Dev Builds » 20250824-1807

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host	Duration	Avg Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo
ncm-dbt-01	06:55:32	583797	4106	1694 457 1955	+108.02 ± 4.61	3 48 727 1259 16	+238.77 ± 12.58
ncm-dbt-02	06:54:04	586648	4106	1693 452 1961	+108.39 ± 4.63	0 54 726 1251 22	+237.46 ± 12.59
ncm-dbt-03	06:53:42	583904	4084	1670 478 1936	+104.44 ± 4.75	1 74 713 1240 14	+228.79 ± 12.75
ncm-dbt-04	06:04:24	568863	3614	1462 406 1746	+104.57 ± 4.98	2 52 656 1082 15	+228.7 ± 13.25
ncm-dbt-05	06:54:35	579084	4090	1667 494 1929	+102.52 ± 4.64	1 59 766 1204 15	+223.3 ± 12.25
			20000	8186 2287 9527	+105.61 ± 2.11	7 287 3588 6036 82	+231.42 ± 5.66

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	PGN
428593	ncm-dbt-03	584579	84	35 6 43	+125.07 ± 35.8	0 2 10 29 1	+279.59 ± 115.86	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 994030998 \ -pgnout ncm-dbt-20250824-1807-044.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428592	ncm-dbt-05	578630	90	40 10 40	+120.4 ± 31.98	0 1 14 29 1	+266.04 ± 96.04	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1163553411 \ -pgnout ncm-dbt-20250824-1807-043.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428591	ncm-dbt-02	587537	106	46 8 52	+130.33 ± 33.73	0 2 14 34 3	+275.68 ± 96.21	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2584024783 \ -pgnout ncm-dbt-20250824-1807-042.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428590	ncm-dbt-01	582068	106	41 17 48	+80.05 ± 26.41	0 1 27 25 0	+169.64 ± 64.03	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 212643303 \ -pgnout ncm-dbt-20250824-1807-041.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428589	ncm-dbt-04	570629	114	40 15 59	+77.44 ± 30.86	0 4 25 27 1	+155.99 ± 69.34	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1640814037 \ -pgnout ncm-dbt-20250824-1807-040.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428588	ncm-dbt-03	584916	500	207 48 245	+114.45 ± 12.12	0 2 88 159 1	+258.75 ± 36.04	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1844056588 \ -pgnout ncm-dbt-20250824-1807-039.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428587	ncm-dbt-05	580696	500	211 76 213	+96.19 ± 13.64	1 5 106 134 4	+204.07 ± 32.73	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 112729457 \ -pgnout ncm-dbt-20250824-1807-038.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428586	ncm-dbt-02	585928	500	205 51 244	+110.6 ± 12.52	0 4 89 156 1	+247.41 ± 36.02	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4046264381 \ -pgnout ncm-dbt-20250824-1807-037.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428585	ncm-dbt-01	584076	500	206 61 233	+103.73 ± 12.7	1 2 99 147 1	+230.16 ± 33.79	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1791208133 \ -pgnout ncm-dbt-20250824-1807-036.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428584	ncm-dbt-04	568196	500	206 52 242	+110.6 ± 12.7	0 6 84 160 0	+249.64 ± 37.33	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3550820734 \ -pgnout ncm-dbt-20250824-1807-035.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428583	ncm-dbt-03	583070	500	199 60 241	+99.2 ± 13.51	0 10 92 147 1	+215.85 ± 35.68	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 227460686 \ -pgnout ncm-dbt-20250824-1807-034.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428582	ncm-dbt-05	574459	500	194 59 247	+96.19 ± 13.48	0 10 96 143 1	+207.95 ± 34.86	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2473481061 \ -pgnout ncm-dbt-20250824-1807-033.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428581	ncm-dbt-02	587240	500	202 64 234	+98.44 ± 13.18	0 7 100 141 2	+211.87 ± 33.93	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3459161748 \ -pgnout ncm-dbt-20250824-1807-032.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428580	ncm-dbt-01	585042	500	199 50 251	+106.78 ± 13.56	1 8 82 159 0	+240.82 ± 37.9	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 637399574 \ -pgnout ncm-dbt-20250824-1807-031.