Dev Builds » 20160925-0845

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	16:12:35	2010656	6691	1829	353	4509	+77.92 +/- 4.61
ncm-et-4	16:11:01	1999533	6632	1745	353	4534	+74.02 +/- 4.56
ncm-et-9	04:06:07	1974977	1673	422	92	1159	+69.44 +/- 8.98
ncm-et-10	04:06:22	1961124	1647	436	72	1139	+78.07 +/- 8.99
ncm-et-13	04:06:20	1977004	1670	463	105	1102	+75.65 +/- 9.48
ncm-et-15	04:06:22	1968590	1687	470	93	1124	+78.98 +/- 9.3
			20000	5365	1068	13567	+75.83 +/- 2.65

Test Detail

ID	Host	Started (UTC)	Duration	Base NPS	Games	Wins	Losses	Draws	Elo	PGN
66792	ncm-et-4	2019-01-20 08:30	00:19:11	1923100	128	33	3	92	+82.97 +/- 30.39	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3106978479 \ -pgnout /tmp/ncm-dbt-20160925-0845-045.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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=24.96+0.25 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66791	ncm-et-10	2019-01-20 08:28	00:21:26	1962623	147	37	6	104	+74.38 +/- 29.35	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 851469641 \ -pgnout /tmp/ncm-dbt-20160925-0845-044.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66790	ncm-et-9	2019-01-20 08:24	00:25:43	1971099	173	52	8	113	+90.35 +/- 29.49	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3170958581 \ -pgnout /tmp/ncm-dbt-20160925-0845-043.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66789	ncm-et-13	2019-01-20 08:24	00:25:46	1975452	170	49	16	105	+68.31 +/- 31.96	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2738618213 \ -pgnout /tmp/ncm-dbt-20160925-0845-042.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66788	ncm-et-15	2019-01-20 08:22	00:27:21	1965689	187	60	9	118	+97.22 +/- 29.28	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3758605652 \ -pgnout /tmp/ncm-dbt-20160925-0845-041.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66787	ncm-et-3	2019-01-20 08:21	00:28:55	1972694	195	58	12	125	+83.53 +/- 28.51	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1563293171 \ -pgnout /tmp/ncm-dbt-20160925-0845-040.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66786	ncm-et-10	2019-01-20 07:14	01:13:17	1965385	500	123	18	359	+74.06 +/- 15.55	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1547466262 \ -pgnout /tmp/ncm-dbt-20160925-0845-039.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66785	ncm-et-9	2019-01-20 07:10	01:13:02	1972515	500	124	28	348	+67.55 +/- 16.36	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 867679446 \ -pgnout /tmp/ncm-dbt-20160925-0845-038.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66784	ncm-et-4	2019-01-20 07:10	01:19:40	1828971	500	140	25	335	+81.37 +/- 16.94	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1120527973 \ -pgnout /tmp/ncm-dbt-20160925-0845-037.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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=26.24+0.26 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66783	ncm-et-13	2019-01-20 07:09	01:13:49	1985233	500	135	30	335	+74.06 +/- 17.05	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1536051297 \ -pgnout /tmp/ncm-dbt-20160925-0845-036.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66782	ncm-et-15	2019-01-20 07:08	01:13:10	1968947	500	128	26	346	+71.89 +/- 16.41	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 497679333 \ -pgnout /tmp/ncm-dbt-20160925-0845-035.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66781	ncm-et-3	2019-01-20 07:07	01:12:39	1965999	500	129	29	342	+70.44 +/- 16.68	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3759678826 \ -pgnout /tmp/ncm-dbt-20160925-0845-034.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66780	ncm-et-10	2019-01-20 05:57	01:15:48	1958317	500	138	21	341	+82.83 +/- 16.54	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 10779816 \ -pgnout /tmp/ncm-dbt-20160925-0845-033.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66779	ncm-et-9	2019-01-20 05:55	01:13:30	1972034	500	124	29	347	+66.82 +/- 16.43	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 995349239 \ -pgnout /tmp/ncm-dbt-20160925-0845-032.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66778	ncm-et-4	2019-01-20 05:55	01:13:49	1970496	500	144	26	330	+83.57 +/- 17.21	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2035523917 \ -pgnout /tmp/ncm-dbt-20160925-0845-031.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66777	ncm-et-15	2019-01-20 05:54	01:12:54	1968314	500	141	29	330	+79.17 +/- 17.28	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3577876532 \ -pgnout /tmp/ncm-dbt-20160925-0845-030.