Dev Builds » 20210906-1208

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 08:15:17 1963461 3352 2833 4 515 +429.02 +/- 15.0
ncm-et-4 08:15:27 1959845 3333 2841 5 487 +437.54 +/- 15.43
ncm-et-9 08:15:26 1963041 3324 2808 4 512 +428.53 +/- 15.04
ncm-et-10 08:15:35 1958869 3337 2845 7 485 +437.01 +/- 15.47
ncm-et-13 08:15:22 1957877 3339 2861 9 469 +441.69 +/- 15.74
ncm-et-15 08:15:22 1959485 3315 2823 5 487 +436.53 +/- 15.43
20000 17011 34 2955 +435.0 +/- 6.26

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
151358 ncm-et-15 2021-09-06 20:04 00:46:27 1961535 315 266 1 48 +425.78 +/- 50.16
151357 ncm-et-9 2021-09-06 20:01 00:49:21 1956183 324 272 0 52 +423.69 +/- 47.97
151356 ncm-et-4 2021-09-06 20:01 00:49:32 1965546 333 282 0 51 +432.52 +/- 48.48
151355 ncm-et-13 2021-09-06 20:00 00:50:16 1963239 339 288 0 51 +435.87 +/- 48.49
151354 ncm-et-10 2021-09-06 20:00 00:51:03 1956943 337 288 2 47 +434.77 +/- 50.78
151353 ncm-et-3 2021-09-06 19:58 00:52:50 1958960 352 300 0 52 +439.29 +/- 48.02
151352 ncm-et-15 2021-09-06 18:49 01:14:21 1962794 500 418 0 82 +419.61 +/- 37.91
151351 ncm-et-4 2021-09-06 18:47 01:13:15 1963381 500 421 1 78 +424.28 +/- 38.99
151350 ncm-et-9 2021-09-06 18:46 01:14:44 1959397 500 433 1 66 +454.76 +/- 42.55
151349 ncm-et-13 2021-09-06 18:45 01:14:28 1947579 500 436 0 64 +466.03 +/- 43.18
151348 ncm-et-10 2021-09-06 18:44 01:14:39 1952066 500 428 1 71 +441.5 +/- 40.95
151347 ncm-et-3 2021-09-06 18:43 01:13:59 1965539 500 422 0 78 +429.05 +/- 38.92
151346 ncm-et-15 2021-09-06 17:35 01:13:49 1960462 500 426 1 73 +436.43 +/- 40.36
151345 ncm-et-4 2021-09-06 17:33 01:13:53 1959408 500 426 0 74 +438.95 +/- 40.01
151344 ncm-et-10 2021-09-06 17:31 01:12:49 1963536 500 432 0 68 +454.76 +/- 41.82
151343 ncm-et-9 2021-09-06 17:30 01:15:12 1968159 500 427 2 71 +436.43 +/- 40.99
151342 ncm-et-13 2021-09-06 17:29 01:15:06 1951208 500 416 2 82 +410.58 +/- 38.02
151341 ncm-et-3 2021-09-06 17:27 01:15:00 1957263 500 412 1 87 +404.05 +/- 36.82
151340 ncm-et-15 2021-09-06 16:20 01:14:15 1962764 500 419 1 80 +419.61 +/- 38.47
151339 ncm-et-4 2021-09-06 16:17 01:15:23 1955582 500 434 1 65 +457.52 +/- 42.89
151338 ncm-et-9 2021-09-06 16:16 01:13:31 1961843 500 417 1 82 +415.05 +/- 37.98
151337 ncm-et-10 2021-09-06 16:16 01:14:45 1947169 500 430 2 68 +444.09 +/- 41.92
151336 ncm-et-13 2021-09-06 16:14 01:14:31 1954252 500 425 0 75 +436.43 +/- 39.73
151335 ncm-et-3 2021-09-06 16:13 01:13:44 1967232 500 424 0 76 +433.94 +/- 39.45
151334 ncm-et-15 2021-09-06 15:03 01:16:08 1955787 500 429 0 71 +446.7 +/- 40.89
151333 ncm-et-10 2021-09-06 15:01 01:13:30 1969725 500 421 1 78 +424.28 +/- 38.99
151332 ncm-et-9 2021-09-06 15:01 01:14:07 1965535 500 411 0 89 +404.05 +/- 36.31
151331 ncm-et-4 2021-09-06 15:00 01:15:41 1958165 500 422 0 78 +429.05 +/- 38.92
151330 ncm-et-13 2021-09-06 15:00 01:13:26 1961389 500 441 2 57 +474.93 +/- 45.97
151329 ncm-et-3 2021-09-06 14:59 01:13:25 1966309 500 429 2 69 +441.5 +/- 41.61
151328 ncm-et-10 2021-09-06 13:47 01:13:57 1966622 500 419 0 81 +421.93 +/- 38.15
151327 ncm-et-4 2021-09-06 13:47 01:12:49 1962489 500 428 2 70 +438.95 +/- 41.29
151326 ncm-et-15 2021-09-06 13:47 01:15:39 1953211 500 432 0 68 +454.76 +/- 41.82
151325 ncm-et-9 2021-09-06 13:46 01:14:13 1960158 500 429 0 71 +446.7 +/- 40.89
151324 ncm-et-3 2021-09-06 13:46 01:12:11 1966164 500 428 1 71 +441.5 +/- 40.95
151323 ncm-et-13 2021-09-06 13:46 01:13:31 1972649 500 426 3 71 +431.48 +/- 41.0
151322 ncm-et-9 2021-09-06 12:31 01:14:18 1970014 500 419 0 81 +421.93 +/- 38.15
151321 ncm-et-3 2021-09-06 12:31 01:14:08 1962764 500 418 0 82 +419.61 +/- 37.91
151320 ncm-et-10 2021-09-06 12:31 01:14:52 1956025 500 427 1 72 +438.95 +/- 40.66
151319 ncm-et-15 2021-09-06 12:31 01:14:43 1959848 500 433 2 65 +452.04 +/- 42.92
151318 ncm-et-4 2021-09-06 12:31 01:14:54 1954350 500 428 1 71 +441.5 +/- 40.95
151317 ncm-et-13 2021-09-06 12:31 01:14:04 1954827 500 429 2 69 +441.5 +/- 41.61

