chess22k

A chessengine build in Java that uses the UCI protocol to communicate with graphical interfaces. Should be used with a 64 bit JRE for optimal performance. The binaries are build using Java 9 and are not compatible with older Java versions. Score is about 3000 elo.

Features

• (magic) bitboards
• transposition tables
• (internal) iterative-deepening
• killer-moves and history-heuristics for move ordering
• principal variation search
• (static) null move pruning
• razoring
• late move reductions and pruning
• futility pruning
• static exchange evaluation for move ordering and pruning
• aspiration window
• evaluation parameters tuned using the Texel's tuning method
• tapered eval
• lazy SMP
• no openingbook or endgame tablebases
• no pondering

Future

• singular extensions
• improved king safety
• ...

"Simplicity is the soul of efficiency" - Austin Freeman -