Keys "s"=save "l"=load "b"=back once
J L Naylor and E Ower, 1925.
For this applet, I have the units of a mated player still able to give check. Otherwise it would be possible to escape check by mating the appropriate opposing king. Also, if mate is lifted the opponent could actually capture your king.
Bodlaender on Neo Chess
Hans 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!