Dev Builds » 20260228-1110

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	06:42:13	583559	4000	1733 380 1887	+122.34 ± 4.57	0 34 609 1327 30	+276.38 ± 13.77
ncm-dbt-02	06:42:43	586464	3998	1745 379 1874	+123.68 ± 4.51	0 34 588 1354 23	+282.84 ± 14.02
ncm-dbt-03	06:42:53	584207	4002	1751 375 1876	+124.53 ± 4.48	0 28 596 1350 27	+284.32 ± 13.9
ncm-dbt-04	06:39:55	567437	4000	1720 379 1901	+121.16 ± 4.64	1 35 620 1310 34	+271.78 ± 13.64
ncm-dbt-05	06:42:52	583810	4000	1774 358 1868	+128.55 ± 4.59	0 35 550 1379 36	+294.61 ± 14.52
			20000	8723 1871 9406	+124.05 ± 2.04	1 166 2963 6720 150	+281.87 ± 6.24

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	PGN
457168	ncm-dbt-03	583614	2	1 0 1	+189.7 ± 55.98	0 0 0 1 0	+1129.65 ± 376.02	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3761194694 \ -pgnout ncm-dbt-20260228-1110-041.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457167	ncm-dbt-05	594627	500	228 46 226	+132.54 ± 12.91	0 7 56 185 2	+315.35 ± 46.07	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3948285343 \ -pgnout ncm-dbt-20260228-1110-040.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457166	ncm-dbt-02	585253	498	214 45 239	+122.77 ± 12.01	0 0 83 163 3	+279.58 ± 36.94	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 456379105 \ -pgnout ncm-dbt-20260228-1110-039.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457165	ncm-dbt-01	584706	500	213 50 237	+117.55 ± 13.0	0 6 77 165 2	+265.78 ± 39.12	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3356746652 \ -pgnout ncm-dbt-20260228-1110-038.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457164	ncm-dbt-04	568633	500	218 48 234	+123.02 ± 13.29	0 3 81 159 7	+270.57 ± 37.86	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3855678223 \ -pgnout ncm-dbt-20260228-1110-037.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457163	ncm-dbt-03	583531	500	223 51 226	+124.6 ± 12.33	0 2 77 168 3	+285.49 ± 38.83	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2389378953 \ -pgnout ncm-dbt-20260228-1110-036.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457162	ncm-dbt-05	583866	500	211 38 251	+125.38 ± 12.89	0 5 70 172 3	+288.06 ± 41.11	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3384852853 \ -pgnout ncm-dbt-20260228-1110-035.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457161	ncm-dbt-02	585885	500	221 55 224	+119.89 ± 12.61	0 3 81 163 3	+270.57 ± 37.86	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 160410374 \ -pgnout ncm-dbt-20260228-1110-034.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457160	ncm-dbt-01	581735	500	221 50 229	+123.81 ± 12.73	0 4 74 169 3	+282.94 ± 39.86	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3261265389 \ -pgnout ncm-dbt-20260228-1110-033.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457159	ncm-dbt-04	564487	500	217 49 234	+121.45 ± 12.77	0 3 80 163 4	+273.0 ± 38.12	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 573258650 \ -pgnout ncm-dbt-20260228-1110-032.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457158	ncm-dbt-03	585970	500	212 45 243	+120.67 ± 13.67	0 7 74 164 5	+268.17 ± 39.97	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 497039559 \ -pgnout ncm-dbt-20260228-1110-031.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457157	ncm-dbt-05	583363	500	226 48 226	+129.35 ± 13.36	0 3 74 165 8	+288.06 ± 39.79	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 620686726 \ -pgnout ncm-dbt-20260228-1110-030.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457156	ncm-dbt-02	586477	500	213 46 241	+120.67 ± 12.78	0 6 72 171 1	+277.93 ± 40.53	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 103048313 \ -pgnout ncm-dbt-20260228-1110-029.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457155	ncm-dbt-04	567007	500	225 41 234	+134.15 ± 13.05	0 3 67 173 7	+306.84 ± 41.99	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 65200183 \ -pgnout ncm-dbt-20260228-1110-028.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457154	ncm-dbt-01	583489	500	208 54 238	+110.6 ± 13.73	0 6 90 148 6	+236.51 ± 35.94	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3302663622 \ -pgnout ncm-dbt-20260228-1110-027.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457153	ncm-dbt-03	583992	500	228 50 222	+129.35 ± 12.41	0 2 72 172 4	+298.62 ± 40.29	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2900994092 \ -pgnout ncm-dbt-20260228-1110-026.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457152	ncm-dbt-04	570228	500	222 45 233	+128.55 ± 12.63	0 3 71 172 4	+295.94 ± 40.69	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3366637436 \ -pgnout ncm-dbt-20260228-1110-025.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457151	ncm-dbt-02	583992	500	222 42 236	+130.94 ± 12.17	0 3 66 179 2	+309.64 ± 42.33	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2433694595 \ -pgnout ncm-dbt-20260228-1110-024.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457150	ncm-dbt-05	576333	500	213 53 234	+115.22 ± 13.72	0 7 81 157 5	+251.89 ± 38.11	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1996192146 \ -pgnout ncm-dbt-20260228-1110-023.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457149	ncm-dbt-01	584622	500	218 58 224	+115.22 ± 12.67	0 2 90 154 4	+254.16 ± 35.58	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3061285614 \ -pgnout ncm-dbt-20260228-1110-022.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457148	ncm-dbt-03	583908	500	219 46 235	+125.38 ± 12.51	0 2 77 167 4	+285.49 ± 38.83	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1321515811 \ -pgnout ncm-dbt-20260228-1110-021.