OpenBench

OpenBench Testing Framework

Author	Brandonuser
Creation	1757194465
Source	https://github.com/namebrandon/seajay-chess
Sha	e976be2ecf1bf3ef8e277c67986d00aba290213d
Branch	tune/20250906-core-tactical
Bench	19191913
Network
Options	Threads=1 Hash=8 SEEMode=production SEEPruning=aggressive
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/20250906-core-tacti... vs tune/20250906-core-tacti...

Approve Restart Delete

MaxCheckPly, int, 6.0, 4.0, 10.0, 1.0, 0.002
CountermoveBonus, int, 7960.0, 5000.0, 20000.0, 1000.0, 0.002
MoveCountHistoryBonus, int, 6.0, 2.0, 15.0, 1.0, 0.002
MoveCountHistoryThreshold, int, 0.0, 0.0, 4000.0, 200.0, 0.002
LMRMinMoveNumber, int, 2.0, 0.0, 15.0, 1.0, 0.002
LMRHistoryThreshold, int, 50.0, 10.0, 70.0, 5.0, 0.002
LMRBaseReduction, int, 50.0, 10.0, 80.0, 5.0, 0.002
LMRDepthFactor, int, 225.0, 100.0, 350.0, 20.0, 0.002

Copy SPSA Inputs

MaxCheckPly, 8
CountermoveBonus, 7346
MoveCountHistoryBonus, 6
MoveCountHistoryThreshold, 2
LMRMinMoveNumber, 1
LMRHistoryThreshold, 53
LMRBaseReduction, 46
LMRDepthFactor, 276

Copy SPSA Outputs

Tuning 8 Parameters
10001/10000 Iterations
160030/160000 Games Played

Name	Curr	Start	Min	Max	C	C_end	R	R_end
MaxCheckPly	7.7122	6	4	10	1.0000	1.0000	0.0020	0.0020
CountermoveBonus	7345.9277	7960	5000	20000	999.9710	1000.0000	0.0020	0.0020
MoveCountHistoryBonus	6.0854	6	2	15	1.0000	1.0000	0.0020	0.0020
MoveCountHistoryThreshold	2.0848	0	0	4000	199.9942	200.0000	0.0020	0.0020
LMRMinMoveNumber	0.7956	2	0	15	1.0000	1.0000	0.0020	0.0020
LMRHistoryThreshold	52.5998	50	10	70	4.9999	5.0000	0.0020	0.0020
LMRBaseReduction	45.7956	50	10	80	4.9999	5.0000	0.0020	0.0020
LMRDepthFactor	275.9386	225	100	350	19.9994	20.0000	0.0020	0.0020

#	User	Updated	Games	Won	Lost	Drawn	Time
504	Kasparov	1757199537	2440	752	786	902	0
306	Brandonuser	1757205260	14056	4180	4415	5461	0
9	Brandonuser	1757206678	6752	2061	2158	2533	0
505	Carlsen	1757203317	11704	3618	3539	4547	0
506	Brandonuser	1757204749	10940	3290	3359	4291	0
507	Brandonuser	1757204757	10988	3279	3392	4317	0
508	Brandonuser	1757204730	10894	3295	3337	4262	0
509	Brandonuser	1757204689	10752	3229	3270	4253	0
510	Brandonuser	1757204726	10816	3341	3231	4244	1
511	Brandonuser	1757204743	10810	3213	3247	4350	0
512	Brandonuser	1757204748	10864	3274	3266	4324	0
513	Brandonuser	1757204748	10940	3336	3204	4400	1
514	Brandonuser	1757204754	5736	1710	1697	2329	0
515	Carlsen	1757206006	2566	813	750	1003	0
516	Kasparov	1757205981	2112	686	594	832	0
517	Nakamura	1757205969	818	233	249	336	0
518	Brandonuser	1757208842	2530	780	760	990	0
519	Brandonuser	1757208822	2506	722	765	1019	0
520	Brandonuser	1757208823	2472	756	710	1006	0
521	Brandonuser	1757208831	2510	773	716	1021	0
522	Brandonuser	1757208839	2516	793	726	997	0
523	Brandonuser	1757208842	2516	758	748	1010	0
524	Brandonuser	1757208836	2538	725	807	1006	0
525	Brandonuser	1757208847	2506	751	745	1010	0
526	Nakamura	1757208851	1980	599	554	827	0
527	Kasparov	1757208847	2622	822	789	1011	0
528	Carlsen	1757208859	2146	635	658	853	0