Dev Builds » 20190927-1046

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	08:30:58	1970866	3333	2027	60	1246	+235.53 +/- 9.55
ncm-et-4	08:28:48	1973545	3311	1998	57	1256	+233.44 +/- 9.49
ncm-et-9	08:32:15	1967775	3365	2105	67	1193	+243.91 +/- 9.79
ncm-et-10	08:23:37	1963061	3298	1943	47	1308	+227.5 +/- 9.26
ncm-et-13	08:31:11	1976469	3349	2000	75	1274	+227.45 +/- 9.45
ncm-et-15	08:31:23	1972066	3344	2034	66	1244	+234.66 +/- 9.57
			20000	12107	372	7521	+233.72 +/- 3.88

Test Detail

ID	Host	Started (UTC)	Duration	Base NPS	Games	Wins	Losses	Draws	Elo	PGN
97708	ncm-et-10	2019-09-27 22:29	00:45:03	1985052	298	164	6	128	+205.13 +/- 29.65	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3572767498 \ -pgnout /tmp/ncm-dbt-20190927-1046-042.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97707	ncm-et-4	2019-09-27 22:26	00:48:13	1969860	311	196	5	110	+248.61 +/- 32.36	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3803653250 \ -pgnout /tmp/ncm-dbt-20190927-1046-041.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97706	ncm-et-3	2019-09-27 22:24	00:50:11	1963691	333	213	4	116	+256.23 +/- 31.44	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2325361817 \ -pgnout /tmp/ncm-dbt-20190927-1046-040.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.44+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97705	ncm-et-15	2019-09-27 22:22	00:52:42	1974828	344	202	7	135	+223.36 +/- 29.08	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1301665070 \ -pgnout /tmp/ncm-dbt-20190927-1046-039.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97704	ncm-et-13	2019-09-27 22:21	00:53:38	1969410	349	214	9	126	+234.06 +/- 30.33	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1016101180 \ -pgnout /tmp/ncm-dbt-20190927-1046-038.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97703	ncm-et-9	2019-09-27 22:18	00:55:53	1968468	365	219	8	138	+229.16 +/- 28.85	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3220923614 \ -pgnout /tmp/ncm-dbt-20190927-1046-037.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97702	ncm-et-10	2019-09-27 21:12	01:16:04	1963840	500	303	11	186	+232.26 +/- 24.84	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 756633440 \ -pgnout /tmp/ncm-dbt-20190927-1046-036.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.44+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97701	ncm-et-4	2019-09-27 21:08	01:17:12	1967418	500	282	8	210	+213.85 +/- 23.08	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3330213365 \ -pgnout /tmp/ncm-dbt-20190927-1046-035.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.40+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97700	ncm-et-3	2019-09-27 21:06	01:16:42	1973443	500	306	4	190	+243.0 +/- 24.3	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3814496313 \ -pgnout /tmp/ncm-dbt-20190927-1046-034.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97699	ncm-et-15	2019-09-27 21:04	01:16:43	1972654	500	328	11	161	+259.91 +/- 26.87	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1592748558 \ -pgnout /tmp/ncm-dbt-20190927-1046-033.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97698	ncm-et-13	2019-09-27 21:03	01:16:30	1988647	500	293	10	197	+222.92 +/- 24.02	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1092631080 \ -pgnout /tmp/ncm-dbt-20190927-1046-032.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.14+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97697	ncm-et-9	2019-09-27 21:01	01:16:18	1966655	500	302	10	188	+232.26 +/- 24.67	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2000297813 \ -pgnout /tmp/ncm-dbt-20190927-1046-031.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97696	ncm-et-10	2019-09-27 19:52	01:18:21	1927336	500	293	7	200	+226.0 +/- 23.71	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3250449461 \ -pgnout /tmp/ncm-dbt-20190927-1046-030.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.90+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97695	ncm-et-4	2019-09-27 19:51	01:15:31	1971726	500	317	8	175	+250.77 +/- 25.61	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1525103214 \ -pgnout /tmp/ncm-dbt-20190927-1046-029.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.34+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97694	ncm-et-3	2019-09-27 19:48	01:17:15	1973438	500	290	8	202	+221.9 +/- 23.61	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3130285242 \ -pgnout /tmp/ncm-dbt-20190927-1046-028.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97693	ncm-et-15	2019-09-27 19:46	01:16:43	1972183	500	301	11	188	+230.16 +/- 24.69	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1914916407 \ -pgnout /tmp/ncm-dbt-20190927-1046-027.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.34+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97692	ncm-et-13	2019-09-27 19:45	01:16:59	1971104	500	293	9	198	+223.94 +/- 23.92	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 849379013 \ -pgnout /tmp/ncm-dbt-20190927-1046-026.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.35+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97691	ncm-et-9	2019-09-27 19:43	01:16:38	1970169	500	296	8	196	+228.08 +/- 24.03	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2324171962 \ -pgnout /tmp/ncm-dbt-20190927-1046-025.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97690	ncm-et-10	2019-09-27 18:33	01:18:16	1956345	500	317	5	178	+254.16 +/- 25.26	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3792571708 \ -pgnout /tmp/ncm-dbt-20190927-1046-024.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.54+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97689	ncm-et-4	2019-09-27 18:33	01:17:19	1968006	500	302	6	192	+236.51 +/- 24.24	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3892178305 \ -pgnout /tmp/ncm-dbt-20190927-1046-023.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.39+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97688	ncm-et-3	2019-09-27 18:30	01:16:43	1968479	500	301	12	187	+229.12 +/- 24.79	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 246075144 \ -pgnout /tmp/ncm-dbt-20190927-1046-022.