Dev Builds » 20230209-0645

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 04:59:55 1118915 1680 709 162 809 +117.4 +/- 7.52 0 30 245 553 12 +261.6 +/- 21.81
ncm-dbt-02 04:57:57 1238080 1650 678 149 823 +115.46 +/- 7.64 0 24 267 515 19 +250.87 +/- 20.87
ncm-dbt-03 04:59:53 1244148 1678 707 172 799 +114.77 +/- 7.39 0 21 278 524 16 +251.1 +/- 20.42
ncm-dbt-04 05:00:41 1234768 1676 690 170 816 +111.47 +/- 7.43 0 26 278 522 12 +244.21 +/- 20.45
ncm-dbt-05 04:56:26 1230673 1644 673 149 822 +114.74 +/- 7.8 0 30 256 518 18 +249.4 +/- 21.34
ncm-dbt-06 05:00:12 1237387 1672 703 151 818 +119.17 +/- 7.16 0 19 256 551 10 +268.36 +/- 21.31
ncm-et-3 06:24:22 1304724 1662 661 175 826 +104.65 +/- 7.63 0 31 296 491 13 +224.56 +/- 19.8
ncm-et-4 06:24:26 1309662 1676 696 187 793 +108.95 +/- 7.57 0 25 297 498 18 +233.28 +/- 19.74
ncm-et-9 06:24:14 1297127 1676 709 195 772 +110.09 +/- 7.86 0 34 276 508 20 +235.18 +/- 20.54
ncm-et-10 06:25:10 1297179 1664 679 175 810 +108.64 +/- 7.92 2 32 275 506 17 +234.24 +/- 20.58
ncm-et-13 06:24:18 1307039 1660 700 174 786 +114.01 +/- 7.93 1 36 245 532 16 +249.46 +/- 21.79
ncm-et-15 06:24:37 1304120 1662 680 144 838 +116.2 +/- 7.77 1 24 266 518 22 +251.74 +/- 20.91
20000 8285 2003 9712 +112.95 +/- 2.21 4 332 3235 6236 193 +245.92 +/- 5.98

