"Alex Brunetti" wrote in rec.games.chess.analysis:
If you say so, you should demonstrate that Black din't play h7 x
something-at-g6 or f6 x something-at-g5.
So, the easiness is not so easy
I don't want to be a spoilsport, but from neither the board nor the FEN
you can deduct an en passant possibility.
If the position is:
b1b1bR1B/1b1b1P1k/b1b1N2p/1Q1R1KpP/8/8/4P1P1/8 w - g6 0 1
Then it's mate in one.
With the board on the site and the FEN you posted it's mate in three after
1. Bg7 Bxe6+ 2.Kf6 some bishop capture and 3. Rh8#
"I am not a crook"