Dev Builds » 20210907-1759

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 08:18:00 1957279 3345 2834 9 502 +429.71 +/- 15.21
ncm-et-4 08:17:52 1959048 3340 2877 5 458 +449.19 +/- 15.92
ncm-et-9 08:17:32 1962705 3345 2855 4 486 +439.35 +/- 15.45
ncm-et-10 08:18:02 1955874 3322 2836 7 479 +438.44 +/- 15.57
ncm-et-13 08:17:55 1961000 3343 2860 7 476 +440.77 +/- 15.62
ncm-et-15 08:18:09 1956677 3305 2838 4 463 +446.03 +/- 15.83
20000 17100 36 2864 +440.48 +/- 6.36

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
151484 ncm-et-15 2021-09-08 06:43 00:45:20 1961233 305 257 1 47 +423.51 +/- 50.71
151483 ncm-et-10 2021-09-08 06:40 00:47:48 1955728 322 278 1 43 +449.69 +/- 53.21
151482 ncm-et-9 2021-09-08 06:37 00:51:21 1959392 345 294 1 50 +435.53 +/- 49.13
151481 ncm-et-13 2021-09-08 06:37 00:51:22 1967699 343 297 1 45 +453.36 +/- 51.96
151480 ncm-et-4 2021-09-08 06:37 00:51:22 1942594 340 298 0 42 +472.62 +/- 53.81
151479 ncm-et-3 2021-09-08 06:36 00:51:48 1959748 345 286 3 56 +402.23 +/- 46.31
151478 ncm-et-15 2021-09-08 05:26 01:16:30 1953166 500 435 0 65 +463.15 +/- 42.83
151477 ncm-et-10 2021-09-08 05:25 01:15:12 1956333 500 426 1 73 +436.43 +/- 40.36
151476 ncm-et-3 2021-09-08 05:23 01:12:59 1966112 500 416 2 82 +410.58 +/- 38.02
151475 ncm-et-13 2021-09-08 05:23 01:13:30 1969550 500 436 3 61 +457.52 +/- 44.35
151474 ncm-et-9 2021-09-08 05:22 01:14:06 1966770 500 436 0 64 +466.03 +/- 43.18
151473 ncm-et-4 2021-09-08 05:21 01:15:32 1958326 500 430 0 70 +449.35 +/- 41.19
151472 ncm-et-10 2021-09-08 04:10 01:13:33 1961388 500 420 2 78 +419.61 +/- 39.03
151471 ncm-et-15 2021-09-08 04:10 01:15:25 1955886 500 431 0 69 +452.04 +/- 41.5
151470 ncm-et-9 2021-09-08 04:07 01:14:24 1962153 500 415 0 85 +412.8 +/- 37.2
151469 ncm-et-4 2021-09-08 04:07 01:12:53 1983734 500 436 0 64 +466.03 +/- 43.18
151468 ncm-et-3 2021-09-08 04:07 01:15:13 1946021 500 435 1 64 +460.32 +/- 43.24
151467 ncm-et-13 2021-09-08 04:06 01:15:47 1949938 500 425 1 74 +433.94 +/- 40.08
151466 ncm-et-15 2021-09-08 02:55 01:14:39 1956028 500 421 1 78 +424.28 +/- 38.99
151465 ncm-et-10 2021-09-08 02:54 01:16:12 1948606 500 429 0 71 +446.7 +/- 40.89
151464 ncm-et-3 2021-09-08 02:53 01:13:07 1966615 500 428 0 72 +444.08 +/- 40.59
151463 ncm-et-4 2021-09-08 02:53 01:13:45 1958326 500 426 2 72 +433.94 +/- 40.69
151462 ncm-et-13 2021-09-08 02:51 01:14:37 1956036 500 409 0 91 +399.81 +/- 35.89
151461 ncm-et-9 2021-09-08 02:50 01:16:40 1958635 500 433 1 66 +454.76 +/- 42.55
151460 ncm-et-4 2021-09-08 01:39 01:13:18 1965077 500 426 2 72 +433.94 +/- 40.69
151459 ncm-et-10 2021-09-08 01:39 01:14:20 1954518 500 436 1 63 +463.16 +/- 43.6
151458 ncm-et-15 2021-09-08 01:39 01:15:22 1954204 500 426 1 73 +436.43 +/- 40.36
151457 ncm-et-3 2021-09-08 01:38 01:14:35 1951011 500 419 2 79 +417.32 +/- 38.77
151456 ncm-et-13 2021-09-08 01:37 01:12:59 1962921 500 433 0 67 +457.52 +/- 42.15
151455 ncm-et-9 2021-09-08 01:35 01:14:01 1964154 500 429 0 71 +446.7 +/- 40.89
151454 ncm-et-4 2021-09-08 00:23 01:14:57 1949247 500 432 0 68 +454.76 +/- 41.82
151453 ncm-et-15 2021-09-08 00:22 01:15:40 1955913 500 422 0 78 +429.05 +/- 38.92
151452 ncm-et-10 2021-09-08 00:22 01:15:54 1951939 500 428 1 71 +441.5 +/- 40.95
151451 ncm-et-3 2021-09-08 00:22 01:15:14 1955116 500 425 1 74 +433.94 +/- 40.08
151450 ncm-et-13 2021-09-08 00:22 01:15:06 1953453 500 419 2 79 +417.32 +/- 38.77
151449 ncm-et-9 2021-09-08 00:21 01:14:07 1964301 500 418 2 80 +415.05 +/- 38.52
151448 ncm-et-9 2021-09-07 23:07 01:12:53 1963536 500 430 0 70 +449.35 +/- 41.19
151447 ncm-et-13 2021-09-07 23:06 01:14:34 1967403 500 441 0 59 +481.09 +/- 45.07
151446 ncm-et-4 2021-09-07 23:06 01:16:05 1956034 500 429 1 70 +444.09 +/- 41.26
151445 ncm-et-15 2021-09-07 23:06 01:15:13 1960311 500 446 1 53 +494.03 +/- 47.75
151444 ncm-et-10 2021-09-07 23:06 01:15:03 1962611 500 419 1 80 +419.61 +/- 38.47
151443 ncm-et-3 2021-09-07 23:06 01:15:04 1956334 500 425 0 75 +436.43 +/- 39.73

Commit

Commit ID b7b6b4ba18bc9d291c2c2fd300c22a3e008dcbb2
Author Stefan Geschwentner
Date 2021-09-07 17:59:14 UTC
Further improve history updates Now even double history updates if a search failed low at an expected PV or CUT node. STC: LLR: 2.93 (-2.94,2.94) <-0.50,2.50> Total: 30736 W: 7891 L: 7674 D: 15171 Ptnml(0-2): 90, 3477, 8017, 3694, 90 https://tests.stockfishchess.org/tests/view/61364ae30cd98ab40c0c9da5 LTC: LLR: 2.94 (-2.94,2.94) <0.50,3.50> Total: 73600 W: 18684 L: 18326 D: 36590 Ptnml(0-2): 41, 7734, 20899, 8078, 48 https://tests.stockfishchess.org/tests/view/6136940f0cd98ab40c0c9df3 closes https://github.com/official-stockfish/Stockfish/pull/3694 Bench: 6030657
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