Dev Builds » 20261025-2013

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	07:32:16	585922	4016	1845 272 1899	+143.76 ± 4.27	0 16 444 1507 41	+348.56 ± 16.16
ncm-dbt-02	06:43:36	605393	4000	1854 270 1876	+145.54 ± 4.29	0 11 444 1495 50	+351.95 ± 16.14
ncm-dbt-03	06:44:54	586456	4000	1819 289 1892	+140.01 ± 4.3	1 14 475 1474 36	+336.06 ± 15.6
ncm-dbt-04	06:44:21	571363	4000	1839 237 1924	+147.4 ± 4.18	0 11 418 1529 42	+363.2 ± 16.65
ncm-dbt-05	06:44:23	607103	3984	1845 250 1889	+147.34 ± 4.34	0 12 429 1495 56	+356.72 ± 16.43
			20000	9202 1318 9480	+144.8 ± 1.91	1 64 2210 7500 225	+351.11 ± 7.23

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	PGN
487168	ncm-dbt-01	586350	16	8 0 8	+190.7 ± 83.17	0 0 1 6 1	+470.09 ± 866.76	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1771663343 \ -pgnout ncm-dbt-20261025-2013-041.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487167	ncm-dbt-05	604802	484	229 25 230	+156.17 ± 12.35	0 1 45 187 9	+387.35 ± 51.77	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2213500386 \ -pgnout ncm-dbt-20261025-2013-040.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487166	ncm-dbt-02	595368	500	224 34 242	+138.99 ± 12.7	0 3 60 181 6	+327.18 ± 44.54	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1412799205 \ -pgnout ncm-dbt-20261025-2013-039.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487165	ncm-dbt-04	570629	500	229 30 241	+146.36 ± 12.18	0 4 47 195 4	+363.2 ± 50.62	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1324728142 \ -pgnout ncm-dbt-20261025-2013-038.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487164	ncm-dbt-03	587749	500	234 43 223	+139.81 ± 12.47	0 3 58 184 5	+333.32 ± 45.35	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2633239613 \ -pgnout ncm-dbt-20261025-2013-037.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487163	ncm-dbt-01	587452	500	230 31 239	+146.36 ± 11.52	0 2 50 195 3	+366.78 ± 49.02	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1804876791 \ -pgnout ncm-dbt-20261025-2013-036.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487162	ncm-dbt-05	607922	500	222 32 246	+138.99 ± 12.7	0 2 63 178 7	+324.17 ± 43.32	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 938989288 \ -pgnout ncm-dbt-20261025-2013-035.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487161	ncm-dbt-02	594714	500	232 29 239	+149.68 ± 12.23	0 1 53 188 8	+363.2 ± 47.43	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2096064316 \ -pgnout ncm-dbt-20261025-2013-034.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487160	ncm-dbt-04	569111	500	229 30 241	+146.36 ± 12.18	0 1 56 186 7	+352.8 ± 46.04	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1525119297 \ -pgnout ncm-dbt-20261025-2013-033.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487159	ncm-dbt-01	587113	500	228 40 232	+137.37 ± 11.94	0 2 61 184 3	+330.23 ± 44.08	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 64328519 \ -pgnout ncm-dbt-20261025-2013-032.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487158	ncm-dbt-03	588345	500	229 32 239	+144.71 ± 11.83	0 1 56 188 5	+352.8 ± 46.04	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1828711295 \ -pgnout ncm-dbt-20261025-2013-031.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487157	ncm-dbt-05	598788	500	236 29 235	+153.02 ± 12.26	0 2 47 193 8	+377.87 ± 50.67	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3561102682 \ -pgnout ncm-dbt-20261025-2013-030.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487156	ncm-dbt-02	594714	500	232 30 238	+148.85 ± 11.83	0 2 49 194 5	+370.41 ± 49.56	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 4209981164 \ -pgnout ncm-dbt-20261025-2013-029.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487155	ncm-dbt-04	571511	500	238 33 229	+151.34 ± 12.57	0 2 50 189 9	+366.78 ± 49.02	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 484144257 \ -pgnout ncm-dbt-20261025-2013-028.