Dev Builds » 20260426-0725

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	06:40:50	583878	4000	1685 390 1925	+116.68 ± 4.68	1 43 644 1284 28	+259.91 ± 13.39
ncm-dbt-02	06:42:03	585843	4000	1712 378 1910	+120.48 ± 4.55	1 35 615 1327 22	+273.31 ± 13.7
ncm-dbt-03	06:41:50	585764	4000	1725 417 1858	+117.94 ± 4.61	0 40 638 1296 26	+264.01 ± 13.45
ncm-dbt-04	06:41:16	567448	4000	1703 398 1899	+117.65 ± 4.55	0 37 643 1298 22	+264.3 ± 13.38
ncm-dbt-05	06:42:22	583347	4000	1696 370 1934	+119.7 ± 4.65	0 37 635 1293 35	+266.67 ± 13.47
			20000	8521 1953 9526	+118.49 ± 2.06	2 192 3175 6498 133	+265.6 ± 6.02

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	PGN
466331	ncm-dbt-05	581902	500	217 45 238	+124.6 ± 12.9	0 2 80 162 6	+277.93 ± 38.02	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2951949788 \ -pgnout ncm-dbt-20260426-0725-040.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466330	ncm-dbt-04	567640	500	208 53 239	+111.37 ± 12.87	0 5 87 156 2	+247.41 ± 36.56	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1230032274 \ -pgnout ncm-dbt-20260426-0725-039.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466329	ncm-dbt-03	585295	500	210 57 233	+109.83 ± 13.05	0 5 90 152 3	+240.82 ± 35.87	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3422148069 \ -pgnout ncm-dbt-20260426-0725-038.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466328	ncm-dbt-02	588047	500	216 45 239	+123.81 ± 13.1	0 6 70 171 3	+282.94 ± 41.13	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3041497701 \ -pgnout ncm-dbt-20260426-0725-037.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466327	ncm-dbt-01	584159	500	211 48 241	+117.55 ± 13.0	0 6 77 165 2	+265.78 ± 39.12	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3415059818 \ -pgnout ncm-dbt-20260426-0725-036.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466326	ncm-dbt-04	567324	500	216 49 235	+120.67 ± 12.41	0 0 88 157 5	+268.16 ± 35.74	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 957794895 \ -pgnout ncm-dbt-20260426-0725-035.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466325	ncm-dbt-05	583154	500	209 46 245	+117.55 ± 12.64	0 3 84 160 3	+263.42 ± 37.11	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2105132771 \ -pgnout ncm-dbt-20260426-0725-034.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466324	ncm-dbt-02	583908	500	211 41 248	+123.02 ± 13.11	0 4 77 164 5	+275.45 ± 39.01	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2777658763 \ -pgnout ncm-dbt-20260426-0725-033.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466323	ncm-dbt-03	587070	500	214 58 228	+112.14 ± 13.56	0 6 87 152 5	+243.0 ± 36.62	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1780528860 \ -pgnout ncm-dbt-20260426-0725-032.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466322	ncm-dbt-01	584327	500	212 61 227	+108.3 ± 13.4	0 6 91 149 4	+234.38 ± 35.72	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 118257965 \ -pgnout ncm-dbt-20260426-0725-031.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466321	ncm-dbt-04	567047	500	217 39 244	+129.35 ± 12.21	0 3 68 177 2	+304.07 ± 41.65	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4227113368 \ -pgnout ncm-dbt-20260426-0725-030.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466320	ncm-dbt-02	582611	500	215 48 237	+120.67 ± 12.78	0 5 75 168 2	+275.45 ± 39.63	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3783212047 \ -pgnout ncm-dbt-20260426-0725-029.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466319	ncm-dbt-01	584243	500	207 45 248	+116.77 ± 12.65	0 5 79 165 1	+265.78 ± 38.54	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1144157640 \ -pgnout ncm-dbt-20260426-0725-028.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466318	ncm-dbt-03	585632	500	213 34 253	+130.14 ± 12.59	0 3 69 174 4	+301.33 ± 41.33	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1950263101 \ -pgnout ncm-dbt-20260426-0725-027.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466317	ncm-dbt-05	583950	500	198 46 256	+109.07 ± 13.73	0 7 89 149 5	+234.38 ± 36.22	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3763012538 \ -pgnout ncm-dbt-20260426-0725-026.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466316	ncm-dbt-04	567680	500	214 45 241	+122.24 ± 13.48	0 6 74 165 5	+273.0 ± 39.95	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3562350631 \ -pgnout ncm-dbt-20260426-0725-025.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466315	ncm-dbt-02	585928	500	218 52 230	+119.89 ± 12.61	0 4 78 166 2	+273.0 ± 38.74	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2377793543 \ -pgnout ncm-dbt-20260426-0725-024.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466314	ncm-dbt-03	585421	500	226 48 226	+129.35 ± 12.41	0 3 69 175 3	+301.33 ± 41.33	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3774654515 \ -pgnout ncm-dbt-20260426-0725-023.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466313	ncm-dbt-01	582152	500	204 50 246	+110.6 ± 13.39	0 7 85 155 3	+243.0 ± 37.13	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3488330673 \ -pgnout ncm-dbt-20260426-0725-022.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466312	ncm-dbt-05	581319	500	205 44 251	+116.0 ± 12.66	0 4 83 161 2	+261.07 ± 37.44	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1979988446 \ -pgnout ncm-dbt-20260426-0725-021.