Rigid Chess

Rigid Chess is a chess game with an interplanetary theme. You can play against the AI chess engine at six difficulty levels, play against another player, or watch engine-versus-engine matches.

Game modes and tools

Timed matches support opposing player clocks and move countdown timers. You can load and save games, and load, create and save scenarios. An algebraic notation panel records moves, and game strings can be exported, modified and imported. The game supports castling, en passant and underpromotion, and includes options to suggest or revert a move, rotate the board and display legal moves for newer players.

Board and presentation

You can adjust board lighting, the opacity of the black and white squares, and piece tint to match themes. Choose between custom 2D and 3D chess piece sets, or rotate among 60 interplanetary-themed backgrounds at adjustable speeds. On-screen objects, including the board, can be toggled individually or together; a slider controls the board display. Rigid Chess remembers settings when you change them.

Additional features

The game includes three original music tracks, extensive in-game help screens and support for dual-mouse play.