Dev Builds » 20261028-0513

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	07:31:20	586342	4092	1895 273 1924	+145.7 ± 4.24	0 10 457 1526 53	+351.84 ± 15.9
ncm-dbt-02	07:32:00	593813	4058	1859 254 1945	+145.34 ± 4.15	0 8 450 1529 42	+354.78 ± 16.02
ncm-dbt-03	07:31:26	585968	4004	1862 250 1892	+148.27 ± 4.25	0 11 419 1521 51	+362.95 ± 16.63
ncm-dbt-04	06:42:29	571957	3990	1851 282 1857	+144.4 ± 4.51	0 18 454 1459 64	+341.55 ± 15.98
ncm-dbt-05	06:43:56	607675	3856	1786 242 1828	+147.36 ± 4.35	0 9 417 1451 51	+358.27 ± 16.65
			20000	9253 1301 9446	+146.2 ± 1.92	0 56 2197 7486 261	+353.73 ± 7.25

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	PGN
487565	ncm-dbt-03	584537	4	2 0 2	+190.27 ± 27.79	0 0 0 2 0	+1250.02 ± 712.79	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2007946222 \ -pgnout ncm-dbt-20261028-0513-043.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487564	ncm-dbt-02	593109	58	24 3 31	+131.75 ± 32.68	0 0 8 21 0	+318.31 ± 134.08	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3887353828 \ -pgnout ncm-dbt-20261028-0513-042.pgn \ -openings \ file=UHO_4060_v2.epd \ format=epd \ order=random \ -repeat \ -resign \ movecount=3 \ score=600 \ -draw \ movenumber=34 \ movecount=8 \ score=5 \ -each \ tc=30+0.3 \ timemargin=10000 \ proto=uci \ option.Hash=128 \ option.Threads=8 \ -engine \ name=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487563	ncm-dbt-01	586223	92	47 5 40	+171.23 ± 22.3	0 0 5 40 1	+496.15 ± 213.29	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1224067524 \ -pgnout ncm-dbt-20261028-0513-041.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487562	ncm-dbt-05	609701	356	157 26 173	+134.14 ± 14.11	0 1 47 128 2	+318.78 ± 50.24	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2888523364 \ -pgnout ncm-dbt-20261028-0513-040.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487561	ncm-dbt-04	569949	490	228 41 221	+139.66 ± 13.25	0 4 57 177 7	+326.19 ± 45.78	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1849152734 \ -pgnout ncm-dbt-20261028-0513-039.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487560	ncm-dbt-03	585211	500	230 32 238	+145.54 ± 12.64	0 2 56 184 8	+346.12 ± 46.15	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 115213923 \ -pgnout ncm-dbt-20261028-0513-038.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487559	ncm-dbt-02	594149	500	226 31 243	+143.07 ± 11.91	0 1 58 186 5	+346.12 ± 45.18	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 864467958 \ -pgnout ncm-dbt-20261028-0513-037.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487558	ncm-dbt-01	586604	500	230 34 236	+143.89 ± 11.65	0 1 56 189 4	+352.8 ± 46.04	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 605256649 \ -pgnout ncm-dbt-20261028-0513-036.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487557	ncm-dbt-05	601224	500	233 34 233	+146.36 ± 11.52	0 1 53 192 4	+363.2 ± 47.43	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1666772443 \ -pgnout ncm-dbt-20261028-0513-035.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487556	ncm-dbt-04	571672	500	232 30 238	+148.85 ± 11.37	0 1 50 195 4	+374.11 ± 48.94	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1561686711 \ -pgnout ncm-dbt-20261028-0513-034.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487555	ncm-dbt-03	585801	500	235 29 236	+152.18 ± 11.4	0 1 47 197 5	+385.59 ± 50.59	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1588494280 \ -pgnout ncm-dbt-20261028-0513-033.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487554	ncm-dbt-02	593369	500	228 34 238	+142.25 ± 11.73	0 0 61 184 5	+342.85 ± 43.79	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3100997916 \ -pgnout ncm-dbt-20261028-0513-032.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487553	ncm-dbt-01	585717	500	226 35 239	+139.81 ± 12.26	0 1 63 180 6	+330.23 ± 43.2	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2904025415 \ -pgnout ncm-dbt-20261028-0513-031.