Dev Builds » 20260703-1826

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	03:13:50	582988	1922	853 175 894	+128.06 ± 6.65	0 14 276 650 21	+290.44 ± 20.49
ncm-dbt-02	03:14:32	590568	1922	881 147 894	+139.76 ± 6.36	0 13 219 711 18	+334.15 ± 23.09
ncm-dbt-03	03:14:59	583261	1932	869 153 910	+135.19 ± 6.37	0 9 252 685 20	+315.71 ± 21.44
ncm-dbt-04	03:13:36	568116	1906	850 145 911	+134.9 ± 6.3	0 7 251 678 17	+316.75 ± 21.45
ncm-dbt-05	03:14:40	581164	1916	847 137 932	+135.18 ± 6.62	0 14 243 678 23	+313.28 ± 21.89
			9598	4300 757 4541	+134.61 ± 2.89	0 57 1241 3402 99	+313.66 ± 9.65

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	PGN
476883	ncm-dbt-04	568673	406	177 23 206	+138.71 ± 13.47	0 3 45 153 2	+337.06 ± 51.76
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 921084983 \ -pgnout ncm-dbt-20260703-1826-020.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476882	ncm-dbt-01	581652	422	179 49 194	+110.62 ± 14.26	0 3 79 125 4	+239.28 ± 38.1
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3013345542 \ -pgnout ncm-dbt-20260703-1826-019.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476881	ncm-dbt-02	591340	422	196 41 185	+133.86 ± 15.07	0 7 47 152 5	+308.87 ± 50.29
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3168630644 \ -pgnout ncm-dbt-20260703-1826-018.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476880	ncm-dbt-05	580406	416	193 29 194	+144.81 ± 14.08	0 2 47 152 7	+341.89 ± 50.55
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1681775014 \ -pgnout ncm-dbt-20260703-1826-017.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476879	ncm-dbt-03	584076	432	194 39 199	+130.46 ± 14.46	0 5 56 150 5	+297.57 ± 46.15
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 90973472 \ -pgnout ncm-dbt-20260703-1826-016.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476878	ncm-dbt-05	580904	500	218 32 250	+135.76 ± 12.21	0 2 64 180 4	+321.19 ± 42.95	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2148298582 \ -pgnout ncm-dbt-20260703-1826-015.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476877	ncm-dbt-04	568116	500	220 51 229	+122.24 ± 11.99	0 1 81 166 2	+280.42 ± 37.62	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2598791721 \ -pgnout ncm-dbt-20260703-1826-014.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476876	ncm-dbt-02	589027	500	230 40 230	+138.99 ± 12.3	0 1 64 179 6	+327.18 ± 42.83	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2843350726 \ -pgnout ncm-dbt-20260703-1826-013.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476875	ncm-dbt-01	584369	500	229 44 227	+134.95 ± 13.03	0 4 63 177 6	+312.48 ± 43.44	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 414292467 \ -pgnout ncm-dbt-20260703-1826-012.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476874	ncm-dbt-03	585000	500	225 39 236	+135.75 ± 11.58	0 0 67 180 3	+324.16 ± 41.61	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1093796202 \ -pgnout ncm-dbt-20260703-1826-011.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476873	ncm-dbt-01	583656	500	220 45 235	+126.97 ± 13.41	0 3 77 162 8	+280.42 ± 38.93	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 649252869 \ -pgnout ncm-dbt-20260703-1826-010.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476872	ncm-dbt-04	567482	500	222 30 248	+140.62 ± 12.02	0 0 64 180 6	+333.32 ± 42.66	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1784883270 \ -pgnout ncm-dbt-20260703-1826-009.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476871	ncm-dbt-02	590782	500	233 37 230	+143.89 ± 11.19	0 1 54 193 2	+359.68 ± 46.95	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4235316695 \ -pgnout ncm-dbt-20260703-1826-008.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476870	ncm-dbt-05	582235	500	216 44 240	+124.6 ± 13.8	0 7 70 167 6	+277.93 ± 41.14	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 787142472 \ -pgnout ncm-dbt-20260703-1826-007.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476869	ncm-dbt-03	582360	500	225 38 237	+136.56 ± 12.18	0 1 66 178 5	+321.19 ± 42.12	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3732182331 \ -pgnout ncm-dbt-20260703-1826-006.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476868	ncm-dbt-01	582277	500	225 37 238	+137.37 ± 12.36	0 4 57 186 3	+330.23 ± 45.79	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2210097653 \ -pgnout ncm-dbt-20260703-1826-005.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476867	ncm-dbt-04	568196	500	231 41 228	+138.99 ± 12.9	0 3 61 179 7	+324.17 ± 44.15	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4114015265 \ -pgnout ncm-dbt-20260703-1826-004.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476866	ncm-dbt-05	581111	500	220 32 248	+137.37 ± 12.76	0 3 62 179 6	+321.19 ± 43.77	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2894112156 \ -pgnout ncm-dbt-20260703-1826-003.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476865	ncm-dbt-02	591125	500	222 29 249	+141.44 ± 12.61	0 4 54 187 5	+339.63 ± 47.1	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3503025755 \ -pgnout ncm-dbt-20260703-1826-002.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
476864	ncm-dbt-03	581610	500	225 37 238	+137.37 ± 12.96	0 3 63 177 7	+318.25 ± 43.39	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 917322943 \ -pgnout ncm-dbt-20260703-1826-001.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=20260703-1826 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:46428b93461ee0c0e9e76f27866ddf502372d62a \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15

Commit

Commit ID	46428b93461ee0c0e9e76f27866ddf502372d62a
Author	MFW
Date	2026-07-03 18:26:34 UTC
Allow cross-compilation of Android version on Mac When compiling for Android (COMP=ndk) on macOS, the build fails because the NDK's LLVM toolchain does not recognize the macOS-specific flags -mdynamic-no-pic and -mmacosx-version-min. This PR wraps these flags with ifneq ($(COMP),ndk) condition to skip them during Android cross-compilation. Please squash and merge this PR. closes https://github.com/official-stockfish/Stockfish/pull/6927 No functional change