Dev Builds » 20240909-1543

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 06:54:33 584852 4000 1527 582 1891 +83.66 ± 5.04 5 106 849 1019 21 +174.77 ± 11.65
ncm-dbt-02 06:53:06 587157 3996 1477 549 1970 +82.19 ± 4.83 1 98 881 1008 10 +172.77 ± 11.4
ncm-dbt-03 06:54:47 586944 4004 1487 565 1952 +81.46 ± 4.92 3 108 864 1018 9 +171.7 ± 11.54
ncm-dbt-04 06:55:39 571525 4000 1492 517 1991 +86.43 ± 4.92 0 112 808 1073 7 +183.51 ± 11.97
ncm-dbt-05 06:53:23 582691 4000 1508 574 1918 +82.65 ± 4.99 2 115 844 1025 14 +173.22 ± 11.7
20000 7491 2787 9722 +83.28 ± 2.21 11 539 4246 5143 61 +175.17 ± 5.21

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
376849 ncm-dbt-03 586054 4 1 1 2 -0.0 ± 296.81 0 1 0 1 0 -0.0 ± 1199.83 ↓
376848 ncm-dbt-02 585211 496 183 62 251 +86.5 ± 13.7 0 12 104 131 1 +183.46 ± 33.41 ↓
376847 ncm-dbt-04 569589 500 188 63 249 +88.74 ± 14.43 0 14 101 131 4 +183.51 ± 34.01 ↓
376846 ncm-dbt-01 583824 500 193 71 236 +86.52 ± 13.47 0 6 122 116 6 +174.55 ± 30.02 ↓
376845 ncm-dbt-05 584790 500 198 76 226 +86.52 ± 14.67 0 18 94 136 2 +181.7 ± 35.31 ↓
376844 ncm-dbt-03 587197 500 183 71 246 +79.17 ± 14.48 0 17 107 123 3 +162.35 ± 33.02 ↓
376497 ncm-dbt-04 573568 500 185 56 259 +91.71 ± 13.42 0 10 102 137 1 +196.45 ± 33.71 ↓
376496 ncm-dbt-01 584327 500 199 71 230 +90.96 ± 14.47 0 14 98 134 4 +189.0 ± 34.56 ↓
376495 ncm-dbt-05 584832 500 187 81 232 +74.79 ± 14.49 1 17 108 123 1 +157.24 ± 32.87 ↓
376494 ncm-dbt-03 585126 500 187 71 242 +82.1 ± 14.84 1 17 99 131 2 +172.78 ± 34.4 ↓
376493 ncm-dbt-02 587834 500 186 75 239 +78.44 ± 12.64 0 8 123 119 0 +165.8 ± 30.03 ↓
376492 ncm-dbt-04 571310 500 178 75 247 +72.61 ± 13.69 0 16 115 119 0 +152.18 ± 31.7 ↓
376491 ncm-dbt-01 583321 500 182 56 262 +89.48 ± 14.59 1 14 95 138 2 +190.85 ± 35.14 ↓
376490 ncm-dbt-03 587197 500 185 74 241 +78.43 ± 13.88 0 15 110 124 1 +164.07 ± 32.48 ↓
376489 ncm-dbt-02 587070 500 206 77 217 +91.71 ± 13.73 0 11 101 136 2 +194.57 ± 33.94 ↓
376488 ncm-dbt-05 578300 500 184 89 227 +66.82 ± 14.06 0 19 118 112 1 +137.37 ± 31.31 ↓
376487 ncm-dbt-04 572558 500 187 65 248 +86.52 ± 14.23 0 17 94 139 0 +185.33 ± 35.32 ↓
376486 ncm-dbt-03 587919 500 187 73 240 +80.63 ± 13.79 0 14 109 126 1 +169.27 ± 32.62 ↓
376485 ncm-dbt-01 583279 500 191 80 229 +78.44 ± 14.6 1 17 103 128 1 +165.8 ± 33.7 ↓
376484 ncm-dbt-05 581153 500 188 72 240 +82.1 ± 14.7 0 19 98 131 2 +171.02 ± 34.58 ↓
376483 ncm-dbt-02 588899 500 180 68 252 +79.17 ± 13.9 0 15 109 125 1 +165.8 ± 32.64 ↓
376482 ncm-dbt-04 570148 500 195 66 239 +91.71 ± 13.73 0 13 95 142 0 +198.34 ± 35.12 ↓
