Dev Builds » 20230520-0758

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 09:55:41 1133192 3354 1422 309 1623 +119.83 ± 5.2 0 39 520 1084 34 +265.43 ± 14.93
ncm-dbt-02 09:51:20 1230152 3304 1412 300 1592 +121.68 ± 5.32 0 40 500 1072 40 +268.71 ± 15.23
ncm-dbt-03 09:56:09 1224108 3334 1406 306 1622 +119.08 ± 5.39 0 47 515 1063 42 +260.3 ± 15.01
ncm-dbt-04 09:55:39 1232154 3352 1401 320 1631 +116.19 ± 5.2 1 45 525 1082 23 +258.67 ± 14.87
ncm-dbt-05 09:52:12 1232734 3310 1400 291 1619 +121.08 ± 5.3 1 38 505 1073 38 +268.01 ± 15.15
ncm-dbt-06 09:56:49 1225300 3346 1415 312 1619 +118.97 ± 5.3 0 47 510 1082 34 +262.81 ± 15.09
20000 8456 1838 9706 +119.46 ± 2.16 2 256 3075 6456 211 +263.95 ± 6.14

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
188556 ncm-dbt-02 1226566 304 134 26 144 +129.05 ± 17.27 0 3 42 103 4 +290.8 ± 53.5
188555 ncm-dbt-05 1225685 310 127 21 162 +123.78 ± 16.04 0 2 47 104 2 +282.29 ± 50.21
188554 ncm-dbt-03 1233070 334 142 27 165 +124.72 ± 16.99 0 5 46 112 4 +278.34 ± 51.04
188553 ncm-dbt-06 1218338 346 138 37 171 +104.45 ± 16.69 0 7 60 104 2 +226.13 ± 44.41
188552 ncm-dbt-04 1210644 352 148 38 166 +112.33 ± 15.66 0 3 63 107 3 +245.17 ± 42.96
188551 ncm-dbt-01 1145339 354 147 37 170 +111.65 ± 15.9 0 4 62 108 3 +243.29 ± 43.48
188544 ncm-dbt-02 1225023 500 219 43 238 +127.76 ± 14.6 0 9 65 167 9 +280.42 ± 42.65
188543 ncm-dbt-05 1245024 500 213 45 242 +121.45 ± 13.66 0 4 82 156 8 +263.42 ± 37.69
188542 ncm-dbt-03 1229111 500 203 49 248 +110.6 ± 14.38 0 12 76 158 4 +240.82 ± 39.35
188541 ncm-dbt-04 1252000 500 209 45 246 +118.33 ± 12.26 0 2 84 162 2 +268.17 ± 36.99
188540 ncm-dbt-06 1219103 500 217 35 248 +132.54 ± 13.65 0 3 72 165 10 +293.29 ± 40.39
188539 ncm-dbt-01 1121275 500 214 54 232 +115.22 ± 13.2 0 6 81 160 3 +256.44 ± 38.07
188532 ncm-dbt-02 1242023 500 218 45 237 +125.38 ± 14.3 0 7 72 162 9 +273.0 ± 40.54
188531 ncm-dbt-05 1242564 500 205 37 258 +121.45 ± 13.49 0 7 72 167 4 +273.0 ± 40.54
188530 ncm-dbt-03 1215570 500 216 39 245 +128.55 ± 13.38 0 5 69 170 6 +290.66 ± 41.43
188529 ncm-dbt-04 1248360 500 213 50 237 +117.55 ± 14.04 0 8 77 159 6 +256.44 ± 39.15
188527 ncm-dbt-06 1229242 500 216 47 237 +122.24 ± 12.76 0 4 76 167 3 +277.93 ± 39.29
188526 ncm-dbt-01 1125454 500 221 48 231 +125.38 ± 13.96 0 7 70 166 7 +277.93 ± 41.14
188520 ncm-dbt-02 1235280 500 218 41 241 +128.55 ± 12.82 0 3 72 170 5 +293.29 ± 40.39
188519 ncm-dbt-05 1239260 500 211 55 234 +112.14 ± 14.38 0 10 80 154 6 +240.82 ± 38.39
188518 ncm-dbt-03 1220207 500 218 58 224 +115.22 ± 14.21 0 8 81 154 7 +247.41 ± 38.13
188513 ncm-dbt-01 1139358 500 204 47 249 +112.91 ± 13.56 0 7 83 156 4 +247.41 ± 37.61
188512 ncm-dbt-06 1228190 500 208 51 241 +112.91 ± 13.89 0 9 79 158 4 +247.41 ± 38.64
