Dev Builds » 20230412-1843

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 06:59:23 582979 3988 1234 799 1955 +38.05 ± 5.18 4 262 1029 693 6 +76.67 ± 10.58
ncm-dbt-02 06:57:32 585824 4012 1243 773 1996 +40.89 ± 5.04 2 232 1077 684 11 +81.3 ± 10.29
ncm-dbt-03 06:57:22 585765 4000 1250 778 1972 +41.19 ± 5.27 4 265 995 727 9 +82.65 ± 10.78
ncm-dbt-04 06:56:59 569498 4000 1256 803 1941 +39.52 ± 5.02 2 236 1076 679 7 +79.17 ± 10.29
ncm-dbt-05 06:58:10 580279 4000 1236 788 1976 +39.08 ± 5.04 3 239 1070 683 5 +78.8 ± 10.33
20000 6219 3941 9840 +39.75 ± 2.29 15 1234 5247 3466 38 +79.72 ± 4.67

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
428148 ncm-dbt-02 585843 12 4 2 6 +58.38 ± 172.05 0 2 1 2 1 +58.45 ± 350.58 ↓
428147 ncm-dbt-01 580240 488 164 95 229 +49.45 ± 15.04 0 29 119 94 2 +97.91 ± 31.27 ↓
428146 ncm-dbt-04 570308 500 159 96 245 +44.01 ± 14.2 0 29 129 92 0 +89.48 ± 29.91 ↓
428145 ncm-dbt-05 582736 500 156 102 242 +37.67 ± 13.95 0 29 139 81 1 +74.79 ± 28.56 ↓
428144 ncm-dbt-03 584243 500 157 99 244 +40.48 ± 14.91 1 32 126 90 1 +82.1 ± 30.36 ↓
428143 ncm-dbt-02 587325 500 145 85 270 +41.89 ± 14.87 1 31 126 91 1 +85.04 ± 30.35 ↓
428142 ncm-dbt-01 583489 500 154 106 240 +33.46 ± 14.61 2 31 134 83 0 +70.44 ± 29.29 ↓
428141 ncm-dbt-04 570068 500 166 92 242 +51.8 ± 15.27 1 29 117 101 2 +104.49 ± 31.58 ↓
428140 ncm-dbt-05 579744 500 158 108 234 +34.86 ± 14.83 1 33 133 81 2 +68.99 ± 29.43 ↓
428139 ncm-dbt-03 586774 500 152 95 253 +39.78 ± 15.38 2 32 125 89 2 +80.63 ± 30.5 ↓
428138 ncm-dbt-02 582778 500 144 104 252 +27.85 ± 14.62 0 38 136 74 2 +53.22 ± 29.08 ↓
428137 ncm-dbt-01 584411 500 143 92 265 +35.56 ± 13.67 0 29 141 80 0 +71.89 ± 28.29 ↓
428136 ncm-dbt-05 582903 500 153 95 252 +40.48 ± 14.39 0 32 128 90 0 +82.1 ± 30.08 ↓
428135 ncm-dbt-04 571793 500 165 114 221 +35.56 ± 13.67 0 28 144 77 1 +70.44 ± 27.87 ↓
428134 ncm-dbt-03 585590 500 159 92 249 +46.84 ± 14.62 0 30 124 95 1 +93.95 ± 30.6 ↓
428133 ncm-dbt-02 586181 500 156 107 237 +34.16 ± 14.39 1 29 143 74 3 +66.1 ± 28.04 ↓
428132 ncm-dbt-01 585169 500 160 99 241 +42.6 ± 16.02 2 36 113 97 2 +86.52 ± 32.11 ↓
428131 ncm-dbt-04 568474 500 156 102 242 +37.67 ± 13.67 0 27 143 79 1 +74.79 ± 27.98 ↓
428130 ncm-dbt-05 578506 500 152 100 248 +36.26 ± 13.72 0 27 146 75 2 +70.44 ± 27.57 ↓
428129 ncm-dbt-02 590267 500 169 101 230 +47.54 ± 13.99 0 25 133 91 1 +95.44 ± 29.29 ↓
428128 ncm-dbt-03 585337 500 146 94 260 +36.26 ± 13.99 0 30 139 80 1 +71.89 ± 28.58 ↓
