Dev Builds » 20210831-1056

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 08:16:51 1960713 3342 2821 3 518 +428.1 +/- 14.95
ncm-et-4 08:16:52 1958208 3305 2866 6 433 +456.63 +/- 16.39
ncm-et-9 08:16:48 1962732 3348 2857 6 485 +438.39 +/- 15.47
ncm-et-10 08:16:55 1953257 3310 2818 1 491 +437.76 +/- 15.35
ncm-et-13 08:16:49 1963750 3345 2868 8 469 +442.8 +/- 15.74
ncm-et-15 08:16:49 1961627 3350 2879 3 468 +447.37 +/- 15.74
20000 17109 27 2864 +441.63 +/- 6.35

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
151316 ncm-et-4 2021-08-31 19:03 00:46:13 1948782 305 261 0 44 +443.74 +/- 52.41
151315 ncm-et-10 2021-08-31 19:03 00:47:01 1952369 310 270 0 40 +464.54 +/- 55.18
151314 ncm-et-15 2021-08-31 18:59 00:50:52 1962506 350 303 1 46 +453.2 +/- 51.36
151313 ncm-et-3 2021-08-31 18:58 00:51:22 1960340 342 293 1 48 +441.25 +/- 50.2
151312 ncm-et-13 2021-08-31 18:57 00:52:04 1963390 345 303 1 41 +470.97 +/- 54.61
151311 ncm-et-9 2021-08-31 18:57 00:52:33 1957709 348 302 1 45 +456.06 +/- 51.96
151310 ncm-et-4 2021-08-31 17:47 01:15:28 1954439 500 445 0 55 +494.02 +/- 46.77
151309 ncm-et-10 2021-08-31 17:47 01:15:03 1955125 500 417 0 83 +417.31 +/- 37.67
151308 ncm-et-15 2021-08-31 17:45 01:13:18 1962613 500 418 0 82 +419.61 +/- 37.91
151307 ncm-et-13 2021-08-31 17:43 01:13:27 1964917 500 420 2 78 +419.61 +/- 39.03
151306 ncm-et-3 2021-08-31 17:43 01:14:39 1960622 500 420 0 80 +424.27 +/- 38.4
151305 ncm-et-9 2021-08-31 17:42 01:13:56 1959543 500 418 1 81 +417.32 +/- 38.22
151304 ncm-et-4 2021-08-31 16:30 01:16:09 1956025 500 433 0 67 +457.52 +/- 42.15
151303 ncm-et-10 2021-08-31 16:30 01:15:50 1951458 500 436 0 64 +466.03 +/- 43.18
151302 ncm-et-15 2021-08-31 16:30 01:14:21 1957150 500 438 1 61 +468.96 +/- 44.35
151301 ncm-et-9 2021-08-31 16:28 01:13:21 1962922 500 433 0 67 +457.52 +/- 42.15
151300 ncm-et-3 2021-08-31 16:28 01:14:17 1961870 500 424 0 76 +433.94 +/- 39.45
151299 ncm-et-13 2021-08-31 16:28 01:15:02 1960780 500 422 1 77 +426.65 +/- 39.25
151298 ncm-et-10 2021-08-31 15:16 01:13:29 1960324 500 420 0 80 +424.27 +/- 38.4
151297 ncm-et-15 2021-08-31 15:15 01:14:01 1965688 500 422 0 78 +429.05 +/- 38.92
151296 ncm-et-4 2021-08-31 15:15 01:15:07 1958471 500 433 2 65 +452.04 +/- 42.92
151295 ncm-et-3 2021-08-31 15:14 01:13:31 1966794 500 430 0 70 +449.35 +/- 41.19
151294 ncm-et-9 2021-08-31 15:13 01:14:53 1964302 500 434 0 66 +460.32 +/- 42.48
151293 ncm-et-13 2021-08-31 15:13 01:14:17 1966340 500 433 0 67 +457.52 +/- 42.15
151292 ncm-et-10 2021-08-31 14:00 01:15:24 1946304 500 430 1 69 +446.7 +/- 41.57
151291 ncm-et-13 2021-08-31 13:59 01:12:47 1965102 500 433 0 67 +457.52 +/- 42.15
151290 ncm-et-4 2021-08-31 13:58 01:15:33 1964764 500 424 3 73 +426.65 +/- 40.41
151289 ncm-et-3 2021-08-31 13:58 01:14:48 1961251 500 425 1 74 +433.94 +/- 40.08
151288 ncm-et-15 2021-08-31 13:58 01:16:05 1955426 500 428 0 72 +444.08 +/- 40.59
151287 ncm-et-9 2021-08-31 13:58 01:14:13 1966164 500 427 0 73 +441.5 +/- 40.29
151286 ncm-et-10 2021-08-31 12:44 01:15:25 1947669 500 426 0 74 +438.95 +/- 40.01
151285 ncm-et-4 2021-08-31 12:44 01:14:11 1969253 500 438 1 61 +468.96 +/- 44.35
151284 ncm-et-13 2021-08-31 12:43 01:15:18 1957567 500 433 2 65 +452.04 +/- 42.92
151283 ncm-et-9 2021-08-31 12:43 01:14:20 1966923 500 426 1 73 +436.43 +/- 40.36
151282 ncm-et-3 2021-08-31 12:43 01:14:41 1952884 500 406 1 93 +391.57 +/- 35.55
151281 ncm-et-15 2021-08-31 12:43 01:14:56 1960159 500 435 0 65 +463.15 +/- 42.83
151280 ncm-et-9 2021-08-31 11:29 01:13:32 1961562 500 417 3 80 +410.58 +/- 38.54
151279 ncm-et-15 2021-08-31 11:29 01:13:16 1967851 500 435 1 64 +460.32 +/- 43.24
151278 ncm-et-4 2021-08-31 11:29 01:14:11 1955725 500 432 0 68 +454.76 +/- 41.82
151277 ncm-et-10 2021-08-31 11:29 01:14:43 1959550 500 419 0 81 +421.93 +/- 38.15
151276 ncm-et-3 2021-08-31 11:29 01:13:33 1961232 500 423 0 77 +431.48 +/- 39.18
151275 ncm-et-13 2021-08-31 11:29 01:13:54 1968157 500 424 2 74 +429.05 +/- 40.11