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457147	ncm-dbt-04	563080	500	213 57 230	+112.14 ± 13.73	1 6 82 158 3	+249.64 ± 37.86	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1741245099 \ -pgnout ncm-dbt-20260228-1110-020.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457146	ncm-dbt-05	583363	500	227 39 234	+137.37 ± 12.96	0 3 63 177 7	+318.25 ± 43.39	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4049179809 \ -pgnout ncm-dbt-20260228-1110-019.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457145	ncm-dbt-02	586901	500	219 46 235	+125.38 ± 13.07	0 6 68 173 3	+288.06 ± 41.76	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3099204376 \ -pgnout ncm-dbt-20260228-1110-018.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457144	ncm-dbt-01	582027	500	221 50 229	+123.81 ± 13.28	0 5 74 166 5	+277.93 ± 39.92	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4085297355 \ -pgnout ncm-dbt-20260228-1110-017.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457143	ncm-dbt-03	583572	500	223 45 232	+129.35 ± 12.99	0 3 72 169 6	+293.29 ± 40.39	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 242518300 \ -pgnout ncm-dbt-20260228-1110-016.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457142	ncm-dbt-04	568951	500	206 39 255	+120.67 ± 12.6	0 4 77 167 2	+275.45 ± 39.01	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1004705606 \ -pgnout ncm-dbt-20260228-1110-015.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457141	ncm-dbt-05	580821	500	227 56 217	+123.81 ± 13.1	0 4 76 165 5	+277.93 ± 39.29	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 104270142 \ -pgnout ncm-dbt-20260228-1110-014.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457140	ncm-dbt-02	587240	500	217 46 237	+123.81 ± 12.73	0 3 77 166 4	+280.42 ± 38.93	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1632116833 \ -pgnout ncm-dbt-20260228-1110-013.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457139	ncm-dbt-01	583531	500	223 38 239	+134.95 ± 12.04	0 2 64 181 3	+321.19 ± 42.95	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2099631319 \ -pgnout ncm-dbt-20260228-1110-012.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457138	ncm-dbt-03	584916	500	215 48 237	+120.67 ± 13.15	0 6 74 167 3	+273.0 ± 39.95	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2410307942 \ -pgnout ncm-dbt-20260228-1110-011.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457137	ncm-dbt-04	567442	500	213 52 235	+116.0 ± 13.2	0 5 83 158 4	+256.44 ± 37.51	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 842803440 \ -pgnout ncm-dbt-20260228-1110-010.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457136	ncm-dbt-02	587452	500	220 49 231	+123.81 ± 13.46	0 6 72 167 5	+277.93 ± 40.53	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2992164020 \ -pgnout ncm-dbt-20260228-1110-009.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457135	ncm-dbt-01	583112	500	222 37 241	+134.95 ± 12.04	0 2 64 181 3	+321.19 ± 42.95	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 575058863 \ -pgnout ncm-dbt-20260228-1110-008.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457134	ncm-dbt-05	582819	500	221 40 239	+131.74 ± 12.34	0 3 66 178 3	+309.64 ± 42.33	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 926306590 \ -pgnout ncm-dbt-20260228-1110-007.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457133	ncm-dbt-03	584034	500	210 42 248	+121.45 ± 12.77	0 5 74 169 2	+277.93 ± 39.92	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1531927257 \ -pgnout ncm-dbt-20260228-1110-006.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457132	ncm-dbt-04	569669	500	206 48 246	+113.68 ± 13.55	0 8 79 160 3	+251.89 ± 38.63	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2491303880 \ -pgnout ncm-dbt-20260228-1110-005.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457131	ncm-dbt-02	588515	500	219 50 231	+122.24 ± 13.12	0 7 69 172 2	+280.42 ± 41.44	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2228953298 \ -pgnout ncm-dbt-20260228-1110-004.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457130	ncm-dbt-01	585253	500	207 43 250	+118.33 ± 13.52	0 7 76 163 4	+263.42 ± 39.41	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2056171466 \ -pgnout ncm-dbt-20260228-1110-003.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457129	ncm-dbt-05	585295	500	221 38 241	+133.34 ± 12.29	0 3 64 180 3	+315.35 ± 43.03	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2725142756 \ -pgnout ncm-dbt-20260228-1110-002.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
457128	ncm-dbt-03	584327	500	220 48 232	+124.6 ± 11.53	0 1 76 173 0	+293.29 ± 38.98	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2493205866 \ -pgnout ncm-dbt-20260228-1110-001.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=20260228-1110 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:702d4b8c9d70fc609b27a2816817ed4dda56dae9 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15

Commit

Commit ID	702d4b8c9d70fc609b27a2816817ed4dda56dae9
Author	maximmasiutin
Date	2026-02-28 11:10:50 UTC
Simplify attackers_to_exist function test based on #6586 by maximmasiutin https://tests.stockfishchess.org/tests/view/69977d58e2562aa5bc1e09c4 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 225056 W: 58208 L: 58195 D: 108653 Ptnml(0-2): 677, 25001, 61196, 24940, 714 closes https://github.com/official-stockfish/Stockfish/pull/6633 No functional change