Dev Builds » 20190129-1640

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	08:35:02	1967122	3340	1917	69	1354	+216.49 +/- 9.12
ncm-et-4	08:35:44	1954814	3304	1908	72	1324	+217.69 +/- 9.24
ncm-et-9	08:36:29	1975287	3356	1904	66	1386	+213.69 +/- 9.0
ncm-et-10	08:36:02	1964830	3326	1897	78	1351	+213.31 +/- 9.15
ncm-et-13	08:36:33	1975714	3352	1911	78	1363	+213.28 +/- 9.11
ncm-et-15	08:34:07	1972503	3322	1906	70	1346	+216.19 +/- 9.15
			20000	11443	433	8124	+215.1 +/- 3.73

Test Detail

ID	Host	Started (UTC)	Duration	Base NPS	Games	Wins	Losses	Draws	Elo	PGN
68066	ncm-et-4	2019-01-30 03:44	00:47:00	1964461	304	189	5	110	+243.7 +/- 32.33	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3742505218 \ -pgnout /tmp/ncm-dbt-20190129-1640-042.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.43+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68065	ncm-et-15	2019-01-30 03:41	00:50:10	1969560	322	179	7	136	+207.05 +/- 28.83	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1180931393 \ -pgnout /tmp/ncm-dbt-20190129-1640-041.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.37+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68064	ncm-et-10	2019-01-30 03:41	00:50:39	1962165	326	196	6	124	+231.64 +/- 30.38	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 547302980 \ -pgnout /tmp/ncm-dbt-20190129-1640-040.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68063	ncm-et-13	2019-01-30 03:39	00:52:42	1966614	352	205	8	139	+219.7 +/- 28.68	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 487930799 \ -pgnout /tmp/ncm-dbt-20190129-1640-039.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.41+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68062	ncm-et-3	2019-01-30 03:38	00:52:58	1962152	340	211	6	123	+242.43 +/- 30.58	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 191358567 \ -pgnout /tmp/ncm-dbt-20190129-1640-038.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68061	ncm-et-9	2019-01-30 03:37	00:54:41	1973292	356	195	6	155	+205.47 +/- 26.82	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 240221878 \ -pgnout /tmp/ncm-dbt-20190129-1640-037.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.32+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68060	ncm-et-4	2019-01-30 02:25	01:17:47	1965533	500	298	12	190	+226.0 +/- 24.57	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 498543804 \ -pgnout /tmp/ncm-dbt-20190129-1640-036.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.42+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68059	ncm-et-10	2019-01-30 02:23	01:16:34	1968935	500	287	11	202	+215.85 +/- 23.71	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 440245594 \ -pgnout /tmp/ncm-dbt-20190129-1640-035.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.38+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68058	ncm-et-15	2019-01-30 02:23	01:16:44	1983294	500	277	10	213	+206.98 +/- 22.96	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1272534848 \ -pgnout /tmp/ncm-dbt-20190129-1640-034.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.20+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68057	ncm-et-13	2019-01-30 02:20	01:17:22	1966781	500	274	6	220	+207.95 +/- 22.37	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3750096833 \ -pgnout /tmp/ncm-dbt-20190129-1640-033.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.41+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68056	ncm-et-3	2019-01-30 02:20	01:17:35	1982088	500	279	9	212	+209.91 +/- 22.99	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3243421653 \ -pgnout /tmp/ncm-dbt-20190129-1640-032.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.22+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68055	ncm-et-9	2019-01-30 02:19	01:16:45	1972536	500	294	12	194	+221.9 +/- 24.29	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 976350646 \ -pgnout /tmp/ncm-dbt-20190129-1640-031.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.33+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68054	ncm-et-4	2019-01-30 01:07	01:17:32	1965533	500	284	15	201	+208.93 +/- 23.88	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4127592769 \ -pgnout /tmp/ncm-dbt-20190129-1640-030.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.42+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68053	ncm-et-15	2019-01-30 01:04	01:18:11	1974361	500	293	6	201	+227.04 +/- 23.61	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1671357836 \ -pgnout /tmp/ncm-dbt-20190129-1640-029.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.31+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68052	ncm-et-10	2019-01-30 01:04	01:18:22	1961544	500	274	13	213	+201.19 +/- 23.05	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3140600611 \ -pgnout /tmp/ncm-dbt-20190129-1640-028.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.47+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68051	ncm-et-13	2019-01-30 01:01	01:17:33	1977629	500	265	15	220	+190.85 +/- 22.66	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3448987862 \ -pgnout /tmp/ncm-dbt-20190129-1640-027.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.27+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68050	ncm-et-3	2019-01-30 01:01	01:17:50	1947854	500	286	9	205	+216.85 +/- 23.45	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 907971299 \ -pgnout /tmp/ncm-dbt-20190129-1640-026.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.64+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68049	ncm-et-9	2019-01-30 00:59	01:18:52	1978888	500	280	8	212	+211.87 +/- 22.95	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2760090636 \ -pgnout /tmp/ncm-dbt-20190129-1640-025.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.26+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68048	ncm-et-4	2019-01-29 23:47	01:18:22	1958949	500	285	15	200	+209.91 +/- 23.94	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3497591096 \ -pgnout /tmp/ncm-dbt-20190129-1640-024.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.50+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68047	ncm-et-10	2019-01-29 23:45	01:17:28	1976118	500	288	12	200	+215.85 +/- 23.87	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1001233684 \ -pgnout /tmp/ncm-dbt-20190129-1640-023.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.29+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68046	ncm-et-15	2019-01-29 23:45	01:17:53	1966324	500	302	8	190	+234.38 +/- 24.46	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1861829086 \ -pgnout /tmp/ncm-dbt-20190129-1640-022.