Dev Builds » 20240820-1931

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 06:51:23 583815 3994 1523 583 1888 +83.33 ± 4.92 3 102 856 1024 12 +175.53 ± 11.59
ncm-dbt-02 06:51:40 587125 4006 1523 620 1863 +79.68 ± 4.94 1 115 882 990 15 +165.73 ± 11.42
ncm-dbt-03 06:51:26 588104 4020 1505 603 1912 +79.31 ± 5.11 4 137 835 1021 13 +165.92 ± 11.78
ncm-dbt-04 06:52:56 555715 3984 1488 534 1962 +84.84 ± 4.96 0 111 831 1035 15 +177.83 ± 11.79
ncm-dbt-05 06:52:33 581138 3996 1505 609 1882 +79.25 ± 4.97 2 116 878 988 14 +165.12 ± 11.45
20000 7544 2949 9507 +81.27 ± 2.23 10 581 4282 5058 69 +169.97 ± 5.19

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
373514 ncm-dbt-02 585379 6 2 2 2 0.0 ± 11.34 0 0 3 0 0 -0.0 ± 10.15
373513 ncm-dbt-03 586308 20 6 2 12 +70.4 ± 55.57 0 0 6 4 0 +147.13 ± 135.14
373512 ncm-dbt-04 557558 484 188 71 225 +85.68 ± 14.22 0 12 104 123 3 +177.7 ± 33.37
373511 ncm-dbt-05 580779 496 183 81 232 +72.48 ± 14.77 0 21 106 119 2 +148.53 ± 33.21
373510 ncm-dbt-01 582569 494 184 87 223 +69.12 ± 14.83 1 20 108 117 1 +144.19 ± 32.89
373509 ncm-dbt-02 590567 500 192 77 231 +81.36 ± 14.54 0 16 107 123 4 +165.8 ± 33.0
373508 ncm-dbt-03 588089 500 185 70 245 +81.36 ± 13.66 0 13 110 126 1 +171.02 ± 32.42
373507 ncm-dbt-04 554780 500 193 62 245 +93.2 ± 14.51 0 14 95 137 4 +194.57 ± 35.13
373506 ncm-dbt-01 583363 500 196 76 228 +85.04 ± 13.28 0 10 111 128 1 +179.9 ± 32.11
373505 ncm-dbt-05 581652 500 187 77 236 +77.7 ± 13.56 0 12 118 118 2 +160.64 ± 31.07
373504 ncm-dbt-02 587325 500 199 80 221 +84.3 ± 13.11 0 7 120 120 3 +174.55 ± 30.42
373503 ncm-dbt-03 589411 500 183 64 253 +84.31 ± 15.98 2 22 83 141 2 +179.9 ± 37.23
373502 ncm-dbt-04 555804 500 189 73 238 +82.1 ± 13.83 0 15 104 131 0 +174.55 ± 33.5
373501 ncm-dbt-01 585548 500 186 69 245 +82.83 ± 13.07 0 8 119 121 2 +172.78 ± 30.66
373500 ncm-dbt-05 580987 500 190 71 239 +84.31 ± 14.9 1 16 99 131 3 +176.33 ± 34.4
373499 ncm-dbt-02 587197 500 190 69 241 +85.78 ± 13.92 0 14 102 133 1 +181.7 ± 33.83
373498 ncm-dbt-03 587325 500 193 69 238 +88.0 ± 13.81 0 13 101 135 1 +187.16 ± 33.99
373497 ncm-dbt-01 583656 500 201 75 224 +89.48 ± 14.44 1 13 97 137 2 +190.85 ± 34.75
373496 ncm-dbt-04 555728 500 188 60 252 +90.96 ± 14.02 0 12 101 134 3 +190.85 ± 33.97
373495 ncm-dbt-05 581527 500 194 66 240 +90.96 ± 13.08 0 8 107 134 1 +194.57 ± 32.69
373494 ncm-dbt-02 584076 500 189 80 231 +76.97 ± 14.7 0 20 103 125 2 +158.93 ± 33.71
373493 ncm-dbt-03 587537 500 193 73 234 +85.04 ± 13.75 0 11 111 125 3 +176.33 ± 32.16
