Dev Builds » 20211123-2023

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 06:56:43 584371 4000 750 1285 1965 -46.75 ± 5.16 14 739 1016 230 1 -92.83 ± 10.64
ncm-dbt-02 06:56:02 585404 4000 739 1234 2027 -43.22 ± 5.17 11 719 1027 240 3 -86.33 ± 10.58
ncm-dbt-03 06:56:43 587142 4002 732 1268 2002 -46.81 ± 5.11 6 752 1019 220 4 -95.02 ± 10.62
ncm-dbt-04 06:56:05 571723 4000 767 1285 1948 -45.25 ± 5.19 11 742 1001 246 0 -90.04 ± 10.74
ncm-dbt-05 06:56:51 584477 3998 744 1288 1966 -47.57 ± 5.18 14 749 1004 231 1 -94.56 ± 10.71
20000 3732 6360 9908 -45.92 ± 2.31 56 3701 5067 1167 9 -91.75 ± 4.77

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
400210 ncm-dbt-03 584579 2 1 0 1 +189.7 ± 55.98 0 0 0 1 0 +1129.65 ± 376.02
400209 ncm-dbt-05 585970 498 93 147 258 -37.82 ± 15.06 1 89 122 37 0 -75.1 ± 30.91
400208 ncm-dbt-01 583656 500 101 166 233 -45.42 ± 14.68 1 94 124 31 0 -90.97 ± 30.61
400207 ncm-dbt-02 587877 500 97 153 250 -39.08 ± 14.04 1 83 137 29 0 -77.71 ± 28.83
400206 ncm-dbt-04 571833 500 92 163 245 -49.67 ± 14.38 2 93 129 26 0 -98.44 ± 29.86
400205 ncm-dbt-03 587452 500 91 151 258 -41.89 ± 14.61 1 89 130 29 1 -85.04 ± 29.79
400204 ncm-dbt-05 583698 500 92 179 229 -61.07 ± 13.68 1 103 128 18 0 -124.6 ± 29.8
400203 ncm-dbt-02 583321 500 93 158 249 -45.42 ± 14.41 1 92 128 29 0 -90.97 ± 30.05
400202 ncm-dbt-01 586731 500 96 163 241 -46.84 ± 14.22 2 89 133 26 0 -92.46 ± 29.31
400201 ncm-dbt-04 572114 500 108 160 232 -36.26 ± 15.17 1 89 121 39 0 -71.89 ± 31.04
400200 ncm-dbt-03 587197 500 88 152 260 -44.72 ± 14.64 1 93 125 31 0 -89.48 ± 30.48
400199 ncm-dbt-05 585421 500 85 160 255 -52.51 ± 14.66 2 98 123 27 0 -104.49 ± 30.71
400198 ncm-dbt-02 579992 500 91 159 250 -47.54 ± 14.53 1 95 125 29 0 -95.44 ± 30.46
400197 ncm-dbt-01 584411 500 98 160 242 -43.3 ± 14.29 1 89 131 29 0 -86.52 ± 29.64
400196 ncm-dbt-04 570469 500 99 152 249 -36.97 ± 14.7 2 83 131 34 0 -71.89 ± 29.7
400195 ncm-dbt-03 587792 500 81 168 251 -61.07 ± 14.52 0 112 113 25 0 -126.18 ± 32.14
400194 ncm-dbt-05 584117 500 97 171 232 -51.8 ± 15.4 3 99 118 29 1 -102.97 ± 31.44
400193 ncm-dbt-02 586562 500 92 143 265 -35.56 ± 14.35 2 79 137 32 0 -68.99 ± 28.88
400192 ncm-dbt-01 582987 500 99 163 238 -44.72 ± 13.83 1 87 137 25 0 -89.48 ± 28.74
400191 ncm-dbt-04 571672 500 102 169 229 -46.84 ± 15.01 1 98 118 33 0 -93.95 ± 31.44
400190 ncm-dbt-03 587367 500 85 161 254 -53.22 ± 14.82 0 105 117 27 1 -110.6 ± 31.57
