Dev Builds » 20170408-0015

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 06:00:00 1990581 2439 745 126 1568 +90.15 +/- 7.98
ncm-et-4 06:03:14 1984267 2439 750 92 1597 +96.11 +/- 7.76
ncm-et-5 01:53:18 2023691 780 277 42 461 +108.03 +/- 15.14
ncm-et-6 01:53:12 2026390 763 259 29 475 +108.09 +/- 14.53
ncm-et-7 01:53:13 1977474 771 251 32 488 +101.48 +/- 14.29
ncm-et-8 01:53:13 1994664 770 235 42 493 +88.98 +/- 14.28
ncm-et-9 06:03:44 1990112 2440 785 117 1538 +97.61 +/- 8.09
ncm-et-10 06:02:32 1987553 2441 752 105 1584 +94.34 +/- 7.86
ncm-et-11 01:52:54 2015010 757 240 38 479 +95.01 +/- 14.51
ncm-et-12 01:53:11 2006156 758 263 28 467 +111.38 +/- 14.69
ncm-et-13 06:00:45 1993427 2427 792 112 1523 +100.02 +/- 8.13
ncm-et-14 01:53:15 2020593 781 245 34 502 +96.25 +/- 14.02
ncm-et-15 06:02:17 1982224 2434 778 119 1537 +96.47 +/- 8.09
20000 6372 916 12712 +97.24 +/- 2.8

