Keys "s"=save "l"=load "b"=back once
One square is chosen at random after each move. If there is a unit, except a king, on that square, the unit changes sides.
Since this is a computer rather than a physical chess set, units can turn regardless of what is already off the board.
I decided that a unit that turns cannot capture the enemy king immediately afterwards.
Chess -- Hans Bodlander
Bodlaender's Chess Variants
Hans Bodlaender's Chess Applet
Ed's Chess Variants
These are simple illustrations rather than strong opponents.
Bug reports? -- Thank you! Keep them coming!