Dev Builds » 20230806-2025

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 10:00:14 1187433 3372 1416 304 1652 +119.02 ± 5.32 0 49 513 1087 37 +262.01 ± 15.05
ncm-dbt-02 09:49:12 1224515 3270 1420 290 1560 +125.22 ± 5.46 0 44 465 1078 48 +276.55 ± 15.81
ncm-dbt-03 09:56:06 1236630 3338 1430 272 1636 +125.75 ± 5.31 0 35 491 1093 50 +277.85 ± 15.37
ncm-dbt-04 09:58:14 1235109 3346 1429 279 1638 +124.48 ± 5.3 0 41 484 1105 43 +276.49 ± 15.49
ncm-dbt-05 09:52:12 1231997 3318 1411 286 1621 +122.65 ± 5.46 0 41 507 1056 55 +266.36 ± 15.13
ncm-dbt-06 09:57:59 1226439 3356 1411 282 1663 +121.62 ± 5.22 0 44 493 1109 32 +271.63 ± 15.35
20000 8517 1713 9770 +123.1 ± 2.18 0 254 2953 6528 265 +271.72 ± 6.26

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
198939 ncm-dbt-02 1205442 270 118 25 127 +124.77 ± 18.33 0 2 42 87 4 +275.0 ± 53.21
198938 ncm-dbt-05 1223755 318 135 26 157 +124.11 ± 17.9 0 5 45 104 5 +271.84 ± 51.61
198937 ncm-dbt-03 1245817 338 150 32 156 +126.61 ± 18.03 0 4 52 104 9 +266.36 ± 47.82
198936 ncm-dbt-04 1220308 346 139 32 175 +111.08 ± 16.99 0 7 55 108 3 +241.45 ± 46.48
198935 ncm-dbt-06 1234739 356 144 25 187 +120.78 ± 14.53 0 1 59 116 2 +273.8 ± 44.25
198934 ncm-dbt-01 1202882 372 148 32 192 +112.07 ± 15.68 0 6 60 118 2 +247.92 ± 44.44
198933 ncm-dbt-02 1223831 500 221 37 242 +134.15 ± 13.97 0 6 63 172 9 +301.33 ± 43.45
198932 ncm-dbt-05 1242417 500 213 52 235 +116.0 ± 14.37 0 8 81 153 8 +247.41 ± 38.13
198931 ncm-dbt-03 1230636 500 214 44 242 +123.02 ± 13.65 0 6 74 164 6 +273.0 ± 39.95
198930 ncm-dbt-04 1215448 500 210 34 256 +127.76 ± 12.45 0 2 74 170 4 +293.29 ± 39.69
198929 ncm-dbt-06 1230489 500 206 44 250 +116.77 ± 14.53 0 9 78 155 8 +249.64 ± 38.9
198928 ncm-dbt-01 1193158 500 209 50 241 +114.45 ± 13.55 0 6 84 155 5 +249.64 ± 37.33
198927 ncm-dbt-02 1234862 500 216 46 238 +123.02 ± 14.65 0 8 74 158 10 +263.42 ± 39.97
198926 ncm-dbt-05 1243694 500 220 44 236 +127.76 ± 13.75 0 2 81 156 11 +275.45 ± 37.75
198925 ncm-dbt-03 1243783 500 219 40 241 +130.14 ± 13.88 0 3 76 160 11 +282.94 ± 39.21
198924 ncm-dbt-04 1230263 500 219 39 242 +130.94 ± 13.87 0 5 69 167 9 +290.66 ± 41.43
198923 ncm-dbt-06 1234275 500 209 44 247 +119.11 ± 13.17 0 6 76 165 3 +268.17 ± 39.39
198922 ncm-dbt-01 1150987 500 213 46 241 +120.67 ± 13.15 0 5 77 164 4 +270.57 ± 39.07
198921 ncm-dbt-02 1231796 500 219 44 237 +126.97 ± 13.04 0 5 69 172 4 +290.66 ± 41.43
198920 ncm-dbt-05 1231792 500 205 44 251 +116.0 ± 14.21 0 7 83 152 8 +247.41 ± 37.61
198919 ncm-dbt-03 1237237 500 207 34 259 +125.38 ± 13.79 0 6 72 165 7 +277.93 ± 40.53