Test Detail

ID Host Base NPS Games WLD Standard Elo Ptnml(0-2) Gamepair Elo CLI PGN
201449 ncm-dbt-05 1231563 144 60 15 69 +112.32 +/- 25.12 0 2 24 45 1 +246.92 +/- 71.44
201448 ncm-dbt-02 1243684 150 67 18 65 +117.81 +/- 23.33 0 1 25 48 1 +263.42 +/- 69.54
201447 ncm-dbt-06 1241007 172 76 15 81 +128.81 +/- 20.15 0 1 23 62 0 +307.75 +/- 73.44
201446 ncm-dbt-04 1246504 176 72 21 83 +103.64 +/- 22.17 0 2 34 51 1 +224.04 +/- 58.9
201445 ncm-dbt-03 1241726 178 75 21 82 +108.82 +/- 24.34 0 4 29 54 2 +232.41 +/- 64.71
201444 ncm-dbt-01 1123197 180 78 10 92 +138.09 +/- 21.03 0 1 22 65 2 +325.17 +/- 75.45
201443 ncm-dbt-02 1244759 500 206 47 247 +114.45 +/- 13.89 0 6 86 151 7 +245.2 +/- 36.85
201442 ncm-dbt-05 1229407 500 202 40 258 +116.77 +/- 14.85 0 12 71 160 7 +251.89 +/- 40.68
201441 ncm-dbt-06 1234333 500 217 38 245 +130.14 +/- 13.16 0 6 63 177 4 +301.33 +/- 43.45
201440 ncm-dbt-03 1236968 500 202 55 243 +105.25 +/- 13.22 0 6 94 147 3 +228.08 +/- 35.08
201439 ncm-dbt-04 1244949 500 217 45 238 +124.6 +/- 12.33 0 4 71 174 1 +290.66 +/- 40.76
201438 ncm-dbt-01 1120861 500 209 53 238 +112.14 +/- 13.89 0 11 74 163 2 +249.64 +/- 39.91
201437 ncm-dbt-02 1227305 500 204 42 254 +116.77 +/- 14.37 0 9 77 157 7 +251.89 +/- 39.16
201436 ncm-dbt-05 1223595 500 213 48 239 +119.11 +/- 13.69 0 6 79 159 6 +261.07 +/- 38.58
201435 ncm-dbt-06 1230294 500 207 49 244 +113.68 +/- 12.86 0 6 81 162 1 +256.44 +/- 38.07
201434 ncm-dbt-04 1217390 500 202 47 251 +111.37 +/- 14.06 0 9 82 154 5 +240.82 +/- 37.9
201433 ncm-dbt-03 1234419 500 207 45 248 +116.77 +/- 13.36 0 7 77 163 3 +261.07 +/- 39.14
201432 ncm-dbt-01 1120122 500 209 47 244 +116.77 +/- 14.04 0 11 69 167 3 +261.07 +/- 41.31
201431 ncm-dbt-05 1238129 500 198 46 256 +109.07 +/- 14.05 0 10 82 154 4 +236.51 +/- 37.9
201430 ncm-dbt-02 1236572 500 201 42 257 +114.45 +/- 13.72 0 8 79 159 4 +251.89 +/- 38.63
201429 ncm-dbt-03 1263482 500 223 51 226 +124.6 +/- 13.62 0 4 78 160 8 +273.0 +/- 38.74
201428 ncm-dbt-01 1111481 500 213 52 235 +116.0 +/- 13.71 0 7 80 158 5 +254.16 +/- 38.36
201427 ncm-dbt-06 1243917 500 203 49 248 +110.6 +/- 13.56 0 6 89 150 5 +238.66 +/- 36.16
201426 ncm-dbt-04 1230229 500 199 57 244 +101.46 +/- 14.32 0 11 91 143 5 +213.85 +/- 35.9
165748 ncm-et-3 1296143 162 69 21 72 +106.12 +/- 27.55 0 5 26 47 3 +217.63 +/- 68.26
165747 ncm-et-13 1309739 160 67 20 73 +105.15 +/- 25.31 0 3 29 46 2 +221.14 +/- 64.53
165746 ncm-et-10 1295060 164 66 14 84 +114.09 +/- 25.78 0 3 27 49 3 +239.5 +/- 67.21
165745 ncm-et-15 1314695 162 63 12 87 +113.22 +/- 24.25 0 2 28 49 2 +243.52 +/- 65.69
165744 ncm-et-4 1311544 176 73 17 86 +114.52 +/- 22.97 0 1 33 51 3 +242.06 +/- 59.53
165743 ncm-et-9 1303557 176 75 17 84 +118.93 +/- 22.08 0 1 30 55 2 +261.29 +/- 63.0
165742 ncm-et-15 1301768 500 206 42 252 +118.33 +/- 14.03 1 5 79 159 6 +261.07 +/- 38.58
165741 ncm-et-13 1299161 500 207 46 247 +116.0 +/- 15.0 1 10 73 159 7 +251.89 +/- 40.18
165740 ncm-et-10 1294108 500 208 61 231 +105.25 +/- 13.88 0 10 86 151 3 +228.08 +/- 36.98
165739 ncm-et-3 1310363 500 208 43 249 +119.11 +/- 14.36 0 9 74 160 7 +258.75 +/- 39.96
165738 ncm-et-4 1312392 500 217 62 221 +111.37 +/- 13.39 0 4 93 147 6 +238.66 +/- 35.13
165737 ncm-et-9 1292971 500 211 66 223 +103.73 +/- 15.1 0 11 93 136 10 +209.91 +/- 35.49
165736 ncm-et-13 1314378 500 207 47 246 +115.22 +/- 14.69 0 15 63 169 3 +256.44 +/- 42.76
165735 ncm-et-15 1292398 500 201 55 244 +104.49 +/- 14.96 0 12 88 142 8 +215.85 +/- 36.55
165734 ncm-et-3 1312749 500 186 57 257 +91.71 +/- 13.42 0 10 102 137 1 +196.45 +/- 33.71
165733 ncm-et-4 1296374 500 198 51 251 +105.25 +/- 14.51 0 12 84 149 5 +223.94 +/- 37.43
165732 ncm-et-10 1304965 500 194 47 259 +105.25 +/- 14.2 1 7 91 146 5 +226.0 +/- 35.82
165731 ncm-et-9 1298452 500 216 50 234 +119.89 +/- 14.02 0 11 65 171 3 +270.57 +/- 42.52
165730 ncm-et-9 1293528 500 207 62 231 +103.73 +/- 14.34 0 11 88 146 5 +219.87 +/- 36.54
165729 ncm-et-13 1304878 500 219 61 220 +113.68 +/- 13.72 0 8 80 158 4 +249.64 +/- 38.38
165728 ncm-et-4 1318340 500 208 57 235 +108.3 +/- 13.73 0 8 87 151 4 +234.38 +/- 36.71
165727 ncm-et-10 1294584 500 211 53 236 +113.68 +/- 15.15 1 12 71 160 6 +247.41 +/- 40.63
165726 ncm-et-15 1307619 500 210 35 255 +126.97 +/- 13.41 0 5 71 168 6 +285.49 +/- 40.81
165725 ncm-et-3 1299643 500 198 54 248 +102.97 +/- 13.21 0 7 94 147 2 +223.94 +/- 35.14

Commit

Commit ID 8f843633db3faaf447cc191cbaed9f5ddfd374bd
Author Michael Chaly
Date 2023-02-09 06:45:05 UTC
Cleanup and reorder in qsearch This patch is a simplification / code normalisation in qsearch. Adds steps in comments the same way we have in search; Makes a separate "pruning" stage instead of heuristics randomly being spread over qsearch code; Reorders pruning heuristics from least taxing ones to more taxing ones; Removes repeated check for best value not being mated, instead uses 1 check - thus removes some lines of code. Moves prefetch and move setup after pruning - makes no sense to do them if move will actually get pruned. Passed non-regression test: https://tests.stockfishchess.org/tests/view/63dd2c5ff9a50a69252c1413 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 113504 W: 29898 L: 29770 D: 53836 Ptnml(0-2): 287, 11861, 32327, 11991, 286 https://github.com/official-stockfish/Stockfish/pull/4382 Non-functional change.
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