Deuterium v13.1.31.113 released

[Ferdy]

New version is released probably 40 to 60 elo increase from previous version. See the following changes.

Code: Select all

Version 13.1.31.113 (11August13)
1. Evaluation
	a. Fixed passed pawn code
	b. Fixed connected passer code
	c. Fixed backward pawn code and penalties
	d. Modify knight outpost and pcsq table values
	e. Added queen safe contact check bonus
	f. Added hanging piece penalty
	g. Added weak pawn penalty
	h. Tune king safety scores
	i. Added draw evaluation for kbp-k, where pawn is a rook-pawn
	with a wrong bishop color.
	j. Added draw evaluation for kp-kq where pawn is at 7th rank
	on rook-pawn or bishop-pawn
	k. Added knowledge to win kbn-k ending
	l. Tune some eval parameters with CLOP and cutechess-cli
2. Search
	a. Improve main search prunning
	b. Improve LMR conditions
	c. Modify qsearch prunning and level of searching check moves
	d. Tune reduction and prunning margins and conditions using
	CLOP and cutechess-cli
3. Others
	a. Added Multi PV mode
	b. Added play mode, SPAR and RATED. In SPAR mode
	the engine will try to match opponent's strength when
	engine has already gained around 3 pawns. RATED
	mode is the default set at maximum strength.
	c. Done couple of optimizations on some parts of the code.
   d. Modify deuterium.ini file
	e. Auto detect hardware capable of using POPCNT 

https://sites.google.com/site/deuterium ... /deuterium

[Werner]

Thanks a lot, Ferdinand.

BTW, a nice version number.

Thanks too,
really a Nice Version number
Werner

[Graham Banks]

New version is released probably 40 to 60 elo increase from previous version......

Thanks Ferdinand.

[Ferdy]

In addition this was released on day 11 Manila time . Of course this is not intentional it just happened.

[Graham Banks]

Deuterium 13.1.31.113 64-bit Gauntlet currently running for CCRL 40/40.

Live broadcast in TLCV.
Host - GrahamCCRL.dyndns.org Port - 16074

[GenoM]

Thanks, Ferdinand, and by the way in my opinion the name of the engine is one of the best possible names in computer chess