Dev Builds » 20230223-1225

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 06:57:55 583491 4000 1221 848 1931 +32.49 ± 5.02 4 260 1098 635 3 +65.74 ± 10.18
ncm-dbt-02 06:59:24 586814 4000 1219 794 1987 +37.05 ± 5.06 3 252 1066 675 4 +74.79 ± 10.36
ncm-dbt-03 06:59:23 584623 4000 1193 829 1978 +31.7 ± 5.23 0 306 1033 652 9 +62.33 ± 10.57
ncm-dbt-04 07:00:17 568988 4000 1173 817 2010 +31.0 ± 5.05 1 276 1097 618 8 +61.25 ± 10.19
ncm-dbt-05 06:58:49 580492 4000 1241 831 1928 +35.74 ± 5.07 4 254 1075 662 5 +72.07 ± 10.31
20000 6047 4119 9834 +33.6 ± 2.28 12 1348 5369 3242 29 +67.22 ± 4.62

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
430217 ncm-dbt-05 583614 500 161 112 227 +34.16 ± 13.58 0 29 143 78 0 +68.99 ± 28.02 ↓
430216 ncm-dbt-02 585337 500 147 98 255 +34.16 ± 14.39 0 35 131 84 0 +68.99 ± 29.71 ↓
430215 ncm-dbt-01 584495 500 142 107 251 +24.36 ± 14.11 1 35 142 72 0 +50.38 ± 28.27 ↓
430214 ncm-dbt-03 585801 500 149 123 228 +18.08 ± 14.8 0 46 133 70 1 +34.86 ± 29.51 ↓
430213 ncm-dbt-04 569190 500 142 91 267 +35.56 ± 13.95 0 31 137 82 0 +71.89 ± 28.86 ↓
430212 ncm-dbt-05 583698 500 146 95 259 +35.56 ± 15.0 2 32 130 85 1 +73.34 ± 29.83 ↓
430211 ncm-dbt-02 587664 500 150 92 258 +40.48 ± 14.52 0 32 129 88 1 +80.63 ± 29.95 ↓
430210 ncm-dbt-03 583992 500 151 93 256 +40.48 ± 15.17 0 36 122 90 2 +79.17 ± 30.91 ↓
430209 ncm-dbt-01 583237 500 153 106 241 +32.76 ± 14.03 0 33 137 80 0 +66.1 ± 28.89 ↓
430208 ncm-dbt-04 567640 500 147 98 255 +34.16 ± 13.44 0 28 145 77 0 +68.99 ± 27.73 ↓
430207 ncm-dbt-05 579744 500 165 109 226 +39.08 ± 15.46 0 38 121 88 3 +74.79 ± 31.04 ↓
430206 ncm-dbt-01 584327 500 161 111 228 +34.86 ± 14.83 1 35 127 87 0 +71.89 ± 30.24 ↓
430205 ncm-dbt-03 585211 500 139 106 255 +22.96 ± 14.66 0 43 131 76 0 +46.13 ± 29.76 ↓
430204 ncm-dbt-02 586097 500 147 95 258 +36.26 ± 15.17 0 38 124 86 2 +70.44 ± 30.65 ↓
430203 ncm-dbt-04 568236 500 150 105 245 +31.35 ± 14.6 0 38 129 83 0 +63.23 ± 29.99 ↓
430202 ncm-dbt-05 574459 500 153 105 242 +33.46 ± 14.61 2 31 134 83 0 +70.44 ± 29.29 ↓
430201 ncm-dbt-01 582569 500 160 118 222 +29.25 ± 13.79 0 33 142 75 0 +58.93 ± 28.23 ↓
430200 ncm-dbt-03 584958 500 145 103 252 +29.25 ± 15.46 0 43 125 79 3 +54.65 ± 30.53 ↓
430199 ncm-dbt-02 588047 500 157 109 234 +33.46 ± 13.53 0 29 144 77 0 +67.55 ± 27.89 ↓
430198 ncm-dbt-04 568872 500 151 101 248 +34.86 ± 13.76 0 28 146 74 2 +67.55 ± 27.6 ↓
429981 ncm-dbt-04 567205 500 153 102 245 +35.56 ± 14.74 0 37 125 88 0 +71.89 ± 30.51 ↓
429980 ncm-dbt-03 582152 500 152 98 250 +37.67 ± 14.35 0 32 133 84 1 +74.79 ± 29.41 ↓
429979 ncm-dbt-05 582235 500 147 103 250 +30.65 ± 13.61 0 31 144 75 0 +61.79 ± 27.93 ↓
429978 ncm-dbt-02 585169 500 153 98 249 +38.37 ± 14.53 0 34 127 89 0 +77.71 ± 30.23 ↓
429977 ncm-dbt-01 584159 500 153 98 249 +38.37 ± 13.44 0 25 146 78 1 +76.25 ± 27.52 ↓
429976 ncm-dbt-04 569589 500 134 97 269 +25.76 ± 13.67 0 34 145 71 0 +51.8 ± 27.85 ↓
429975 ncm-dbt-03 584117 500 141 100 259 +28.55 ± 14.79 0 40 130 79 1 +56.07 ± 29.87 ↓
429974 ncm-dbt-05 580945 500 162 115 223 +32.76 ± 13.9 0 32 139 79 0 +66.1 ± 28.61 ↓
429973 ncm-dbt-02 589796 500 167 95 238 +50.38 ± 14.14 0 25 129 95 1 +101.46 ± 29.84 ↓
429972 ncm-dbt-01 585548 500 147 106 247 +28.56 ± 15.05 2 37 129 82 0 +60.36 ± 30.0 ↓
429971 ncm-dbt-05 578424 500 162 104 234 +40.48 ± 13.57 0 26 140 84 0 +82.1 ± 28.36 ↓
429970 ncm-dbt-03 585295 500 162 106 232 +39.08 ± 14.31 0 32 130 88 0 +79.17 ± 29.81 ↓
429969 ncm-dbt-04 570188 500 144 115 241 +20.17 ± 15.2 1 42 138 65 4 +36.26 ± 28.86 ↓
429968 ncm-dbt-01 581777 500 150 109 241 +28.55 ± 14.14 0 35 140 74 1 +56.07 ± 28.52 ↓
429967 ncm-dbt-02 585169 500 150 98 252 +36.27 ± 14.26 2 27 138 83 0 +76.25 ± 28.69 ↓
429966 ncm-dbt-05 580821 500 145 88 267 +39.78 ± 14.87 0 35 124 90 1 +79.17 ± 30.64 ↓
429965 ncm-dbt-01 581818 500 155 93 252 +43.3 ± 14.02 0 27 135 87 1 +86.52 ± 29.06 ↓
429964 ncm-dbt-04 570989 500 152 108 240 +30.65 ± 14.81 0 38 132 78 2 +58.93 ± 29.6 ↓
429963 ncm-dbt-03 585464 500 154 100 246 +37.67 ± 14.61 0 34 129 86 1 +74.79 ± 29.96 ↓
429962 ncm-dbt-02 587240 500 148 109 243 +27.16 ± 13.91 1 32 144 73 0 +56.07 ± 27.96 ↓