Commit

Commit ID 2807dcfab671bfc7a1bea79f5639dbbd505703ad
Author SFisGOD
Date 2021-08-31 10:56:19 UTC
Update default net to nn-735bba95dec0.nnue SPSA 1: https://tests.stockfishchess.org/tests/view/61286d8b62d20cf82b5ad1bd Parameters: A total of 256 net biases were tuned (hidden layer 2) Base net: nn-33495fe25081.nnue New net: nn-83e3cf2af92b.nnue SPSA 2: https://tests.stockfishchess.org/tests/view/6129cf2162d20cf82b5ad25f Parameters: A total of 64 net biases were tuned (hidden layer 1) Base net: nn-83e3cf2af92b.nnue New net: nn-69a528eaef35.nnue SPSA 3: https://tests.stockfishchess.org/tests/view/612a0dcb62d20cf82b5ad2a0 Parameters: 256 net weights and 8 net biases (output layer) Base net: nn-69a528eaef35.nnue New net: nn-735bba95dec0.nnue STC: LLR: 2.94 (-2.94,2.94) <-0.50,2.50> Total: 95144 W: 24310 L: 23999 D: 46835 Ptnml(0-2): 232, 11059, 24748, 11232, 301 https://tests.stockfishchess.org/tests/view/612bb3be0fdf40644b4b9996 LTC: LLR: 2.94 (-2.94,2.94) <0.50,3.50> Total: 33632 W: 8522 L: 8271 D: 16839 Ptnml(0-2): 18, 3511, 9516, 3744, 27 https://tests.stockfishchess.org/tests/view/612ce5b9bb4956d8b78eb5b3 Closes https://github.com/official-stockfish/Stockfish/pull/3685 Bench: 5600615
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