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66776	ncm-et-13	2019-01-20 05:54	01:13:59	1969704	500	136	24	340	+79.17 +/- 16.67	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1319722525 \ -pgnout /tmp/ncm-dbt-20160925-0845-029.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66775	ncm-et-3	2019-01-20 05:53	01:13:08	1964148	500	134	27	339	+75.52 +/- 16.79	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1284137500 \ -pgnout /tmp/ncm-dbt-20160925-0845-028.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66774	ncm-et-4	2019-01-20 04:40	01:13:26	1968006	500	127	27	346	+70.44 +/- 16.44	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1425858451 \ -pgnout /tmp/ncm-dbt-20160925-0845-027.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66773	ncm-et-9	2019-01-20 04:40	01:13:52	1984262	500	122	27	351	+66.82 +/- 16.18	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1317316918 \ -pgnout /tmp/ncm-dbt-20160925-0845-026.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.19+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66772	ncm-et-3	2019-01-20 04:40	01:11:47	1973907	500	119	22	359	+68.27 +/- 15.65	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1932309034 \ -pgnout /tmp/ncm-dbt-20160925-0845-025.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66771	ncm-et-10	2019-01-20 04:40	01:15:51	1958171	500	138	27	335	+78.44 +/- 16.99	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3845161134 \ -pgnout /tmp/ncm-dbt-20160925-0845-024.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66770	ncm-et-13	2019-01-20 04:40	01:12:46	1977629	500	143	35	322	+76.25 +/- 17.78	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3051835393 \ -pgnout /tmp/ncm-dbt-20160925-0845-023.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/stockfish/books/8moves_v3.pgn \ format=pgn \ order=random \ plies=16 \ -repeat \ -resign \ movecount=3 \ score=400 \ -draw \ movenumber=34 \ movecount=8 \ score=20 \ -each \ tc=24.27+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
66769	ncm-et-15	2019-01-20 04:40	01:12:57	1971410	500	141	29	330	+79.17 +/- 17.28	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1443888966 \ -pgnout /tmp/ncm-dbt-20160925-0845-022.pgn \ -openings \ file=/home/chess/www/releases/20190120014040/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-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/engines/stockfish/x86-64-modern/7/stockfish
437	ncm-et-4	2018-01-26 04:42	00:01:07	2028194	4	1	0	3	+88.62 +/- 172.94	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2426716495 \ -pgnout /tmp/ncm-dbt-20160925-0845-021.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.67+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
436	ncm-et-3	2018-01-26 03:33	01:10:20	2026719	496	125	20	351	+74.68 +/- 15.94	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1767938815 \ -pgnout /tmp/ncm-dbt-20160925-0845-020.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.68+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
435	ncm-et-4	2018-01-26 03:30	01:11:36	2026882	500	130	28	342	+71.89 +/- 16.66	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3468853434 \ -pgnout /tmp/ncm-dbt-20160925-0845-019.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.68+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
434	ncm-et-3	2018-01-26 02:19	01:13:12	2027866	500	136	26	338	+77.71 +/- 16.82	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4068748673 \ -pgnout /tmp/ncm-dbt-20160925-0845-018.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.67+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
433	ncm-et-4	2018-01-26 02:17	01:11:41	2028194	500	124	28	348	+67.55 +/- 16.36	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1704048433 \ -pgnout /tmp/ncm-dbt-20160925-0845-017.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.67+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
432	ncm-et-4	2018-01-26 01:04	01:11:50	2028524	500	122	21	357	+71.16 +/- 15.73	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3556901962 \ -pgnout /tmp/ncm-dbt-20160925-0845-016.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.66+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
431	ncm-et-3	2018-01-26 01:03	01:14:30	2026063	500	141	25	334	+82.1 +/- 16.99	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1969546639 \ -pgnout /tmp/ncm-dbt-20160925-0845-015.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.69+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
430	ncm-et-3	2018-01-25 23:50	01:12:09	2028194	500	140	30	330	+77.71 +/- 17.3	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1315348683 \ -pgnout /tmp/ncm-dbt-20160925-0845-014.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.67+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
