Dev Builds » 20240603-2120

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 06:49:32 585249 4002 1491 634 1877 +75.57 ± 5.04 3 129 893 960 16 +156.3 ± 11.36
ncm-dbt-02 06:49:14 585806 4000 1529 610 1861 +81.27 ± 4.94 0 114 869 1001 16 +169.06 ± 11.51
ncm-dbt-03 06:48:06 586074 4000 1523 593 1884 +82.28 ± 4.97 1 118 843 1026 12 +172.56 ± 11.71
ncm-dbt-04 06:48:04 571076 4000 1489 584 1927 +79.99 ± 5.07 2 124 862 991 21 +165.36 ± 11.57
ncm-dbt-05 06:50:12 583911 3998 1502 667 1829 +73.65 ± 5.01 2 129 917 934 17 +151.43 ± 11.19
20000 7534 3088 9378 +78.55 ± 2.24 8 614 4384 4912 82 +162.87 ± 5.12

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
377047 ncm-dbt-01 586223 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02
377046 ncm-dbt-05 582861 498 180 79 239 +71.45 ± 14.27 0 20 108 121 0 +149.52 ± 32.88
377045 ncm-dbt-02 586012 500 190 79 231 +78.43 ± 14.6 0 19 103 126 2 +162.35 ± 33.71
377044 ncm-dbt-01 584874 500 191 76 233 +81.36 ± 14.11 0 13 113 120 4 +165.8 ± 31.92
377043 ncm-dbt-04 569509 500 177 61 262 +82.1 ± 13.98 0 15 105 129 1 +172.78 ± 33.32
377042 ncm-dbt-03 584285 500 188 74 238 +80.63 ± 13.64 0 12 114 122 2 +167.53 ± 31.71
377041 ncm-dbt-05 586646 500 190 81 229 +76.97 ± 14.56 0 19 105 124 2 +158.93 ± 33.37
377040 ncm-dbt-02 584495 500 188 73 239 +81.36 ± 13.96 0 13 112 122 3 +167.53 ± 32.08
377039 ncm-dbt-04 569789 500 200 84 216 +82.1 ± 14.56 0 16 106 124 4 +167.53 ± 33.17
377038 ncm-dbt-01 584159 500 192 86 222 +74.79 ± 14.34 0 18 110 120 2 +153.86 ± 32.54
377037 ncm-dbt-03 587877 500 187 76 237 +78.43 ± 14.17 0 15 112 120 3 +160.64 ± 32.15
377036 ncm-dbt-05 587155 500 172 80 248 +64.66 ± 14.12 0 17 128 101 4 +127.76 ± 29.76
377035 ncm-dbt-02 586858 500 200 89 211 +78.43 ± 13.88 0 14 113 121 2 +162.35 ± 31.95
377034 ncm-dbt-04 572679 500 193 65 242 +90.96 ± 14.62 0 16 93 138 3 +190.85 ± 35.52
377033 ncm-dbt-01 584495 500 173 71 256 +71.88 ± 13.96 0 17 115 117 1 +148.85 ± 31.72
377032 ncm-dbt-03 587240 500 181 80 239 +71.16 ± 14.78 0 22 107 119 2 +145.54 ± 33.06
377031 ncm-dbt-05 586393 500 198 89 213 +76.97 ± 14.7 0 17 112 116 5 +153.86 ± 32.2
377030 ncm-dbt-02 586985 500 199 68 233 +93.2 ± 13.28 0 7 108 132 3 +196.45 ± 32.45
377029 ncm-dbt-04 570669 500 187 74 239 +79.9 ± 14.36 0 15 111 120 4 +162.35 ± 32.31
377028 ncm-dbt-01 584495 500 184 87 229 +68.27 ± 14.67 1 19 114 114 2 +140.62 ± 31.94
377027 ncm-dbt-03 586943 500 199 64 237 +96.19 ± 13.95 0 12 93 143 2 +206.01 ± 35.51
377026 ncm-dbt-02 585464 500 190 77 233 +79.9 ± 14.92 0 20 100 127 3 +164.07 ± 34.22
377025 ncm-dbt-05 582318 500 189 78 233 +78.43 ± 13.11 0 10 120 119 1 +164.07 ± 30.64
377024 ncm-dbt-01 585084 500 192 82 226 +77.71 ± 14.72 1 16 108 122 3 +160.64 ± 32.85
377023 ncm-dbt-04 570428 500 184 71 245 +79.9 ± 14.21 0 16 107 125 2 +165.8 ± 33.0
377022 ncm-dbt-03 587579 500 193 72 235 +85.78 ± 14.36 0 17 96 136 1 +181.7 ± 34.95
377021 ncm-dbt-02 582110 500 191 64 245 +90.22 ± 13.07 0 8 108 133 1 +192.71 ± 32.52
377020 ncm-dbt-05 581818 500 191 82 227 +76.98 ± 14.27 1 14 112 121 2 +160.64 ± 32.15
377019 ncm-dbt-01 584874 500 191 78 231 +79.9 ± 14.36 0 18 102 129 1 +167.53 ± 33.88
377018 ncm-dbt-04 571029 500 186 79 235 +75.52 ± 14.93 1 17 110 118 4 +153.86 ± 32.54
377017 ncm-dbt-03 583782 500 189 73 238 +82.1 ± 14.56 1 17 97 135 0 +176.33 ± 34.76
377016 ncm-dbt-02 583447 500 191 76 233 +81.36 ± 13.96 0 14 109 125 2 +169.27 ± 32.62
377015 ncm-dbt-05 581319 500 192 94 214 +68.99 ± 13.56 0 14 126 108 2 +140.62 ± 29.93
377014 ncm-dbt-04 571551 500 182 85 233 +68.27 ± 13.97 1 15 121 112 1 +142.26 ± 30.77
377013 ncm-dbt-03 586477 500 204 75 221 +91.71 ± 13.57 0 10 103 135 2 +194.57 ± 33.53
377012 ncm-dbt-01 585885 500 185 74 241 +78.43 ± 13.42 0 12 116 121 1 +164.07 ± 31.39
377011 ncm-dbt-02 591082 500 180 84 236 +67.55 ± 13.95 0 19 116 115 0 +140.62 ± 31.61
377010 ncm-dbt-03 584411 500 182 79 239 +72.61 ± 13.24 0 13 121 116 0 +152.18 ± 30.64
377009 ncm-dbt-05 582778 500 190 84 226 +74.79 ± 14.63 1 18 106 124 1 +157.24 ± 33.21
377008 ncm-dbt-01 587155 500 182 80 238 +71.89 ± 14.39 1 16 115 116 2 +148.85 ± 31.72
377007 ncm-dbt-04 572961 500 180 65 255 +81.36 ± 13.96 0 14 109 125 2 +169.27 ± 32.62

Commit

Commit ID 397f47a7a1b7abe490d7bcb7a526d01555aed2be
Author Dubslow
Date 2024-06-03 21:20:02 UTC
Adjust lowest depth constants to the natural place Passed STC: https://tests.stockfishchess.org/tests/view/665ce3f8fd45fb0f907c537f LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 282784 W: 73032 L: 73082 D: 136670 Ptnml(0-2): 680, 31845, 76364, 31851, 652 Recently when I overhauled these comments, Disservin asked why these were so much lower: they're a relic from when we had a third QS stage at -5. Now we don't, so fix these to the obvious place. I was fairly sure it was nonfunctional but ran the nonreg to be double sure. closes https://github.com/official-stockfish/Stockfish/pull/5343 Bench: 1057383
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