Check out Grant Acedrex, our featured variant for April, 2024.
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Keys "s"=save "l"=load "b"=back once
You are White. Each side must protect one pawn and one other piece secretly assigned to be royal, in addition to the king. Your royal pawn does not promote. Black balls mark units known by the opponent not to be royal. Ralph Betza, 1978.
These are simple illustrations rather than strong opponents.
Bug reports? -- Thank you! Keep them coming!
Written by Ed Friedlander