Dev Builds » 20261024-1814

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	07:31:31	586959	4014	1864 263 1887	+146.72 ± 4.22	0 9 436 1514 48	+357.76 ± 16.28
ncm-dbt-02	06:42:56	591757	4000	1832 268 1900	+143.48 ± 4.27	1 13 446 1501 39	+348.6 ± 16.12
ncm-dbt-03	06:43:08	586391	4000	1832 259 1909	+144.41 ± 4.28	0 15 440 1502 43	+350.27 ± 16.23
ncm-dbt-04	06:42:52	571567	4000	1847 280 1873	+143.79 ± 4.3	0 13 453 1488 46	+346.53 ± 15.98
ncm-dbt-05	06:44:30	606533	3986	1865 259 1862	+148.4 ± 4.29	0 7 431 1497 58	+360.31 ± 16.37
			20000	9240 1329 9431	+145.35 ± 1.91	1 57 2206 7502 234	+352.63 ± 7.23

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	PGN
487108	ncm-dbt-01	588260	14	7 1 6	+159.07 ± 56.3	0 0 1 6 0	+445.23 ± 880.35	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1210148891 \ -pgnout ncm-dbt-20261024-1814-041.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487107	ncm-dbt-05	619457	486	224 29 233	+147.7 ± 11.64	0 0 53 185 5	+364.88 ± 47.23	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3727719208 \ -pgnout ncm-dbt-20261024-1814-040.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487106	ncm-dbt-02	594280	500	231 44 225	+136.56 ± 12.18	0 1 66 178 5	+321.19 ± 42.12	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3521675441 \ -pgnout ncm-dbt-20261024-1814-039.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487105	ncm-dbt-03	588302	500	230 36 234	+142.25 ± 12.98	0 4 55 184 7	+336.46 ± 46.65	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 4216032873 \ -pgnout ncm-dbt-20261024-1814-038.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487104	ncm-dbt-04	573973	500	227 35 238	+140.62 ± 11.14	0 1 57 191 1	+349.43 ± 45.6	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 342808718 \ -pgnout ncm-dbt-20261024-1814-037.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487103	ncm-dbt-01	586816	500	244 31 225	+158.08 ± 12.63	0 2 44 193 11	+389.56 ± 52.48	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1476490308 \ -pgnout ncm-dbt-20261024-1814-036.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487102	ncm-dbt-05	606698	500	238 34 228	+150.51 ± 11.96	0 2 48 194 6	+374.11 ± 50.1	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1037359058 \ -pgnout ncm-dbt-20261024-1814-035.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487101	ncm-dbt-02	592677	500	238 35 227	+149.68 ± 12.01	0 3 46 196 5	+374.11 ± 51.25	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2503545733 \ -pgnout ncm-dbt-20261024-1814-034.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487100	ncm-dbt-03	584159	500	233 37 230	+143.89 ± 12.09	0 1 58 185 6	+346.12 ± 45.18	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2393875584 \ -pgnout ncm-dbt-20261024-1814-033.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487099	ncm-dbt-01	585928	500	241 30 229	+156.39 ± 12.06	0 1 46 194 9	+389.56 ± 51.18	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 571463493 \ -pgnout ncm-dbt-20261024-1814-032.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487098	ncm-dbt-04	571070	500	218 30 252	+137.37 ± 12.15	0 2 62 182 4	+327.18 ± 43.69	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3284956404 \ -pgnout ncm-dbt-20261024-1814-031.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487097	ncm-dbt-05	607695	500	228 30 242	+145.54 ± 12.22	0 2 54 188 6	+352.8 ± 47.05	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 200879074 \ -pgnout ncm-dbt-20261024-1814-030.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487096	ncm-dbt-02	590181	500	216 33 251	+133.34 ± 11.88	0 1 68 178 3	+315.35 ± 41.44	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1478503109 \ -pgnout ncm-dbt-20261024-1814-029.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487095	ncm-dbt-03	586689	500	229 27 244	+148.85 ± 12.27	0 4 45 196 5	+370.41 ± 51.77	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2476601311 \ -pgnout ncm-dbt-20261024-1814-028.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487094	ncm-dbt-01	588217	500	223 31 246	+140.62 ± 11.14	0 1 57 191 1	+349.43 ± 45.6	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 453571144 \ -pgnout ncm-dbt-20261024-1814-027.