Dev Builds » 20180418-1549

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 06:02:16 2002084 2390 1081 63 1246 +158.06 +/- 9.28
ncm-et-4 06:02:16 2000787 2390 1138 78 1174 +165.59 +/- 9.69
ncm-et-5 01:47:36 1992606 700 335 24 341 +165.92 +/- 18.04
ncm-et-6 01:48:04 2024999 715 336 14 365 +168.55 +/- 17.13
ncm-et-7 01:47:56 1997356 714 329 18 367 +162.17 +/- 17.14
ncm-et-8 01:48:01 2023530 714 316 33 365 +145.69 +/- 17.43
ncm-et-9 06:02:24 2001883 2410 1123 79 1208 +161.15 +/- 9.53
ncm-et-10 06:02:18 1975988 2358 1085 88 1185 +156.73 +/- 9.64
ncm-et-11 01:47:49 2001578 703 341 16 346 +173.8 +/- 17.74
ncm-et-12 01:47:53 1988558 704 309 25 370 +148.6 +/- 17.13
ncm-et-13 06:01:39 1988095 2358 1118 72 1168 +165.62 +/- 9.69
ncm-et-14 01:47:57 2019617 719 335 27 357 +159.09 +/- 17.62
ncm-et-15 06:02:18 1994733 2404 1075 72 1257 +154.37 +/- 9.26
ncm-et-16 01:47:53 2017910 721 323 22 376 +154.48 +/- 16.96
20000 9244 631 10125 +160.06 +/- 3.28

