Saturday, August 1, 2026

Surprise!, ChessKISS 1.9

You never know when a new version is going to be released, some weeks ago I tried to recover the project almost 4 years later and here we go!, version 1.9

From readme.txt:

01/08/26 1.9

-Some small performance improvements generating play, evaluating and checking repetitions
-Scores and now inserted into TT as relative to mate
-Many small bugs fixed (like far bonus on ending games and pawn cache issues with passers)
-King defense was not always calculated
-Added Late Move Pruning
-Completely changed how the engine handles the commands (bunch of if's VS hashmap and callbacks)
-ThreatPenalty table was missing values in pawn vs knight and rook vs queen
-Small adjustments in mobility scores
-Better time management
-Bad capture pruning when AlphaBeta (like in quiescent)
-Better aspiration window management
-Add quiescent scores into transposition table

Find a copy at https://drive.google.com/file/d/111cXD-dgMk8mIzSlRxoIYphrXLpyxvHP/view?usp=sharing

Thanks!