Jupiter

Simple chess engine written in Java. (Work in progress)

Features

• Alpha-Beta pruning optimization
• Transposition table position saving
• Move ordering optimizations
• Iterative deepening
• Quiescence search

Running

Requires an installation of JDK-21.

By default, engine thinks for 1 second before attempting to make a move.

Known Bugs

This project is a work-in-progress so these bugs may or may not be fixed.

• Transposition table size is uncapped
• Engine can sometimes move the player's pieces
• Player's king can sometimes be moved into illegal squares

TODO

• Implement checkmates, draws
• Display player's moves immediately in GUI
• Fix windows DPI scaling problems with sprites
• Improve engine's endgame performance
• Optimize: history heuristic, killer moves, pawn position evaluation, futility pruning
• Implement multithreaded move search
• Ensure that search is stopped after time limit is reached

Screenshots