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97687	ncm-et-13	2019-09-27 18:28	01:15:29	1975305	500	300	14	186	+226.0 +/- 24.91	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2824716737 \ -pgnout /tmp/ncm-dbt-20190927-1046-021.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.30+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97686	ncm-et-15	2019-09-27 18:28	01:16:35	1971879	500	306	10	184	+236.51 +/- 24.97	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3548743322 \ -pgnout /tmp/ncm-dbt-20190927-1046-020.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.34+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97685	ncm-et-9	2019-09-27 18:26	01:15:50	1964303	500	312	9	179	+244.1 +/- 25.32	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 704434123 \ -pgnout /tmp/ncm-dbt-20190927-1046-019.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.44+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97684	ncm-et-10	2019-09-27 17:16	01:15:47	1975620	500	291	4	205	+227.04 +/- 23.25	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3497402482 \ -pgnout /tmp/ncm-dbt-20190927-1046-018.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.30+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97683	ncm-et-4	2019-09-27 17:15	01:16:29	1981539	500	295	15	190	+219.87 +/- 24.64	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 82777461 \ -pgnout /tmp/ncm-dbt-20190927-1046-017.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97682	ncm-et-15	2019-09-27 17:12	01:15:26	1975209	500	305	13	182	+232.26 +/- 25.19	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 366919897 \ -pgnout /tmp/ncm-dbt-20190927-1046-016.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.30+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97681	ncm-et-13	2019-09-27 17:12	01:15:47	1992943	500	293	9	198	+223.94 +/- 23.92	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3626519580 \ -pgnout /tmp/ncm-dbt-20190927-1046-015.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.08+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97680	ncm-et-3	2019-09-27 17:12	01:17:31	1966773	500	315	9	176	+247.41 +/- 25.56	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4204927471 \ -pgnout /tmp/ncm-dbt-20190927-1046-014.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97679	ncm-et-9	2019-09-27 17:09	01:15:56	1967583	500	319	10	171	+250.77 +/- 25.99	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2441384782 \ -pgnout /tmp/ncm-dbt-20190927-1046-013.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.40+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97678	ncm-et-10	2019-09-27 16:00	01:14:59	1966001	500	297	6	197	+231.21 +/- 23.88	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2678567709 \ -pgnout /tmp/ncm-dbt-20190927-1046-012.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97677	ncm-et-4	2019-09-27 15:58	01:16:33	1976248	500	295	9	196	+226.0 +/- 24.06	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1870994936 \ -pgnout /tmp/ncm-dbt-20190927-1046-011.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97676	ncm-et-13	2019-09-27 15:54	01:16:59	1969093	500	290	12	198	+217.85 +/- 24.01	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3905855458 \ -pgnout /tmp/ncm-dbt-20190927-1046-010.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97675	ncm-et-3	2019-09-27 15:53	01:17:13	1983134	500	290	11	199	+218.86 +/- 23.91	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 129777484 \ -pgnout /tmp/ncm-dbt-20190927-1046-009.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97674	ncm-et-15	2019-09-27 15:53	01:17:43	1971098	500	279	11	210	+207.95 +/- 23.18	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3103808407 \ -pgnout /tmp/ncm-dbt-20190927-1046-008.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.35+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97673	ncm-et-9	2019-09-27 15:52	01:16:10	1967849	500	338	8	154	+275.45 +/- 27.45	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3260078496 \ -pgnout /tmp/ncm-dbt-20190927-1046-007.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.39+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97672	ncm-et-10	2019-09-27 14:44	01:15:07	1967235	500	278	8	214	+209.91 +/- 22.83	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3225890924 \ -pgnout /tmp/ncm-dbt-20190927-1046-006.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.40+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97671	ncm-et-4	2019-09-27 14:39	01:17:31	1980019	500	311	6	183	+246.3 +/- 24.91	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3939323123 \ -pgnout /tmp/ncm-dbt-20190927-1046-005.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.24+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97670	ncm-et-3	2019-09-27 14:37	01:15:23	1967104	500	312	12	176	+240.82 +/- 25.63	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1781300563 \ -pgnout /tmp/ncm-dbt-20190927-1046-004.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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=24.40+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97669	ncm-et-13	2019-09-27 14:37	01:15:49	1968783	500	317	12	171	+246.3 +/- 26.04	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 741715857 \ -pgnout /tmp/ncm-dbt-20190927-1046-003.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97668	ncm-et-15	2019-09-27 14:37	01:15:31	1966614	500	313	3	184	+251.89 +/- 24.71	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 521729051 \ -pgnout /tmp/ncm-dbt-20190927-1046-002.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
97667	ncm-et-9	2019-09-27 14:36	01:15:30	1969404	500	319	14	167	+246.3 +/- 26.4	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3462753528 \ -pgnout /tmp/ncm-dbt-20190927-1046-001.pgn \ -openings \ file=/home/chess/www/releases/20190923141557/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-20190927-1046 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20190927-1046-3a3ca6af0390d74427c218f29cb5fe1a913efb42/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish

