Dev Builds » 20260213-0612

Use this dev build

NCM plays each Stockfish dev build 20,000 times against Stockfish 15. This yields an approximate Elo difference and establishes confidence in the strength of the dev builds.

Summary

Host	Duration	Avg Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo
ncm-dbt-01	06:44:49	583344	4006	1735 401 1870	+120.28 ± 4.62	0 37 627 1307 32	+269.38 ± 13.56
ncm-dbt-02	06:44:28	585733	3990	1737 363 1890	+124.74 ± 4.48	0 29 588 1353 25	+285.61 ± 14.01
ncm-dbt-03	06:44:41	586239	4010	1726 401 1883	+119.28 ± 4.63	0 42 624 1311 28	+267.5 ± 13.61
ncm-dbt-04	06:44:18	566610	4002	1721 391 1890	+120.02 ± 4.69	1 40 622 1304 34	+268.27 ± 13.63
ncm-dbt-05	06:44:07	580738	3992	1752 363 1877	+126.16 ± 4.49	1 21 594 1348 32	+288.3 ± 13.91
			20000	8671 1919 9410	+122.08 ± 2.05	2 169 3055 6623 151	+275.64 ± 6.14

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	PGN
454916	ncm-dbt-04	569430	2	1 0 1	+189.7 ± 55.98	0 0 0 1 0	+1129.65 ± 376.02	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2691010478 \ -pgnout ncm-dbt-20260213-0612-043.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454915	ncm-dbt-01	582903	6	3 1 2	+120.22 ± 109.7	0 0 1 2 0	+279.24 ± 576.89	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2134047982 \ -pgnout ncm-dbt-20260213-0612-042.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454914	ncm-dbt-03	585211	10	3 1 6	+70.36 ± 79.51	0 0 3 2 0	+147.07 ± 211.27	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3161763469 \ -pgnout ncm-dbt-20260213-0612-041.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454913	ncm-dbt-02	586181	490	203 51 236	+111.45 ± 12.66	0 3 89 151 2	+247.55 ± 35.88	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1716442273 \ -pgnout ncm-dbt-20260213-0612-040.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454912	ncm-dbt-05	578136	492	211 37 244	+128.42 ± 12.36	0 1 74 167 4	+295.31 ± 39.53	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4068034169 \ -pgnout ncm-dbt-20260213-0612-039.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454911	ncm-dbt-01	583992	500	224 51 225	+125.38 ± 12.7	0 2 78 165 5	+282.94 ± 38.55	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2087491212 \ -pgnout ncm-dbt-20260213-0612-038.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454910	ncm-dbt-04	564096	500	219 41 240	+129.35 ± 13.17	0 4 70 170 6	+293.29 ± 41.07	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1515760130 \ -pgnout ncm-dbt-20260213-0612-037.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454909	ncm-dbt-03	587070	500	216 56 228	+115.22 ± 13.03	0 4 86 156 4	+254.16 ± 36.71	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2232398371 \ -pgnout ncm-dbt-20260213-0612-036.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454908	ncm-dbt-05	577807	500	220 38 242	+132.54 ± 12.71	0 2 70 172 6	+304.07 ± 40.91	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 776221221 \ -pgnout ncm-dbt-20260213-0612-035.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454907	ncm-dbt-02	586435	500	206 45 249	+116.0 ± 12.66	0 6 77 167 0	+265.78 ± 39.12	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 684587378 \ -pgnout ncm-dbt-20260213-0612-034.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454906	ncm-dbt-04	564370	500	219 51 230	+121.45 ± 12.95	0 5 75 167 3	+275.45 ± 39.63	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2528295456 \ -pgnout ncm-dbt-20260213-0612-033.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454905	ncm-dbt-03	586266	500	209 53 238	+112.14 ± 12.87	0 4 89 154 3	+247.41 ± 36.02	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3196404541 \ -pgnout ncm-dbt-20260213-0612-032.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454904	ncm-dbt-01	583740	500	214 56 230	+113.68 ± 13.72	0 8 80 158 4	+249.64 ± 38.38	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 689273389 \ -pgnout ncm-dbt-20260213-0612-031.