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487093	ncm-dbt-04	572155	500	237 38 225	+146.36 ± 13.02	0 3 54 184 9	+346.12 ± 47.1	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3604756453 \ -pgnout ncm-dbt-20261024-1814-026.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487092	ncm-dbt-05	602337	500	240 30 230	+155.54 ± 12.78	0 1 50 187 12	+374.11 ± 48.94	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 898710063 \ -pgnout ncm-dbt-20261024-1814-025.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487091	ncm-dbt-02	592720	500	236 33 231	+149.68 ± 13.27	1 1 52 186 10	+359.68 ± 48.01	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3459896142 \ -pgnout ncm-dbt-20261024-1814-024.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487090	ncm-dbt-03	587537	500	227 34 239	+141.44 ± 11.32	0 1 57 190 2	+349.43 ± 45.6	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1192242057 \ -pgnout ncm-dbt-20261024-1814-023.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487089	ncm-dbt-01	585717	500	238 39 223	+146.36 ± 12.81	0 1 59 180 10	+342.85 ± 44.76	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 298473576 \ -pgnout ncm-dbt-20261024-1814-022.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487088	ncm-dbt-04	569949	500	235 27 238	+153.86 ± 11.76	0 0 50 192 8	+381.69 ± 48.77	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 296242755 \ -pgnout ncm-dbt-20261024-1814-021.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487087	ncm-dbt-05	606290	500	230 34 236	+143.89 ± 13.12	0 1 63 175 11	+330.23 ± 43.2	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2887169678 \ -pgnout ncm-dbt-20261024-1814-020.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487086	ncm-dbt-02	586774	500	229 23 248	+152.18 ± 11.64	0 2 45 198 5	+385.59 ± 51.85	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3374130980 \ -pgnout ncm-dbt-20261024-1814-019.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487085	ncm-dbt-04	571511	500	234 40 226	+142.25 ± 11.73	0 1 58 187 4	+346.12 ± 45.18	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 30672483 \ -pgnout ncm-dbt-20261024-1814-018.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487084	ncm-dbt-03	583824	500	230 30 240	+147.19 ± 12.36	0 2 53 188 7	+356.21 ± 47.52	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3381074981 \ -pgnout ncm-dbt-20261024-1814-017.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487083	ncm-dbt-01	586858	500	230 33 237	+144.71 ± 11.83	0 1 56 188 5	+352.8 ± 46.04	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2200596286 \ -pgnout ncm-dbt-20261024-1814-016.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487082	ncm-dbt-05	603993	500	236 38 226	+145.54 ± 11.79	0 1 55 189 5	+356.21 ± 46.49	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 368769278 \ -pgnout ncm-dbt-20261024-1814-015.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487081	ncm-dbt-02	592590	500	222 40 238	+132.54 ± 12.32	0 3 65 179 3	+312.48 ± 42.67	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3326325519 \ -pgnout ncm-dbt-20261024-1814-014.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487080	ncm-dbt-04	568077	500	231 43 226	+137.37 ± 11.73	0 0 66 180 4	+327.17 ± 41.95	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2061840624 \ -pgnout ncm-dbt-20261024-1814-013.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487079	ncm-dbt-03	587707	500	224 34 242	+138.99 ± 12.09	0 2 60 184 4	+333.32 ± 44.47	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3746281439 \ -pgnout ncm-dbt-20261024-1814-012.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487078	ncm-dbt-01	585970	500	231 31 238	+147.19 ± 11.47	0 0 55 190 5	+363.19 ± 46.32	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3819005393 \ -pgnout ncm-dbt-20261024-1814-011.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487077	ncm-dbt-05	604262	500	233 32 235	+148.01 ± 11.19	0 0 53 193 4	+370.41 ± 47.26	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2101982359 \ -pgnout ncm-dbt-20261024-1814-010.