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487154	ncm-dbt-01	584706	500	227 34 239	+141.44 ± 11.98	0 2 57 187 4	+342.85 ± 45.71	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3874825095 \ -pgnout ncm-dbt-20261025-2013-027.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487153	ncm-dbt-03	584622	500	228 30 242	+145.54 ± 11.56	0 0 57 188 5	+356.21 ± 45.43	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3399540201 \ -pgnout ncm-dbt-20261025-2013-026.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487152	ncm-dbt-02	592245	500	227 30 243	+144.71 ± 12.05	0 0 60 183 7	+346.11 ± 44.19	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3625529147 \ -pgnout ncm-dbt-20261025-2013-025.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487151	ncm-dbt-05	605974	500	221 23 256	+145.54 ± 12.01	0 4 47 196 3	+363.2 ± 50.62	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2291456239 \ -pgnout ncm-dbt-20261025-2013-024.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487150	ncm-dbt-04	571953	500	225 28 247	+144.71 ± 10.91	0 0 55 193 2	+363.19 ± 46.32	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1311396189 \ -pgnout ncm-dbt-20261025-2013-023.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487149	ncm-dbt-01	585295	500	233 31 236	+148.85 ± 12.27	0 2 51 190 7	+363.2 ± 48.51	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 4251025176 \ -pgnout ncm-dbt-20261025-2013-022.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487148	ncm-dbt-03	585717	500	226 41 233	+134.95 ± 13.03	1 2 63 179 5	+318.25 ± 43.39	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 4175343714 \ -pgnout ncm-dbt-20261025-2013-021.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487147	ncm-dbt-05	605929	500	236 36 228	+147.19 ± 11.47	0 0 55 190 5	+363.19 ± 46.32	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2770158869 \ -pgnout ncm-dbt-20261025-2013-020.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487146	ncm-dbt-02	595106	500	230 36 234	+142.25 ± 11.73	0 1 58 187 4	+346.12 ± 45.18	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2266161038 \ -pgnout ncm-dbt-20261025-2013-019.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487145	ncm-dbt-01	582652	500	229 35 236	+142.25 ± 13.18	0 2 62 176 10	+327.18 ± 43.69	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 4059938385 \ -pgnout ncm-dbt-20261025-2013-018.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487144	ncm-dbt-04	570388	500	229 31 240	+145.54 ± 11.1	0 1 52 195 2	+366.78 ± 47.92	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 4095851003 \ -pgnout ncm-dbt-20261025-2013-017.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487143	ncm-dbt-03	583656	500	229 39 232	+138.99 ± 12.3	0 3 58 185 4	+333.32 ± 45.35	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 532093483 \ -pgnout ncm-dbt-20261025-2013-016.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487142	ncm-dbt-05	608651	500	226 29 245	+144.71 ± 12.05	0 1 57 186 6	+349.43 ± 45.6	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3348934228 \ -pgnout ncm-dbt-20261025-2013-015.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487141	ncm-dbt-04	572638	500	230 30 240	+147.19 ± 11.92	0 1 54 189 6	+359.68 ± 46.95	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3161066376 \ -pgnout ncm-dbt-20261025-2013-014.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487140	ncm-dbt-02	591211	500	234 32 234	+148.85 ± 12.27	0 1 54 187 8	+359.68 ± 46.95	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1282352414 \ -pgnout ncm-dbt-20261025-2013-013.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487139	ncm-dbt-03	585759	500	220 29 251	+139.81 ± 12.05	0 2 59 185 4	+336.46 ± 44.87	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1512326659 \ -pgnout ncm-dbt-20261025-2013-012.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487138	ncm-dbt-01	585632	500	226 30 244	+143.89 ± 10.96	0 0 56 192 2	+359.67 ± 45.87	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 137797872 \ -pgnout ncm-dbt-20261025-2013-011.