Troy00

1. Rg7, Kxh8;
2. Rh7, Kg8;
3. g7,

Now if black move the Rook, lets say Ra8, you play Rh8, King Takes (Kxg7) and Whit takse the Rook.

If black plays Kxh7 white takes the Rook and gets a Queen (xf8)

Why? I dont get it?