Dev Builds » 20210601-1925

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 14. 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 14:29:56 1136770 4922 963 1622 2337 -46.8 ± 4.99 31 949 1132 346 3 -91.12 ± 10.12
ncm-dbt-02 14:23:49 1256543 4894 962 1557 2375 -42.45 ± 4.99 36 880 1179 347 5 -81.54 ± 9.92
ncm-dbt-03 14:29:06 1255845 4936 960 1553 2423 -41.94 ± 4.87 32 876 1214 345 1 -80.53 ± 9.77
ncm-dbt-04 00:30:33 1479361 168 29 49 90 -41.56 ± 28.33 0 36 32 16 0 -84.34 ± 59.75
ncm-dbt-05 14:28:43 1260803 4920 938 1555 2427 -43.8 ± 4.87 38 867 1233 318 4 -83.94 ± 9.68
ncm-dbt-06 00:29:59 1495906 160 30 39 91 -19.56 ± 24.94 0 22 45 13 0 -39.25 ± 50.63
20000 3882 6375 9743 -43.53 ± 2.44 137 3630 4835 1385 13 -83.9 ± 4.9

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
211529 ncm-dbt-02 1241005 228 41 70 117 -44.43 ± 24.64 5 36 56 17 0 -74.25 ± 45.78
211528 ncm-dbt-05 1226564 250 46 74 130 -39.07 ± 20.62 1 42 66 16 0 -76.25 ± 41.9
211527 ncm-dbt-01 1099720 252 47 80 125 -45.76 ± 21.74 2 46 61 17 0 -87.27 ± 43.85
211526 ncm-dbt-03 1210863 270 48 77 145 -37.46 ± 20.88 2 45 68 20 0 -70.44 ± 41.46
211525 ncm-dbt-02 1241115 500 106 165 229 -41.19 ± 15.46 5 84 126 35 0 -76.25 ± 30.37
211524 ncm-dbt-01 1077700 500 103 158 239 -38.37 ± 15.54 1 94 114 41 0 -76.25 ± 31.96
211523 ncm-dbt-05 1239831 500 97 152 251 -38.37 ± 16.38 3 93 112 40 2 -76.25 ± 32.22
211522 ncm-dbt-03 1239107 500 89 154 257 -45.42 ± 16.53 6 94 109 41 0 -83.57 ± 32.63
211521 ncm-dbt-02 1236967 500 99 149 252 -34.86 ± 15.7 3 85 122 39 1 -67.55 ± 30.91
211520 ncm-dbt-05 1247790 500 86 162 252 -53.22 ± 14.82 5 91 129 25 0 -101.46 ± 29.84
211519 ncm-dbt-01 1115417 500 90 152 258 -43.3 ± 15.82 3 94 116 36 1 -85.04 ± 31.71
211518 ncm-dbt-03 1229381 500 99 180 221 -56.78 ± 16.01 4 107 105 34 0 -110.6 ± 33.27
211517 ncm-dbt-02 1237063 500 92 168 240 -53.22 ± 15.47 4 99 116 31 0 -102.97 ± 31.72
211516 ncm-dbt-05 1227527 500 102 161 237 -41.19 ± 15.21 3 88 124 35 0 -79.17 ± 30.64
211515 ncm-dbt-01 1109597 500 88 168 244 -56.07 ± 14.7 1 105 117 27 0 -113.68 ± 31.56
211514 ncm-dbt-03 1242833 500 102 148 250 -32.06 ± 15.03 0 86 125 38 1 -66.1 ± 30.52
211513 ncm-dbt-02 1241653 500 80 154 266 -51.8 ± 14.88 1 102 117 30 0 -104.49 ± 31.58
211512 ncm-dbt-01 1088424 500 101 185 214 -58.93 ± 15.73 4 107 108 31 0 -115.23 ± 32.87
211511 ncm-dbt-05 1246596 500 100 167 233 -46.84 ± 15.64 0 105 108 36 1 -96.94 ± 32.81
211510 ncm-dbt-03 1245595 500 102 149 249 -32.76 ± 14.03 0 80 137 33 0 -66.1 ± 28.89
211338 ncm-dbt-05 1250764 500 88 149 263 -42.6 ± 14.38 3 83 136 28 0 -82.1 ± 28.94
211337 ncm-dbt-01 1092579 500 106 157 237 -35.56 ± 15.5 1 90 119 39 1 -71.89 ± 31.31
211336 ncm-dbt-02 1218046 500 108 166 226 -40.48 ± 15.54 3 89 122 35 1 -79.17 ± 30.91