Commit

Commit ID	3a3ca6af0390d74427c218f29cb5fe1a913efb42
Author	31m059
Date	2019-09-27 10:46:47 UTC
Extend castling independently of singular extension A curious feature of Stockfish's current extension code is its repeated use of "else if." In most cases, this makes no functional difference, because no more than one extension is applied; once one extension has been applied, the remaining ones can be safely ignored. However, if most singular extension search conditions are true, except "value < singularBeta", no non-singular extensions (e.g., castling) can be performed! Three tests were submitted, for three of Stockfish's four non-singular extensions. I excluded the shuffle extension, because historically there have been concerns about the fragility of its conditions, and I did not want to risk causing any serious search problems. - Modifying the passed pawn extension appeared roughly neutral at STC. At best, it appeared to be an improvement of less than 1 Elo. - Modifying check extension performed very poorly at STC - Modifying castling extension (this patch) produced a long "yellow" run at STC (insufficient to pass, but positive score) and a strong LTC. In simple terms, prior to this patch castling extension was occasionally not applied during search--on castling moves. The effect of this patch is to perform castling extension on more castling moves. It does so without adding any code complexity, simply by replacing an "else if" with "if" and reordering some existing code. STC: LLR: -2.96 (-2.94,2.94) [0.00,4.00] Total: 108114 W: 23877 L: 23615 D: 60622 http://tests.stockfishchess.org/tests/view/5d8d86bd0ebc590f3beb0c88 LTC: LLR: 2.96 (-2.94,2.94) [0.00,4.00] Total: 20862 W: 3517 L: 3298 D: 14047 http://tests.stockfishchess.org/tests/view/5d8d99cd0ebc590f3beb1899 Bench: 3728191 -------- Where do we go from here? - It seems strange to me that check extension performed so poorly -- clearly some of the singular extension conditions are also very important for check extension. I am not an expert in search, and I do not have any intuition about which of the eight conditions is/are the culprit. I will try a succession of eight STC tests to identify the relevant conditions, then try to replicate this PR for check extension. - Recent tests interacting with the castle extension may deserve retesting. I will shortly resubmit a few of my recent castling extension tweaks, rebased on this PR/commit. My deepest thanks to @noobpwnftw for the extraordinary CPU donation, and to all our other fishtest volunteers, who made it possible for a speculative LTC to pass in 70 minutes! Closes https://github.com/official-stockfish/Stockfish/pull/2331