Dev Builds » 20230401-1428

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 06:55:34 583087 4000 1275 793 1932 +42.07 ± 5.17 6 235 1041 707 11 +84.49 ± 10.5
ncm-dbt-02 06:56:47 584190 4000 1255 790 1955 +40.57 ± 5.25 6 260 1004 723 7 +82.1 ± 10.73
ncm-dbt-03 06:58:25 585874 4002 1241 810 1951 +37.56 ± 5.08 5 244 1074 671 7 +75.66 ± 10.31
ncm-dbt-04 06:57:46 571302 4000 1231 786 1983 +38.81 ± 5.01 2 237 1081 674 6 +77.89 ± 10.26
ncm-dbt-05 06:58:05 585053 3998 1209 783 2006 +37.16 ± 5.22 5 268 1030 688 8 +74.65 ± 10.58
20000 6211 3962 9827 +39.24 ± 2.3 24 1244 5230 3463 39 +78.95 ± 4.68

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
410150 ncm-dbt-03 586689 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02
410149 ncm-dbt-05 585801 498 150 88 260 +43.48 ± 14.21 0 29 129 91 0 +88.37 ± 29.9
410148 ncm-dbt-04 569509 500 151 101 248 +34.86 ± 13.34 0 26 149 74 1 +68.99 ± 27.14
410147 ncm-dbt-01 583656 500 154 94 252 +41.89 ± 15.25 2 31 123 93 1 +86.52 ± 30.76
410146 ncm-dbt-03 586223 500 165 106 229 +41.19 ± 14.03 1 25 139 84 1 +83.57 ± 28.49
410145 ncm-dbt-02 584034 500 145 103 252 +29.25 ± 16.18 1 47 113 87 2 +57.5 ± 32.05
410144 ncm-dbt-04 572921 500 156 103 241 +36.97 ± 15.08 0 39 119 92 0 +74.79 ± 31.31
410143 ncm-dbt-05 583740 500 152 88 260 +44.72 ± 15.53 1 33 120 93 3 +88.0 ± 31.17
410142 ncm-dbt-01 583698 500 165 105 230 +41.89 ± 14.48 0 31 129 89 1 +83.57 ± 29.93
410141 ncm-dbt-02 585759 500 153 92 255 +42.6 ± 15.16 1 34 118 97 0 +88.0 ± 31.44
410140 ncm-dbt-03 586393 500 149 99 252 +34.86 ± 14.31 0 34 132 84 0 +70.44 ± 29.57
410139 ncm-dbt-05 583950 500 143 87 270 +39.08 ± 15.08 0 36 124 88 2 +76.25 ± 30.64
410138 ncm-dbt-04 571551 500 154 106 240 +33.46 ± 13.39 0 27 149 73 1 +66.1 ± 27.17
410137 ncm-dbt-01 583908 500 158 99 243 +41.19 ± 14.3 1 27 135 86 1 +83.57 ± 29.08
410136 ncm-dbt-03 587707 500 160 113 227 +32.75 ± 15.2 0 38 131 77 4 +60.36 ± 29.73
410135 ncm-dbt-02 586604 500 155 96 249 +41.19 ± 14.43 1 29 130 90 0 +85.04 ± 29.79
410134 ncm-dbt-04 570989 500 152 95 253 +39.78 ± 15.0 1 33 125 90 1 +80.63 ± 30.5
410133 ncm-dbt-01 584201 500 158 112 230 +32.05 ± 14.64 0 37 131 81 1 +63.23 ± 29.72
410132 ncm-dbt-05 586901 500 149 94 257 +38.37 ± 15.29 1 36 121 91 1 +77.71 ± 31.04
410131 ncm-dbt-03 583489 500 156 106 238 +34.86 ± 14.17 1 29 140 79 1 +70.44 ± 28.44
410130 ncm-dbt-02 582611 500 168 106 226 +43.3 ± 15.07 1 31 125 91 2 +86.52 ± 30.48
410129 ncm-dbt-01 581985 500 154 101 245 +36.97 ± 14.96 1 35 124 90 0 +76.25 ± 30.64
