Dev Builds » 20201028-2240

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 08:24:01 1963272 3339 2609 16 714 +360.18 +/- 12.72
ncm-et-4 08:23:45 1967182 3348 2610 20 718 +357.59 +/- 12.69
ncm-et-9 08:24:12 1967088 3344 2642 14 688 +368.48 +/- 12.96
ncm-et-10 08:24:08 1960672 3318 2614 16 688 +365.88 +/- 12.96
ncm-et-13 08:24:25 1960793 3314 2611 17 686 +365.64 +/- 12.99
ncm-et-15 08:23:48 1966891 3337 2635 18 684 +366.99 +/- 13.01
20000 15721 101 4178 +364.09 +/- 5.26

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
140211 ncm-et-13 2020-10-29 19:53 00:47:48 1962304 314 252 2 60 +378.04 +/- 44.61
140210 ncm-et-10 2020-10-29 19:52 00:48:23 1967233 318 252 1 65 +371.61 +/- 42.69
140209 ncm-et-15 2020-10-29 19:50 00:50:48 1967849 337 260 1 76 +353.26 +/- 39.31
140208 ncm-et-9 2020-10-29 19:48 00:52:01 1968318 344 275 0 69 +381.13 +/- 41.29
140207 ncm-et-3 2020-10-29 19:48 00:52:10 1960767 339 262 1 76 +354.42 +/- 39.32
140206 ncm-et-4 2020-10-29 19:47 00:53:34 1965565 348 273 3 72 +359.56 +/- 40.61
140205 ncm-et-13 2020-10-29 18:36 01:15:29 1960001 500 397 2 101 +372.25 +/- 34.1
140204 ncm-et-10 2020-10-29 18:35 01:16:27 1953890 500 403 3 94 +381.7 +/- 35.44
140203 ncm-et-3 2020-10-29 18:34 01:13:37 1961383 500 384 3 113 +347.77 +/- 32.18
140202 ncm-et-15 2020-10-29 18:33 01:15:44 1969255 500 383 4 113 +344.48 +/- 32.22
140201 ncm-et-4 2020-10-29 18:32 01:14:08 1959237 500 400 2 98 +377.87 +/- 34.64
140200 ncm-et-9 2020-10-29 18:31 01:16:03 1961535 500 384 2 114 +349.43 +/- 31.99
140199 ncm-et-13 2020-10-29 17:21 01:14:20 1962455 500 400 2 98 +377.87 +/- 34.64
140198 ncm-et-10 2020-10-29 17:18 01:15:32 1964625 500 392 2 106 +363.2 +/- 33.24
140197 ncm-et-15 2020-10-29 17:16 01:15:32 1964617 500 393 1 106 +366.78 +/- 33.19
140196 ncm-et-3 2020-10-29 17:16 01:16:30 1965689 500 386 3 111 +351.11 +/- 32.49
140195 ncm-et-4 2020-10-29 17:15 01:15:33 1967694 500 390 4 106 +356.21 +/- 33.31
140194 ncm-et-9 2020-10-29 17:15 01:15:44 1965538 500 398 4 98 +370.41 +/- 34.7
140193 ncm-et-13 2020-10-29 16:03 01:17:03 1958474 500 389 3 108 +356.21 +/- 32.96
140192 ncm-et-10 2020-10-29 16:01 01:16:05 1962463 500 394 7 99 +357.94 +/- 34.53
140191 ncm-et-3 2020-10-29 16:00 01:15:33 1963839 500 404 2 94 +385.59 +/- 35.4
140190 ncm-et-15 2020-10-29 15:59 01:16:01 1961689 500 398 2 100 +374.11 +/- 34.27
140189 ncm-et-4 2020-10-29 15:59 01:15:14 1970637 500 389 2 109 +357.94 +/- 32.76
140188 ncm-et-9 2020-10-29 15:58 01:15:38 1968477 500 394 1 105 +368.59 +/- 33.35
140187 ncm-et-13 2020-10-29 14:44 01:17:26 1962148 500 385 3 112 +349.43 +/- 32.33
140186 ncm-et-10 2020-10-29 14:44 01:15:47 1959242 500 399 2 99 +375.98 +/- 34.46
140185 ncm-et-3 2020-10-29 14:43 01:15:17 1967385 500 397 2 101 +372.25 +/- 34.1
140184 ncm-et-4 2020-10-29 14:43 01:14:34 1966616 500 389 2 109 +357.94 +/- 32.76
140183 ncm-et-15 2020-10-29 14:43 01:14:56 1972036 500 403 4 93 +379.78 +/- 35.66
140182 ncm-et-9 2020-10-29 14:42 01:14:26 1970484 500 393 2 105 +364.98 +/- 33.41
140181 ncm-et-15 2020-10-29 13:27 01:14:39 1968942 500 395 1 104 +370.41 +/- 33.52
140180 ncm-et-13 2020-10-29 13:27 01:15:53 1963072 500 408 2 90 +393.6 +/- 36.22
140179 ncm-et-3 2020-10-29 13:27 01:15:09 1959694 500 395 1 104 +370.41 +/- 33.52
140178 ncm-et-10 2020-10-29 13:26 01:16:29 1957248 500 382 1 117 +347.77 +/- 31.5
140177 ncm-et-4 2020-10-29 13:26 01:15:37 1971722 500 395 2 103 +368.59 +/- 33.75
140176 ncm-et-9 2020-10-29 13:26 01:15:33 1972184 500 398 3 99 +372.25 +/- 34.49
140175 ncm-et-4 2020-10-29 12:10 01:15:05 1968804 500 374 5 121 +328.7 +/- 31.11
140174 ncm-et-15 2020-10-29 12:10 01:16:08 1963850 500 403 5 92 +377.87 +/- 35.86
140173 ncm-et-3 2020-10-29 12:10 01:15:45 1964148 500 381 4 115 +341.24 +/- 31.92
140172 ncm-et-10 2020-10-29 12:10 01:15:25 1960008 500 392 0 108 +366.77 +/- 32.8
140171 ncm-et-9 2020-10-29 12:10 01:14:47 1963083 500 400 2 98 +377.87 +/- 34.64
140170 ncm-et-13 2020-10-29 12:10 01:16:26 1957097 500 380 3 117 +341.24 +/- 31.6

Commit

Commit ID 0f6c08c73f516873b312cb8fce0d824a2167b075
Author syzygy1
Date 2020-10-28 22:40:37 UTC
Do not skip non-recapture ttMove when in check The qsearch() MovePicker incorrectly skips a non-recapture ttMove when in check (if depth <= DEPTH_QS_RECAPTURES). This is clearly not intended and can cause qsearch() to return a mate score when there is no mate. Introduced in cad300c and 6596f0e, as observed by joergoster in #3171 and #3198. This PR fixes the bug by not skipping the non-recapture ttMove when in check. Passed non-regression STC: https://tests.stockfishchess.org/tests/view/5f9867ea6a2c112b60691b10 LLR: 2.98 (-2.94,2.94) {-1.25,0.25} Total: 27112 W: 2943 L: 2842 D: 21327 Ptnml(0-2): 127, 2170, 8878, 2237, 144 Passed non-regression LTC: https://tests.stockfishchess.org/tests/view/5f9967326a2c112b60691bb0 LLR: 2.99 (-2.94,2.94) {-0.75,0.25} Total: 18392 W: 807 L: 738 D: 16847 Ptnml(0-2): 9, 655, 7802, 718, 12 closes https://github.com/official-stockfish/Stockfish/pull/3199 closes https://github.com/official-stockfish/Stockfish/pull/3198 Bench: 3870606
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