188511 ncm-dbt-04 1239767 500 195 42 263 +109.83 ± 13.89 0 9 83 154 4 +238.66 ± 37.66
188504 ncm-dbt-02 1225157 500 209 49 242 +115.22 ± 13.88 0 8 79 158 5 +251.89 ± 38.63
188502 ncm-dbt-05 1228113 500 223 44 233 +130.14 ± 13.16 0 3 72 168 7 +293.29 ± 40.39
188501 ncm-dbt-03 1232112 500 205 46 249 +114.45 ± 14.05 0 7 84 152 7 +245.2 ± 37.37
188499 ncm-dbt-01 1140589 500 211 40 249 +123.81 ± 12.92 0 4 75 167 4 +280.42 ± 39.57
188498 ncm-dbt-06 1253402 500 208 46 246 +116.77 ± 14.53 0 10 75 158 7 +251.89 ± 39.67
188497 ncm-dbt-04 1213205 500 206 57 237 +106.78 ± 13.89 1 8 84 155 2 +236.51 ± 37.42
188490 ncm-dbt-02 1226597 500 206 47 247 +114.45 ± 13.21 0 5 85 156 4 +251.89 ± 37.03
188489 ncm-dbt-05 1213966 500 209 52 239 +112.91 ± 13.72 1 5 84 156 4 +249.64 ± 37.33
188488 ncm-dbt-06 1201121 500 211 49 240 +116.77 ± 13.54 0 7 78 161 4 +258.75 ± 38.88
188487 ncm-dbt-01 1137743 500 208 43 249 +119.11 ± 13.52 0 6 78 161 5 +263.42 ± 38.85
188486 ncm-dbt-03 1218327 500 217 40 243 +128.55 ± 13.56 0 3 76 162 9 +282.94 ± 39.21
188485 ncm-dbt-04 1229897 500 224 46 230 +129.35 ± 12.99 0 6 63 178 3 +301.33 ± 43.45
188478 ncm-dbt-04 1231207 500 206 42 252 +118.33 ± 13.7 0 9 71 167 3 +265.78 ± 40.81
188477 ncm-dbt-02 1230420 500 208 49 243 +114.45 ± 13.21 0 5 85 156 4 +251.89 ± 37.03
188476 ncm-dbt-05 1234532 500 212 37 251 +126.97 ± 13.94 0 7 68 168 7 +282.94 ± 41.76
188475 ncm-dbt-01 1122591 500 217 40 243 +128.55 ± 13.73 0 5 71 166 8 +285.49 ± 40.81
188474 ncm-dbt-03 1220365 500 205 47 248 +113.68 ± 13.72 0 7 83 155 5 +247.41 ± 37.61
188473 ncm-dbt-06 1227709 500 217 47 236 +123.02 ± 13.47 0 7 70 169 4 +277.93 ± 41.14

Commit

Commit ID 4f24ee086828e28df7d0b2dce5c13732139e7c19
Author Stefan Geschwentner
Date 2023-05-20 07:58:51 UTC
Small simplification in history pruning. Remove the constant term of the history threshold which lowers the chance that pruning occurs. As compensation allow pruning at a slightly higher depth. Passed STC: https://tests.stockfishchess.org/tests/view/64634c9a87f6567dd4df4901 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 101536 W: 27156 L: 27012 D: 47368 Ptnml(0-2): 266, 11165, 27772, 11289, 276 Passed LTC: https://tests.stockfishchess.org/tests/view/6463d68b17982fde89d2bc2b LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 32154 W: 8741 L: 8543 D: 14870 Ptnml(0-2): 8, 3093, 9687, 3271, 18 Passed LTC: retest on top of VLTC tuning PR 4571 because this changes the history depth factor (use this new factor here) https://tests.stockfishchess.org/tests/view/6467300e165c4b29ec0afd3f LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 99270 W: 26840 L: 26707 D: 45723 Ptnml(0-2): 36, 9753, 29928, 9878, 40 closes https://github.com/official-stockfish/Stockfish/pull/4578 Bench: 2984341
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