Dev Builds » 20210923-2119

You are viewing an old NCM Stockfish dev build test. You may find the most recent dev build tests using Stockfish 15 as the baseline here.

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	08:22:19	1961141	3346	2862	2	482	+442.47 ± 15.5
ncm-et-4	08:22:21	1960166	3324	2774	7	543	+415.53 ± 14.61
ncm-et-9	08:22:34	1959710	3348	2876	7	465	+445.3 ± 15.81
ncm-et-10	08:22:44	1956946	3308	2829	7	472	+440.33 ± 15.69
ncm-et-13	08:22:29	1959233	3337	2889	8	440	+453.87 ± 16.26
ncm-et-15	08:22:25	1960562	3337	2853	1	483	+442.35 ± 15.48
			20000	17083	32	2885	+439.65 ± 6.33

Test Detail

ID	Host	Started (UTC)	Duration	Base NPS	Games	Wins	Losses	Draws	Elo	PGN
151784	ncm-et-10	2021-09-25 04:45	00:46:49	1955871	308	267	0	41	+458.75 ± 54.45	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 410448005 \ -pgnout /tmp/ncm-dbt-20210923-2119-042.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151783	ncm-et-4	2021-09-25 04:43	00:49:07	1962834	324	269	1	54	+409.65 ± 47.13	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 280034052 \ -pgnout /tmp/ncm-dbt-20210923-2119-041.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.45+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151782	ncm-et-13	2021-09-25 04:42	00:49:51	1958318	337	301	0	36	+499.4 ± 58.47	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 67940549 \ -pgnout /tmp/ncm-dbt-20210923-2119-040.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.51+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151781	ncm-et-15	2021-09-25 04:41	00:51:19	1963392	337	290	0	47	+450.06 ± 50.65	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 4064378492 \ -pgnout /tmp/ncm-dbt-20210923-2119-039.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.45+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151780	ncm-et-9	2021-09-25 04:40	00:52:13	1959235	348	307	1	40	+476.93 ± 55.34	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 1092278712 \ -pgnout /tmp/ncm-dbt-20210923-2119-038.pgn \ -openings \ file=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+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151779	ncm-et-3	2021-09-25 04:39	00:52:28	1947695	346	310	0	36	+504.23 ± 58.48	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 3552659653 \ -pgnout /tmp/ncm-dbt-20210923-2119-037.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151778	ncm-et-10	2021-09-25 03:29	01:15:01	1956942	500	432	0	68	+454.76 ± 41.82	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 1552602420 \ -pgnout /tmp/ncm-dbt-20210923-2119-036.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151777	ncm-et-13	2021-09-25 03:26	01:14:50	1964772	500	428	0	72	+444.08 ± 40.59	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 215821710 \ -pgnout /tmp/ncm-dbt-20210923-2119-035.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151776	ncm-et-15	2021-09-25 03:26	01:14:19	1959565	500	422	0	78	+429.05 ± 38.92	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 2307030965 \ -pgnout /tmp/ncm-dbt-20210923-2119-034.pgn \ -openings \ file=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+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151775	ncm-et-4	2021-09-25 03:25	01:16:52	1958473	500	413	1	86	+406.2 ± 37.04	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 2960546866 \ -pgnout /tmp/ncm-dbt-20210923-2119-033.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.51+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151774	ncm-et-3	2021-09-25 03:24	01:14:24	1969401	500	432	0	68	+454.76 ± 41.82	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 231816800 \ -pgnout /tmp/ncm-dbt-20210923-2119-032.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151773	ncm-et-9	2021-09-25 03:23	01:15:51	1958012	500	425	1	74	+433.94 ± 40.08	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 706862819 \ -pgnout /tmp/ncm-dbt-20210923-2119-031.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.51+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151772	ncm-et-10	2021-09-25 02:13	01:15:20	1959703	500	425	0	75	+436.43 ± 39.73	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 2517903185 \ -pgnout /tmp/ncm-dbt-20210923-2119-030.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151771	ncm-et-15	2021-09-25 02:11	01:14:04	1960770	500	445	0	55	+494.02 ± 46.77	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 1586938930 \ -pgnout /tmp/ncm-dbt-20210923-2119-029.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.48+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151770	ncm-et-4	2021-09-25 02:11	01:13:57	1977492	500	417	2	81	+412.8 ± 38.27	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 3362567717 \ -pgnout /tmp/ncm-dbt-20210923-2119-028.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151769	ncm-et-13	2021-09-25 02:09	01:16:37	1949431	500	421	3	76	+419.61 ± 39.58	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 505863760 \ -pgnout /tmp/ncm-dbt-20210923-2119-027.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.62+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151768	ncm-et-3	2021-09-25 02:08	01:15:34	1962783	500	417	0	83	+417.31 ± 37.67	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 3601611836 \ -pgnout /tmp/ncm-dbt-20210923-2119-026.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151767	ncm-et-9	2021-09-25 02:07	01:15:39	1955125	500	435	0	65	+463.15 ± 42.83	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 3783673348 \ -pgnout /tmp/ncm-dbt-20210923-2119-025.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.55+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151766	ncm-et-10	2021-09-25 00:56	01:16:58	1954657	500	420	1	79	+421.93 ± 38.73	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 2021660192 \ -pgnout /tmp/ncm-dbt-20210923-2119-024.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.56+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151765	ncm-et-15	2021-09-25 00:54	01:16:42	1958318	500	435	0	65	+463.15 ± 42.83	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 1914207671 \ -pgnout /tmp/ncm-dbt-20210923-2119-023.