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.41+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68045	ncm-et-3	2019-01-29 23:44	01:16:05	1965380	500	274	9	217	+205.04 +/- 22.67	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 569853664 \ -pgnout /tmp/ncm-dbt-20190129-1640-021.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.42+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68044	ncm-et-13	2019-01-29 23:43	01:17:47	1977944	500	280	18	202	+202.15 +/- 23.87	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 876453785 \ -pgnout /tmp/ncm-dbt-20190129-1640-020.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.27+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68043	ncm-et-9	2019-01-29 23:41	01:16:24	1985513	500	267	10	223	+197.4 +/- 22.34	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3614320282 \ -pgnout /tmp/ncm-dbt-20190129-1640-019.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.18+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68042	ncm-et-10	2019-01-29 22:28	01:16:01	1965949	500	285	10	205	+214.85 +/- 23.48	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3526642520 \ -pgnout /tmp/ncm-dbt-20190129-1640-018.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.42+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68041	ncm-et-4	2019-01-29 22:26	01:19:52	1906594	500	283	11	206	+211.87 +/- 23.44	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3584608388 \ -pgnout /tmp/ncm-dbt-20190129-1640-017.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=25.18+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68040	ncm-et-15	2019-01-29 22:26	01:17:34	1968482	500	292	17	191	+214.85 +/- 24.6	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 659158554 \ -pgnout /tmp/ncm-dbt-20190129-1640-016.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.38+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68039	ncm-et-3	2019-01-29 22:26	01:16:39	1965536	500	295	14	191	+220.88 +/- 24.55	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2271278109 \ -pgnout /tmp/ncm-dbt-20190129-1640-015.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.42+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68038	ncm-et-13	2019-01-29 22:25	01:16:20	1970331	500	308	5	187	+244.1 +/- 24.57	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2869808045 \ -pgnout /tmp/ncm-dbt-20190129-1640-014.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.36+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68037	ncm-et-9	2019-01-29 22:25	01:15:16	1970698	500	291	15	194	+215.85 +/- 24.36	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4156842290 \ -pgnout /tmp/ncm-dbt-20190129-1640-013.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.36+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68036	ncm-et-15	2019-01-29 21:09	01:16:30	1978733	500	287	11	202	+215.85 +/- 23.71	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4233672261 \ -pgnout /tmp/ncm-dbt-20190129-1640-012.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.26+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68035	ncm-et-3	2019-01-29 21:08	01:17:07	1965232	500	282	13	205	+208.93 +/- 23.56	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1925286210 \ -pgnout /tmp/ncm-dbt-20190129-1640-011.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.42+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68034	ncm-et-4	2019-01-29 21:07	01:17:59	1962767	500	282	10	208	+211.87 +/- 23.28	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1400460619 \ -pgnout /tmp/ncm-dbt-20190129-1640-010.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68033	ncm-et-13	2019-01-29 21:07	01:17:14	1986637	500	290	14	196	+215.85 +/- 24.2	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3764851634 \ -pgnout /tmp/ncm-dbt-20190129-1640-009.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.16+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68032	ncm-et-10	2019-01-29 21:07	01:20:15	1956941	500	275	16	209	+199.29 +/- 23.37	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2924037810 \ -pgnout /tmp/ncm-dbt-20190129-1640-008.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.53+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68031	ncm-et-9	2019-01-29 21:06	01:17:59	1973274	500	281	7	212	+213.85 +/- 22.92	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3253154316 \ -pgnout /tmp/ncm-dbt-20190129-1640-007.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.33+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68030	ncm-et-15	2019-01-29 19:50	01:17:05	1966767	500	276	11	213	+205.04 +/- 22.99	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2407871523 \ -pgnout /tmp/ncm-dbt-20190129-1640-006.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.41+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68029	ncm-et-3	2019-01-29 19:50	01:16:48	1981616	500	290	9	201	+220.88 +/- 23.72	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3804871794 \ -pgnout /tmp/ncm-dbt-20190129-1640-005.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.22+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68028	ncm-et-4	2019-01-29 19:49	01:17:12	1959863	500	287	4	209	+222.92 +/- 22.99	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2540179015 \ -pgnout /tmp/ncm-dbt-20190129-1640-004.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.49+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68027	ncm-et-10	2019-01-29 19:49	01:16:43	1962164	500	292	10	198	+221.9 +/- 23.95	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1264952329 \ -pgnout /tmp/ncm-dbt-20190129-1640-003.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.46+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68026	ncm-et-9	2019-01-29 19:49	01:16:32	1972809	500	296	8	196	+228.08 +/- 24.03	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2044215470 \ -pgnout /tmp/ncm-dbt-20190129-1640-002.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.33+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
68025	ncm-et-13	2019-01-29 19:48	01:17:35	1984068	500	289	12	199	+216.85 +/- 23.94	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3983992260 \ -pgnout /tmp/ncm-dbt-20190129-1640-001.pgn \ -openings \ file=/home/chess/www/releases/20190123182151/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.19+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190129-1640 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190129-1640-3302349662f8c0b01946cd9d62ac087685c0c816/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish