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
61003 ncm-et-10 2018-12-01 23:58 00:24:54 1982613 169 54 9 106 +94.8 +/- 31.08
61002 ncm-et-3 2018-12-01 23:58 00:24:54 1978965 164 51 14 99 +79.76 +/- 33.04
61001 ncm-et-9 2018-12-01 23:58 00:25:16 1967710 168 61 12 95 +104.37 +/- 34.08
61000 ncm-et-4 2018-12-01 23:58 00:25:10 1987457 169 51 7 111 +92.59 +/- 29.57
60999 ncm-et-15 2018-12-01 23:58 00:25:21 1960987 169 55 14 100 +86.0 +/- 33.02
60998 ncm-et-13 2018-12-01 23:58 00:24:54 1978257 161 50 8 103 +92.78 +/- 31.23
60741 ncm-et-9 2018-11-29 18:04 01:13:23 1987516 500 164 34 302 +92.46 +/- 18.74
60740 ncm-et-4 2018-11-29 18:03 01:13:54 1963841 500 152 18 330 +95.44 +/- 17.01
60739 ncm-et-13 2018-11-29 18:02 01:12:57 1978880 500 154 19 327 +96.19 +/- 17.18
60738 ncm-et-3 2018-11-29 18:02 01:12:03 1979599 500 154 25 321 +91.71 +/- 17.63
60737 ncm-et-15 2018-11-29 18:02 01:14:37 1970944 500 162 23 315 +99.2 +/- 17.88
60736 ncm-et-10 2018-11-29 18:02 01:14:54 1959092 500 172 22 306 +107.54 +/- 18.29
60735 ncm-et-9 2018-11-29 16:48 01:15:01 1962619 500 163 27 310 +96.94 +/- 18.21
60734 ncm-et-4 2018-11-29 16:47 01:15:09 1967230 500 165 24 311 +100.71 +/- 18.1
60733 ncm-et-13 2018-11-29 16:46 01:14:50 1977483 500 180 21 299 +114.45 +/- 18.61
60732 ncm-et-3 2018-11-29 16:46 01:14:49 1962610 500 146 30 324 +82.1 +/- 17.59
60731 ncm-et-15 2018-11-29 16:45 01:15:32 1963409 500 168 23 309 +103.73 +/- 18.17
60730 ncm-et-10 2018-11-29 16:45 01:15:36 1966319 500 153 19 328 +95.44 +/- 17.13
60729 ncm-et-13 2018-11-29 15:30 01:15:02 1975289 500 151 23 326 +90.97 +/- 17.34
60728 ncm-et-9 2018-11-29 15:30 01:17:07 1970704 500 162 16 322 +104.49 +/- 17.34
60727 ncm-et-15 2018-11-29 15:30 01:13:57 1961544 500 141 27 332 +80.63 +/- 17.14
60726 ncm-et-4 2018-11-29 15:30 01:15:50 1958832 500 152 15 333 +97.69 +/- 16.77
60725 ncm-et-3 2018-11-29 15:30 01:15:01 1971169 500 162 20 318 +101.46 +/- 17.65
60724 ncm-et-10 2018-11-29 15:30 01:13:51 1975624 500 137 24 339 +79.9 +/- 16.72
9634 ncm-et-11 2018-03-18 15:57 00:39:03 2010487 257 86 12 159 +102.95 +/- 25.36
9633 ncm-et-8 2018-03-18 15:57 00:39:24 2011880 270 88 18 164 +92.18 +/- 25.4
9632 ncm-et-3 2018-03-18 15:57 00:39:22 2025245 275 94 16 165 +101.32 +/- 25.3
9631 ncm-et-12 2018-03-18 15:57 00:39:34 1992127 258 89 11 158 +108.43 +/- 25.45
9630 ncm-et-13 2018-03-18 15:57 00:39:33 2025573 266 85 10 171 +100.69 +/- 23.95
9629 ncm-et-9 2018-03-18 15:57 00:39:54 2025572 272 82 8 182 +96.96 +/- 22.64
9628 ncm-et-6 2018-03-18 15:57 00:39:51 2026226 263 93 10 160 +113.52 +/- 25.26
9627 ncm-et-10 2018-03-18 15:57 00:39:57 2020510 272 84 8 180 +99.73 +/- 22.88
9626 ncm-et-15 2018-03-18 15:57 00:39:42 2017907 265 96 12 157 +114.06 +/- 25.83
9625 ncm-et-7 2018-03-18 15:57 00:40:05 1983958 271 93 7 171 +114.2 +/- 23.87
9624 ncm-et-4 2018-03-18 15:57 00:40:00 2003001 270 89 10 171 +104.72 +/- 24.08
9623 ncm-et-14 2018-03-18 15:56 00:40:22 2021814 281 91 13 177 +99.04 +/- 23.87
9622 ncm-et-5 2018-03-18 15:56 00:40:24 2024100 280 94 10 176 +107.54 +/- 23.77
9621 ncm-et-9 2018-03-18 14:42 01:13:03 2026554 500 153 20 327 +94.7 +/- 17.21
9620 ncm-et-13 2018-03-18 14:42 01:13:29 2025081 500 172 31 297 +100.71 +/- 18.93
9619 ncm-et-15 2018-03-18 14:42 01:13:08 2018558 500 156 20 324 +96.94 +/- 17.36
9618 ncm-et-14 2018-03-18 14:42 01:12:53 2019372 500 154 21 325 +94.7 +/- 17.34
9617 ncm-et-11 2018-03-18 14:42 01:13:51 2019534 500 154 26 320 +90.97 +/- 17.7
9616 ncm-et-12 2018-03-18 14:42 01:13:37 2020185 500 174 17 309 +112.91 +/- 18.01
9615 ncm-et-8 2018-03-18 14:42 01:13:49 1977449 500 147 24 329 +87.26 +/- 17.21
9614 ncm-et-7 2018-03-18 14:42 01:13:08 1970991 500 158 25 317 +94.7 +/- 17.83
9613 ncm-et-3 2018-03-18 14:42 01:13:51 2025899 500 138 21 341 +82.83 +/- 16.54
9612 ncm-et-6 2018-03-18 14:42 01:13:21 2026554 500 166 19 315 +105.25 +/- 17.77
9611 ncm-et-10 2018-03-18 14:42 01:13:20 2021162 500 152 23 325 +91.71 +/- 17.39
9610 ncm-et-5 2018-03-18 14:42 01:12:54 2023283 500 183 32 285 +108.3 +/- 19.53
9609 ncm-et-4 2018-03-18 14:42 01:13:11 2025245 500 141 18 341 +87.26 +/- 16.46

Commit

Commit ID 72a501c6fe5e4e7b61291e9603d0c6cc0902e618
Author joergoster
Date 2017-04-08 00:15:00 UTC
Fix zugzwang pruning issues By adding pos.non_pawn_material(pos.side_to_move()) as a precondition in step 13, which is already in use in Futility Pruning (child node) and Null Move Pruning for similar reasons. Pawn endgames, especially those with only 1 or 2 pawns, are simply heavily influenced by zugzwang situations. Since we are using a bitbase for KPK endgames, I see no reason to accept buggy evals as shown in #760 Patch looks neutral at STC LLR: 2.32 (-2.94,2.94) [-3.00,1.00] Total: 79580 W: 10789 L: 10780 D: 58011 and LTC LLR: 2.95 (-2.94,2.94) [-3.00,1.00] Total: 27071 W: 3502 L: 3390 D: 20179 Bench: 6259071 Closes #1051 Closes #760
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