373492 ncm-dbt-04 555121 500 186 70 244 +82.1 ± 13.37 0 11 113 125 1 +172.78 ± 31.83
373491 ncm-dbt-01 585084 500 187 73 240 +80.63 ± 14.09 1 13 108 127 1 +171.02 ± 32.78
373490 ncm-dbt-05 580738 500 186 88 226 +68.99 ± 14.0 0 18 117 114 1 +142.26 ± 31.44
373489 ncm-dbt-02 584537 500 188 79 233 +76.97 ± 13.38 0 12 118 119 1 +160.64 ± 31.07
373488 ncm-dbt-03 586774 500 185 85 230 +70.43 ± 14.34 0 19 114 115 2 +143.89 ± 31.92
373487 ncm-dbt-04 554932 500 180 67 253 +79.9 ± 14.36 0 17 105 126 2 +165.8 ± 33.35
373486 ncm-dbt-01 584076 500 182 67 251 +81.36 ± 13.81 0 13 111 124 2 +169.27 ± 32.25
373485 ncm-dbt-02 586604 500 192 81 227 +78.43 ± 14.31 0 18 104 127 1 +164.07 ± 33.53
373484 ncm-dbt-05 579413 500 191 82 227 +76.97 ± 13.23 0 10 123 115 2 +158.93 ± 30.17
373483 ncm-dbt-03 589368 500 186 83 231 +72.61 ± 15.1 0 25 98 126 1 +150.51 ± 34.5
373482 ncm-dbt-01 583614 500 192 69 239 +87.26 ± 14.1 0 15 98 136 1 +185.33 ± 34.57
373481 ncm-dbt-05 582569 500 195 73 232 +86.52 ± 14.23 1 14 97 138 0 +187.16 ± 34.76
373480 ncm-dbt-04 556299 500 189 68 243 +85.78 ± 14.07 0 15 100 134 1 +181.7 ± 34.21
373479 ncm-dbt-03 586139 500 193 85 222 +76.25 ± 14.67 2 14 110 122 2 +160.64 ± 32.5
373478 ncm-dbt-02 590438 500 191 71 238 +85.04 ± 13.9 0 14 103 132 1 +179.9 ± 33.65
373477 ncm-dbt-01 582611 500 195 67 238 +90.96 ± 13.56 0 10 104 134 2 +192.71 ± 33.34
373476 ncm-dbt-03 591986 500 181 72 247 +76.97 ± 14.56 0 20 102 127 1 +160.64 ± 33.88
373475 ncm-dbt-02 588004 500 180 81 239 +69.71 ± 14.03 1 14 122 111 2 +143.89 ± 30.58
373474 ncm-dbt-04 555500 500 175 63 262 +79.17 ± 13.9 0 15 109 125 1 +165.8 ± 32.64
373473 ncm-dbt-05 581444 500 179 71 250 +76.25 ± 14.39 0 17 111 119 3 +155.54 ± 32.36

Commit

Commit ID 6cf7f300acc88df277da64b754c436462f48dadf
Author Nonlinear2
Date 2024-08-20 19:31:33 UTC
Simplify stand pat adjustement Remove && !PvNode condition for stand pat adjustement in quiescence search. Passed non-regression STC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 108544 W: 28228 L: 28085 D: 52231 Ptnml(0-2): 389, 12902, 27554, 13031, 396 https://tests.stockfishchess.org/tests/view/66bb402e4ff211be9d4ee688 Passed non-regression LTC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 193014 W: 48796 L: 48751 D: 95467 Ptnml(0-2): 188, 21481, 53116, 21542, 180 https://tests.stockfishchess.org/tests/view/66bc78774ff211be9d4ee88f closes https://github.com/official-stockfish/Stockfish/pull/5538 Bench 1787360
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