Commit

Commit ID	3302349662f8c0b01946cd9d62ac087685c0c816
Author	DU-jdto
Date	2019-01-29 16:40:00 UTC
Don't update pvHit after IID This patch removes line 875 of search.cpp, which was updating pvHit after IID. Bench testing at depth 22 shows that line 875 of search.cpp never changes the value of pvHit at NonPV nodes, while at PV nodes it often changes the value from true to false (and never the reverse). This is because the definition of pvHit at line 642 is : ``` pvHit = (ttHit && tte->pv_hit()) \|\| (PvNode && depth > 4 * ONE_PLY); ``` while the assignment after IID omits the ` (PvNode && depth > 4 * ONE_PLY) ` condition. As such, unlike the other two post-IID tte reads, this line of code does not make SF's state more consistent, but rather introduces an inconsistency in the definition of pvHit. Indeed, changing line 875 read ``` pvHit = (ttHit && tte->pv_hit()) \|\| (PvNode && depth > 4 * ONE_PLY); ``` to match line 642 is functionally equivalent to removing the line entirely, as this patch does. STC LLR: 2.96 (-2.94,2.94) [-3.00,1.00] Total: 62756 W: 13787 L: 13746 D: 35223 http://tests.stockfishchess.org/tests/view/5c446c850ebc5902bb5d4b75 LTC LLR: 3.19 (-2.94,2.94) [-3.00,1.00] Total: 61900 W: 10179 L: 10111 D: 41610 http://tests.stockfishchess.org/tests/view/5c45bf610ebc5902bb5d5d62 Bench: 3796134