Dev Builds » 20260213-0615

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	06:44:20	581731	4004	1753 368 1883	+125.35 ± 4.59	0 31 593 1340 38	+283.47 ± 13.95
ncm-dbt-02	06:43:39	585265	4000	1719 394 1887	+119.6 ± 4.74	2 45 611 1310 32	+267.87 ± 13.77
ncm-dbt-03	06:44:38	585416	3998	1715 335 1948	+125.06 ± 4.53	0 34 578 1360 27	+286.03 ± 14.15
ncm-dbt-04	06:43:44	566697	3998	1706 351 1941	+122.6 ± 4.52	1 31 602 1342 23	+279.69 ± 13.84
ncm-dbt-05	06:43:41	581293	4000	1711 365 1924	+121.65 ± 4.5	1 30 612 1336 21	+277.3 ± 13.72
			20000	8604 1813 9583	+122.85 ± 2.05	4 171 2996 6688 141	+278.8 ± 6.2

Test Detail

ID	Host	Base NPS	Games	WLD	Standard Elo	Ptnml(0-2)	Gamepair Elo	PGN
454871	ncm-dbt-01	582110	4	1 1 2	0.0 ± 17.0	0 0 2 0 0	-0.0 ± 15.22	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 557838260 \ -pgnout ncm-dbt-20260213-0615-041.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454870	ncm-dbt-04	566020	498	214 39 245	+127.52 ± 12.68	0 3 72 170 4	+292.46 ± 40.38	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4088983662 \ -pgnout ncm-dbt-20260213-0615-040.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454869	ncm-dbt-03	585885	498	216 31 251	+135.55 ± 12.25	0 3 61 182 3	+323.36 ± 44.15	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3080741201 \ -pgnout ncm-dbt-20260213-0615-039.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454868	ncm-dbt-05	580655	500	204 43 253	+116.0 ± 12.66	0 3 86 158 3	+258.75 ± 36.62	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1807781520 \ -pgnout ncm-dbt-20260213-0615-038.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454867	ncm-dbt-02	587494	500	222 49 229	+125.39 ± 13.25	1 4 69 173 3	+290.66 ± 41.43	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3577991722 \ -pgnout ncm-dbt-20260213-0615-037.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454866	ncm-dbt-01	581319	500	221 48 231	+125.38 ± 13.07	0 5 71 170 4	+285.49 ± 40.81	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4206101722 \ -pgnout ncm-dbt-20260213-0615-036.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454865	ncm-dbt-04	566336	500	212 43 245	+122.24 ± 13.3	0 7 70 170 3	+277.93 ± 41.14	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 802229630 \ -pgnout ncm-dbt-20260213-0615-035.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454864	ncm-dbt-05	583279	500	220 44 236	+127.76 ± 12.26	0 5 64 181 0	+304.07 ± 43.1	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 442512493 \ -pgnout ncm-dbt-20260213-0615-034.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454863	ncm-dbt-03	586266	500	210 37 253	+125.38 ± 13.25	0 6 69 171 4	+285.49 ± 41.44	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 587053578 \ -pgnout ncm-dbt-20260213-0615-033.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454862	ncm-dbt-02	584958	500	216 50 234	+119.89 ± 12.61	0 4 78 166 2	+273.0 ± 38.74	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 669536739 \ -pgnout ncm-dbt-20260213-0615-032.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454861	ncm-dbt-01	581652	500	227 50 223	+128.55 ± 13.73	0 3 77 160 10	+280.42 ± 38.93	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 578405825 \ -pgnout ncm-dbt-20260213-0615-031.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454860	ncm-dbt-04	565390	500	216 51 233	+119.11 ± 12.99	1 4 75 169 1	+275.45 ± 39.63	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1670407373 \ -pgnout ncm-dbt-20260213-0615-030.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454859	ncm-dbt-05	579372	500	223 58 219	+119.11 ± 13.69	0 6 79 159 6	+261.07 ± 38.58	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3482712576 \ -pgnout ncm-dbt-20260213-0615-029.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454858	ncm-dbt-03	579496	500	212 41 247	+123.81 ± 12.92	0 5 72 170 3	+282.94 ± 40.5	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3553543092 \ -pgnout ncm-dbt-20260213-0615-028.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454857	ncm-dbt-02	585885	500	219 49 232	+123.02 ± 13.11	0 5 74 167 4	+277.93 ± 39.92	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3219007976 \ -pgnout ncm-dbt-20260213-0615-027.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454856	ncm-dbt-01	582152	500	215 39 246	+127.76 ± 13.02	0 5 68 173 4	+293.29 ± 41.75	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3004033667 \ -pgnout ncm-dbt-20260213-0615-026.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454855	ncm-dbt-04	566928	500	213 35 252	+129.35 ± 12.61	0 3 70 173 4	+298.62 ± 41.01	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2206207242 \ -pgnout ncm-dbt-20260213-0615-025.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454854	ncm-dbt-03	587664	500	205 44 251	+116.0 ± 12.29	0 3 84 162 1	+263.42 ± 37.11	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2032365554 \ -pgnout ncm-dbt-20260213-0615-024.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454853	ncm-dbt-05	577356	500	213 45 242	+121.46 ± 13.84	1 6 71 168 4	+275.45 ± 40.84	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2868054994 \ -pgnout ncm-dbt-20260213-0615-023.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454852	ncm-dbt-02	584832	500	215 56 229	+114.45 ± 14.05	0 8 81 155 6	+247.41 ± 38.13	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2789069393 \ -pgnout ncm-dbt-20260213-0615-022.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454851	ncm-dbt-01	582569	500	206 49 245	+112.91 ± 13.56	0 6 86 153 5	+245.2 ± 36.85	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 4293151231 \ -pgnout ncm-dbt-20260213-0615-021.