376481 ncm-dbt-01 584874 500 186 62 252 +88.0 ± 14.56 1 12 103 130 4 +183.51 ± 33.63 ↓
376480 ncm-dbt-03 586943 500 176 64 260 +79.17 ± 12.98 0 10 118 122 0 +167.53 ± 30.96 ↓
376479 ncm-dbt-05 583950 500 188 70 242 +83.57 ± 14.01 0 15 103 131 1 +176.33 ± 33.67 ↓
376478 ncm-dbt-02 585169 500 188 71 241 +82.83 ± 14.29 0 16 103 129 2 +172.78 ± 33.69 ↓
376477 ncm-dbt-01 584958 500 197 74 229 +87.26 ± 13.33 0 10 108 131 1 +185.33 ± 32.63 ↓
376476 ncm-dbt-04 571391 500 178 66 256 +79.17 ± 13.45 0 13 112 125 0 +167.53 ± 32.08 ↓
376475 ncm-dbt-03 586562 500 197 69 234 +90.97 ± 13.87 1 9 103 135 2 +194.57 ± 33.53 ↓
376474 ncm-dbt-05 584369 500 177 60 263 +82.83 ± 14.0 0 13 110 124 3 +171.02 ± 32.42 ↓
376473 ncm-dbt-02 587962 500 179 69 252 +77.7 ± 13.4 0 11 120 117 2 +160.64 ± 30.7 ↓
376472 ncm-dbt-01 585590 500 190 89 221 +71.16 ± 14.64 1 20 106 123 0 +150.51 ± 33.22 ↓
376471 ncm-dbt-04 569909 500 193 72 235 +85.78 ± 14.07 0 15 100 134 1 +181.7 ± 34.21 ↓
376470 ncm-dbt-03 587792 500 192 70 238 +86.52 ± 13.47 0 12 104 134 0 +185.33 ± 33.42 ↓
376469 ncm-dbt-02 586731 500 176 63 261 +79.9 ± 13.31 0 11 116 122 1 +167.53 ± 31.34 ↓
376468 ncm-dbt-05 582152 500 202 69 229 +94.69 ± 13.46 0 8 104 135 3 +200.24 ± 33.24 ↓
376467 ncm-dbt-01 588643 500 189 79 232 +77.71 ± 14.29 1 13 114 119 3 +160.64 ± 31.79 ↓
376466 ncm-dbt-03 587707 500 179 72 249 +75.52 ± 13.79 1 13 114 122 0 +160.64 ± 31.79 ↓
376465 ncm-dbt-04 573729 500 188 54 258 +95.44 ± 14.1 0 14 89 146 1 +206.01 ± 36.33 ↓
376464 ncm-dbt-02 588387 500 179 64 257 +81.37 ± 14.25 1 14 105 129 1 +172.78 ± 33.32 ↓
376463 ncm-dbt-05 581985 500 184 57 259 +90.22 ± 13.23 1 6 109 133 1 +194.57 ± 32.27 ↓

Commit

Commit ID ddc9f48bc3e0b1d22b2d1259d5d45d4640e0374d
Author Shawn Xu
Date 2024-09-09 15:43:05 UTC
Introduce Material Correction History Idea from Caissa (https://github.com/Witek902/Caissa) chess engine. Add a secondary correction history indexed by the material key of a position. The material key is the zobrist hash representing the number of pieces left in a position. Passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 189472 W: 49360 L: 48813 D: 91299 Ptnml(0-2): 666, 22453, 47953, 22996, 668 https://tests.stockfishchess.org/tests/view/66cbddafbf8c9d8780fda9f1 Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 224190 W: 57022 L: 56312 D: 110856 Ptnml(0-2): 197, 24723, 61540, 25443, 192 https://tests.stockfishchess.org/tests/view/66cd529bbf8c9d8780fdab4c closes https://github.com/official-stockfish/Stockfish/pull/5556 Bench: 1462697
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