Dev Builds » 20200808-0631

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 08:37:14 1963576 3303 2248 60 995 +276.95 +/- 10.77
ncm-et-4 08:36:55 1961143 3322 2290 50 982 +284.4 +/- 10.83
ncm-et-9 08:37:29 1969479 3375 2353 56 966 +288.45 +/- 10.94
ncm-et-10 08:37:20 1959851 3335 2320 62 953 +286.17 +/- 11.02
ncm-et-13 08:37:21 1962611 3334 2273 66 995 +276.67 +/- 10.78
ncm-et-15 08:37:11 1968966 3331 2303 51 977 +285.54 +/- 10.87
20000 13787 345 5868 +283.01 +/- 4.43

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
138321 ncm-et-3 2020-09-14 01:16 00:48:03 1964610 303 209 8 86 +277.53 +/- 37.03
138320 ncm-et-4 2020-09-14 01:14 00:49:52 1967696 322 220 1 101 +288.14 +/- 33.65
138319 ncm-et-15 2020-09-14 01:13 00:50:37 1971888 331 239 4 88 +308.22 +/- 36.54
138318 ncm-et-13 2020-09-14 01:13 00:51:16 1963228 334 233 9 92 +282.1 +/- 35.79
138317 ncm-et-10 2020-09-14 01:12 00:52:10 1962479 335 228 7 100 +275.27 +/- 34.25
138316 ncm-et-9 2020-09-14 01:06 00:58:33 1973744 375 267 5 103 +300.42 +/- 33.72
138315 ncm-et-3 2020-09-13 23:58 01:16:50 1963379 500 342 9 149 +279.17 +/- 27.96
138314 ncm-et-4 2020-09-13 23:56 01:17:22 1968482 500 335 8 157 +271.78 +/- 27.17
138313 ncm-et-15 2020-09-13 23:55 01:17:01 1966772 500 338 7 155 +276.69 +/- 27.33
138312 ncm-et-13 2020-09-13 23:54 01:18:12 1961844 500 335 7 158 +273.0 +/- 27.05
138311 ncm-et-10 2020-09-13 23:53 01:17:32 1960785 500 363 6 131 +311.06 +/- 29.86
138310 ncm-et-9 2020-09-13 23:47 01:17:04 1966474 500 358 9 133 +299.97 +/- 29.68
138309 ncm-et-3 2020-09-13 22:39 01:18:13 1962610 500 356 10 134 +295.94 +/- 29.57
138308 ncm-et-4 2020-09-13 22:36 01:18:06 1966152 500 349 6 145 +291.97 +/- 28.3
138307 ncm-et-15 2020-09-13 22:35 01:18:45 1963535 500 345 15 140 +275.45 +/- 28.93
138306 ncm-et-13 2020-09-13 22:35 01:17:55 1961535 500 334 14 152 +263.42 +/- 27.74
138305 ncm-et-10 2020-09-13 22:34 01:17:55 1962188 500 337 9 154 +273.0 +/- 27.48
138304 ncm-et-9 2020-09-13 22:29 01:17:13 1967253 500 346 6 148 +288.06 +/- 27.99
138303 ncm-et-3 2020-09-13 21:18 01:19:26 1964455 500 325 7 168 +261.07 +/- 26.16
138302 ncm-et-4 2020-09-13 21:17 01:17:56 1974986 500 354 9 137 +294.61 +/- 29.22
138301 ncm-et-15 2020-09-13 21:16 01:18:43 1966768 500 348 4 148 +293.29 +/- 27.92
138300 ncm-et-13 2020-09-13 21:15 01:18:06 1961843 500 360 3 137 +311.06 +/- 29.06
138299 ncm-et-10 2020-09-13 21:15 01:18:29 1954655 500 339 10 151 +274.22 +/- 27.78
138298 ncm-et-9 2020-09-13 21:12 01:16:21 1965083 500 330 14 156 +258.75 +/- 27.36
138297 ncm-et-3 2020-09-13 20:01 01:16:25 1964147 500 329 9 162 +263.42 +/- 26.74
138296 ncm-et-13 2020-09-13 19:59 01:15:24 1964456 500 335 11 154 +268.17 +/- 27.51
138295 ncm-et-15 2020-09-13 19:57 01:17:10 1971413 500 353 7 140 +295.94 +/- 28.86
138294 ncm-et-4 2020-09-13 19:57 01:19:18 1914332 500 350 8 142 +290.66 +/- 28.66
138293 ncm-et-10 2020-09-13 19:56 01:17:23 1961095 500 351 11 138 +288.06 +/- 29.14
138292 ncm-et-9 2020-09-13 19:55 01:15:50 1974981 500 344 7 149 +284.22 +/- 27.92
138291 ncm-et-3 2020-09-13 18:40 01:19:42 1963840 500 347 10 143 +284.22 +/- 28.59
138290 ncm-et-13 2020-09-13 18:40 01:18:25 1963224 500 339 13 148 +270.57 +/- 28.11
138289 ncm-et-15 2020-09-13 18:39 01:16:54 1970357 500 341 6 153 +281.68 +/- 27.49
138288 ncm-et-4 2020-09-13 18:39 01:17:00 1972197 500 341 5 154 +282.94 +/- 27.36
138287 ncm-et-10 2020-09-13 18:39 01:16:46 1952978 500 351 11 138 +288.06 +/- 29.14
138286 ncm-et-9 2020-09-13 18:37 01:16:46 1970032 500 359 5 136 +306.84 +/- 29.25
138285 ncm-et-4 2020-09-13 17:21 01:17:21 1964161 500 341 13 146 +273.0 +/- 28.31
138284 ncm-et-3 2020-09-13 17:20 01:18:35 1961995 500 340 7 153 +279.17 +/- 27.52
138283 ncm-et-10 2020-09-13 17:20 01:17:05 1964778 500 351 8 141 +291.97 +/- 28.77
138282 ncm-et-13 2020-09-13 17:20 01:18:03 1962148 500 337 9 154 +273.0 +/- 27.48
138281 ncm-et-9 2020-09-13 17:20 01:15:42 1968788 500 349 10 141 +286.77 +/- 28.8
138280 ncm-et-15 2020-09-13 17:20 01:18:01 1972035 500 339 8 153 +276.69 +/- 27.55