211335 ncm-dbt-03 1243564 500 103 161 236 -40.48 ± 14.78 3 84 131 32 0 -77.71 ± 29.68
211334 ncm-dbt-05 1235311 500 93 170 237 -53.93 ± 15.12 6 91 127 26 0 -101.46 ± 30.14
211333 ncm-dbt-02 1227252 500 106 154 240 -33.46 ± 15.85 2 87 120 39 2 -67.55 ± 31.17
211332 ncm-dbt-01 1125756 500 115 167 218 -36.26 ± 16.14 2 94 108 46 0 -70.44 ± 32.71
211331 ncm-dbt-03 1233592 500 101 156 243 -38.37 ± 14.92 3 83 130 34 0 -73.34 ± 29.83
211330 ncm-dbt-05 1241894 500 93 163 244 -48.96 ± 14.87 5 87 131 27 0 -92.46 ± 29.6
211329 ncm-dbt-02 1239205 500 91 168 241 -53.93 ± 16.0 6 97 116 30 1 -102.97 ± 31.72
211328 ncm-dbt-03 1231334 500 88 168 244 -56.07 ± 15.85 7 96 117 30 0 -104.49 ± 31.58
211327 ncm-dbt-01 1117373 500 93 159 248 -46.13 ± 16.56 3 103 102 41 1 -90.97 ± 33.57
211326 ncm-dbt-05 1223348 500 106 147 247 -28.55 ± 15.54 5 72 133 39 1 -51.8 ± 29.48
211325 ncm-dbt-01 1088644 500 99 162 239 -44.01 ± 15.74 4 92 117 37 0 -83.57 ± 31.58
211324 ncm-dbt-02 1214526 500 109 148 243 -27.15 ± 15.93 3 81 118 48 0 -50.38 ± 31.41
211323 ncm-dbt-03 1222744 500 91 164 245 -51.09 ± 16.22 7 94 114 35 0 -93.95 ± 31.99
211322 ncm-dbt-01 1107149 500 99 171 230 -50.38 ± 14.94 6 86 132 26 0 -93.95 ± 29.45
211321 ncm-dbt-05 1240926 500 95 160 245 -45.42 ± 16.17 7 88 118 37 0 -82.1 ± 31.44
211320 ncm-dbt-02 1238101 500 95 159 246 -44.72 ± 14.51 1 92 127 30 0 -89.48 ± 30.19
211319 ncm-dbt-03 1218894 500 101 146 253 -31.35 ± 14.2 0 80 135 35 0 -63.23 ± 29.18
178234 ncm-dbt-06 1495906 160 30 39 91 -19.56 ± 24.94 0 22 45 13 0 -39.25 ± 50.63
178233 ncm-dbt-03 1496390 166 36 50 80 -29.37 ± 25.4 0 27 43 13 0 -59.17 ± 52.23
178232 ncm-dbt-02 1487047 166 35 56 75 -44.18 ± 28.86 3 28 39 13 0 -76.56 ± 55.04
178231 ncm-dbt-01 1482119 170 22 63 85 -85.47 ± 26.7 4 38 38 5 0 -162.05 ± 55.68
178230 ncm-dbt-05 1488282 170 32 50 88 -36.92 ± 23.02 0 27 49 9 0 -74.7 ± 47.93
178229 ncm-dbt-04 1479361 168 29 49 90 -41.56 ± 28.33 0 36 32 16 0 -84.34 ± 59.75

Commit

Commit ID 9fd5b44d60c53357bb76d4c51f20d3d5aa31ebe3
Author J. Oster
Date 2021-06-01 19:25:28 UTC
Pre-initialize ss->ply We pre-initialize ss->ply over the whole stack. There is no need to re-assign the same value(s) over and over again while searching. Probably a tiny speedup on longer searches. Tested for no regression: STC LLR: 2.93 (-2.94,2.94) <-2.50,0.50> Total: 25784 W: 2205 L: 2101 D: 21478 Ptnml(0-2): 62, 1660, 9368, 1716, 86 https://tests.stockfishchess.org/tests/view/60b516c6457376eb8bca9dfa LTC LLR: 2.94 (-2.94,2.94) <-2.50,0.50> Total: 26200 W: 944 L: 878 D: 24378 Ptnml(0-2): 12, 732, 11545, 800, 11 https://tests.stockfishchess.org/tests/view/60b53652457376eb8bca9e0e closes https://github.com/official-stockfish/Stockfish/pull/3516 No functional change.
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