Test Detail

ID Host Started (UTC) Duration Base NPS Games Wins Losses Draws Elo CLI PGN
51300 ncm-et-10 2018-08-26 10:40 00:21:42 1982635 139 66 2 71 +172.97 +/- 38.86
51299 ncm-et-13 2018-08-26 10:38 00:23:08 1916808 145 72 4 69 +176.76 +/- 40.28
51298 ncm-et-4 2018-08-26 10:34 00:27:01 1990665 179 86 2 91 +176.89 +/- 34.19
51297 ncm-et-3 2018-08-26 10:34 00:27:27 1990348 175 81 5 89 +161.62 +/- 35.1
51296 ncm-et-15 2018-08-26 10:34 00:27:39 1983264 180 84 7 89 +158.84 +/- 35.47
51295 ncm-et-9 2018-08-26 10:33 00:28:36 1987509 182 91 4 87 +180.81 +/- 35.65
51294 ncm-et-10 2018-08-26 09:23 01:15:10 1980285 500 229 22 249 +153.02 +/- 21.17
51293 ncm-et-13 2018-08-26 09:20 01:16:51 1987983 500 251 19 230 +174.55 +/- 22.16
51292 ncm-et-15 2018-08-26 09:18 01:15:07 1982008 500 224 22 254 +148.85 +/- 20.91
51291 ncm-et-4 2018-08-26 09:17 01:16:14 1989243 500 224 23 253 +148.02 +/- 20.98
51290 ncm-et-3 2018-08-26 09:17 01:16:20 1990980 500 234 10 256 +167.53 +/- 20.46
51289 ncm-et-9 2018-08-26 09:16 01:15:41 1988770 500 231 21 248 +155.54 +/- 21.2
51288 ncm-et-10 2018-08-26 08:04 01:18:18 1949894 500 226 20 254 +152.18 +/- 20.86
51287 ncm-et-13 2018-08-26 08:02 01:16:47 1988141 500 228 14 258 +158.93 +/- 20.49
51286 ncm-et-3 2018-08-26 08:01 01:14:15 1989716 500 229 16 255 +158.08 +/- 20.7
51285 ncm-et-15 2018-08-26 08:01 01:15:23 1982164 500 229 14 257 +159.78 +/- 20.54
51284 ncm-et-9 2018-08-26 08:00 01:15:01 1988458 500 226 17 257 +154.7 +/- 20.62
51283 ncm-et-4 2018-08-26 07:59 01:17:02 1986564 500 251 12 237 +180.8 +/- 21.58
51282 ncm-et-13 2018-08-26 06:44 01:16:58 1985640 500 214 17 269 +144.72 +/- 20.0
51281 ncm-et-15 2018-08-26 06:44 01:16:11 1985147 500 222 14 264 +153.86 +/- 20.17
51280 ncm-et-10 2018-08-26 06:44 01:19:02 1906969 500 226 17 257 +154.7 +/- 20.62
51279 ncm-et-3 2018-08-26 06:44 01:16:24 1991300 500 226 10 264 +160.64 +/- 20.04
51278 ncm-et-9 2018-08-26 06:44 01:15:07 1990665 500 239 19 242 +164.07 +/- 21.49
51277 ncm-et-4 2018-08-26 06:44 01:14:03 1989716 500 237 22 241 +159.78 +/- 21.61
20514 ncm-et-5 2018-04-19 00:03 00:30:15 2009370 200 99 6 95 +174.99 +/- 34.32
20513 ncm-et-12 2018-04-19 00:03 00:30:37 2018883 204 92 7 105 +154.14 +/- 32.35
20512 ncm-et-4 2018-04-19 00:02 00:31:23 2022964 211 97 5 109 +162.36 +/- 31.48
20511 ncm-et-3 2018-04-19 00:01 00:31:51 2025408 215 95 5 115 +154.96 +/- 30.44
20510 ncm-et-13 2018-04-19 00:01 00:32:07 2024590 213 102 7 104 +166.67 +/- 32.73
20509 ncm-et-11 2018-04-19 00:01 00:32:12 2017583 203 94 3 106 +167.65 +/- 31.61
20508 ncm-et-14 2018-04-19 00:00 00:33:09 2021163 219 103 13 103 +151.75 +/- 33.41
20507 ncm-et-16 2018-04-19 00:00 00:33:15 2019696 221 99 9 113 +150.2 +/- 31.33
20506 ncm-et-10 2018-04-19 00:00 00:33:25 2020185 219 88 10 121 +129.41 +/- 29.94
20505 ncm-et-7 2018-04-19 00:00 00:33:17 1998551 214 107 1 106 +188.69 +/- 31.56
20504 ncm-et-6 2018-04-19 00:00 00:33:28 2025081 215 98 5 112 +160.88 +/- 31.0
20503 ncm-et-15 2018-04-19 00:00 00:33:25 2018233 224 100 5 119 +157.28 +/- 29.93
20502 ncm-et-8 2018-04-19 00:00 00:33:39 2024268 214 85 7 122 +132.74 +/- 29.36
20501 ncm-et-9 2018-04-18 23:59 00:34:21 2027211 228 104 7 117 +157.84 +/- 30.57
20500 ncm-et-9 2018-04-18 22:44 01:13:38 2028688 500 232 11 257 +164.93 +/- 20.44
20499 ncm-et-12 2018-04-18 22:44 01:17:16 1958234 500 217 18 265 +146.36 +/- 20.23
20498 ncm-et-14 2018-04-18 22:44 01:14:48 2018071 500 232 14 254 +162.35 +/- 20.7
20497 ncm-et-13 2018-04-18 22:44 01:15:48 2025408 500 251 11 238 +181.7 +/- 21.49
20496 ncm-et-16 2018-04-18 22:44 01:14:38 2016124 500 224 13 263 +156.39 +/- 20.19
20495 ncm-et-8 2018-04-18 22:44 01:14:22 2022793 500 231 26 243 +151.35 +/- 21.57
20494 ncm-et-3 2018-04-18 22:44 01:15:59 2024754 500 216 17 267 +146.36 +/- 20.1
20493 ncm-et-11 2018-04-18 22:44 01:15:37 1985574 500 247 13 240 +176.33 +/- 21.44
20492 ncm-et-7 2018-04-18 22:44 01:14:39 1996162 500 222 17 261 +151.35 +/- 20.41
20491 ncm-et-5 2018-04-18 22:44 01:17:21 1975842 500 236 18 246 +162.35 +/- 21.24
20490 ncm-et-6 2018-04-18 22:44 01:14:36 2024917 500 238 9 253 +171.9 +/- 20.58
20489 ncm-et-4 2018-04-18 22:44 01:16:33 2025572 500 243 14 243 +171.9 +/- 21.3
20488 ncm-et-10 2018-04-18 22:44 01:14:41 2015962 500 250 17 233 +175.44 +/- 21.95
20487 ncm-et-15 2018-04-18 22:44 01:14:33 2017582 500 216 10 274 +152.18 +/- 19.52

Commit

Commit ID e9aeaad05266ca557a9496b5a17b4c5f82f0e946
Author syzygy1
Date 2018-04-18 15:49:19 UTC
Analysis Contempt combo box This patch introduces an Analysis Contempt UCI combo box to control the behaviour of contempt during analysis. The possible values are Both, Off, White, Black. Technically, the engine is supposed to be in analysis mode if UCI_AnalyseMode is set by the graphical user interface or if the user has chosen infinite analysis mode ("go infinite"). Credits: the idea for the combo box is due to Michel Van den Bergh. No functional change (outside analysis mode). ----------------------------------------------------- The so-called "contempt" is an optimism value that the engine adds to one color to avoid simplifications and keep tension in the position during its search. It was introduced in Stockfish 9 and seemed to give good results during the TCEC 11 tournament (Stockfish seemed to play a little bit more actively than in previous seasons). The patch does not change the play during match or blitz play, but gives more options for correspondance players to decide for which color(s) they would like to use contempt in analysis mode (infinite time). Here is a description of the various options: * Both : in analysis mode, use the contempt for both players (alternating) * Off : in analysis mode, use the contempt for none of the players * White : in analysis mode, White will play actively, Black will play passively * Black : in analysis mode, Black will play actively, White will play passively
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