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487137	ncm-dbt-05	602650	500	238 37 225	+148.01 ± 12.53	0 0 59 181 10	+349.43 ± 44.59	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 1394533619 \ -pgnout ncm-dbt-20261025-2013-010.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487136	ncm-dbt-02	592806	500	239 34 227	+151.34 ± 12.14	0 2 48 193 7	+374.11 ± 50.1	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3984001877 \ -pgnout ncm-dbt-20261025-2013-009.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487135	ncm-dbt-04	571310	500	237 31 232	+152.18 ± 10.92	0 0 48 198 4	+389.55 ± 49.86	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 571375413 \ -pgnout ncm-dbt-20261025-2013-008.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487134	ncm-dbt-03	586266	500	229 37 234	+140.62 ± 12.23	0 2 59 184 5	+336.46 ± 44.87	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 4097409944 \ -pgnout ncm-dbt-20261025-2013-007.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487133	ncm-dbt-01	587622	500	235 39 226	+143.89 ± 11.87	0 1 57 187 5	+349.43 ± 45.6	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 418318881 \ -pgnout ncm-dbt-20261025-2013-006.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487132	ncm-dbt-05	622111	500	237 39 224	+145.54 ± 12.64	0 2 56 184 8	+346.12 ± 46.15	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 2187186006 \ -pgnout ncm-dbt-20261025-2013-005.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487131	ncm-dbt-02	686982	500	236 45 219	+139.81 ± 12.05	0 1 62 182 5	+333.32 ± 43.57	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3868286239 \ -pgnout ncm-dbt-20261025-2013-004.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487130	ncm-dbt-04	573365	500	222 24 254	+145.54 ± 12.64	0 2 56 184 8	+346.12 ± 46.15	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3220250481 \ -pgnout ncm-dbt-20261025-2013-003.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487129	ncm-dbt-01	586477	500	229 32 239	+144.71 ± 12.88	0 5 49 190 6	+349.43 ± 49.46	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3280376524 \ -pgnout ncm-dbt-20261025-2013-002.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
487128	ncm-dbt-03	589539	500	224 38 238	+135.76 ± 11.8	0 1 65 181 3	+324.17 ± 42.47	↓
cutechess-cli \ -rounds 250 \ -games 2 \ -concurrency 16 \ -srand 3199277064 \ -pgnout ncm-dbt-20261025-2013-001.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=20261025-2013 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:ff3a6c508ed731f0dcf253f4ddf646df19a62f84 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15

Commit

Commit ID	ff3a6c508ed731f0dcf253f4ddf646df19a62f84
Author	Carlos Esparza
Date	2026-10-25 20:13:40 UTC
21 bit tt keys with SWAR This patch restructures TT clusters and extends the TT keys inside the cluster from 16 to 21 bits (thus using 15 of the unused 16 bits in the old layout). This should make hash collisions 32 times less likely. This could improve the frequency with which issues such as https://github.com/official-stockfish/Stockfish/issues/7221 and https://github.com/official-stockfish/Stockfish/issues/5174 occur passed non-reg STC: https://tests.stockfishchess.org/tests/view/6ad492fb733e627f7058c711 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 51552 W: 13180 L: 12986 D: 25386 Ptnml(0-2): 59, 5703, 14059, 5895, 60 passed non-reg LTC: https://tests.stockfishchess.org/tests/view/6ad70b25733e627f7058cda3 LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 71394 W: 18358 L: 18195 D: 34841 Ptnml(0-2): 16, 7341, 20819, 7506, 15 also passed non-reg SMP STC with high hash pressure: https://tests.stockfishchess.org/tests/view/6ad71654733e627f7058cdb5 LLR: 2.95 (-2.94,2.94) <-1.75,0.25> Total: 107224 W: 27527 L: 27390 D: 52307 Ptnml(0-2): 184, 11916, 29288, 12027, 197 closes https://github.com/official-stockfish/Stockfish/pull/7236 Bench: 2389370