I usually host this module weekdays 10 am through 3 pm pacific time.

View the revision history.

• Now testing for check and pinned pieces
• You can ask the chessmaster to save a chess game or load a game and play back the moves
• Pieces can show their legal moves and which are threatened
• Custom staff to move chess pieces
• Pawn promotion and underpromotion
• Supports en passant pawn capture
• Supports castling (not yet preventing castle through check)
• Automatic piece adjustment after moves
• Move validation (all but tests for checkmate and stalemate)
• Library supports any board scale a piece will fit on
• Designed to be modified and reused
• Pieces announce moves as they make them
• The Chess Master keeps a move list
• The Chess Master can set up chess openings and problems
• The Chess Master can show you the openings or the solutions to the problems
• Builders can add thier own chess problems and openings using a string that follows the syntax documented in itools chess