198918 ncm-dbt-04 1252907 500 212 43 245 +122.24 ± 14.5 0 9 71 162 8 +265.78 ± 40.81
198917 ncm-dbt-06 1230299 500 209 38 253 +123.81 ± 13.63 0 9 64 174 3 +282.94 ± 42.98
198916 ncm-dbt-01 1173049 500 224 44 232 +130.94 ± 14.39 0 5 72 161 12 +282.94 ± 40.5
198915 ncm-dbt-02 1239701 500 210 49 241 +116.0 ± 14.69 0 11 74 158 7 +249.64 ± 39.91
198914 ncm-dbt-05 1240388 500 211 34 255 +128.55 ± 14.08 0 7 67 168 8 +285.49 ± 42.08
198913 ncm-dbt-03 1236467 500 206 39 255 +120.67 ± 13.67 0 8 71 167 4 +270.57 ± 40.83
198912 ncm-dbt-04 1262368 500 224 46 230 +129.35 ± 13.9 0 8 62 174 6 +293.29 ± 43.72
198911 ncm-dbt-06 1206210 500 215 32 253 +133.34 ± 13.26 0 4 66 173 7 +304.07 ± 42.38
198910 ncm-dbt-01 1170091 500 210 46 244 +118.33 ± 14.52 0 10 73 160 7 +256.44 ± 40.21
198909 ncm-dbt-02 1188217 500 222 38 240 +134.15 ± 13.61 0 4 67 170 9 +301.33 ± 42.04
198908 ncm-dbt-05 1213542 500 209 39 252 +123.02 ± 14.33 0 8 72 162 8 +268.17 ± 40.54
198907 ncm-dbt-03 1232962 500 209 48 243 +116.0 ± 13.71 0 5 86 152 7 +249.64 ± 36.79
198906 ncm-dbt-04 1232046 500 217 41 242 +127.76 ± 13.57 0 5 71 167 7 +285.49 ± 40.81
198905 ncm-dbt-06 1216173 500 216 42 242 +126.17 ± 13.77 0 7 68 169 6 +282.94 ± 41.76
198904 ncm-dbt-01 1199452 500 207 54 239 +109.83 ± 14.06 0 10 81 155 4 +238.66 ± 38.15
198903 ncm-dbt-02 1247759 500 214 51 235 +117.55 ± 13.87 0 8 76 161 5 +258.75 ± 39.42
198902 ncm-dbt-05 1228393 500 218 47 235 +123.81 ± 13.46 0 4 78 161 7 +273.0 ± 38.74
198901 ncm-dbt-03 1229514 500 225 35 240 +138.99 ± 12.7 0 3 60 181 6 +327.18 ± 44.54
198900 ncm-dbt-06 1232889 500 212 57 231 +111.37 ± 13.56 0 8 82 157 3 +245.2 ± 37.88
198899 ncm-dbt-04 1232424 500 208 44 248 +118.33 ± 13.52 0 5 82 157 6 +258.75 ± 37.76
198898 ncm-dbt-01 1222414 500 205 32 263 +125.38 ± 13.25 0 7 66 174 3 +288.06 ± 42.4

Commit

Commit ID a26f8d37e108c103ada129e619a17597c7e50046
Author FauziAkram
Date 2023-08-06 20:25:58 UTC
Tweak formula for pruning moves losing material Simplify the "Prune moves with negative SEE" formula, by removing one multiplication and subtraction operation. Passed STC: LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 214272 W: 54596 L: 54572 D: 105104 Ptnml(0-2): 741, 25160, 55320, 25164, 751 https://tests.stockfishchess.org/tests/view/64c430d1dc56e1650abbdbf6 Passed LTC: LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 238380 W: 60600 L: 60601 D: 117179 Ptnml(0-2): 132, 26069, 66791, 26064, 134 https://tests.stockfishchess.org/tests/view/64c81f155b17f7c21c0cee2b closes https://github.com/official-stockfish/Stockfish/pull/4721 bench: 1655337
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