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454903	ncm-dbt-02	584832	500	220 44 236	+127.76 ± 12.26	0 3 70 175 2	+298.62 ± 41.01	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2428869516 \ -pgnout ncm-dbt-20260213-0612-030.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454902	ncm-dbt-05	583740	500	226 50 224	+127.76 ± 13.57	0 7 65 173 5	+290.66 ± 42.73	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 475310460 \ -pgnout ncm-dbt-20260213-0612-029.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454901	ncm-dbt-04	565037	500	209 47 244	+116.77 ± 12.65	0 3 85 159 3	+261.07 ± 36.86	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4173221827 \ -pgnout ncm-dbt-20260213-0612-028.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454900	ncm-dbt-03	585801	500	220 54 226	+119.89 ± 12.98	0 4 80 162 4	+268.17 ± 38.21	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 334192986 \ -pgnout ncm-dbt-20260213-0612-027.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454899	ncm-dbt-01	583572	500	219 44 237	+126.97 ± 12.47	0 3 72 172 3	+293.29 ± 40.39	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2644116222 \ -pgnout ncm-dbt-20260213-0612-026.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454898	ncm-dbt-02	584159	500	224 40 236	+134.15 ± 12.47	0 1 70 173 6	+309.64 ± 40.79	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3710109796 \ -pgnout ncm-dbt-20260213-0612-025.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454897	ncm-dbt-05	582402	500	218 58 224	+115.22 ± 12.85	0 5 82 161 2	+258.75 ± 37.76	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 931587534 \ -pgnout ncm-dbt-20260213-0612-024.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454896	ncm-dbt-03	584916	500	222 51 227	+123.81 ± 13.28	0 7 68 172 3	+282.94 ± 41.76	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2126144659 \ -pgnout ncm-dbt-20260213-0612-023.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454895	ncm-dbt-01	585042	500	229 56 215	+125.38 ± 13.43	0 4 76 163 7	+277.93 ± 39.29	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4141122786 \ -pgnout ncm-dbt-20260213-0612-022.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454894	ncm-dbt-04	566770	500	210 52 238	+113.68 ± 13.55	1 6 79 162 2	+256.44 ± 38.62	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3734538330 \ -pgnout ncm-dbt-20260213-0612-021.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454893	ncm-dbt-05	581402	500	211 51 238	+115.22 ± 12.67	0 2 90 154 4	+254.16 ± 35.58	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2271219308 \ -pgnout ncm-dbt-20260213-0612-020.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454892	ncm-dbt-02	586097	500	213 40 247	+125.38 ± 12.51	0 4 71 173 2	+290.66 ± 40.76	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3358173996 \ -pgnout ncm-dbt-20260213-0612-019.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454891	ncm-dbt-03	587452	500	201 44 255	+112.91 ± 13.39	0 6 85 155 4	+247.41 ± 37.09	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1665476200 \ -pgnout ncm-dbt-20260213-0612-018.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454890	ncm-dbt-01	585379	500	201 41 258	+115.22 ± 13.38	0 6 82 158 4	+254.16 ± 37.82	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2287309381 \ -pgnout ncm-dbt-20260213-0612-017.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454889	ncm-dbt-04	566138	500	219 49 232	+123.02 ± 14.16	0 7 74 161 8	+268.17 ± 39.97	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3016305853 \ -pgnout ncm-dbt-20260213-0612-016.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454888	ncm-dbt-05	580862	500	220 43 237	+128.55 ± 11.63	0 0 75 173 2	+301.33 ± 39.1	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3632362160 \ -pgnout ncm-dbt-20260213-0612-015.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454887	ncm-dbt-02	585379	500	224 49 227	+126.97 ± 12.47	0 3 72 172 3	+293.29 ± 40.39	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1848186399 \ -pgnout ncm-dbt-20260213-0612-014.