Dev Builds » 20201022-1850

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

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 08:22:33 1961869 3317 2640 23 654 +371.3 ± 13.32
ncm-et-4 08:22:59 1968148 3354 2651 12 691 +369.34 ± 12.93
ncm-et-9 08:22:54 1969690 3332 2605 15 712 +360.83 ± 12.74
ncm-et-10 08:23:25 1962409 3307 2640 17 650 +375.2 ± 13.35
ncm-et-13 08:23:36 1961716 3339 2663 20 656 +373.69 ± 13.29
ncm-et-15 08:22:53 1972124 3351 2675 16 660 +375.51 ± 13.24
20000 15874 103 4023 +370.92 ± 5.36

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
140001 ncm-et-10 2020-10-23 07:50 00:46:31 1966922 307 235 1 71 +347.95 ± 40.69 ↓
140000 ncm-et-3 2020-10-23 07:48 00:47:34 1965996 317 254 1 62 +379.88 ± 43.77 ↓
139999 ncm-et-9 2020-10-23 07:46 00:50:28 1968469 332 260 3 69 +358.02 ± 41.51 ↓
139998 ncm-et-13 2020-10-23 07:45 00:51:42 1962302 339 266 3 70 +359.51 ± 41.2 ↓
139997 ncm-et-15 2020-10-23 07:44 00:52:27 1970636 351 285 1 65 +390.68 ± 42.75 ↓
139996 ncm-et-4 2020-10-23 07:43 00:53:18 1970171 354 284 1 69 +381.15 ± 41.42 ↓
139995 ncm-et-3 2020-10-23 06:31 01:16:17 1959852 500 405 2 93 +387.57 ± 35.6 ↓
139994 ncm-et-10 2020-10-23 06:31 01:17:30 1958929 500 390 3 107 +357.94 ± 33.12 ↓
139993 ncm-et-13 2020-10-23 06:29 01:14:14 1964764 500 398 0 102 +377.87 ± 33.8 ↓
139992 ncm-et-9 2020-10-23 06:27 01:17:04 1971890 500 385 1 114 +352.8 ± 31.94 ↓
139991 ncm-et-4 2020-10-23 06:27 01:14:53 1971429 500 383 4 113 +344.48 ± 32.22 ↓
139990 ncm-et-15 2020-10-23 06:27 01:15:53 1968626 500 398 2 100 +374.11 ± 34.27 ↓
139989 ncm-et-3 2020-10-23 05:15 01:15:00 1962918 500 383 6 111 +341.24 ± 32.56 ↓
139988 ncm-et-10 2020-10-23 05:13 01:17:17 1956946 500 412 3 85 +399.81 ± 37.34 ↓
139987 ncm-et-15 2020-10-23 05:12 01:13:36 1974047 500 398 5 97 +368.59 ± 34.9 ↓
139986 ncm-et-13 2020-10-23 05:12 01:16:02 1961539 500 413 6 81 +395.65 ± 38.26 ↓
139985 ncm-et-9 2020-10-23 05:12 01:14:27 1970176 500 396 1 103 +372.25 ± 33.69 ↓
139984 ncm-et-4 2020-10-23 05:11 01:15:05 1966626 500 399 1 100 +377.87 ± 34.22 ↓
139983 ncm-et-3 2020-10-23 03:58 01:15:33 1962306 500 395 7 98 +359.68 ± 34.71 ↓
139982 ncm-et-15 2020-10-23 03:58 01:13:35 1973582 500 400 3 97 +375.98 ± 34.86 ↓
139981 ncm-et-10 2020-10-23 03:57 01:14:44 1961555 500 397 3 100 +370.41 ± 34.31 ↓
139980 ncm-et-4 2020-10-23 03:56 01:13:50 1970027 500 396 2 102 +370.41 ± 33.92 ↓
139979 ncm-et-13 2020-10-23 03:56 01:15:29 1959240 500 387 1 112 +356.21 ± 32.24 ↓
139978 ncm-et-9 2020-10-23 03:55 01:15:36 1972188 500 390 4 106 +356.21 ± 33.31 ↓
139977 ncm-et-3 2020-10-23 02:41 01:15:48 1960010 500 405 2 93 +387.57 ± 35.6 ↓
139976 ncm-et-10 2020-10-23 02:41 01:14:36 1967730 500 393 2 105 +364.98 ± 33.41 ↓
139975 ncm-et-15 2020-10-23 02:40 01:16:36 1973911 500 396 2 102 +370.41 ± 33.92 ↓
139974 ncm-et-4 2020-10-23 02:40 01:15:17 1965380 500 402 1 97 +383.64 ± 34.77 ↓
139973 ncm-et-9 2020-10-23 02:39 01:14:49 1970791 500 388 4 108 +352.8 ± 32.99 ↓
139972 ncm-et-13 2020-10-23 02:38 01:16:04 1963532 500 388 2 110 +356.21 ± 32.6 ↓
139971 ncm-et-3 2020-10-23 01:26 01:14:44 1963839 500 402 3 95 +379.78 ± 35.24 ↓
139970 ncm-et-9 2020-10-23 01:24 01:14:36 1965381 500 389 2 109 +357.94 ± 32.76 ↓
139969 ncm-et-10 2020-10-23 01:23 01:16:47 1957708 500 405 2 93 +387.57 ± 35.6 ↓
139968 ncm-et-15 2020-10-23 01:23 01:15:37 1970944 500 401 1 98 +381.7 ± 34.59 ↓
139967 ncm-et-13 2020-10-23 01:23 01:14:41 1963688 500 405 6 89 +379.78 ± 36.47 ↓
139966 ncm-et-4 2020-10-23 01:23 01:15:53 1965846 500 399 1 100 +377.87 ± 34.22 ↓
139965 ncm-et-15 2020-10-23 00:07 01:15:09 1973123 500 397 2 101 +372.25 ± 34.1 ↓
139964 ncm-et-3 2020-10-23 00:07 01:17:37 1958168 500 396 2 102 +370.41 ± 33.92 ↓
139963 ncm-et-9 2020-10-23 00:07 01:15:54 1968935 500 397 0 103 +375.98 ± 33.63 ↓
139962 ncm-et-4 2020-10-23 00:07 01:14:43 1967562 500 388 2 110 +356.21 ± 32.6 ↓
139961 ncm-et-13 2020-10-23 00:06 01:15:24 1956953 500 406 2 92 +389.56 ± 35.8 ↓
139960 ncm-et-10 2020-10-23 00:06 01:16:00 1967077 500 408 3 89 +391.57 ± 36.46 ↓

