Object: Checkmate the opponent's King.
 
Additionally to the standard Pawn moves, any enemy piece to the Northwest or Northeast of a Pawn is immediately deleted.
If a Pawn is diagonally opposite an enemy Pawn, then the Pawn that moved last survives.
 
Apart from this, standard chess rules apply.
 
Variant 2: Any enemy piece adjacent to a Pawn is immediately deleted.
 
 
For more freeware as well as real puzzles and games see my home page http://karl.kiwi.gen.nz.