Dev Builds » 20230325-0822

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 06:59:59 582160 4012 1270 835 1907 +37.82 ± 5.11 8 243 1067 682 6 +76.92 ± 10.36
ncm-dbt-02 06:57:45 586273 4000 1210 818 1972 +34.16 ± 5.1 6 260 1075 654 5 +69.17 ± 10.32
ncm-dbt-03 07:00:11 585407 4000 1253 764 1983 +42.69 ± 5.02 5 212 1082 691 10 +85.78 ± 10.24
ncm-dbt-04 06:59:46 570562 4008 1293 797 1918 +43.22 ± 5.03 4 222 1056 718 4 +87.82 ± 10.4
ncm-dbt-05 07:00:09 585350 3980 1220 804 1956 +36.45 ± 5.11 4 256 1054 672 4 +73.72 ± 10.43
20000 6246 4018 9736 +38.87 ± 2.27 27 1193 5334 3417 29 +78.66 ± 4.63

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
410324 ncm-dbt-04 572074 8 3 1 4 +88.62 ± 93.84 0 0 2 2 0 +190.67 ± 458.56 ↓
410323 ncm-dbt-01 583992 12 5 4 3 +28.98 ± 52.84 0 0 5 1 0 +58.38 ± 110.52 ↓
410322 ncm-dbt-05 586604 480 138 95 247 +31.21 ± 14.68 0 35 127 78 0 +62.93 ± 30.16 ↓
410321 ncm-dbt-03 585885 500 152 91 257 +42.6 ± 13.7 0 26 137 87 0 +86.52 ± 28.77 ↓
410320 ncm-dbt-01 582736 500 153 107 240 +32.06 ± 14.9 2 34 130 84 0 +67.55 ± 29.85 ↓
410319 ncm-dbt-02 585295 500 146 110 244 +25.06 ± 14.16 2 32 144 72 0 +53.22 ± 27.98 ↓
410318 ncm-dbt-04 571070 500 155 104 241 +35.56 ± 14.87 2 32 129 87 0 +74.79 ± 29.96 ↓
410317 ncm-dbt-05 586097 500 156 111 233 +31.36 ± 14.98 1 38 126 85 0 +64.66 ± 30.39 ↓
410316 ncm-dbt-03 585379 500 168 95 237 +51.09 ± 13.9 0 23 132 94 1 +102.97 ± 29.38 ↓
410315 ncm-dbt-02 585421 500 144 96 260 +33.46 ± 14.35 1 31 138 79 1 +67.55 ± 28.74 ↓
410314 ncm-dbt-04 569629 500 157 90 253 +46.84 ± 13.67 0 23 138 88 1 +93.95 ± 28.55 ↓
410313 ncm-dbt-01 584327 500 166 103 231 +44.01 ± 14.73 0 32 124 93 1 +88.0 ± 30.62 ↓
410312 ncm-dbt-05 581860 500 162 115 223 +32.76 ± 14.43 2 30 137 81 0 +68.99 ± 28.88 ↓
410311 ncm-dbt-03 584201 500 160 100 240 +41.89 ± 13.66 0 25 141 83 1 +83.57 ± 28.2 ↓
410310 ncm-dbt-04 570989 500 165 90 245 +52.51 ± 13.26 0 19 137 94 0 +107.54 ± 28.56 ↓
410309 ncm-dbt-02 588217 500 158 113 229 +31.35 ± 14.34 0 36 133 81 0 +63.23 ± 29.45 ↓
410308 ncm-dbt-01 580199 500 162 113 225 +34.16 ± 14.26 0 34 133 83 0 +68.99 ± 29.43 ↓
410307 ncm-dbt-05 585674 500 158 104 238 +37.67 ± 13.53 0 27 142 81 0 +76.25 ± 28.11 ↓
410306 ncm-dbt-03 586816 500 154 86 260 +47.54 ± 13.85 0 23 138 87 2 +93.95 ± 28.55 ↓
410305 ncm-dbt-01 579537 500 153 107 240 +32.05 ± 15.28 1 38 127 82 2 +63.23 ± 30.26 ↓
410304 ncm-dbt-04 569669 500 166 104 230 +43.3 ± 13.74 0 26 136 88 0 +88.0 ± 28.9 ↓
410303 ncm-dbt-02 585970 500 155 103 242 +36.26 ± 14.79 1 32 133 82 2 +71.89 ± 29.42 ↓
410302 ncm-dbt-05 583154 500 151 94 255 +39.78 ± 15.13 1 34 123 91 1 +80.63 ± 30.77 ↓