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454886	ncm-dbt-03	587367	500	215 54 231	+116.0 ± 13.71	0 9 74 164 3	+258.75 ± 39.96	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1554296275 \ -pgnout ncm-dbt-20260213-0612-013.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454885	ncm-dbt-04	570388	500	214 49 237	+119.11 ± 13.52	0 6 78 161 5	+263.42 ± 38.85	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1285255757 \ -pgnout ncm-dbt-20260213-0612-012.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454884	ncm-dbt-01	583740	500	213 47 240	+119.89 ± 12.79	0 5 76 167 2	+273.0 ± 39.35	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3467858827 \ -pgnout ncm-dbt-20260213-0612-011.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454883	ncm-dbt-05	579909	500	227 39 234	+137.37 ± 12.15	0 2 62 182 4	+327.18 ± 43.69	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 350902052 \ -pgnout ncm-dbt-20260213-0612-010.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454882	ncm-dbt-02	586223	500	225 50 225	+126.97 ± 13.22	0 4 73 167 6	+285.49 ± 40.16	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3869103702 \ -pgnout ncm-dbt-20260213-0612-009.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454881	ncm-dbt-03	584622	500	215 46 239	+122.24 ± 12.19	0 2 79 167 2	+280.42 ± 38.28	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2221062872 \ -pgnout ncm-dbt-20260213-0612-008.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454880	ncm-dbt-04	566060	500	224 45 231	+130.14 ± 12.78	0 3 70 172 5	+298.62 ± 41.01	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 981024617 \ -pgnout ncm-dbt-20260213-0612-007.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454879	ncm-dbt-01	579620	500	222 55 223	+120.67 ± 12.6	0 3 80 164 3	+273.0 ± 38.12	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4024018326 \ -pgnout ncm-dbt-20260213-0612-006.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454878	ncm-dbt-05	581652	500	219 47 234	+124.6 ± 13.27	1 2 76 166 5	+282.94 ± 39.21	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2588594047 \ -pgnout ncm-dbt-20260213-0612-005.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454877	ncm-dbt-02	586562	500	222 44 234	+129.35 ± 12.99	0 5 66 175 4	+298.62 ± 42.41	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1050728414 \ -pgnout ncm-dbt-20260213-0612-004.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454876	ncm-dbt-04	567205	500	206 57 237	+106.77 ± 13.06	0 6 91 151 2	+234.38 ± 35.72	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 727118259 \ -pgnout ncm-dbt-20260213-0612-003.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454875	ncm-dbt-03	587452	500	225 42 233	+133.34 ± 13.26	0 6 60 179 5	+309.64 ± 44.55	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 901329493 \ -pgnout ncm-dbt-20260213-0612-002.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454874	ncm-dbt-01	582110	500	210 50 240	+115.22 ± 13.38	0 6 82 158 4	+254.16 ± 37.82	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 801271338 \ -pgnout ncm-dbt-20260213-0612-001.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=20260213-0612 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:89b4f457e0ea492dfc17042392b9bc91e350ef76 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15

Commit

Commit ID	89b4f457e0ea492dfc17042392b9bc91e350ef76
Author	Daniel Monroe
Date	2026-02-13 06:12:04 UTC
Simplify malus decay formula Passed non-regression STC LLR: 2.93 (-2.94,2.94) <-1.75,0.25> Total: 93600 W: 24165 L: 24007 D: 45428 Ptnml(0-2): 325, 11021, 23958, 11163, 333 https://tests.stockfishchess.org/tests/view/698121d46362aee5c8a55414 Passed non-regression LTC LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 83232 W: 21236 L: 21077 D: 40919 Ptnml(0-2): 46, 9147, 23083, 9282, 58 https://tests.stockfishchess.org/tests/view/698336dc473df9d1d24a90e8 closes https://github.com/official-stockfish/Stockfish/pull/6600 Bench: 2666284