Keys "s"=save "l"=load "b"=back once
Claude Chaunier and Joao Neto. When a unit moves, it repels like-colored units and attacts opposite-colored units. This does not apply to kings. Castling magnetizes the rook. There is no en-passant capturing of pawns. For now, I decided that a pawn pushed to promotion will become a queen.
There are simple illustrations rather than strong opponents.
Bug reports? -- Thank you! Keep them coming!