Damn this was a hard one!

Originally I posted pawn @ f4
1.Be6 g5 2.Bf7# but black just plays 1...gxf5 and it doesn't work

But this does - pawn @ h2
1.h4! to cover g5 1...gxh3 e.p forced 2.Bxg6# now that the Rook covers g6

ScottieK