Dev Builds » 20230507-2036

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 09:56:31 1185180 3342 1424 297 1621 +121.93 ± 5.32 1 48 478 1111 33 +272.57 ± 15.6
ncm-dbt-02 09:48:09 1234721 3292 1393 291 1608 +120.97 ± 5.27 0 39 501 1071 35 +268.31 ± 15.21
ncm-dbt-03 09:54:00 1227296 3344 1424 304 1616 +121.04 ± 5.28 0 49 485 1107 31 +270.16 ± 15.48
ncm-dbt-04 09:59:00 1225122 3358 1422 329 1607 +117.36 ± 5.29 0 40 547 1051 41 +255.62 ± 14.54
ncm-dbt-05 09:49:51 1230376 3306 1382 298 1626 +118.29 ± 5.28 0 45 509 1069 30 +262.02 ± 15.1
ncm-dbt-06 09:57:54 1224882 3358 1396 312 1650 +116.31 ± 5.48 0 59 519 1059 42 +252.24 ± 14.97
20000 8441 1831 9728 +119.31 ± 2.17 1 280 3039 6468 212 +263.36 ± 6.18

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
186907 ncm-dbt-02 1233328 292 119 20 153 +122.64 ± 17.87 0 5 39 100 2 +278.16 ± 55.55
186906 ncm-dbt-05 1224986 306 126 28 152 +115.32 ± 17.42 0 6 44 102 1 +259.9 ± 52.14
186899 ncm-dbt-01 1201518 342 136 28 178 +113.6 ± 16.24 0 4 58 106 3 +248.55 ± 45.06
186898 ncm-dbt-03 1210629 344 151 20 173 +139.32 ± 14.88 0 2 40 127 3 +333.47 ± 54.98
186897 ncm-dbt-04 1250401 358 147 41 170 +106.04 ± 15.79 0 6 62 110 1 +233.63 ± 43.64
186896 ncm-dbt-06 1210701 358 153 35 170 +118.96 ± 16.85 0 4 60 108 7 +251.96 ± 44.29
186889 ncm-dbt-02 1235364 500 215 50 235 +119.11 ± 13.52 0 4 84 155 7 +258.75 ± 37.2
186888 ncm-dbt-05 1242049 500 196 36 268 +115.22 ± 13.72 0 10 72 166 2 +258.75 ± 40.49
186887 ncm-dbt-03 1236030 500 209 45 246 +118.33 ± 14.52 0 12 67 166 5 +261.07 ± 41.83
186886 ncm-dbt-01 1206818 500 202 43 255 +114.45 ± 14.05 0 13 66 170 1 +258.75 ± 42.05
186885 ncm-dbt-04 1223079 500 217 46 237 +123.81 ± 13.81 0 5 77 160 8 +270.57 ± 39.07
186884 ncm-dbt-06 1211871 500 210 41 249 +122.24 ± 15.29 0 11 70 158 11 +258.75 ± 41.02
186877 ncm-dbt-02 1248669 500 219 45 236 +126.17 ± 12.87 0 5 69 173 3 +290.66 ± 41.43
186876 ncm-dbt-05 1229762 500 211 50 239 +116.0 ± 14.69 0 10 77 155 8 +247.41 ± 39.15
186875 ncm-dbt-03 1207524 500 214 48 238 +119.89 ± 14.51 0 10 71 162 7 +261.07 ± 40.78
186874 ncm-dbt-01 1145693 500 217 47 236 +123.02 ± 13.47 0 7 70 169 4 +277.93 ± 41.14
186873 ncm-dbt-06 1210878 500 201 53 246 +106.01 ± 14.04 0 11 83 153 3 +230.16 ± 37.67
186872 ncm-dbt-04 1205080 500 207 39 254 +121.45 ± 13.49 0 7 72 167 4 +273.0 ± 40.54
186865 ncm-dbt-02 1228670 500 203 51 246 +109.07 ± 14.84 0 12 81 150 7 +230.16 ± 38.13
186864 ncm-dbt-05 1229417 500 214 55 231 +114.45 ± 13.55 0 5 87 152 6 +247.41 ± 36.56
186863 ncm-dbt-03 1230463 500 206 50 244 +112.14 ± 13.56 0 6 87 152 5 +243.0 ± 36.62
186862 ncm-dbt-01 1188947 500 213 45 242 +121.46 ± 14.67 1 8 70 164 7 +268.17 ± 41.1