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466311	ncm-dbt-04	568792	500	210 50 240	+115.22 ± 13.2	0 6 81 160 3	+256.44 ± 38.07	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1170648831 \ -pgnout ncm-dbt-20260426-0725-020.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466310	ncm-dbt-02	587664	500	209 50 241	+114.45 ± 13.21	0 5 85 156 4	+251.89 ± 37.03	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2985654113 \ -pgnout ncm-dbt-20260426-0725-019.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466309	ncm-dbt-03	585928	500	211 50 239	+116.0 ± 13.2	0 6 80 161 3	+258.75 ± 38.32	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2412612274 \ -pgnout ncm-dbt-20260426-0725-018.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466308	ncm-dbt-01	582778	500	219 56 225	+117.55 ± 13.87	0 8 76 161 5	+258.75 ± 39.42	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 43084862 \ -pgnout ncm-dbt-20260426-0725-017.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466307	ncm-dbt-05	585084	500	221 47 232	+126.17 ± 13.6	0 4 76 162 8	+277.93 ± 39.29	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 253852704 \ -pgnout ncm-dbt-20260426-0725-016.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466306	ncm-dbt-04	568196	500	208 50 242	+113.68 ± 12.86	0 5 84 159 2	+254.16 ± 37.27	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2389358709 \ -pgnout ncm-dbt-20260426-0725-015.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466305	ncm-dbt-03	585506	500	216 66 218	+107.54 ± 13.06	0 7 87 155 1	+238.66 ± 36.67	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 914045438 \ -pgnout ncm-dbt-20260426-0725-014.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466304	ncm-dbt-01	583196	500	210 42 248	+121.46 ± 13.84	1 6 71 168 4	+275.45 ± 40.84	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2116007236 \ -pgnout ncm-dbt-20260426-0725-013.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466303	ncm-dbt-05	587155	500	216 51 233	+119.11 ± 12.99	0 6 75 167 2	+270.57 ± 39.67	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3766739629 \ -pgnout ncm-dbt-20260426-0725-012.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466302	ncm-dbt-02	587537	500	216 54 230	+116.77 ± 12.83	0 5 80 163 2	+263.42 ± 38.27	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 527003395 \ -pgnout ncm-dbt-20260426-0725-011.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466301	ncm-dbt-04	566217	500	216 55 229	+116.0 ± 13.02	0 6 79 163 2	+261.07 ± 38.58	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1362188919 \ -pgnout ncm-dbt-20260426-0725-010.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466300	ncm-dbt-01	584579	500	203 41 256	+116.77 ± 12.83	0 4 83 160 3	+261.07 ± 37.44	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1022250404 \ -pgnout ncm-dbt-20260426-0725-009.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466299	ncm-dbt-03	585337	500	221 46 233	+126.97 ± 13.22	0 4 73 167 6	+285.49 ± 40.16	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3332612099 \ -pgnout ncm-dbt-20260426-0725-008.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466298	ncm-dbt-05	578836	500	222 49 229	+125.38 ± 13.43	0 5 73 166 6	+280.42 ± 40.21	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2969467666 \ -pgnout ncm-dbt-20260426-0725-007.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466297	ncm-dbt-02	584916	500	217 36 247	+131.74 ± 12.34	1 1 66 180 2	+315.35 ± 42.24	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1812454042 \ -pgnout ncm-dbt-20260426-0725-006.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466296	ncm-dbt-04	566691	500	214 57 229	+112.91 ± 12.86	0 6 82 161 1	+254.16 ± 37.82	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1099511148 \ -pgnout ncm-dbt-20260426-0725-005.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466295	ncm-dbt-01	585590	500	219 47 234	+124.6 ± 12.71	0 1 82 161 6	+277.93 ± 37.36	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1360046882 \ -pgnout ncm-dbt-20260426-0725-004.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466294	ncm-dbt-03	585928	500	214 58 228	+112.14 ± 12.87	0 6 83 160 1	+251.89 ± 37.57	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2764671117 \ -pgnout ncm-dbt-20260426-0725-003.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466293	ncm-dbt-02	586139	500	210 52 238	+113.68 ± 12.86	0 5 84 159 2	+254.16 ± 37.27	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1157854460 \ -pgnout ncm-dbt-20260426-0725-002.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
466292	ncm-dbt-05	585379	500	208 42 250	+119.89 ± 13.16	0 6 75 166 3	+270.57 ± 39.67	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3867226903 \ -pgnout ncm-dbt-20260426-0725-001.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=20260426-0725 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:38d887ac644d114c242e273c9b605aca7fbb034d \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15

Commit

Commit ID	38d887ac644d114c242e273c9b605aca7fbb034d
Author	FauziAkram
Date	2026-04-26 07:25:45 UTC
Reuse Promotion Type Natively Piece promotion is generated, and then type_of(promotion) is used to retrieve the underlying type. The class Move provides .promotion_type() natively, meaning we can cache the type directly and avoid extracting it indirectly afterward. By extracting pt = m.promotion_type(); up front, we don't need to call type_of(promotion) iteratively inside the assertions or conditions below. closes https://github.com/official-stockfish/Stockfish/pull/6759 No functional change