410128 ncm-dbt-04 570029 500 173 97 230 +53.22 ± 14.29 0 25 125 99 1 +107.54 ± 30.4
410127 ncm-dbt-03 586223 500 162 82 256 +56.07 ± 14.56 1 24 119 106 0 +116.78 ± 31.26
410126 ncm-dbt-02 587409 500 164 94 242 +48.96 ± 13.93 0 24 133 92 1 +98.44 ± 29.27
410125 ncm-dbt-05 584411 500 154 104 242 +34.86 ± 14.17 0 32 137 80 1 +68.99 ± 28.88
410124 ncm-dbt-01 581860 500 172 99 229 +51.09 ± 14.31 1 22 132 93 2 +102.97 ± 29.38
410123 ncm-dbt-04 572437 500 152 85 263 +46.84 ± 14.09 0 26 132 91 1 +93.95 ± 29.45
410122 ncm-dbt-05 581777 500 149 107 244 +29.25 ± 14.84 0 40 129 80 1 +57.5 ± 30.0
410121 ncm-dbt-03 586985 500 146 102 252 +30.65 ± 14.68 1 35 134 79 1 +61.79 ± 29.32
410120 ncm-dbt-02 579248 500 164 98 238 +46.13 ± 15.36 0 35 116 97 2 +90.97 ± 31.72
410119 ncm-dbt-01 583908 500 165 94 241 +49.67 ± 14.77 0 27 129 90 4 +95.44 ± 29.88
410118 ncm-dbt-04 570909 500 147 100 253 +32.75 ± 13.9 0 31 142 76 1 +64.66 ± 28.2
410117 ncm-dbt-05 586181 500 153 106 241 +32.76 ± 14.3 2 29 139 80 0 +68.99 ± 28.6
410116 ncm-dbt-03 585464 500 150 101 249 +34.16 ± 13.58 0 29 143 78 0 +68.99 ± 28.02
410115 ncm-dbt-02 580240 500 149 106 245 +29.95 ± 14.24 2 30 141 77 0 +63.23 ± 28.35
410114 ncm-dbt-01 581485 500 149 89 262 +41.89 ± 14.07 1 25 138 85 1 +85.04 ± 28.63
410113 ncm-dbt-04 572074 500 146 99 255 +32.76 ± 14.03 1 30 140 79 0 +67.55 ± 28.46
410112 ncm-dbt-02 587622 500 157 95 248 +43.3 ± 14.29 0 30 128 92 0 +88.0 ± 30.06
410111 ncm-dbt-05 587664 500 159 109 232 +34.86 ± 14.57 1 33 131 85 0 +71.89 ± 29.7
410110 ncm-dbt-03 583698 500 152 101 247 +35.56 ± 14.22 1 30 136 83 0 +73.34 ± 29.0

Commit

Commit ID 6a6e32dfc80488dfdcd6c23e601063b47729e890
Author FauziAkram
Date 2023-04-01 14:28:52 UTC
Decrease Depth more for positions not in TT. If the position is not in TT, decrease depth by 2 or by 4 if the TT entry for the current position was hit and the stored depth is greater than or equal to the current depth. Many thanks to Vizvezdenec as the main idea was his. Passed STC: LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 70664 W: 18995 L: 18639 D: 33030 Ptnml(0-2): 228, 7712, 19090, 8080, 222 https://tests.stockfishchess.org/tests/view/64258a8bdb43ab2ba6f9b682 Passed LTC: LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 85040 W: 23227 L: 22836 D: 38977 Ptnml(0-2): 26, 8115, 25867, 8466, 46 https://tests.stockfishchess.org/tests/view/64262057db43ab2ba6f9d0e7 closes https://github.com/official-stockfish/Stockfish/pull/4482 bench: 4380438
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