Commit

Commit ID 08385527dd470ece814ac85013802995a0e7f6ca
Author Joost VandeVondele
Date 2023-02-23 12:25:35 UTC
Introduce a function to compute NNUE accumulator This patch introduces `hint_common_parent_position()` to signal that potentially several child nodes will require an NNUE eval. By populating explicitly the accumulator, these subsequent evaluations can be performed more efficiently. This was based on the observation that calculating the evaluation in an excluded move position yielded a significant Elo gain, even though the evaluation itself was already available (work by pb00067). Sopel wrote the code to perform just the accumulator update. This PR is based on cleaned up code that passed STC: https://tests.stockfishchess.org/tests/view/63f62f9be74a12625bcd4aa0 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 110368 W: 29607 L: 29167 D: 51594 Ptnml(0-2): 41, 10551, 33572, 10967, 53 and in an the earlier (equivalent) version passed STC: https://tests.stockfishchess.org/tests/view/63f3c3fee74a12625bcce2a6 LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 47552 W: 12786 L: 12467 D: 22299 Ptnml(0-2): 120, 5107, 12997, 5438, 114 passed LTC: https://tests.stockfishchess.org/tests/view/63f45cc2e74a12625bccfa63 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 110368 W: 29607 L: 29167 D: 51594 Ptnml(0-2): 41, 10551, 33572, 10967, 53 closes https://github.com/official-stockfish/Stockfish/pull/4402 Bench: 3726250
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