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487076	ncm-dbt-04	571873	500	223 24 253	+146.36 ± 11.96	0 2 52 191 5	+359.68 ± 48.01	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1215351339 \ -pgnout ncm-dbt-20261024-1814-009.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487075	ncm-dbt-03	586646	500	229 30 241	+146.36 ± 12.4	0 0 60 181 9	+346.11 ± 44.19	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 108883751 \ -pgnout ncm-dbt-20261024-1814-008.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487074	ncm-dbt-02	592245	500	228 32 240	+143.89 ± 11.42	0 1 55 191 3	+356.21 ± 46.49	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1573804367 \ -pgnout ncm-dbt-20261024-1814-007.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487073	ncm-dbt-01	586223	500	229 37 234	+140.62 ± 12.02	0 2 58 186 4	+339.63 ± 45.29	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2114160005 \ -pgnout ncm-dbt-20261024-1814-006.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487072	ncm-dbt-05	601535	500	236 32 232	+150.51 ± 12.18	0 0 55 186 9	+363.19 ± 46.32	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1527801887 \ -pgnout ncm-dbt-20261024-1814-005.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487071	ncm-dbt-04	573932	500	242 43 215	+146.36 ± 13.61	0 4 54 181 11	+339.63 ± 47.1	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 812713139 \ -pgnout ncm-dbt-20261024-1814-004.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487070	ncm-dbt-03	586266	500	230 31 239	+146.36 ± 11.29	0 1 52 194 3	+366.78 ± 47.92	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 611194476 \ -pgnout ncm-dbt-20261024-1814-003.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487069	ncm-dbt-02	592590	500	232 28 240	+150.51 ± 11.51	0 1 49 195 5	+377.87 ± 49.47	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1759858044 \ -pgnout ncm-dbt-20261024-1814-002.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487068	ncm-dbt-01	588643	500	221 30 249	+139.81 ± 11.62	0 1 60 186 3	+339.63 ± 44.35	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1153209054 \ -pgnout ncm-dbt-20261024-1814-001.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=20261024-1814 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:dbe600b7438662e9ade60b31fa0625259dcd0077 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15

Commit

Commit ID	dbe600b7438662e9ade60b31fa0625259dcd0077
Author	xiangqishare
Date	2026-10-24 18:14:41 UTC
Unroll NNUE feature updates Clang 23.1.4 leaves the fixed-size loops in `apply_feature_single()` and `apply_feature_pair()` rolled for `x86-64-avx512` and `x86-64-vnni512`. Since `Tile` is passed and returned by value, this causes repeated 1 KiB stack copies during feature updates, including with PGO. Request full unrolling with `#pragma clang loop unroll(full)` for Clang and `#pragma GCC unroll(Tiling::NumRegs / 2)` for GCC, without an AVX512-specific guard. Clang needs its own spelling because Clang 11 does not recognize `#pragma GCC unroll`. The initial Clang-only patch improved NPS by about 41% in a short local non-PGO test on Linux with a Xeon Platinum 8573C, Clang 23.1.4 (`7a941dfb2877`) and full LTO: three alternating before/after pairs, one pinned thread, 256 MiB hash, and four positions at 1M nodes each. No Fishtest run yet. Compatibility checks, all with `-Werror`: \| Compiler \| Targets and checks \| \|---\|---\| \| GCC 9.3 \| AVX2 and AVX512 accumulator compilation \| \| Clang 11.1 \| AVX2 full LTO build; SSE4.1, AVX2 and AVX512 accumulator compilation; AVX2 unoptimized debug accumulator \| \| GCC 13.3 \| AVX2 and AVX512 accumulator objects unchanged \| \| Clang 20.1.2 \| AVX2 and AVX512 accumulator objects unchanged \| \| Clang 23.1.5 \| SSE4.1, AVX2, AVX512 and VNNI512 accumulator objects unchanged; AVX512 full LTO binary unchanged \| “Unchanged” means byte-for-byte identical to the previous PR revision (`b63a546`). Both full builds retain bench `1559611` and identical scores, PVs and node counts across all 51 default positions at 20k nodes. These compatibility checks are not new speed measurements. Prepared with assistance from OpenAI Codex. closes https://github.com/official-stockfish/Stockfish/pull/7251 No functional change