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.51+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151764	ncm-et-4	2021-09-25 00:53	01:16:35	1955761	500	416	1	83	+412.8 ± 37.74	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 2497050578 \ -pgnout /tmp/ncm-dbt-20210923-2119-022.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151763	ncm-et-3	2021-09-25 00:53	01:14:47	1959542	500	424	1	75	+431.48 ± 39.8	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 3493650210 \ -pgnout /tmp/ncm-dbt-20210923-2119-021.pgn \ -openings \ file=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+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151762	ncm-et-13	2021-09-25 00:52	01:16:08	1950874	500	420	2	78	+419.61 ± 39.03	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 2966807945 \ -pgnout /tmp/ncm-dbt-20210923-2119-020.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.60+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151761	ncm-et-9	2021-09-25 00:51	01:14:44	1954805	500	429	2	69	+441.5 ± 41.61	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 2256459680 \ -pgnout /tmp/ncm-dbt-20210923-2119-019.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.55+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151760	ncm-et-15	2021-09-24 23:39	01:14:12	1959545	500	416	0	84	+415.04 ± 37.43	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 1485527168 \ -pgnout /tmp/ncm-dbt-20210923-2119-018.pgn \ -openings \ file=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+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151759	ncm-et-10	2021-09-24 23:38	01:17:05	1957098	500	423	2	75	+426.65 ± 39.83	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 1585746722 \ -pgnout /tmp/ncm-dbt-20210923-2119-017.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151758	ncm-et-3	2021-09-24 23:38	01:14:21	1961782	500	435	0	65	+463.15 ± 42.83	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 2449754257 \ -pgnout /tmp/ncm-dbt-20210923-2119-016.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151757	ncm-et-4	2021-09-24 23:37	01:16:09	1950826	500	414	0	86	+410.58 ± 36.97	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 122128429 \ -pgnout /tmp/ncm-dbt-20210923-2119-015.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.60+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151756	ncm-et-13	2021-09-24 23:36	01:15:18	1959848	500	442	1	57	+481.1 ± 45.96	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 641108014 \ -pgnout /tmp/ncm-dbt-20210923-2119-014.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151755	ncm-et-9	2021-09-24 23:36	01:14:44	1961240	500	427	1	72	+438.95 ± 40.66	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 1661812292 \ -pgnout /tmp/ncm-dbt-20210923-2119-013.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151754	ncm-et-10	2021-09-24 22:22	01:15:16	1957414	500	429	3	68	+438.95 ± 41.92	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 74719291 \ -pgnout /tmp/ncm-dbt-20210923-2119-012.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.52+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151753	ncm-et-15	2021-09-24 22:22	01:15:59	1958350	500	423	1	76	+429.05 ± 39.52	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 877840257 \ -pgnout /tmp/ncm-dbt-20210923-2119-011.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.51+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151752	ncm-et-4	2021-09-24 22:22	01:14:15	1956235	500	426	0	74	+438.95 ± 40.01	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 1873581209 \ -pgnout /tmp/ncm-dbt-20210923-2119-010.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151751	ncm-et-3	2021-09-24 22:21	01:15:29	1958472	500	421	0	79	+426.65 ± 38.66	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 718681596 \ -pgnout /tmp/ncm-dbt-20210923-2119-009.pgn \ -openings \ file=8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.51+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151750	ncm-et-9	2021-09-24 22:21	01:14:22	1963717	500	420	1	79	+421.93 ± 38.73	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 996846310 \ -pgnout /tmp/ncm-dbt-20210923-2119-008.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151749	ncm-et-13	2021-09-24 22:21	01:15:06	1966305	500	439	1	60	+471.92 ± 44.73	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 3804352097 \ -pgnout /tmp/ncm-dbt-20210923-2119-007.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151748	ncm-et-15	2021-09-24 21:06	01:15:50	1963994	500	422	0	78	+429.05 ± 38.92	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 3585922206 \ -pgnout /tmp/ncm-dbt-20210923-2119-006.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151747	ncm-et-4	2021-09-24 21:06	01:15:26	1959543	500	419	2	79	+417.32 ± 38.77	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 4079906271 \ -pgnout /tmp/ncm-dbt-20210923-2119-005.pgn \ -openings \ file=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+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151746	ncm-et-3	2021-09-24 21:06	01:15:16	1968312	500	423	1	76	+429.05 ± 39.52	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 86551834 \ -pgnout /tmp/ncm-dbt-20210923-2119-004.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151745	ncm-et-13	2021-09-24 21:05	01:14:39	1965085	500	438	1	61	+468.96 ± 44.35	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 1818219197 \ -pgnout /tmp/ncm-dbt-20210923-2119-003.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151744	ncm-et-9	2021-09-24 21:05	01:15:01	1965842	500	433	1	66	+454.76 ± 42.55	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 739243659 \ -pgnout /tmp/ncm-dbt-20210923-2119-002.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7
151743	ncm-et-10	2021-09-24 21:05	01:16:15	1956941	500	433	1	66	+454.76 ± 42.55	↓
cutechess-cli \ -debug \ -games 500 \ -concurrency 8 \ -srand 2208848965 \ -pgnout /tmp/ncm-dbt-20210923-2119-001.pgn \ -openings \ file=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=32 \ option.Threads=2 \ -engine \ name=20210923-2119 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:73018a03375b4b72ee482eb5a4a2152d7e4f0aac \ -engine \ name=sf7 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:7