Commit

Commit ID 5ccff25df2e8fcbee3d4c1428bbc101afa88e700
Author Lolligerhans
Date 2020-08-08 06:31:06 UTC
Expand outposts to minors shielded by pawns Allow any pawn in front of a minor piece to replace the pawn protection requirement for outposts. +-------+ +-------+ | . . o | | o . . | o Their pawns | . o x | | o . . | x Our pawns | o N . | | x o B | N,B New (reachable) outpost | . . . | | . _ . | _ Reachable square behind a pawn +-------+ +-------+ N outpost B reaches outpost We want outposts to be secured by pawns against major pieces. If a minor is shielded by any pawn from above, it is rarely at the same time protected by our pawn attacks from below. However, the pawn shield in itself offers some degree of protection. A pawn shield will now suffice to replace the pawn protection for the outpost (and reachable outpost) bonus. This effect stacks with the existing "minor behind pawn" bonus. STC https://tests.stockfishchess.org/tests/view/5f2bcd14b3ebe5cbfee85b2c LLR: 2.94 (-2.94,2.94) {-0.50,1.50} Total: 27248 W: 5353 L: 5119 D: 16776 Ptnml(0-2): 462, 3174, 6185, 3274, 529 LTC https://tests.stockfishchess.org/tests/view/5f2bfef5b3ebe5cbfee85b5a LLR: 2.96 (-2.94,2.94) {0.25,1.75} Total: 99432 W: 12580 L: 12130 D: 74722 Ptnml(0-2): 696, 8903, 30049, 9391, 677 Closes #2935 Bench: 4143673
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