Keys "s"=save "l"=load "b"=back once
The queen moves one square diagonally only, except she can jump two diagonally on her first move, but may not capture when jumping. Bishops move two squares diagonally, able to jump. Pawns promote only to queens and may also make the jump on the first move. There is no castling, but the king can leap if he has not been in check. Bare king wins for the player whose king is bared. A stalemated player wins. I did not use the multiple K+Q+P move.
Thanks to cyberfriend Peter for help with the debugging.
Historic Chess Variants
These are simple illustrations rather than strong opponents.
Bug reports? -- Thank you! Keep them coming!