Dev Builds » 20200808-2008

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 08:35:30 1963204 3348 2323 58 967 +285.83 +/- 10.93
ncm-et-4 08:35:17 1964322 3326 2353 51 922 +296.02 +/- 11.2
ncm-et-9 08:35:10 1966499 3339 2338 52 949 +291.08 +/- 11.03
ncm-et-10 08:34:56 1962386 3345 2312 63 970 +283.16 +/- 10.92
ncm-et-13 08:35:28 1960129 3302 2284 54 964 +285.07 +/- 10.95
ncm-et-15 08:35:28 1967692 3340 2325 56 959 +287.64 +/- 10.98
20000 13935 334 5731 +288.1 +/- 4.49

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
138069 ncm-et-13 2020-09-11 20:49 00:47:05 1963084 302 201 6 95 +266.79 +/- 35.09
138068 ncm-et-4 2020-09-11 20:46 00:50:37 1970494 326 235 6 85 +303.01 +/- 37.27
138067 ncm-et-9 2020-09-11 20:45 00:51:11 1970973 339 235 7 97 +283.3 +/- 34.81
138066 ncm-et-3 2020-09-11 20:43 00:52:52 1963378 348 250 8 90 +298.22 +/- 36.21
138065 ncm-et-15 2020-09-11 20:43 00:52:53 1966460 340 236 6 98 +285.79 +/- 34.6
138064 ncm-et-10 2020-09-11 20:43 00:53:09 1968157 345 246 6 93 +298.39 +/- 35.57
138063 ncm-et-13 2020-09-11 19:31 01:17:33 1959545 500 352 9 139 +291.97 +/- 29.0
138062 ncm-et-4 2020-09-11 19:27 01:17:05 1964920 500 349 11 140 +285.49 +/- 28.92
138061 ncm-et-9 2020-09-11 19:26 01:17:32 1967555 500 348 9 143 +286.77 +/- 28.58
138060 ncm-et-15 2020-09-11 19:25 01:16:57 1970172 500 351 8 141 +291.97 +/- 28.77
138059 ncm-et-10 2020-09-11 19:25 01:16:44 1963093 500 321 9 170 +254.16 +/- 26.05
138058 ncm-et-3 2020-09-11 19:25 01:17:40 1965534 500 353 8 139 +294.61 +/- 28.99
138057 ncm-et-13 2020-09-11 18:13 01:16:57 1962609 500 346 4 150 +290.66 +/- 27.71
138056 ncm-et-4 2020-09-11 18:10 01:15:59 1970172 500 342 4 154 +285.49 +/- 27.32
138055 ncm-et-9 2020-09-11 18:08 01:17:35 1962922 500 347 9 144 +285.49 +/- 28.47
138054 ncm-et-10 2020-09-11 18:07 01:16:23 1960029 500 348 7 145 +289.36 +/- 28.32
138053 ncm-et-3 2020-09-11 18:07 01:16:42 1962767 500 342 9 149 +279.17 +/- 27.96
138052 ncm-et-15 2020-09-11 18:07 01:17:30 1973585 500 355 8 137 +297.28 +/- 29.21
138051 ncm-et-13 2020-09-11 16:53 01:18:23 1961996 500 322 12 166 +251.89 +/- 26.45
138050 ncm-et-4 2020-09-11 16:52 01:17:45 1966337 500 356 6 138 +301.33 +/- 29.05
138049 ncm-et-9 2020-09-11 16:51 01:15:54 1970176 500 337 8 155 +274.22 +/- 27.36
138048 ncm-et-3 2020-09-11 16:50 01:15:52 1963686 500 333 13 154 +263.42 +/- 27.54
138047 ncm-et-10 2020-09-11 16:49 01:16:57 1966305 500 351 13 136 +285.49 +/- 29.36
138046 ncm-et-15 2020-09-11 16:49 01:16:26 1967391 500 345 13 142 +277.93 +/- 28.72
138045 ncm-et-4 2020-09-11 15:33 01:17:04 1970190 500 350 13 137 +284.22 +/- 29.25
138044 ncm-et-13 2020-09-11 15:33 01:18:43 1951189 500 365 6 129 +313.91 +/- 30.1
138043 ncm-et-10 2020-09-11 15:32 01:16:24 1962616 500 362 11 127 +302.7 +/- 30.4
138042 ncm-et-9 2020-09-11 15:32 01:18:04 1963533 500 358 5 137 +305.45 +/- 29.13
138041 ncm-et-3 2020-09-11 15:32 01:17:27 1962150 500 342 4 154 +285.49 +/- 27.32
138040 ncm-et-15 2020-09-11 15:30 01:18:42 1961417 500 359 5 136 +306.84 +/- 29.25
138039 ncm-et-13 2020-09-11 14:15 01:16:53 1964302 500 354 9 137 +294.61 +/- 29.22
138038 ncm-et-9 2020-09-11 14:14 01:16:25 1970024 500 360 6 134 +306.84 +/- 29.51
138037 ncm-et-4 2020-09-11 14:13 01:19:26 1939031 500 369 5 126 +321.19 +/- 30.45
138036 ncm-et-3 2020-09-11 14:12 01:17:58 1961381 500 345 8 147 +284.22 +/- 28.14
138035 ncm-et-15 2020-09-11 14:12 01:16:52 1970962 500 333 3 164 +275.45 +/- 26.35
138034 ncm-et-10 2020-09-11 14:11 01:19:36 1957105 500 343 10 147 +279.17 +/- 28.18
138033 ncm-et-10 2020-09-11 12:55 01:15:43 1959398 500 341 7 152 +280.42 +/- 27.62
138032 ncm-et-9 2020-09-11 12:55 01:18:29 1960315 500 353 8 139 +294.61 +/- 28.99
138031 ncm-et-4 2020-09-11 12:54 01:17:21 1969110 500 352 6 142 +295.94 +/- 28.61
138030 ncm-et-13 2020-09-11 12:54 01:19:54 1958181 500 344 8 148 +282.94 +/- 28.04
138029 ncm-et-3 2020-09-11 12:54 01:16:59 1963532 500 358 8 134 +301.33 +/- 29.55
138028 ncm-et-15 2020-09-11 12:54 01:16:08 1963859 500 346 13 141 +279.17 +/- 28.82

Commit

Commit ID e663bc533020183c0c52eaf877a91422c9c80742
Author Vizvezdenec
Date 2020-08-08 20:08:55 UTC
Do more aggressive futility pruning for captures This patch lines up with other patches which use better eval to produce more aggressive cutoffs based on static evaluation of position, it allows more aggressive futility pruning for captures - so now we will be producing them with bigger evaluation of position, so more often. passed STC https://tests.stockfishchess.org/tests/view/5f2da79e61e3b6af64881fd2 LLR: 3.87 (-2.94,2.94) {-0.50,1.50} Total: 27256 W: 3809 L: 3593 D: 19854 Ptnml(0-2): 221, 2578, 7830, 2762, 237 passed LTC https://tests.stockfishchess.org/tests/view/5f2df92061e3b6af64882012 LLR: 4.97 (-2.94,2.94) {0.25,1.75} Total: 43624 W: 3095 L: 2820 D: 37709 Ptnml(0-2): 66, 2410, 16608, 2639, 89 closes https://github.com/official-stockfish/Stockfish/pull/2946 Bench: 4272280
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