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428579	ncm-dbt-04	567799	500	195 45 260	+107.54 ± 13.23	1 4 91 152 2	+238.66 ± 35.65	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4119437783 \ -pgnout ncm-dbt-20250824-1807-030.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428578	ncm-dbt-03	585632	500	205 68 227	+97.69 ± 13.82	0 13 87 150 0	+213.85 ± 36.76	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 221598041 \ -pgnout ncm-dbt-20250824-1807-029.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428577	ncm-dbt-05	578547	500	209 60 231	+106.77 ± 13.06	0 6 91 151 2	+234.38 ± 35.72	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1334555737 \ -pgnout ncm-dbt-20250824-1807-028.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428576	ncm-dbt-02	585253	500	206 46 248	+115.22 ± 14.05	0 8 80 156 6	+249.64 ± 38.38	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2795855374 \ -pgnout ncm-dbt-20250824-1807-027.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428575	ncm-dbt-04	569190	500	207 54 239	+109.83 ± 13.4	0 5 92 148 5	+236.51 ± 35.43	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4267587513 \ -pgnout ncm-dbt-20250824-1807-026.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428574	ncm-dbt-01	583405	500	207 58 235	+106.77 ± 13.23	0 8 86 155 1	+236.51 ± 36.93	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1399134771 \ -pgnout ncm-dbt-20250824-1807-025.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428573	ncm-dbt-03	584622	500	212 69 219	+102.22 ± 13.37	0 8 93 147 2	+221.9 ± 35.4	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3480549483 \ -pgnout ncm-dbt-20250824-1807-024.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428572	ncm-dbt-02	586054	500	206 62 232	+102.97 ± 13.04	0 6 96 146 2	+223.94 ± 34.66	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 515034299 \ -pgnout ncm-dbt-20250824-1807-023.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428571	ncm-dbt-05	578383	500	187 57 256	+92.45 ± 13.43	0 10 101 138 1	+198.34 ± 33.9	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3349389970 \ -pgnout ncm-dbt-20250824-1807-022.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428570	ncm-dbt-01	583992	500	194 48 258	+104.49 ± 13.55	0 8 91 148 3	+226.0 ± 35.82	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1039464563 \ -pgnout ncm-dbt-20250824-1807-021.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428569	ncm-dbt-04	569509	500	198 54 248	+102.97 ± 13.54	0 10 87 152 1	+226.0 ± 36.75	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3848584075 \ -pgnout ncm-dbt-20250824-1807-020.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428568	ncm-dbt-03	579289	500	201 57 242	+102.97 ± 13.38	0 9 89 151 1	+226.0 ± 36.29	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 183095763 \ -pgnout ncm-dbt-20250824-1807-019.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428567	ncm-dbt-02	586181	500	224 60 216	+118.33 ± 13.17	0 6 77 164 3	+265.78 ± 39.12	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3841270370 \ -pgnout ncm-dbt-20250824-1807-018.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428566	ncm-dbt-05	579042	500	202 57 241	+103.73 ± 12.7	0 5 96 148 1	+228.08 ± 34.59	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3765487470 \ -pgnout ncm-dbt-20250824-1807-017.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428565	ncm-dbt-01	583866	500	222 60 218	+116.77 ± 13.36	0 5 83 157 5	+256.44 ± 37.51	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2256389068 \ -pgnout ncm-dbt-20250824-1807-016.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428564	ncm-dbt-04	568514	500	207 66 227	+100.7 ± 14.16	0 12 88 147 3	+215.85 ± 36.55	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1063753042 \ -pgnout ncm-dbt-20250824-1807-015.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428563	ncm-dbt-03	583740	500	201 53 246	+106.01 ± 14.04	1 9 83 155 2	+234.38 ± 37.67	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2608099286 \ -pgnout ncm-dbt-20250824-1807-014.