± 32.87
422377 ncm-dbt-01 579951 500 185 74 241 +78.43 ± 14.02 0 15 111 122 2 +162.35 ± 32.31
422376 ncm-dbt-02 584874 500 191 91 218 +70.43 ± 14.48 0 21 109 119 1 +145.54 ± 32.74
422375 ncm-dbt-05 583112 500 174 88 238 +60.36 ± 13.79 0 18 130 100 2 +121.46 ± 29.51
422374 ncm-dbt-03 584034 500 182 75 243 +75.52 ± 13.79 0 14 117 117 2 +155.54 ± 31.31
422373 ncm-dbt-04 569230 500 165 94 241 +49.67 ± 14.77 1 28 120 101 0 +102.97 ± 31.15
422372 ncm-dbt-01 580447 500 167 83 250 +58.93 ± 13.72 0 18 132 98 2 +118.33 ± 29.22
422371 ncm-dbt-05 581194 500 176 85 239 +63.94 ± 14.37 0 21 119 108 2 +129.35 ± 31.2
422370 ncm-dbt-03 584201 500 191 94 215 +68.27 ± 13.54 0 16 121 113 0 +142.26 ± 30.77
422369 ncm-dbt-02 586985 500 175 90 235 +59.64 ± 13.61 0 18 130 101 1 +121.46 ± 29.51
422368 ncm-dbt-04 568474 500 171 87 242 +58.93 ± 13.72 0 20 126 104 0 +121.46 ± 30.15
422367 ncm-dbt-01 582318 500 174 76 250 +68.99 ± 13.26 0 14 124 112 0 +143.89 ± 30.23
422366 ncm-dbt-05 578054 500 180 85 235 +66.82 ± 15.16 0 26 105 117 2 +135.76 ± 33.36
422365 ncm-dbt-02 585169 500 180 74 246 +74.79 ± 14.06 0 16 114 118 2 +153.86 ± 31.85
422364 ncm-dbt-03 583154 500 166 71 263 +66.82 ± 14.06 0 19 118 112 1 +137.37 ± 31.31
422363 ncm-dbt-04 568633 500 169 80 251 +62.51 ± 14.44 0 21 122 104 3 +124.6 ± 30.76
422362 ncm-dbt-01 585126 500 176 76 248 +70.43 ± 14.34 0 20 111 118 1 +145.54 ± 32.41
422361 ncm-dbt-02 586139 500 186 92 222 +66.1 ± 14.73 0 24 109 116 1 +135.76 ± 32.75
422360 ncm-dbt-03 584411 500 183 77 240 +74.79 ± 14.49 0 21 102 127 0 +157.24 ± 33.88
422359 ncm-dbt-05 580862 500 172 91 237 +56.78 ± 14.6 0 26 118 105 1 +115.23 ± 31.41
422358 ncm-dbt-04 566020 500 193 86 221 +75.52 ± 13.64 0 14 116 119 1 +157.24 ± 31.47
422357 ncm-dbt-01 583866 500 159 67 274 +64.66 ± 14.67 1 21 114 113 1 +134.15 ± 31.97
422356 ncm-dbt-02 583070 500 175 95 230 +56.07 ± 14.01 0 22 127 100 1 +113.68 ± 30.06
422355 ncm-dbt-03 584622 500 176 87 237 +62.51 ± 14.17 0 22 117 111 0 +129.35 ± 31.52
422354 ncm-dbt-05 576088 500 174 77 249 +68.27 ± 13.83 0 17 120 112 1 +140.62 ± 30.95
422353 ncm-dbt-04 568077 500 183 96 221 +61.07 ± 14.38 0 22 121 105 2 +123.02 ± 30.92

Commit

Commit ID 90c18b0b500a5226717353a37a82cd026d71b616
Author FauziAkram
Date 2023-10-21 08:31:51 UTC
Removing history condition Removing the bad history condition from the skip futility pruning formula. Passed STC: LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 142688 W: 36420 L: 36317 D: 69951 Ptnml(0-2): 481, 16653, 36970, 16762, 478 https://tests.stockfishchess.org/tests/view/65270a663125598fc7eb8c67 Passed LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 435378 W: 110723 L: 110925 D: 213730 Ptnml(0-2): 278, 47251, 122788, 47139, 233 https://tests.stockfishchess.org/tests/view/6528595f3125598fc7eba8f5 closes https://github.com/official-stockfish/Stockfish/pull/4834 Bench: 1110579
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