410301 ncm-dbt-03 585885 500 150 84 266 +46.13 ± 14.05 0 25 136 87 2 +90.97 ± 28.88 ↓
410300 ncm-dbt-04 570428 500 166 113 221 +36.97 ± 14.31 0 31 137 80 2 +71.89 ± 28.86 ↓
410299 ncm-dbt-01 581153 500 167 101 232 +46.13 ± 13.63 1 19 145 83 2 +92.46 ± 27.49 ↓
410298 ncm-dbt-02 586477 500 170 100 230 +48.96 ± 14.61 0 29 123 97 1 +98.44 ± 30.73 ↓
410297 ncm-dbt-05 583572 500 158 85 257 +51.09 ± 14.04 0 24 130 95 1 +102.97 ± 29.68 ↓
410296 ncm-dbt-03 586139 500 145 91 264 +37.67 ± 15.0 2 31 129 87 1 +77.71 ± 29.96 ↓
410295 ncm-dbt-04 570749 500 157 101 242 +39.08 ± 14.17 1 28 135 86 0 +80.63 ± 29.1 ↓
410294 ncm-dbt-01 582736 500 149 96 255 +36.97 ± 14.17 0 32 133 85 0 +74.79 ± 29.41 ↓
410293 ncm-dbt-02 585928 500 148 104 248 +30.65 ± 15.31 0 43 121 85 1 +60.36 ± 31.04 ↓
410292 ncm-dbt-05 586435 500 157 102 241 +38.37 ± 14.92 0 35 127 86 2 +74.79 ± 30.24 ↓
410291 ncm-dbt-04 569909 500 147 89 264 +40.48 ± 15.04 0 36 121 92 1 +80.63 ± 31.04 ↓
410290 ncm-dbt-02 587834 500 146 97 257 +34.16 ± 14.13 1 30 138 81 0 +70.44 ± 28.73 ↓
410289 ncm-dbt-01 582569 500 156 107 237 +34.16 ± 14.52 2 29 138 80 1 +70.44 ± 28.73 ↓
410288 ncm-dbt-03 583447 500 156 97 247 +41.19 ± 13.62 0 25 142 82 1 +82.1 ± 28.06 ↓
410287 ncm-dbt-02 585042 500 143 95 262 +33.46 ± 13.67 1 27 145 77 0 +68.99 ± 27.73 ↓
410286 ncm-dbt-05 589411 500 140 98 262 +29.25 ± 13.79 0 33 142 75 0 +58.93 ± 28.23 ↓
410285 ncm-dbt-04 570549 500 177 105 218 +50.38 ± 14.68 1 27 121 101 0 +104.49 ± 31.0 ↓
410284 ncm-dbt-03 585506 500 168 120 212 +33.46 ± 15.61 3 34 127 84 2 +68.99 ± 30.25 ↓
410283 ncm-dbt-01 582193 500 159 97 244 +43.31 ± 14.42 2 25 132 91 0 +90.97 ± 29.47 ↓

Commit

Commit ID 1b5738e0c958ac8d3d140a3d182b85f8c0c0cd2c
Author Michael Chaly
Date 2023-03-25 08:22:25 UTC
Simplify statScore initialization This patch simplifies initialization of statScore to "always set it up to 0" instead of setting it up to 0 two plies deeper. Reason for why it was done in previous way partially was because of LMR usage of previous statScore which was simplified long time ago so it makes sense to make in more simple there. Passed STC: https://tests.stockfishchess.org/tests/view/641a86d1db43ab2ba6f7b31d LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 115648 W: 30895 L: 30764 D: 53989 Ptnml(0-2): 368, 12741, 31473, 12876, 366 Passed LTC: https://tests.stockfishchess.org/tests/view/641b1c31db43ab2ba6f7d17a LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 175576 W: 47122 L: 47062 D: 81392 Ptnml(0-2): 91, 17077, 53390, 17141, 89 closes https://github.com/official-stockfish/Stockfish/pull/4460 bench 5081969
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