186861 ncm-dbt-06 1249808 500 204 44 252 +115.22 ± 13.72 0 7 81 157 5 +251.89 ± 38.11
186860 ncm-dbt-04 1225469 500 217 49 234 +121.45 ± 14.83 0 7 80 151 12 +254.16 ± 38.36
186853 ncm-dbt-02 1223243 500 212 40 248 +124.6 ± 14.47 0 7 74 159 10 +268.17 ± 39.97
186852 ncm-dbt-05 1232491 500 211 44 245 +120.67 ± 12.97 0 5 76 166 3 +273.0 ± 39.35
186851 ncm-dbt-03 1223311 500 212 44 244 +121.45 ± 13.31 0 6 74 166 4 +273.0 ± 39.95
186850 ncm-dbt-01 1192792 500 222 36 242 +135.76 ± 12.21 0 2 64 180 4 +321.19 ± 42.95
186849 ncm-dbt-04 1221112 500 216 60 224 +112.14 ± 12.69 0 5 85 159 1 +251.89 ± 37.03
186848 ncm-dbt-06 1241862 500 208 33 259 +126.97 ± 12.85 0 2 77 165 6 +285.49 ± 38.83
186841 ncm-dbt-05 1238982 500 209 39 252 +123.02 ± 12.93 0 3 79 163 5 +275.45 ± 38.39
186840 ncm-dbt-02 1227982 500 208 40 252 +121.45 ± 12.4 0 3 78 167 2 +277.93 ± 38.66
186839 ncm-dbt-03 1220823 500 210 47 243 +117.55 ± 13.53 0 8 74 165 3 +263.42 ± 39.97
186838 ncm-dbt-01 1145237 500 213 50 237 +117.55 ± 14.04 0 6 83 153 8 +251.89 ± 37.57
186837 ncm-dbt-06 1225159 500 206 55 239 +108.3 ± 14.68 0 14 75 157 4 +234.38 ± 39.52
186836 ncm-dbt-04 1216210 500 203 45 252 +113.68 ± 14.22 0 8 83 152 7 +243.0 ± 37.64
186829 ncm-dbt-02 1245796 500 217 45 238 +124.6 ± 12.71 0 3 76 167 4 +282.94 ± 39.21
186828 ncm-dbt-05 1214950 500 215 46 239 +122.24 ± 13.48 0 6 74 165 5 +273.0 ± 39.95
186827 ncm-dbt-03 1262294 500 222 50 228 +124.6 ± 13.09 0 5 72 169 4 +282.94 ± 40.5
186826 ncm-dbt-01 1215260 500 221 48 231 +125.38 ± 13.96 0 8 67 169 6 +280.42 ± 42.05
186825 ncm-dbt-06 1223898 500 214 51 235 +117.55 ± 14.37 0 10 73 161 6 +256.44 ± 40.21
186824 ncm-dbt-04 1234506 500 215 49 236 +119.89 ± 13.33 0 2 88 152 8 +258.75 ± 36.04

Commit

Commit ID 65e2150501b87e6ce00fae4e3f056444f39462fd
Author Michael Chaly
Date 2023-05-07 20:36:57 UTC
Refine deeper post-lmr searches This patch improves logic conditions for performing deeper searches after passed LMR. Instead of exceeding alpha by some margin now it requires to exceed the current best value - which may be lower than alpha (but never bigger since we update alpha with bestvalue if it exceeds alpha). Passed STC: https://tests.stockfishchess.org/tests/view/6455f78008858de8313775b6 LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 209344 W: 55993 L: 55448 D: 97903 Ptnml(0-2): 507, 22798, 57526, 23325, 516 Passed LTC: https://tests.stockfishchess.org/tests/view/64572d46eb75932ccfebff97 LLR: 2.94 (-2.94,2.94) <0.50,2.50> Total: 66288 W: 17867 L: 17514 D: 30907 Ptnml(0-2): 21, 6240, 20269, 6593, 21 closes https://github.com/official-stockfish/Stockfish/pull/4559 bench 3808503
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