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454850	ncm-dbt-04	566336	500	205 33 262	+124.6 ± 13.27	0 6 70 170 4	+282.94 ± 41.13	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 875694901 \ -pgnout ncm-dbt-20260213-0615-020.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454849	ncm-dbt-05	584706	500	216 35 249	+131.74 ± 11.94	0 0 73 173 4	+306.84 ± 39.69	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3382315766 \ -pgnout ncm-dbt-20260213-0615-019.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454848	ncm-dbt-03	586646	500	225 49 226	+127.76 ± 12.84	0 3 73 169 5	+290.66 ± 40.08	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1401344226 \ -pgnout ncm-dbt-20260213-0615-018.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454847	ncm-dbt-02	584243	500	210 39 251	+123.81 ± 13.81	0 6 74 163 7	+273.0 ± 39.95	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 65035996 \ -pgnout ncm-dbt-20260213-0615-017.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454846	ncm-dbt-01	582277	500	218 44 238	+126.17 ± 12.68	0 4 71 172 3	+290.66 ± 40.76	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1114681172 \ -pgnout ncm-dbt-20260213-0615-016.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454845	ncm-dbt-04	566849	500	213 44 243	+122.24 ± 12.38	0 3 77 168 2	+280.42 ± 38.93	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 878076599 \ -pgnout ncm-dbt-20260213-0615-015.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454844	ncm-dbt-05	584622	500	212 41 247	+123.81 ± 11.76	0 1 78 170 1	+288.06 ± 38.42	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1615510107 \ -pgnout ncm-dbt-20260213-0615-014.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454843	ncm-dbt-02	583824	500	219 53 228	+119.89 ± 12.98	0 5 77 165 3	+270.57 ± 39.07	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2879364375 \ -pgnout ncm-dbt-20260213-0615-013.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454842	ncm-dbt-03	581194	500	221 42 237	+130.14 ± 12.97	0 5 65 176 4	+301.33 ± 42.75	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3581668024 \ -pgnout ncm-dbt-20260213-0615-012.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454841	ncm-dbt-01	579785	500	213 43 244	+123.02 ± 12.37	0 3 76 169 2	+282.94 ± 39.21	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 720081196 \ -pgnout ncm-dbt-20260213-0615-011.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454840	ncm-dbt-04	568275	500	210 58 232	+109.07 ± 12.53	0 3 94 151 2	+240.82 ± 34.82	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1652219324 \ -pgnout ncm-dbt-20260213-0615-010.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454839	ncm-dbt-02	586012	500	214 53 233	+116.0 ± 14.37	1 6 81 155 7	+251.89 ± 38.11	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1743724221 \ -pgnout ncm-dbt-20260213-0615-009.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454838	ncm-dbt-05	579289	500	203 47 250	+112.14 ± 13.04	0 6 84 158 2	+249.64 ± 37.33	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 496904401 \ -pgnout ncm-dbt-20260213-0615-008.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454837	ncm-dbt-03	587155	500	210 43 247	+120.67 ± 12.97	0 5 76 166 3	+273.0 ± 39.35	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3398564960 \ -pgnout ncm-dbt-20260213-0615-007.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454836	ncm-dbt-01	580862	500	226 53 221	+125.38 ± 12.51	0 3 74 170 3	+288.06 ± 39.79	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 3391841625 \ -pgnout ncm-dbt-20260213-0615-006.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454835	ncm-dbt-04	567442	500	223 48 229	+126.97 ± 12.28	0 2 74 171 3	+293.29 ± 39.69	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 728665240 \ -pgnout ncm-dbt-20260213-0615-005.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454834	ncm-dbt-05	581070	500	220 52 228	+121.45 ± 12.2	0 3 77 169 1	+280.42 ± 38.93	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 1377749751 \ -pgnout ncm-dbt-20260213-0615-004.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454833	ncm-dbt-03	589027	500	216 48 236	+121.45 ± 12.95	0 4 78 164 4	+273.0 ± 38.74	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 594610395 \ -pgnout ncm-dbt-20260213-0615-003.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454832	ncm-dbt-02	584874	500	204 45 251	+114.45 ± 12.85	0 7 77 166 0	+261.07 ± 39.14	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 927715122 \ -pgnout ncm-dbt-20260213-0615-002.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15
454831	ncm-dbt-01	582861	500	226 41 233	+134.95 ± 12.84	0 2 68 173 7	+309.64 ± 41.56	↓
cutechess-cli \ -rounds 266 \ -games 2 \ -concurrency 16 \ -srand 2156570011 \ -pgnout ncm-dbt-20260213-0615-001.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=20260213-0615 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=dev_build:91c6ea82aa1a7e0239d35f665360562e5ac3f537 \ -engine \ name=sf15 \ cmd=docker \ arg=run \ arg=-i \ arg=--rm \ arg=--entrypoint=/engine \ arg=stockfish:15

Commit

Commit ID	91c6ea82aa1a7e0239d35f665360562e5ac3f537
Author	Daniel Monroe
Date	2026-02-13 06:15:35 UTC
Simplify malus formula Passed non-regression STC LLR: 2.96 (-2.94,2.94) <-1.75,0.25> Total: 51936 W: 13490 L: 13283 D: 25163 Ptnml(0-2): 161, 6128, 13184, 6333, 162 https://tests.stockfishchess.org/tests/view/698120e06362aee5c8a55412 Passed non-regression LTC LLR: 2.94 (-2.94,2.94) <-1.75,0.25> Total: 233772 W: 59502 L: 59499 D: 114771 Ptnml(0-2): 144, 25753, 65086, 25762, 141 https://tests.stockfishchess.org/tests/view/69827426889c3a4c31c8db52 closes https://github.com/official-stockfish/Stockfish/pull/6606 bench 2739355