OpenBench

OpenBench Testing Framework

Author	Brandonuser
Creation	1757023203
Source	https://github.com/namebrandon/seajay-chess
Sha	059424e5ae8670e538be0cbf6574c17fea1648ad
Branch	tune/20250904-null-move
Bench	19191913
Network
Options	Threads=1 Hash=8
Time	10.0+0.10
Opening Book	UHO_Lichess_4852_v1.epd
Upload PGNs	FALSE
Syzygy WDL	DISABLED
Syzygy ADJ.	OPTIONAL
Win ADJ.	movecount=3 score=1400
Draw ADJ.	movenumber=40 movecount=8 score=10
Scaling	DEV 8097796 NPS
Alpha	0.602
Gamma	0.101
A-Ratio	0.1
Reporting	BATCHED
Distribution	SINGLE
Pairs Per Point	8

tune/20250904-null-move vs tune/20250904-null-move

Approve Restart Delete

NullMoveStaticMargin, int, 90.0, 50.0, 300.0, 10.0, 0.002
NullMoveReductionBase, int, 2.0, 1.0, 4.0, 0.5, 0.002
NullMoveReductionDepth6, int, 3.0, 2.0, 5.0, 0.5, 0.002
NullMoveReductionDepth12, int, 4.0, 3.0, 6.0, 0.5, 0.002
NullMoveEvalMargin, int, 200.0, 100.0, 400.0, 15.0, 0.002
NullMoveMinDepth, int, 3.0, 2.0, 5.0, 0.5, 0.002

Copy SPSA Inputs

NullMoveStaticMargin, 94
NullMoveReductionBase, 3
NullMoveReductionDepth6, 4
NullMoveReductionDepth12, 5
NullMoveEvalMargin, 217
NullMoveMinDepth, 2

Copy SPSA Outputs

Tuning 6 Parameters
529/25000 Iterations
8464/400000 Games Played

Name	Curr	Start	Min	Max	C	C_end	R	R_end
NullMoveStaticMargin	93.5030	90	50	300	14.7584	10.0000	0.0035	0.0020
NullMoveReductionBase	2.9822	2	1	4	0.7379	0.5000	0.0035	0.0020
NullMoveReductionDepth6	4.0435	3	2	5	0.7379	0.5000	0.0035	0.0020
NullMoveReductionDepth12	4.5502	4	3	6	0.7379	0.5000	0.0035	0.0020
NullMoveEvalMargin	217.1702	200	100	400	22.1376	15.0000	0.0035	0.0020
NullMoveMinDepth	2.0954	3	2	5	0.7379	0.5000	0.0035	0.0020

#	User	Updated	Games	Won	Lost	Drawn
9	Brandonuser	1757025322	1040	339	326	375
465	Brandonuser	1757025331	896	228	359	309
306	Brandonuser	1757025330	2436	785	816	835
482	Brandonuser	1757025274	512	162	174	176
483	Brandonuser	1757025244	512	164	171	177
484	Brandonuser	1757025216	512	157	155	200
485	Brandonuser	1757025233	512	143	199	170
486	Brandonuser	1757025264	512	179	142	191
487	Brandonuser	1757025197	512	207	126	179
488	Brandonuser	1757025275	512	192	155	165
489	Brandonuser	1757025249	508	157	181	170