Dev Builds » 20240623-0946

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 06:51:31 584362 4010 1465 605 1940 +75.69 ± 4.97 3 120 911 956 15 +156.79 ± 11.22
ncm-dbt-02 06:51:39 585983 4004 1501 612 1891 +78.45 ± 4.92 2 115 887 988 10 +164.1 ± 11.38
ncm-dbt-03 06:49:35 587358 4000 1502 617 1881 +78.16 ± 4.99 2 122 879 983 14 +162.56 ± 11.45
ncm-dbt-04 06:49:42 572132 4000 1474 635 1891 +73.97 ± 4.95 1 128 914 945 12 +153.02 ± 11.21
ncm-dbt-05 06:51:02 584872 3986 1462 624 1900 +74.15 ± 5.02 2 128 910 936 17 +152.58 ± 11.24
20000 7404 3093 9503 +76.08 ± 2.22 10 613 4501 4808 68 +157.79 ± 5.05

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
390470 ncm-dbt-01 584327 10 4 1 5 +107.43 ± 84.35 0 0 2 3 0 +240.65 ± 570.11 ↓
390469 ncm-dbt-02 589197 4 0 1 3 -88.51 ± 137.63 0 1 1 0 0 -190.5 ± 634.21 ↓
390468 ncm-dbt-05 585928 486 171 78 237 +67.32 ± 14.07 1 15 117 110 0 +141.78 ± 31.32 ↓
390467 ncm-dbt-03 586266 500 187 80 233 +75.52 ± 13.64 0 15 113 122 0 +158.93 ± 31.99 ↓
390466 ncm-dbt-04 569869 500 189 75 236 +80.63 ± 14.09 0 13 114 119 4 +164.07 ± 31.75 ↓
390465 ncm-dbt-02 588260 500 177 89 234 +61.79 ± 13.85 0 20 122 108 0 +127.76 ± 30.73 ↓
390464 ncm-dbt-01 583740 500 189 80 231 +76.97 ± 13.98 0 15 113 120 2 +158.93 ± 31.99 ↓
390463 ncm-dbt-05 580075 500 184 77 239 +75.52 ± 14.23 0 18 108 123 1 +157.24 ± 32.87 ↓
390462 ncm-dbt-03 588984 500 182 79 239 +72.61 ± 14.27 0 18 113 117 2 +148.85 ± 32.06 ↓
390461 ncm-dbt-04 573123 500 194 74 232 +85.04 ± 13.13 0 9 113 127 1 +179.9 ± 31.72 ↓
390460 ncm-dbt-02 582819 500 187 70 243 +82.83 ± 14.29 0 17 100 132 1 +174.55 ± 34.22 ↓
390459 ncm-dbt-01 583405 500 185 73 242 +79.17 ± 14.19 0 16 108 124 2 +164.07 ± 32.83 ↓
390458 ncm-dbt-05 584285 500 185 72 243 +79.9 ± 13.47 0 11 117 120 2 +165.8 ± 31.17 ↓
390457 ncm-dbt-03 586308 500 178 78 244 +70.43 ± 13.62 0 15 121 113 1 +145.54 ± 30.73 ↓
390456 ncm-dbt-04 573123 500 176 80 244 +67.54 ± 14.92 0 24 108 116 2 +137.37 ± 32.9 ↓
390455 ncm-dbt-01 580987 500 185 77 238 +76.25 ± 14.53 0 17 112 117 4 +153.86 ± 32.2 ↓
390454 ncm-dbt-02 578588 500 182 60 258 +86.52 ± 13.63 0 12 105 132 1 +183.51 ± 33.24 ↓
390453 ncm-dbt-05 584453 500 186 80 234 +74.79 ± 14.34 0 20 104 126 0 +157.24 ± 33.54 ↓
390452 ncm-dbt-03 587155 500 196 79 225 +82.83 ± 15.0 1 16 102 127 4 +171.02 ± 33.87 ↓
390451 ncm-dbt-01 587664 500 173 84 243 +62.51 ± 15.11 1 24 112 111 2 +127.76 ± 32.29 ↓
390450 ncm-dbt-04 571752 500 184 89 227 +66.82 ± 14.06 0 20 115 115 0 +138.99 ± 31.79 ↓
390449 ncm-dbt-02 585464 500 184 77 239 +75.52 ± 14.08 1 15 110 124 0 +160.64 ± 32.5 ↓
390448 ncm-dbt-03 586139 500 198 80 222 +83.57 ± 14.31 1 14 102 132 1 +178.11 ± 33.85 ↓
