Dev Builds » 20220709-0853

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 06:58:23 584478 4034 1131 996 1907 +11.63 ± 5.18 3 387 1109 508 10 +22.08 ± 10.17
ncm-dbt-02 06:55:26 586773 4000 1118 962 1920 +13.56 ± 5.14 5 363 1108 519 5 +27.16 ± 10.16
ncm-dbt-03 06:56:47 581521 3978 1142 926 1910 +18.88 ± 5.23 7 342 1073 562 5 +38.23 ± 10.35
ncm-dbt-04 06:58:14 565431 3994 1078 950 1966 +11.14 ± 5.22 8 377 1098 507 7 +22.47 ± 10.22
ncm-dbt-05 06:56:50 578428 3994 1167 1013 1814 +13.4 ± 5.2 5 364 1113 502 13 +25.45 ± 10.13
20000 5636 4847 9517 +13.71 ± 2.32 28 1833 5501 2598 40 +27.05 ± 4.56

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
379651 ncm-dbt-01 584832 34 13 8 13 +51.44 ± 70.54 0 3 7 6 1 +83.31 ± 135.17
379650 ncm-dbt-03 586901 398 121 101 176 +17.48 ± 16.99 2 34 105 58 0 +38.57 ± 33.25
379649 ncm-dbt-04 569909 408 107 106 195 +0.85 ± 16.45 2 42 113 47 0 +5.11 ± 31.93
379648 ncm-dbt-05 583950 424 128 108 188 +16.4 ± 17.06 0 45 104 61 2 +29.57 ± 33.49
379647 ncm-dbt-02 586774 500 151 128 221 +15.99 ± 15.02 0 49 130 70 1 +30.65 ± 29.9
379646 ncm-dbt-01 585295 500 132 134 234 -1.39 ± 14.03 0 54 144 52 0 -2.78 ± 28.1
379645 ncm-dbt-03 587494 500 138 121 241 +11.82 ± 15.79 1 54 124 69 2 +22.27 ± 30.66
379644 ncm-dbt-04 571471 500 109 121 270 -8.34 ± 14.39 0 61 141 47 1 -18.08 ± 28.49
379643 ncm-dbt-05 584537 500 153 118 229 +24.36 ± 15.26 2 40 130 77 1 +50.38 ± 29.88
379642 ncm-dbt-02 587452 500 148 128 224 +13.9 ± 14.6 0 48 134 68 0 +27.85 ± 29.39
379641 ncm-dbt-01 583279 500 148 125 227 +15.99 ± 14.51 1 43 138 68 0 +33.46 ± 28.86
379640 ncm-dbt-03 586012 500 143 100 257 +29.95 ± 13.84 1 30 144 75 0 +61.79 ± 27.93
379639 ncm-dbt-05 587749 500 142 123 235 +13.21 ± 14.02 0 42 149 57 2 +23.66 ± 27.4
379638 ncm-dbt-04 569909 500 148 131 221 +11.82 ± 13.9 0 43 148 58 1 +22.27 ± 27.54
379637 ncm-dbt-02 588856 500 135 115 250 +13.9 ± 14.08 2 37 151 59 1 +29.25 ± 27.11
379636 ncm-dbt-01 582527 500 133 117 250 +11.12 ± 14.11 0 45 145 59 1 +20.87 ± 27.95
379635 ncm-dbt-03 530489 500 145 124 231 +14.6 ± 14.4 0 46 137 67 0 +29.25 ± 29.0
379634 ncm-dbt-05 523082 500 143 124 233 +13.21 ± 15.29 0 51 132 64 3 +22.27 ± 29.65
379633 ncm-dbt-04 509990 500 134 123 243 +7.64 ± 15.93 2 55 125 66 2 +15.3 ± 30.53
379632 ncm-dbt-05 582987 70 21 21 28 -0.0 ± 33.81 0 6 23 6 0 -0.0 ± 68.26
379631 ncm-dbt-03 588302 80 23 17 40 +26.11 ± 43.11 1 6 20 12 1 +52.51 ± 77.46
379630 ncm-dbt-02 587494 500 124 106 270 +12.51 ± 14.74 0 50 132 68 0 +25.06 ± 29.65
379629 ncm-dbt-04 572638 86 24 14 48 +40.58 ± 31.88 0 4 25 14 0 +82.3 ± 67.25
379628 ncm-dbt-01 584411 500 137 135 228 +1.39 ± 14.8 1 54 138 56 1 +2.78 ± 28.89
