Recent versions of Chrome, Firefox, and Edge do not support Java. Internet Explorer and Safari should still support it. Besides that, recent versions of Java will block this script unless you add https://www.chessvariants.com to your Java exceptions list. You should find this in the Security tab of your Java control panel.
Keys "s"=save "l"=load "b"=back once "c"=cheat "iwin"=I win "ilose"=I lose
Kriegspiel variant from Canada, 1969-70. You know only
where your opponent has last moved. Win by capturing the king.