Dev Builds » 20200809-1926

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 7. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host Duration Avg Base NPS Games Wins Losses Draws Elo
ncm-et-3 08:38:42 1964086 3326 2306 56 964 +285.8 +/- 10.95
ncm-et-4 08:38:50 1951130 3295 2283 55 957 +285.6 +/- 10.99
ncm-et-9 08:39:00 1966880 3326 2297 59 970 +283.5 +/- 10.92
ncm-et-10 08:38:55 1961199 3334 2335 49 950 +291.75 +/- 11.02
ncm-et-13 08:38:53 1964559 3359 2328 54 977 +286.12 +/- 10.87
ncm-et-15 08:39:07 1968829 3360 2324 53 983 +285.42 +/- 10.84
20000 13873 326 5801 +286.36 +/- 4.46

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
136831 ncm-et-4 2020-09-01 03:51 00:46:07 1965539 295 196 8 91 +261.83 +/- 35.95
136830 ncm-et-3 2020-09-01 03:46 00:50:44 1965534 326 222 3 101 +282.81 +/- 33.85
136829 ncm-et-9 2020-09-01 03:46 00:51:08 1958624 326 215 4 107 +267.71 +/- 32.86
136828 ncm-et-10 2020-09-01 03:44 00:53:04 1963240 334 221 7 106 +263.84 +/- 33.2
136827 ncm-et-13 2020-09-01 03:42 00:54:30 1963691 359 241 2 116 +279.01 +/- 31.4
136826 ncm-et-15 2020-09-01 03:41 00:55:54 1970327 360 246 3 111 +284.85 +/- 32.25
136825 ncm-et-4 2020-09-01 02:32 01:17:42 1969704 500 352 5 143 +297.28 +/- 28.47
136824 ncm-et-3 2020-09-01 02:28 01:17:13 1965381 500 346 9 145 +284.22 +/- 28.37
136823 ncm-et-9 2020-09-01 02:27 01:18:03 1969118 500 351 5 144 +295.94 +/- 28.37
136822 ncm-et-10 2020-09-01 02:24 01:18:20 1957553 500 361 5 134 +309.64 +/- 29.48
136821 ncm-et-15 2020-09-01 02:24 01:16:18 1971742 500 348 5 147 +291.97 +/- 28.06
136820 ncm-et-13 2020-09-01 02:23 01:17:45 1963381 500 352 9 139 +291.97 +/- 29.0
136819 ncm-et-4 2020-09-01 01:14 01:17:22 1973285 500 333 10 157 +266.97 +/- 27.22
136818 ncm-et-3 2020-09-01 01:08 01:18:44 1966768 500 345 9 146 +282.94 +/- 28.27
136817 ncm-et-9 2020-09-01 01:08 01:17:47 1962305 500 361 11 128 +301.33 +/- 30.28
136816 ncm-et-10 2020-09-01 01:05 01:17:55 1962469 500 352 5 143 +297.28 +/- 28.47
136815 ncm-et-15 2020-09-01 01:05 01:17:35 1969240 500 365 10 125 +308.24 +/- 30.65
136814 ncm-et-13 2020-09-01 01:04 01:18:10 1974708 500 364 10 126 +306.84 +/- 30.53
136813 ncm-et-4 2020-08-31 23:55 01:17:16 1965073 500 353 10 137 +291.97 +/- 29.24
136812 ncm-et-3 2020-08-31 23:49 01:17:23 1963226 500 337 4 159 +279.17 +/- 26.85
136811 ncm-et-9 2020-08-31 23:49 01:17:20 1975914 500 343 6 151 +284.22 +/- 27.69
136810 ncm-et-10 2020-08-31 23:48 01:16:27 1961702 500 350 5 145 +294.61 +/- 28.26
136809 ncm-et-15 2020-08-31 23:47 01:17:13 1966613 500 337 9 154 +273.0 +/- 27.48
136808 ncm-et-13 2020-08-31 23:44 01:19:10 1963224 500 340 9 151 +276.69 +/- 27.77
136807 ncm-et-4 2020-08-31 22:36 01:18:33 1966151 500 345 6 149 +286.77 +/- 27.89
136806 ncm-et-3 2020-08-31 22:30 01:17:56 1965996 500 347 11 142 +282.94 +/- 28.71
136805 ncm-et-9 2020-08-31 22:30 01:17:59 1960618 500 347 12 141 +281.68 +/- 28.82
136804 ncm-et-10 2020-08-31 22:29 01:17:36 1960155 500 359 8 133 +302.7 +/- 29.67
136803 ncm-et-15 2020-08-31 22:28 01:17:32 1967548 500 354 4 142 +301.33 +/- 28.54
136802 ncm-et-13 2020-08-31 22:26 01:16:51 1963840 500 343 10 147 +279.17 +/- 28.18
136801 ncm-et-4 2020-08-31 21:16 01:18:58 1943257 500 356 9 135 +297.28 +/- 29.45
136800 ncm-et-10 2020-08-31 21:11 01:16:49 1965266 500 351 12 137 +286.77 +/- 29.25
136799 ncm-et-9 2020-08-31 21:10 01:18:50 1973114 500 341 11 148 +275.45 +/- 28.09
136798 ncm-et-3 2020-08-31 21:10 01:19:17 1961083 500 349 9 142 +288.06 +/- 28.68
136797 ncm-et-15 2020-08-31 21:10 01:17:00 1967549 500 326 8 166 +261.07 +/- 26.36
136796 ncm-et-13 2020-08-31 21:09 01:16:02 1961691 500 331 9 160 +265.78 +/- 26.92
136795 ncm-et-4 2020-08-31 19:52 01:22:52 1874906 500 348 7 145 +289.36 +/- 28.32
136794 ncm-et-3 2020-08-31 19:52 01:17:25 1960614 500 360 11 129 +299.97 +/- 30.16
136793 ncm-et-9 2020-08-31 19:52 01:17:53 1968468 500 339 10 151 +274.22 +/- 27.78
136792 ncm-et-10 2020-08-31 19:51 01:18:44 1958013 500 341 7 152 +280.42 +/- 27.62
136791 ncm-et-13 2020-08-31 19:51 01:16:25 1961381 500 357 5 138 +304.07 +/- 29.02
136790 ncm-et-15 2020-08-31 19:51 01:17:35 1968785 500 348 14 138 +280.42 +/- 29.14

Commit

Commit ID 2bfde5542919c2ed624b5b62883616e325ccb942
Author Vizvezdenec
Date 2020-08-09 19:26:17 UTC
Adjust NNUE usage based on number of pawns in position The idea of this patch is that positions are usually more complex and hard to evaluate even if there are more pawns. This patch adjusts NNUE threshold usage depending on number of pawns in position, if pawn count is <3 we use the classical evaluation more often, for pawn count = 3 patch the is non-functional, with pawn count > 3 NNUE evaluation is used more often. passed STC https://tests.stockfishchess.org/tests/view/5f2f02d09081672066536b1f LLR: 2.96 (-2.94,2.94) {-0.50,1.50} Total: 36520 W: 5011 L: 4823 D: 26686 Ptnml(0-2): 299, 3482, 10548, 3594, 337 passed LTC https://tests.stockfishchess.org/tests/view/5f2f4c329081672066536b5c LLR: 2.98 (-2.94,2.94) {0.25,1.75} Total: 39272 W: 2630 L: 2433 D: 34209 Ptnml(0-2): 53, 2066, 15218, 2229, 70 closes https://github.com/official-stockfish/Stockfish/pull/2960 bench 4084753
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