Commit

Commit ID 2046d5da30b2cd505b69bddb40062b0d37b43bc7
Author syzygy1
Date 2020-10-22 18:50:16 UTC
More incremental accumulator updates This patch was inspired by c065abd which updates the accumulator, if possible, based on the accumulator of two plies back if the accumulator of the preceding ply is not available. With this patch we look back even further in the position history in an attempt to reduce the number of complete recomputations. When we find a usable accumulator for the position N plies back, we also update the accumulator of the position N-1 plies back because that accumulator is most likely to be helpful later when evaluating positions in sibling branches. By not updating all intermediate accumulators immediately, we avoid doing too much work that is not certain to be useful. Overall, roughly 2-3% speedup. This patch makes the code more specific to the net architecture, changing input features of the net will require additional changes to the incremental update code as discussed in the PR #3193 and #3191. Passed STC: https://tests.stockfishchess.org/tests/view/5f9056712c92c7fe3a8c60d0 LLR: 2.94 (-2.94,2.94) {-0.25,1.25} Total: 10040 W: 1116 L: 968 D: 7956 Ptnml(0-2): 42, 722, 3365, 828, 63 closes https://github.com/official-stockfish/Stockfish/pull/3193 No functional change.
Copyright 2011–2025 Next Chess Move LLC
Feedback & Support Terms of Service Privacy Policy Desktop Version