429	ncm-et-4	2018-01-25 23:50	01:12:59	2026718	500	146	27	327	+84.31 +/- 17.38	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 419036048 \ -pgnout /tmp/ncm-dbt-20160925-0845-013.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.68+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
428	ncm-et-4	2018-01-25 22:36	01:12:36	2026227	500	124	25	351	+69.71 +/- 16.14	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4231769277 \ -pgnout /tmp/ncm-dbt-20160925-0845-012.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.69+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
427	ncm-et-3	2018-01-25 22:35	01:13:56	2025901	500	130	27	343	+72.61 +/- 16.59	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1647681419 \ -pgnout /tmp/ncm-dbt-20160925-0845-011.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.69+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
426	ncm-et-4	2018-01-25 21:22	01:13:20	2027866	500	130	29	341	+71.16 +/- 16.73	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 97755487 \ -pgnout /tmp/ncm-dbt-20160925-0845-010.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.67+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
425	ncm-et-3	2018-01-25 21:21	01:13:19	2027538	500	161	28	311	+94.7 +/- 18.19	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 1597358705 \ -pgnout /tmp/ncm-dbt-20160925-0845-009.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.67+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
424	ncm-et-3	2018-01-25 20:08	01:11:08	2024917	500	143	25	332	+83.57 +/- 17.09	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3314536174 \ -pgnout /tmp/ncm-dbt-20160925-0845-008.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.70+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
423	ncm-et-4	2018-01-25 20:06	01:14:33	2027702	500	136	35	329	+71.16 +/- 17.44	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4076753038 \ -pgnout /tmp/ncm-dbt-20160925-0845-007.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.67+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
422	ncm-et-3	2018-01-25 18:54	01:13:41	2028194	500	139	22	339	+82.83 +/- 16.67	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2389791319 \ -pgnout /tmp/ncm-dbt-20160925-0845-006.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.67+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
421	ncm-et-4	2018-01-25 18:53	01:11:55	2030002	500	132	24	344	+76.25 +/- 16.47	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3511692101 \ -pgnout /tmp/ncm-dbt-20160925-0845-005.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.65+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
420	ncm-et-3	2018-01-25 17:41	01:11:48	2028194	500	131	28	341	+72.61 +/- 16.71	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2902263816 \ -pgnout /tmp/ncm-dbt-20160925-0845-004.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.67+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
419	ncm-et-4	2018-01-25 17:39	01:13:10	2025081	500	133	32	335	+71.16 +/- 17.09	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 4229758222 \ -pgnout /tmp/ncm-dbt-20160925-0845-003.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.70+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
418	ncm-et-3	2018-01-25 16:28	01:12:03	2028851	500	143	32	325	+78.44 +/- 17.58	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 3813353086 \ -pgnout /tmp/ncm-dbt-20160925-0845-002.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.66+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish
417	ncm-et-4	2018-01-25 16:28	01:10:08	2027046	500	123	23	354	+70.44 +/- 15.94	↓
/home/chess/cutechess/projects/cli/cutechess-cli \ -games 500 \ -concurrency 8 \ -srand 2782909103 \ -pgnout /tmp/ncm-dbt-20160925-0845-001.pgn \ -openings \ file=/home/chess/www/releases/20180124014906/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=23.68+0.24 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=2 \ -engine \ name=sf-20160925-0845 \ cmd=/home/chess/devbuilds/bin/x86-64-modern/20160925-0845-7ae3c05795e79c9bd945607cdcfb08198f4c4b45/stockfish \ -engine \ name=sf7 \ cmd=/home/chess/stockfish/7/bin/stockfish

Commit

Commit ID	7ae3c05795e79c9bd945607cdcfb08198f4c4b45
Author	Stéphane Nicolet
Date	2016-09-25 08:45:10 UTC
Rename shift_bb() to shift() Rename shift_bb() to shift(), and DELTA_S to SOUTH, etc. to improve code readability, especially in evaluate.cpp when they are used together: old b = shift_bb<DELTA_S>(pos.pieces(PAWN)) new b = shift<SOUTH>(pos.pieces(PAWN)) While there fix some small code style issues. No functional change.