390447 ncm-dbt-05 581028 500 187 82 231 +74.06 ± 14.88 1 17 112 116 4 +150.51 ± 32.22 ↓
390446 ncm-dbt-01 583740 500 179 73 248 +74.79 ± 13.31 0 10 127 110 3 +152.18 ± 29.55 ↓
390445 ncm-dbt-04 572840 500 186 82 232 +73.34 ± 13.86 1 12 121 114 2 +152.18 ± 30.64 ↓
390444 ncm-dbt-02 586774 500 192 77 231 +81.36 ± 12.88 0 8 120 121 1 +171.02 ± 30.5 ↓
390443 ncm-dbt-03 586943 500 183 68 249 +81.36 ± 14.4 0 15 109 122 4 +165.8 ± 32.64 ↓
390442 ncm-dbt-05 586562 500 187 79 234 +76.25 ± 14.39 0 17 111 119 3 +155.54 ± 32.36 ↓
390441 ncm-dbt-02 587537 500 187 83 230 +73.33 ± 13.27 0 12 123 114 1 +152.18 ± 30.28 ↓
390440 ncm-dbt-01 582360 500 190 75 235 +81.37 ± 13.81 2 9 111 128 0 +176.33 ± 32.16 ↓
390439 ncm-dbt-04 567918 500 181 83 236 +68.99 ± 14.84 0 23 108 117 2 +140.62 ± 32.9 ↓
390438 ncm-dbt-03 588984 500 190 85 225 +74.06 ± 14.46 0 21 103 126 0 +155.54 ± 33.71 ↓
390437 ncm-dbt-05 588089 500 169 76 255 +65.38 ± 13.72 0 15 130 102 3 +130.94 ± 29.39 ↓
390436 ncm-dbt-01 586181 500 187 72 241 +81.36 ± 13.81 0 13 111 124 2 +169.27 ± 32.25 ↓
390435 ncm-dbt-02 585759 500 197 65 238 +93.95 ± 13.92 0 11 99 137 3 +198.34 ± 34.31 ↓
390434 ncm-dbt-04 573527 500 185 88 227 +68.27 ± 13.08 0 13 127 110 0 +142.26 ± 29.73 ↓
390433 ncm-dbt-03 588089 500 188 68 244 +85.04 ± 13.13 0 8 116 124 2 +178.11 ± 31.15 ↓
390432 ncm-dbt-05 588558 500 193 80 227 +79.9 ± 14.36 0 15 111 120 4 +162.35 ± 32.31 ↓
390431 ncm-dbt-04 574906 500 179 64 257 +81.36 ± 13.81 0 14 108 127 1 +171.02 ± 32.78 ↓
390430 ncm-dbt-01 586858 500 173 70 257 +72.61 ± 13.69 0 16 115 119 0 +152.18 ± 31.7 ↓
390429 ncm-dbt-02 589454 500 195 90 215 +74.06 ± 15.01 1 19 107 120 3 +152.18 ± 33.05 ↓

Commit

Commit ID cc992e5e4a7110b21f85168bdedad7978edad140
Author FauziAkram
Date 2024-06-23 09:46:41 UTC
Internal iterative reductions: decrease depth more For PV nodes without a ttMove, we decrease depth. But in this patch, additionally, if the current position is found in the TT, and the stored depth in the TT is greater than or equal to the current search depth, we decrease the search depth even further. Passed STC: LLR: 2.96 (-2.94,2.94) <0.00,2.00> Total: 84384 W: 22154 L: 21761 D: 40469 Ptnml(0-2): 292, 9972, 21315, 10277, 336 https://tests.stockfishchess.org/tests/view/666b0a4d602682471b064db6 Passed LTC: LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 92106 W: 23471 L: 23032 D: 45603 Ptnml(0-2): 79, 10155, 25154, 10578, 87 https://tests.stockfishchess.org/tests/view/666c423d602682471b064e56 closes https://github.com/official-stockfish/Stockfish/pull/5397 bench: 1038234
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