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487552	ncm-dbt-05	605117	500	226 28 246	+145.54 ± 12.22	0 1 57 185 7	+349.43 ± 45.6	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1859521017 \ -pgnout ncm-dbt-20261028-0513-030.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487551	ncm-dbt-04	572114	500	230 28 242	+148.85 ± 13.11	0 2 55 182 11	+349.43 ± 46.59	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 720504588 \ -pgnout ncm-dbt-20261028-0513-029.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487550	ncm-dbt-03	586646	500	239 28 233	+156.38 ± 12.06	0 0 49 191 10	+385.59 ± 49.31	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3800741691 \ -pgnout ncm-dbt-20261028-0513-028.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487549	ncm-dbt-02	594280	500	232 27 241	+151.34 ± 11.91	0 1 50 192 7	+374.11 ± 48.94	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3296824005 \ -pgnout ncm-dbt-20261028-0513-027.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487548	ncm-dbt-01	585126	500	232 42 226	+138.99 ± 11.88	0 1 62 183 4	+333.32 ± 43.57	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3614286349 \ -pgnout ncm-dbt-20261028-0513-026.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487547	ncm-dbt-05	604038	500	223 28 249	+143.07 ± 11.69	0 0 60 185 5	+346.11 ± 44.19	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 858552975 \ -pgnout ncm-dbt-20261028-0513-025.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487546	ncm-dbt-04	570669	500	227 39 234	+137.37 ± 12.96	0 3 63 177 7	+318.25 ± 43.39	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2720776058 \ -pgnout ncm-dbt-20261028-0513-024.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487545	ncm-dbt-03	583196	500	239 44 217	+143.07 ± 12.34	0 1 60 182 7	+339.63 ± 44.35	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 348505217 \ -pgnout ncm-dbt-20261028-0513-023.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487544	ncm-dbt-02	595411	500	221 34 245	+136.56 ± 12.39	0 1 67 176 6	+318.25 ± 41.77	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3247476890 \ -pgnout ncm-dbt-20261028-0513-022.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487543	ncm-dbt-01	586308	500	244 30 226	+158.93 ± 12.58	0 1 46 191 12	+389.56 ± 51.18	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2679609897 \ -pgnout ncm-dbt-20261028-0513-021.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487542	ncm-dbt-05	602427	500	242 36 222	+152.18 ± 13.16	0 4 46 190 10	+366.78 ± 51.18	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3276477272 \ -pgnout ncm-dbt-20261028-0513-020.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487541	ncm-dbt-03	585590	500	225 32 243	+141.44 ± 12.41	0 3 56 186 5	+339.63 ± 46.2	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1039277513 \ -pgnout ncm-dbt-20261028-0513-019.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487540	ncm-dbt-04	572638	500	237 30 233	+153.02 ± 12.91	0 3 47 190 10	+370.41 ± 50.67	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2160558426 \ -pgnout ncm-dbt-20261028-0513-018.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487539	ncm-dbt-02	591771	500	228 32 240	+143.89 ± 12.3	0 1 59 183 7	+342.85 ± 44.76	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1645152047 \ -pgnout ncm-dbt-20261028-0513-017.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487538	ncm-dbt-01	586181	500	228 23 249	+151.34 ± 11.69	0 0 52 191 7	+374.1 ± 47.75	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3344545886 \ -pgnout ncm-dbt-20261028-0513-016.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487537	ncm-dbt-05	604892	500	238 25 237	+158.08 ± 11.48	0 0 45 197 8	+401.91 ± 51.63	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1352329024 \ -pgnout ncm-dbt-20261028-0513-015.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487536	ncm-dbt-04	571712	500	231 38 231	+141.44 ± 13.4	0 4 58 179 9	+327.18 ± 45.37	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2088158547 \ -pgnout ncm-dbt-20261028-0513-014.