428127 ncm-dbt-01 583447 500 145 95 260 +34.86 ± 14.83 0 36 130 82 2 +67.55 ± 29.85 ↓
428126 ncm-dbt-02 587494 500 148 94 258 +37.67 ± 14.22 0 31 135 83 1 +74.79 ± 29.13 ↓
428125 ncm-dbt-05 579455 500 153 94 253 +41.19 ± 14.3 0 31 129 90 0 +83.57 ± 29.93 ↓
428124 ncm-dbt-04 569789 500 147 86 267 +42.6 ± 14.91 0 33 125 90 2 +83.57 ± 30.49 ↓
428123 ncm-dbt-03 585379 500 152 101 247 +35.56 ± 14.35 0 34 131 85 0 +71.89 ± 29.7 ↓
428122 ncm-dbt-01 582152 500 149 102 249 +32.76 ± 14.43 0 36 131 83 0 +66.1 ± 29.72 ↓
428121 ncm-dbt-03 586858 500 168 104 228 +44.72 ± 14.9 1 29 127 91 2 +89.48 ± 30.19 ↓
428120 ncm-dbt-05 583112 500 165 94 241 +49.67 ± 14.51 1 26 124 99 0 +102.97 ± 30.57 ↓
428119 ncm-dbt-02 586477 500 155 97 248 +40.48 ± 13.43 0 25 142 83 0 +82.1 ± 28.06 ↓
428118 ncm-dbt-04 566336 500 156 108 236 +33.46 ± 13.67 0 30 142 78 0 +67.55 ± 28.18 ↓
428117 ncm-dbt-03 586731 500 150 95 255 +38.37 ± 15.29 0 39 118 92 1 +76.25 ± 31.44 ↓
428116 ncm-dbt-02 586477 500 168 93 239 +52.51 ± 13.84 0 22 132 95 1 +106.01 ± 29.35 ↓
428115 ncm-dbt-01 583070 500 158 103 239 +38.37 ± 14.4 0 33 129 88 0 +77.71 ± 29.96 ↓
428114 ncm-dbt-05 578136 500 154 92 254 +43.3 ± 14.29 0 30 128 92 0 +88.0 ± 30.06 ↓
428113 ncm-dbt-04 568991 500 156 100 244 +39.08 ± 13.62 1 24 143 82 0 +80.63 ± 27.93 ↓
428112 ncm-dbt-02 579578 500 154 90 256 +44.72 ± 14.37 0 29 129 91 1 +89.48 ± 29.91 ↓
428111 ncm-dbt-04 570228 500 151 105 244 +32.05 ± 14.52 0 36 133 80 1 +63.23 ± 29.45 ↓
428110 ncm-dbt-03 585211 500 166 98 236 +47.54 ± 15.8 0 39 105 105 1 +95.44 ± 33.2 ↓
428109 ncm-dbt-01 581860 500 161 107 232 +37.67 ± 14.22 0 32 132 86 0 +76.25 ± 29.54 ↓
428108 ncm-dbt-05 577643 500 145 103 252 +29.25 ± 13.92 1 31 143 75 0 +60.36 ± 28.08 ↓

Commit

Commit ID 9829bceda90d025a5f5d7c04457902413e367041
Author Stefan Geschwentner
Date 2023-04-12 18:43:08 UTC
Remove good killer reduction rule. STC: LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 246544 W: 65646 L: 65657 D: 115241 Ptnml(0-2): 706, 27350, 67138, 27405, 673 https://tests.stockfishchess.org/tests/view/642e253277ff3301150e9aa2 LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 165136 W: 44878 L: 44809 D: 75449 Ptnml(0-2): 64, 15991, 50378, 16082, 53 https://tests.stockfishchess.org/tests/view/6430db07028b029b01acd87f closes https://github.com/official-stockfish/Stockfish/pull/4519 Bench: 3746080
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