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428562	ncm-dbt-02	586689	500	210 57 233	+109.83 ± 12.88	0 6 86 157 1	+245.2 ± 36.85	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2513270868 \ -pgnout ncm-dbt-20250824-1807-013.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428561	ncm-dbt-04	569390	500	203 61 236	+101.46 ± 13.2	1 4 99 144 2	+221.9 ± 33.98	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 97332345 \ -pgnout ncm-dbt-20250824-1807-012.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428560	ncm-dbt-01	582945	500	215 52 233	+117.55 ± 13.18	0 5 81 160 4	+261.07 ± 38.02	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2976553484 \ -pgnout ncm-dbt-20250824-1807-011.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428559	ncm-dbt-05	584243	500	205 67 228	+98.44 ± 13.18	0 6 103 138 3	+209.91 ± 33.29	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3062934427 \ -pgnout ncm-dbt-20250824-1807-010.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428558	ncm-dbt-03	582819	500	214 56 230	+113.68 ± 13.55	0 7 82 157 4	+249.64 ± 37.86	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 494728034 \ -pgnout ncm-dbt-20250824-1807-009.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428557	ncm-dbt-02	585674	500	191 50 259	+100.7 ± 12.86	0 5 101 142 2	+217.85 ± 33.59	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1097348431 \ -pgnout ncm-dbt-20250824-1807-008.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428556	ncm-dbt-04	567680	500	206 59 235	+105.25 ± 13.05	0 7 90 152 1	+232.26 ± 35.99	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3554138422 \ -pgnout ncm-dbt-20250824-1807-007.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428555	ncm-dbt-01	585337	500	205 55 240	+107.54 ± 12.71	0 6 88 156 0	+240.82 ± 36.39	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1186806095 \ -pgnout ncm-dbt-20250824-1807-006.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428554	ncm-dbt-05	577684	500	214 57 229	+112.91 ± 13.22	0 8 78 163 1	+254.16 ± 38.89	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4037236409 \ -pgnout ncm-dbt-20250824-1807-005.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428510	ncm-dbt-02	589283	500	203 54 243	+106.77 ± 13.72	0 10 83 155 2	+234.38 ± 37.67	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3940233571 \ -pgnout ncm-dbt-20250824-1807-004.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428509	ncm-dbt-05	580075	500	205 51 244	+110.6 ± 13.22	0 8 81 160 1	+247.41 ± 38.13	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2605829892 \ -pgnout ncm-dbt-20250824-1807-003.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428508	ncm-dbt-03	586477	500	196 61 243	+96.19 ± 14.26	0 14 89 145 2	+206.01 ± 36.33	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1624015732 \ -pgnout ncm-dbt-20250824-1807-002.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
428507	ncm-dbt-01	583447	500	205 56 239	+106.78 ± 13.39	1 5 90 152 2	+236.51 ± 35.94	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1242827240 \ -pgnout ncm-dbt-20250824-1807-001.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20250824-1807 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:39c077f15a88ff1e563971c396eb9a27b0ac6ac5 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15

Commit

Commit ID	39c077f15a88ff1e563971c396eb9a27b0ac6ac5
Author	Stefan Geschwentner
Date	2025-08-24 18:07:50 UTC
Less reduction for later threads. Give "(thread id mod 8) * 64" less reductions (up to nearly a half ply). Passed SMP STC: LLR: 2.95 (-2.94,2.94) <0.00,2.00> Total: 413176 W: 106496 L: 105666 D: 201014 Ptnml(0-2): 504, 46732, 111266, 47602, 484 https://tests.stockfishchess.org/tests/view/68a24aeeb6fb3300203bbdc4 Passed SMP LTC: LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 60420 W: 15622 L: 15268 D: 29530 Ptnml(0-2): 11, 6106, 17632, 6440, 21 https://tests.stockfishchess.org/tests/view/68a2c2ffb6fb3300203bc516 closes https://github.com/official-stockfish/Stockfish/pull/6249 No functional change