379627 ncm-dbt-05 579951 500 145 117 238 +19.48 ± 14.26 1 37 147 63 2 +37.67 ± 27.63
379626 ncm-dbt-03 589497 500 146 122 232 +16.69 ± 14.31 0 43 141 65 1 +32.05 ± 28.47
379625 ncm-dbt-02 587579 500 142 124 234 +12.51 ± 14.36 0 46 141 62 1 +23.66 ± 28.48
379624 ncm-dbt-04 573689 500 146 119 235 +18.78 ± 14.73 0 44 137 67 2 +34.86 ± 28.99
379623 ncm-dbt-01 585843 500 135 110 255 +17.38 ± 15.24 0 50 126 73 1 +33.46 ± 30.41
379622 ncm-dbt-03 587282 500 148 117 235 +21.57 ± 14.55 1 39 139 70 1 +43.3 ± 28.7
379621 ncm-dbt-05 589027 500 133 123 244 +6.95 ± 14.53 1 48 142 58 1 +13.9 ± 28.36
379620 ncm-dbt-02 585379 500 124 122 254 +1.39 ± 14.03 1 48 150 50 1 +2.78 ± 27.29
379619 ncm-dbt-04 572800 500 138 110 252 +19.48 ± 15.4 2 45 126 77 0 +41.89 ± 30.41
379618 ncm-dbt-01 584495 500 135 132 233 +2.08 ± 15.72 1 59 129 58 3 +1.39 ± 30.04
379617 ncm-dbt-02 587834 500 151 118 231 +22.96 ± 15.03 0 45 128 76 1 +44.72 ± 30.15
379616 ncm-dbt-05 588430 500 152 144 204 +5.56 ± 14.79 1 51 138 59 1 +11.12 ± 28.89
379615 ncm-dbt-03 589112 500 138 115 247 +15.99 ± 15.26 1 49 126 74 0 +33.46 ± 30.41
379614 ncm-dbt-04 575109 500 140 118 242 +15.3 ± 14.58 2 41 140 67 0 +33.46 ± 28.6
379613 ncm-dbt-01 583782 500 143 114 243 +20.17 ± 14.7 0 43 137 68 2 +37.67 ± 28.99
379612 ncm-dbt-02 582819 500 143 121 236 +15.3 ± 14.45 2 40 142 66 0 +33.46 ± 28.33
379611 ncm-dbt-05 586139 500 150 135 215 +10.42 ± 13.92 0 44 148 57 1 +19.48 ± 27.55
379610 ncm-dbt-03 588600 500 140 109 251 +21.57 ± 14.29 0 41 137 72 0 +43.3 ± 28.97
379609 ncm-dbt-04 573365 500 132 108 260 +16.69 ± 14.17 0 42 143 64 1 +32.05 ± 28.2
379608 ncm-dbt-01 585843 500 155 121 224 +23.66 ± 13.92 0 36 145 68 1 +46.13 ± 27.87

Commit

Commit ID aa18b68033403ee2d8d49df783cab32e6bccf59c
Author Dubslow
Date 2022-07-09 08:53:17 UTC
Time mgmt fix division. oversight changed the corresponding float division to integer division in a previous tune https://github.com/official-stockfish/Stockfish/commit/442c40b43de8ede1e424efa674c8d45322e3b43c it is stronger to keep the original float division. green LTC: https://tests.stockfishchess.org/tests/view/62bf34bc0340fb1e0cc934e7 LLR: 2.94 (-2.94,2.94) <0.50,3.00> Total: 38952 W: 10738 L: 10467 D: 17747 Ptnml(0-2): 46, 3576, 11968, 3833, 53 yellow STC: https://tests.stockfishchess.org/tests/view/62bff6506178ffe6394ba1d1 LLR: -2.95 (-2.94,2.94) <0.00,2.50> Total: 226960 W: 61265 L: 61062 D: 104633 Ptnml(0-2): 938, 24398, 62582, 24647, 915 further slightly tweaked tests confirm this Elo gain. closes https://github.com/official-stockfish/Stockfish/pull/4097 No functional change
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