Dev Builds » 20210805-1441

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 08:18:48 1957282 3343 2819 4 520 +426.72 +/- 14.92
ncm-et-4 08:17:00 1960913 3333 2841 3 489 +438.3 +/- 15.39
ncm-et-9 08:17:02 1957896 3326 2805 7 514 +425.76 +/- 15.02
ncm-et-10 08:16:30 1957055 3310 2804 8 498 +429.92 +/- 15.27
ncm-et-13 08:16:10 1964717 3344 2839 10 495 +431.48 +/- 15.32
ncm-et-15 08:15:51 1964909 3344 2829 14 501 +426.42 +/- 15.24
20000 16937 46 3017 +429.72 +/- 6.19

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
150560 ncm-et-10 2021-08-08 19:28 00:46:25 1964024 310 266 2 42 +438.46 +/- 53.87
150559 ncm-et-9 2021-08-08 19:25 00:49:29 1959696 326 272 0 54 +417.72 +/- 47.01
150558 ncm-et-4 2021-08-08 19:24 00:50:10 1950855 333 283 0 50 +436.24 +/- 49.0
150557 ncm-et-15 2021-08-08 19:23 00:51:16 1968027 344 297 1 46 +449.98 +/- 51.35
150556 ncm-et-13 2021-08-08 19:22 00:51:52 1964772 344 296 0 48 +449.97 +/- 50.1
150555 ncm-et-3 2021-08-08 19:22 00:52:07 1956529 343 292 0 51 +438.07 +/- 48.5
150554 ncm-et-10 2021-08-08 18:11 01:15:46 1953177 500 422 1 77 +426.65 +/- 39.25
150553 ncm-et-9 2021-08-08 18:10 01:13:59 1968017 500 411 1 88 +401.92 +/- 36.6
150552 ncm-et-15 2021-08-08 18:09 01:13:38 1968353 500 430 1 69 +446.7 +/- 41.57
150551 ncm-et-13 2021-08-08 18:08 01:13:48 1966928 500 421 2 77 +421.93 +/- 39.29
150550 ncm-et-4 2021-08-08 18:08 01:15:31 1957718 500 433 1 66 +454.76 +/- 42.55
150549 ncm-et-3 2021-08-08 18:07 01:14:13 1955571 500 424 1 75 +431.48 +/- 39.8
150548 ncm-et-10 2021-08-08 16:57 01:13:32 1959712 500 430 3 67 +441.5 +/- 42.25
150547 ncm-et-9 2021-08-08 16:55 01:15:00 1957858 500 424 0 76 +433.94 +/- 39.45
150546 ncm-et-15 2021-08-08 16:54 01:14:10 1957572 500 424 3 73 +426.65 +/- 40.41
150545 ncm-et-4 2021-08-08 16:53 01:14:00 1958020 500 427 0 73 +441.5 +/- 40.29
150544 ncm-et-13 2021-08-08 16:52 01:15:28 1955438 500 438 1 61 +468.96 +/- 44.35
150543 ncm-et-3 2021-08-08 16:51 01:15:12 1957706 500 417 0 83 +417.31 +/- 37.67
150542 ncm-et-10 2021-08-08 15:42 01:14:34 1956336 500 428 0 72 +444.08 +/- 40.59
150541 ncm-et-15 2021-08-08 15:40 01:13:30 1965073 500 423 3 74 +424.28 +/- 40.13
150540 ncm-et-4 2021-08-08 15:38 01:14:18 1960619 500 423 0 77 +431.48 +/- 39.18
150539 ncm-et-9 2021-08-08 15:38 01:15:59 1941063 500 430 0 70 +449.35 +/- 41.19
150538 ncm-et-13 2021-08-08 15:38 01:13:24 1965544 500 424 2 74 +429.05 +/- 40.11
150537 ncm-et-3 2021-08-08 15:37 01:13:43 1967475 500 425 1 74 +433.94 +/- 40.08
150536 ncm-et-10 2021-08-08 14:26 01:15:03 1958933 500 419 0 81 +421.93 +/- 38.15
150535 ncm-et-4 2021-08-08 14:24 01:13:25 1962770 500 429 1 70 +444.09 +/- 41.26
150534 ncm-et-15 2021-08-08 14:23 01:15:26 1956946 500 408 1 91 +395.65 +/- 35.96
150533 ncm-et-13 2021-08-08 14:23 01:14:25 1969558 500 417 1 82 +415.05 +/- 37.98
150532 ncm-et-9 2021-08-08 14:22 01:15:22 1957399 500 422 0 78 +429.05 +/- 38.92
150531 ncm-et-3 2021-08-08 14:21 01:15:29 1952706 500 426 0 74 +438.95 +/- 40.01
150530 ncm-et-10 2021-08-08 13:10 01:15:52 1957260 500 430 2 68 +444.09 +/- 41.92
150529 ncm-et-4 2021-08-08 13:09 01:14:15 1977325 500 428 1 71 +441.5 +/- 40.95
150528 ncm-et-15 2021-08-08 13:09 01:14:12 1962623 500 420 3 77 +417.32 +/- 39.31
150527 ncm-et-13 2021-08-08 13:08 01:13:35 1962157 500 430 2 68 +444.09 +/- 41.92
150526 ncm-et-9 2021-08-08 13:07 01:13:59 1960156 500 424 2 74 +429.05 +/- 40.11
150525 ncm-et-3 2021-08-08 13:07 01:12:52 1967077 500 421 2 77 +421.93 +/- 39.29
150524 ncm-et-15 2021-08-08 11:54 01:13:39 1975772 500 427 2 71 +436.43 +/- 40.99
150523 ncm-et-13 2021-08-08 11:54 01:13:38 1968627 500 413 2 85 +404.05 +/- 37.32
150522 ncm-et-10 2021-08-08 11:54 01:15:18 1949943 500 409 0 91 +399.81 +/- 35.89
150521 ncm-et-9 2021-08-08 11:54 01:13:14 1961087 500 422 4 74 +419.61 +/- 40.12
150520 ncm-et-4 2021-08-08 11:53 01:15:21 1959088 500 418 0 82 +419.61 +/- 37.91
150519 ncm-et-3 2021-08-08 11:52 01:15:12 1943915 500 414 0 86 +410.58 +/- 36.97

Commit

Commit ID dabaf2220fe0c77400a5f71a91952f510e6a126b
Author Joost VandeVondele
Date 2021-08-05 14:41:07 UTC
Revert futility pruning patches reverts 09b6d28391cf582d99897360b225bcbbe38dd1c6 and dbd7f602d3c7622df294f87d7239b5aaf31f695f that significantly impact mate finding capabilities. For example on ChestUCI_23102018.epd, at 1M nodes, the number of mates found is nearly reduced 2x without these depth conditions: sf6 2091 sf7 2093 sf8 2107 sf9 2062 sf10 2208 sf11 2552 sf12 2563 sf13 2509 sf14 2427 master 1246 patched 2467 (script for testing at https://github.com/official-stockfish/Stockfish/files/6936412/matecheck.zip) closes https://github.com/official-stockfish/Stockfish/pull/3641 fixes https://github.com/official-stockfish/Stockfish/issues/3627 Bench: 5467570
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