Commit

Commit ID be63ce1bb59d24cce3346be0e41923204ffcca13
Author SFisGOD
Date 2021-09-06 12:08:22 UTC
Update default net to nn-6762d36ad265.nnue SPSA 1: https://tests.stockfishchess.org/tests/view/612cdb1fbb4956d8b78eb5ab Parameters: A total of 256 net biases were tuned (hidden layer 2) Base net: nn-fe433fd8c7f6.nnue New net: nn-5f134823db04.nnue SPSA 2: https://tests.stockfishchess.org/tests/view/612fcde645091e810014af19 Parameters: A total of 64 net biases were tuned (hidden layer 1) Base net: nn-5f134823db04.nnue New net: nn-8eca5dd4e3f7.nnue SPSA 3: https://tests.stockfishchess.org/tests/view/6130822345091e810014af61 Parameters: 256 net weights and 8 net biases (output layer) Base net: nn-8eca5dd4e3f7.nnue New net: nn-4556108e4f00.nnue SPSA 4: https://tests.stockfishchess.org/tests/view/613287652ffb3c36aceb923c Parameters: A total of 256 net biases were tuned (hidden layer 2) Base net: nn-4556108e4f00.nnue New net: nn-6762d36ad265.nnue STC: LLR: 2.96 (-2.94,2.94) <-0.50,2.50> Total: 162776 W: 41220 L: 40807 D: 80749 Ptnml(0-2): 517, 18800, 42359, 19177, 535 https://tests.stockfishchess.org/tests/view/6134107125b9b35584838559 LTC: LLR: 2.95 (-2.94,2.94) <0.50,3.50> Total: 41056 W: 10428 L: 10156 D: 20472 Ptnml(0-2): 30, 4288, 11618, 4564, 28 https://tests.stockfishchess.org/tests/view/6134ad6525b9b3558483857a closes https://github.com/official-stockfish/Stockfish/pull/3691 Bench: 5812158
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