Dev Builds » 20200220-0732

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	08:23:10	1964406	3336	2052	43	1241	+242.03 +/- 9.53
ncm-et-4	08:21:05	1944606	3277	2064	58	1155	+247.49 +/- 9.94
ncm-et-9	08:23:52	1967720	3370	2095	62	1213	+242.6 +/- 9.7
ncm-et-10	08:21:37	1960430	3326	2032	56	1238	+237.64 +/- 9.57
ncm-et-13	08:24:46	1961543	3337	2051	50	1236	+240.63 +/- 9.57
ncm-et-15	08:24:35	1968542	3354	2091	51	1212	+245.33 +/- 9.68
			20000	12385	320	7295	+242.59 +/- 3.94

Test Detail

ID	Host	Started (UTC)	Duration	Base NPS	Games	Wins	Losses	Draws	Elo	PGN
116658	ncm-et-4	2020-02-20 21:11	00:41:54	1970013	277	171	7	99	+236.54 +/- 34.27	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2920177354 \ -pgnout /tmp/ncm-dbt-20200220-0732-042.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116657	ncm-et-10	2020-02-20 21:04	00:48:48	1964154	326	215	7	104	+262.26 +/- 33.52	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3328172666 \ -pgnout /tmp/ncm-dbt-20200220-0732-041.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116656	ncm-et-3	2020-02-20 21:02	00:50:41	1965997	336	199	2	135	+233.48 +/- 28.69	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 69082894 \ -pgnout /tmp/ncm-dbt-20200220-0732-040.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116655	ncm-et-13	2020-02-20 21:02	00:50:34	1962766	337	213	8	116	+245.37 +/- 31.66	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3271444713 \ -pgnout /tmp/ncm-dbt-20200220-0732-039.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116654	ncm-et-15	2020-02-20 21:00	00:53:24	1965077	354	227	7	120	+252.72 +/- 31.09	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1880336315 \ -pgnout /tmp/ncm-dbt-20200220-0732-038.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116653	ncm-et-9	2020-02-20 20:58	00:55:27	1966617	370	232	8	130	+243.77 +/- 29.84	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 639415947 \ -pgnout /tmp/ncm-dbt-20200220-0732-037.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116652	ncm-et-4	2020-02-20 19:53	01:16:53	1941074	500	316	7	177	+250.77 +/- 25.42	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1545404255 \ -pgnout /tmp/ncm-dbt-20200220-0732-036.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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=24.73+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116651	ncm-et-10	2020-02-20 19:47	01:16:24	1955876	500	318	10	172	+249.64 +/- 25.91	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3890860233 \ -pgnout /tmp/ncm-dbt-20200220-0732-035.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116650	ncm-et-3	2020-02-20 19:46	01:15:12	1962148	500	312	10	178	+243.0 +/- 25.43	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 875835183 \ -pgnout /tmp/ncm-dbt-20200220-0732-034.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116649	ncm-et-13	2020-02-20 19:45	01:15:51	1958020	500	300	11	189	+229.12 +/- 24.62	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4053193900 \ -pgnout /tmp/ncm-dbt-20200220-0732-033.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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=24.51+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116648	ncm-et-15	2020-02-20 19:43	01:15:23	1970023	500	310	7	183	+244.1 +/- 24.95	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2190611308 \ -pgnout /tmp/ncm-dbt-20200220-0732-032.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116647	ncm-et-9	2020-02-20 19:41	01:15:03	1963840	500	299	9	192	+230.16 +/- 24.35	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4196909517 \ -pgnout /tmp/ncm-dbt-20200220-0732-031.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116646	ncm-et-4	2020-02-20 18:32	01:20:36	1855206	500	326	6	168	+263.42 +/- 26.13	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3363319803 \ -pgnout /tmp/ncm-dbt-20200220-0732-030.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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=25.87+0.26 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116645	ncm-et-3	2020-02-20 18:30	01:15:17	1961852	500	284	6	210	+217.85 +/- 23.01	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1655984057 \ -pgnout /tmp/ncm-dbt-20200220-0732-029.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116644	ncm-et-10	2020-02-20 18:29	01:16:31	1954805	500	302	5	193	+237.58 +/- 24.13	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 108420680 \ -pgnout /tmp/ncm-dbt-20200220-0732-028.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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=24.55+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116643	ncm-et-13	2020-02-20 18:28	01:16:32	1964301	500	287	7	206	+219.87 +/- 23.31	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3215858565 \ -pgnout /tmp/ncm-dbt-20200220-0732-027.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116642	ncm-et-15	2020-02-20 18:27	01:15:26	1969246	500	323	13	164	+251.89 +/- 26.64	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3598434666 \ -pgnout /tmp/ncm-dbt-20200220-0732-026.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116641	ncm-et-9	2020-02-20 18:26	01:14:11	1968930	500	314	14	172	+240.82 +/- 25.99	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2374021610 \ -pgnout /tmp/ncm-dbt-20200220-0732-025.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116640	ncm-et-4	2020-02-20 17:14	01:16:14	1943139	500	315	11	174	+245.2 +/- 25.77	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4067603714 \ -pgnout /tmp/ncm-dbt-20200220-0732-024.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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=24.70+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116639	ncm-et-3	2020-02-20 17:13	01:15:31	1967539	500	311	7	182	+245.2 +/- 25.02	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4162926550 \ -pgnout /tmp/ncm-dbt-20200220-0732-023.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116638	ncm-et-10	2020-02-20 17:13	01:15:07	1962307	500	309	9	182	+240.82 +/- 25.09	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 307662682 \ -pgnout /tmp/ncm-dbt-20200220-0732-022.