Dev Builds » 20210406-1623

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 08:21:09 1960130 3312 2689 16 607 +388.63 +/- 13.82
ncm-et-4 08:21:29 1963078 3346 2677 12 657 +378.32 +/- 13.27
ncm-et-9 08:21:23 1963272 3347 2672 9 666 +377.53 +/- 13.16
ncm-et-10 08:21:27 1954085 3307 2653 15 639 +379.49 +/- 13.46
ncm-et-13 08:21:23 1963521 3368 2685 22 661 +372.88 +/- 13.25
ncm-et-15 08:21:42 1958895 3320 2649 15 656 +375.39 +/- 13.28
20000 16025 89 3886 +378.63 +/- 5.45

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
145806 ncm-et-3 2021-04-07 00:34 00:47:22 1949309 312 254 1 57 +392.48 +/- 45.77
145805 ncm-et-10 2021-04-07 00:33 00:47:59 1954051 307 240 0 67 +364.76 +/- 41.85
145804 ncm-et-15 2021-04-07 00:33 00:48:15 1960770 320 259 0 61 +390.93 +/- 44.04
145803 ncm-et-4 2021-04-07 00:30 00:51:32 1973908 346 272 3 71 +360.95 +/- 40.9
145802 ncm-et-9 2021-04-07 00:29 00:52:10 1976713 347 278 1 68 +380.03 +/- 41.73
145801 ncm-et-13 2021-04-07 00:27 00:54:02 1968632 368 291 0 77 +372.95 +/- 39.0
145800 ncm-et-3 2021-04-06 23:17 01:15:46 1962936 500 403 1 96 +385.59 +/- 34.96
145799 ncm-et-10 2021-04-06 23:17 01:15:41 1950091 500 398 1 101 +375.98 +/- 34.04
145798 ncm-et-15 2021-04-06 23:16 01:16:29 1949493 500 398 1 101 +375.98 +/- 34.04
145797 ncm-et-4 2021-04-06 23:15 01:13:36 1962149 500 393 4 103 +361.43 +/- 33.81
145796 ncm-et-9 2021-04-06 23:13 01:15:04 1970061 500 397 2 101 +372.25 +/- 34.1
145795 ncm-et-13 2021-04-06 23:12 01:14:11 1963855 500 394 0 106 +370.41 +/- 33.12
145794 ncm-et-10 2021-04-06 22:00 01:16:00 1956656 500 400 3 97 +375.98 +/- 34.86
145793 ncm-et-4 2021-04-06 22:00 01:14:40 1973428 500 399 1 100 +377.87 +/- 34.22
145792 ncm-et-3 2021-04-06 22:00 01:16:42 1954827 500 410 2 88 +397.72 +/- 36.65
145791 ncm-et-15 2021-04-06 22:00 01:15:24 1956643 500 398 2 100 +374.11 +/- 34.27
145790 ncm-et-9 2021-04-06 21:58 01:14:07 1963539 500 402 1 97 +383.64 +/- 34.77
145789 ncm-et-13 2021-04-06 21:58 01:13:53 1962469 500 397 5 98 +366.78 +/- 34.71
145788 ncm-et-3 2021-04-06 20:45 01:13:52 1962766 500 394 3 103 +364.98 +/- 33.79
145787 ncm-et-4 2021-04-06 20:43 01:16:10 1941733 500 416 2 82 +410.58 +/- 38.02
145786 ncm-et-9 2021-04-06 20:43 01:15:00 1958095 500 402 3 95 +379.78 +/- 35.24
145785 ncm-et-13 2021-04-06 20:43 01:14:18 1963238 500 395 3 102 +366.78 +/- 33.96
145784 ncm-et-15 2021-04-06 20:43 01:16:33 1953281 500 387 1 112 +356.21 +/- 32.24
145783 ncm-et-10 2021-04-06 20:42 01:17:02 1950551 500 414 4 82 +401.92 +/- 38.05
145782 ncm-et-3 2021-04-06 19:30 01:14:23 1972039 500 406 4 90 +385.59 +/- 36.27
145781 ncm-et-4 2021-04-06 19:27 01:15:10 1967696 500 390 2 108 +359.68 +/- 32.92
145780 ncm-et-15 2021-04-06 19:27 01:15:34 1955268 500 411 5 84 +393.6 +/- 37.58
145779 ncm-et-13 2021-04-06 19:26 01:15:54 1964764 500 405 8 87 +375.98 +/- 36.84
145778 ncm-et-10 2021-04-06 19:26 01:15:51 1956028 500 407 1 92 +393.6 +/- 35.75
145777 ncm-et-9 2021-04-06 19:26 01:16:33 1955568 500 398 1 101 +375.98 +/- 34.04
145776 ncm-et-4 2021-04-06 18:13 01:14:06 1963687 500 401 0 99 +383.63 +/- 34.34
145775 ncm-et-3 2021-04-06 18:12 01:17:43 1950569 500 409 1 90 +397.72 +/- 36.17
145774 ncm-et-9 2021-04-06 18:12 01:13:23 1968314 500 392 1 107 +364.98 +/- 33.02
145773 ncm-et-15 2021-04-06 18:11 01:15:04 1972964 500 396 3 101 +368.59 +/- 34.13
145772 ncm-et-13 2021-04-06 18:10 01:15:05 1960768 500 405 3 92 +385.59 +/- 35.84
145771 ncm-et-10 2021-04-06 18:10 01:15:26 1951197 500 400 3 97 +375.98 +/- 34.86
145770 ncm-et-3 2021-04-06 16:56 01:15:21 1968467 500 413 4 83 +399.81 +/- 37.82
145769 ncm-et-9 2021-04-06 16:56 01:15:06 1950616 500 403 0 97 +387.56 +/- 34.71
145768 ncm-et-4 2021-04-06 16:56 01:16:15 1958951 500 406 0 94 +393.6 +/- 35.29
145767 ncm-et-13 2021-04-06 16:56 01:14:00 1960926 500 398 3 99 +372.25 +/- 34.49
145766 ncm-et-10 2021-04-06 16:56 01:13:28 1960026 500 394 3 103 +364.98 +/- 33.79
145765 ncm-et-15 2021-04-06 16:56 01:14:23 1963847 500 400 3 97 +375.98 +/- 34.86

Commit

Commit ID 3dfda1b28e14d1f3c2422fed5f203e305f58af28
Author Vizvezdenec
Date 2021-04-06 16:23:35 UTC
Replace distanceFromPv with a better logic This patch removes the recently introduced distanceFromPv logic, and replaces it with following logic: if reduction of moves with low movecount is really negative, we search them deeper than the first move. passed STC: LLR: 2.95 (-2.94,2.94) {-0.20,1.10} Total: 153008 W: 13913 L: 13579 D: 125516 Ptnml(0-2): 547, 10811, 53470, 11113, 563 https://tests.stockfishchess.org/tests/view/6069c9d02b2df919fd5f04d2 passed LTC: LLR: 2.94 (-2.94,2.94) {0.20,0.90} Total: 101920 W: 3964 L: 3699 D: 94257 Ptnml(0-2): 55, 3279, 44019, 3560, 47 https://tests.stockfishchess.org/tests/view/606a99fd2b2df919fd5f0532 Closes https://github.com/official-stockfish/Stockfish/pull/3421 Bench: 4191632
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