Commit

Commit ID	73018a03375b4b72ee482eb5a4a2152d7e4f0aac
Author	Stéphane Nicolet
Date	2021-09-23 21:19:06 UTC
Detect search explosions This patch detects some search explosions (due to double extensions in search.cpp) which can happen in some pathological positions, and takes measures to ensure progress in search even for these pathological situations. While a small number of double extensions can be useful during search (for example to resolve a tactical sequence), a sustained regime of double extensions leads to search explosion and a non-finishing search. See the discussion in https://github.com/official-stockfish/Stockfish/pull/3544 and the issue https://github.com/official-stockfish/Stockfish/issues/3532 . The implemented algorithm is the following: a) at each node during search, store the current depth in the stack. Double extensions are by definition levels of the stack where the depth at ply N is strictly higher than depth at ply N-1. b) during search, calculate for each thread a running average of the number of double extensions in the last 4096 visited nodes. c) if one thread has more than 2% of double extensions for a sustained period of time (6 millions consecutive nodes, or about 4 seconds on my iMac), we decide that this thread is in an explosion state and we calm down this thread by preventing it to do any double extension for the next 6 millions nodes. To calculate the running averages, we also introduced a auxiliary class generalizing the computations of ttHitAverage variable we already had in code. The implementation uses an exponential moving average of period 4096 and resolution 1/1024, and all computations are done with integers for efficiency. ----------- Example where the patch solves a search explosion: ``` ./stockfish ucinewgame position fen 8/Pk6/8/1p6/8/P1K5/8/6B1 w - - 37 130 go infinite ``` This algorithm does not affect search in normal, non-pathological positions. We verified, for instance, that the usual bench is unchanged up to depth 20 at least, and that the node numbers are unchanged for a search of the starting position at depth 32. ------------- See https://github.com/official-stockfish/Stockfish/pull/3714 Bench: 5575265