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116637	ncm-et-13	2020-02-20 17:11	01:15:33	1965842	500	326	6	168	+263.42 +/- 26.13	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2122605344 \ -pgnout /tmp/ncm-dbt-20200220-0732-021.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116636	ncm-et-9	2020-02-20 17:10	01:14:43	1968469	500	311	7	182	+245.2 +/- 25.02	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3607785384 \ -pgnout /tmp/ncm-dbt-20200220-0732-020.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116635	ncm-et-15	2020-02-20 17:10	01:15:39	1968938	500	311	6	183	+246.3 +/- 24.91	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3756941105 \ -pgnout /tmp/ncm-dbt-20200220-0732-019.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116634	ncm-et-4	2020-02-20 15:59	01:14:28	1972501	500	311	5	184	+247.41 +/- 24.79	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1254999488 \ -pgnout /tmp/ncm-dbt-20200220-0732-018.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116633	ncm-et-3	2020-02-20 15:58	01:14:34	1970067	500	308	4	188	+245.2 +/- 24.45	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1270585672 \ -pgnout /tmp/ncm-dbt-20200220-0732-017.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116632	ncm-et-10	2020-02-20 15:57	01:14:42	1963997	500	289	11	200	+217.85 +/- 23.85	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1633645945 \ -pgnout /tmp/ncm-dbt-20200220-0732-016.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116631	ncm-et-13	2020-02-20 15:54	01:15:59	1958797	500	310	6	184	+245.2 +/- 24.83	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1318068496 \ -pgnout /tmp/ncm-dbt-20200220-0732-015.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116630	ncm-et-15	2020-02-20 15:54	01:15:08	1970800	500	295	8	197	+227.04 +/- 23.96	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 689738619 \ -pgnout /tmp/ncm-dbt-20200220-0732-014.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116629	ncm-et-9	2020-02-20 15:54	01:15:47	1966156	500	321	6	173	+257.59 +/- 25.71	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3888653621 \ -pgnout /tmp/ncm-dbt-20200220-0732-013.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116628	ncm-et-4	2020-02-20 14:42	01:15:18	1967853	500	319	14	167	+246.3 +/- 26.4	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1525366700 \ -pgnout /tmp/ncm-dbt-20200220-0732-012.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116627	ncm-et-10	2020-02-20 14:42	01:14:00	1964154	500	303	5	192	+238.66 +/- 24.2	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2945096940 \ -pgnout /tmp/ncm-dbt-20200220-0732-011.pgn \ -openings \ file=/home/chess/www/releases/20200220143830/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116626	ncm-et-3	2020-02-20 14:40	01:16:50	1957859	500	318	2	180	+258.75 +/- 24.97	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3514987239 \ -pgnout /tmp/ncm-dbt-20200220-0732-010.pgn \ -openings \ file=/home/chess/www/releases/20200220141902/engines/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=24.52+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116625	ncm-et-15	2020-02-20 14:39	01:14:10	1969873	500	299	6	195	+233.32 +/- 24.03	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1562846027 \ -pgnout /tmp/ncm-dbt-20200220-0732-009.pgn \ -openings \ file=/home/chess/www/releases/20200220141902/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116624	ncm-et-9	2020-02-20 14:38	01:14:17	1967848	500	302	8	190	+234.38 +/- 24.46	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4247037617 \ -pgnout /tmp/ncm-dbt-20200220-0732-008.pgn \ -openings \ file=/home/chess/www/releases/20200220141902/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116623	ncm-et-13	2020-02-20 14:38	01:15:09	1959235	500	304	8	188	+236.51 +/- 24.61	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1223273762 \ -pgnout /tmp/ncm-dbt-20200220-0732-007.pgn \ -openings \ file=/home/chess/www/releases/20200220141902/engines/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+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116622	ncm-et-4	2020-02-20 13:26	01:15:42	1962456	500	306	8	186	+238.66 +/- 24.75	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 459320685 \ -pgnout /tmp/ncm-dbt-20200220-0732-006.pgn \ -openings \ file=/home/chess/www/releases/20200207151128/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116621	ncm-et-10	2020-02-20 13:25	01:16:05	1957717	500	296	9	195	+227.04 +/- 24.13	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3301856831 \ -pgnout /tmp/ncm-dbt-20200220-0732-005.pgn \ -openings \ file=/home/chess/www/releases/20200207151128/engines/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=24.52+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116620	ncm-et-3	2020-02-20 13:24	01:15:05	1965380	500	320	12	168	+249.64 +/- 26.29	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 507989985 \ -pgnout /tmp/ncm-dbt-20200220-0732-004.pgn \ -openings \ file=/home/chess/www/releases/20200207151128/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116619	ncm-et-9	2020-02-20 13:23	01:14:24	1972185	500	316	10	174	+247.41 +/- 25.75	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3805085456 \ -pgnout /tmp/ncm-dbt-20200220-0732-003.pgn \ -openings \ file=/home/chess/www/releases/20200207151128/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116618	ncm-et-15	2020-02-20 13:22	01:15:25	1965842	500	326	4	170	+265.78 +/- 25.88	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1707990232 \ -pgnout /tmp/ncm-dbt-20200220-0732-002.pgn \ -openings \ file=/home/chess/www/releases/20200207151128/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish
116617	ncm-et-13	2020-02-20 13:22	01:15:08	1961841	500	311	4	185	+248.53 +/- 24.68	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4163265050 \ -pgnout /tmp/ncm-dbt-20200220-0732-001.pgn \ -openings \ file=/home/chess/www/releases/20200207151128/engines/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-20200220-0732 \ cmd=/home/chess/engines/e5_2670/devbuild/20200220-0732-ab930f8d3f4a657f493305559756e85534c88911/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/e5_2670/stockfish/7/stockfish