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487535	ncm-dbt-03	587155	500	230 30 240	+147.19 ± 11.7	0 2 50 194 4	+366.78 ± 49.02	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3765946153 \ -pgnout ncm-dbt-20261028-0513-013.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487534	ncm-dbt-02	593152	500	230 29 241	+148.02 ± 12.32	0 3 49 192 6	+363.2 ± 49.57	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 944743750 \ -pgnout ncm-dbt-20261028-0513-012.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487533	ncm-dbt-01	585337	500	226 32 242	+142.25 ± 12.58	0 3 56 185 6	+339.63 ± 46.2	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2099252811 \ -pgnout ncm-dbt-20261028-0513-011.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487532	ncm-dbt-05	603500	500	234 34 232	+147.19 ± 12.36	0 2 53 188 7	+356.21 ± 47.52	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 848956303 \ -pgnout ncm-dbt-20261028-0513-010.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487531	ncm-dbt-04	571551	500	241 33 226	+153.86 ± 11.76	0 0 50 192 8	+381.69 ± 48.77	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2817162010 \ -pgnout ncm-dbt-20261028-0513-009.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487530	ncm-dbt-03	587367	500	230 29 241	+148.02 ± 12.1	0 1 54 188 7	+359.68 ± 46.95	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 838374836 \ -pgnout ncm-dbt-20261028-0513-008.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487529	ncm-dbt-02	593759	500	242 32 226	+155.54 ± 11.17	0 1 43 201 5	+401.92 ± 53.07	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 291761925 \ -pgnout ncm-dbt-20261028-0513-007.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487528	ncm-dbt-01	586985	500	233 39 228	+142.25 ± 12.37	0 2 58 184 6	+339.63 ± 45.29	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 4478232 \ -pgnout ncm-dbt-20261028-0513-006.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487527	ncm-dbt-05	630506	500	233 31 236	+148.84 ± 12.05	0 0 56 186 8	+359.67 ± 45.87	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2804264766 \ -pgnout ncm-dbt-20261028-0513-005.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487526	ncm-dbt-04	575354	500	225 43 232	+132.54 ± 12.91	0 1 74 167 8	+298.62 ± 39.56	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1608789625 \ -pgnout ncm-dbt-20261028-0513-004.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487525	ncm-dbt-03	588217	500	232 26 242	+152.18 ± 11.4	0 1 47 197 5	+385.59 ± 50.59	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3682995320 \ -pgnout ncm-dbt-20261028-0513-003.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487524	ncm-dbt-02	595324	500	228 32 240	+143.89 ± 10.72	0 0 55 194 1	+363.19 ± 46.32	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1294033464 \ -pgnout ncm-dbt-20261028-0513-002.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487523	ncm-dbt-01	588600	500	229 33 238	+143.89 ± 12.3	0 1 59 183 7	+342.85 ± 44.76	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3683577853 \ -pgnout ncm-dbt-20261028-0513-001.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=20261028-0513 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:61c68717855b03f535ccae33a3920ed83caa0762 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15

Commit

Commit ID	61c68717855b03f535ccae33a3920ed83caa0762
Author	Zero22-Cap
Date	2026-10-28 05:13:02 UTC
Reduce null move pruning one ply less in odd threads Threads with an odd index use a null move reduction that is one ply smaller, so half of the threads verify null move cutoffs more carefully. Passed SMP STC: https://tests.stockfishchess.org/tests/view/6ac8bd225349156614d940fb LLR: 2.94 (-2.94,2.94) <0.00,2.00> Total: 279256 W: 71709 L: 71076 D: 136471 Ptnml(0-2): 284, 30895, 76665, 31472, 312 Passed SMP LTC: https://tests.stockfishchess.org/tests/view/6ad093f0733e627f7058c29d LLR: 2.95 (-2.94,2.94) <0.50,2.50> Total: 328158 W: 85355 L: 84497 D: 158306 Ptnml(0-2): 78, 31716, 99656, 32528, 101 No functional change for a single thread. closes https://github.com/official-stockfish/Stockfish/pull/7264 No functional change