400189 ncm-dbt-05 581943 500 95 160 245 -45.42 ± 14.94 2 93 123 32 0 -89.48 ± 30.76
400188 ncm-dbt-02 583112 500 88 157 255 -48.25 ± 14.43 1 95 126 28 0 -96.94 ± 30.31
400187 ncm-dbt-01 583112 500 96 148 256 -36.26 ± 14.13 0 84 134 32 0 -73.34 ± 29.28
400186 ncm-dbt-04 571793 500 85 159 256 -51.8 ± 14.88 1 102 117 30 0 -104.49 ± 31.58
400185 ncm-dbt-03 587664 500 90 166 244 -53.22 ± 14.42 2 97 126 25 0 -106.01 ± 30.26
400184 ncm-dbt-05 585674 500 91 149 260 -40.48 ± 14.26 1 86 133 30 0 -80.63 ± 29.38
400183 ncm-dbt-02 586054 500 83 149 268 -46.13 ± 13.91 1 89 135 25 0 -92.46 ± 29.02
400182 ncm-dbt-01 584664 500 88 160 252 -50.38 ± 15.7 3 100 114 32 1 -99.95 ± 32.0
400181 ncm-dbt-04 572114 500 94 169 237 -52.51 ± 14.79 2 99 121 28 0 -104.49 ± 31.0
400180 ncm-dbt-03 587409 500 97 160 243 -44.01 ± 13.92 1 87 136 26 0 -88.0 ± 28.9
400179 ncm-dbt-04 570228 500 97 159 244 -43.3 ± 14.02 1 87 135 27 0 -86.52 ± 29.06
400178 ncm-dbt-02 586308 500 92 169 239 -53.93 ± 16.0 4 102 113 29 2 -107.54 ± 32.15
400177 ncm-dbt-01 584706 500 82 164 254 -57.5 ± 14.49 4 96 128 22 0 -112.14 ± 29.92
400176 ncm-dbt-05 585379 500 97 160 243 -44.01 ± 14.86 2 91 125 32 0 -86.52 ± 30.48
400175 ncm-dbt-03 586943 500 92 153 255 -42.6 ± 13.98 0 88 136 25 1 -88.0 ± 28.9
400174 ncm-dbt-05 583614 500 94 162 244 -47.54 ± 14.26 2 90 132 26 0 -93.95 ± 29.45
400173 ncm-dbt-02 590010 500 103 146 251 -29.95 ± 15.02 0 84 126 39 1 -61.79 ± 30.39
400172 ncm-dbt-04 573568 500 90 154 256 -44.72 ± 14.37 1 91 129 29 0 -89.48 ± 29.91
400171 ncm-dbt-03 587877 500 107 157 236 -34.86 ± 14.44 1 81 136 31 1 -70.44 ± 29.01
400170 ncm-dbt-01 584706 500 90 161 249 -49.67 ± 15.29 2 100 115 33 0 -98.44 ± 31.86

Commit

Commit ID 092b27a6d0174f619fff9a53099ac9fdc5c2cb4e
Author Stefan Geschwentner
Date 2021-11-23 20:23:28 UTC
Less futility pruning. Disable futility pruning at former PV nodes stored in the transposition table. STC: LLR: 2.96 (-2.94,2.94) <0.00,2.50> Total: 102256 W: 25708 L: 25318 D: 51230 Ptnml(0-2): 276, 11511, 27168, 11893, 280 https://tests.stockfishchess.org/tests/view/61990b3135c7c6348cb602db LTC: LLR: 2.96 (-2.94,2.94) <0.50,3.00> Total: 183304 W: 46027 L: 45408 D: 91869 Ptnml(0-2): 96, 19029, 52778, 19658, 91 https://tests.stockfishchess.org/tests/view/619a0d1b35c7c6348cb603bc closes https://github.com/official-stockfish/Stockfish/pull/3804 Bench: 7334766
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