Commit

Commit ID	ab930f8d3f4a657f493305559756e85534c88911
Author	protonspring
Date	2020-02-20 07:32:17 UTC
Updated KNNKP endgame. This is a patch that significantly improves playing KNNKP endgames: ``` Score of 2553 vs master: 132 - 38 - 830 [0.547] 1000 Elo difference: 32.8 +/- 8.7, LOS: 100.0 %, DrawRatio: 83.0 % ``` At the same time it reduces the evaluation of this mostly draw engame from ~7.5 to ~1.5 This patch does not regress against master in normal games: STC LLR: 2.94 (-2.94,2.94) {-1.50,0.50} Total: 96616 W: 18459 L: 18424 D: 59733 Ptnml(0-2): 1409, 10812, 23802, 10905, 1380 http://tests.stockfishchess.org/tests/view/5e49dfe6f8d1d52b40cd31bc LTC LLR: 2.95 (-2.94,2.94) {-1.50,0.50} Total: 49726 W: 6340 L: 6304 D: 37082 Ptnml(0-2): 239, 4227, 15906, 4241, 250 http://tests.stockfishchess.org/tests/view/5e4ab9ee16fb3df8c4cc01d0 Theory: KNNK is a dead draw, however the presence of the additional weakSide pawn opens up some mate opportunities. The idea is to block the pawn (preferably behind the Troitsky line) with one of the knights and press the weakSide king into a corner. If we can stalemate the king, we release the pawn with the knight (to avoid actual stalemate), and use the knight to complete the mate before the pawn promotes. This is also why there is an additional penalty for advancement of the pawn. closes https://github.com/official-stockfish/Stockfish/pull/2553 Bench: 4981770