Clericus history
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LinksInterface:
- choice of opening book style: Normal, Broad, Solid, Hypermodern, Fighter, Gambit
- editable comments to the opening book
- choice of playing style: Objective, Pessimistic, Smart (default)
- predefined program layouts (Glacier, Wood, Yellow Water, Tundra etc.)
- language settings ( just Polish and English for now )
- detailed display of evaluation
Engine:
- internal iterative deepening
- futility pruning
- late move reduction
- queen centralization bonus, inversely proportional to the number of opponent's minor pieces
- minor evaluation tweaks ( fianchetto, stonewall etc. )
- knight mobility added
- new endgame heuristics, most notably unstoppable passer detection in pawn endings
- opening book debugged
- fixed important bug in fail-low handling
Clericus 1.02 (released 15.08.2007)
Interface:
- evaluation function editor
- pieces may be moved both by dragging and clicking
Engine:
- estimated strength : about 2000-2100 Elo
(lower bound of BayesElo after Polish Chess Programs' League)
- Principal Variation Search (PVS)
- checks extended also in the leaf nodes
(otherwise scores of perpetual check are way too high)
- move sorting improved
- better criteria of resigning (customizable in the .ini file)
- fixed an evaluation asymmetry bug concerning King pressure
- some attack patterns introduced in evaluation function
Clericus 1.01
Interface:
- bigger, more readable board
- ability to create a PGN record of the game
- graphical options customizable in the clericus.ini file.
Engine:
- strength: about 1800 Elo (after ChessWar X).
- move sorting improved
- some endgame knowledge added
- pawn on 7th extension
- more detailed pawn structure evaluation
- better understanding of the defensive function of fianchettoed bishop
- improved handling of a rook traped by an uncastled King
Clericus 1.0 ( initial release - 05.06.2007 )
- Hopeless 0.46 engine inside ( about 1800 Elo )
- graphical user interface ( StringGrid + font )
- book editor
- option to undo/redo moves