Thought the opponent's king was in need of a walk.
The king looked like he could do with some more walking.
Actually had not calculated hxg5#. The # I had calculated there was a longer one.

@Lenin-R-Zeppelin 6...d5 is by NO MEANS "busting" White. He maintains a very strong attack for the piece and a large positional advantage. See below:
These may not be the best moves, but it goes to show that 2...f6? is a very bad move. If anybody wants to look it up, it's known as "Damiano's Defence".

black can just bust white with 6...d5. then he misses a mate in one. ohhhh good lord!
6...d5 avoids immediate disaster, but still loses.
See #9, although 10.Qa5! is stronger than 10.Qd5: White gets back the piece and remains some 4 pawns up with much the better position.
@Lenin - Calm down dude. You have probably played chess all your life, I have been playing for about a year now. So some moves are not as obvious to me as they are to you. I saw that I was winning his queen and that was good enough for me. His king where it was and with his queen out of that way, I was as good as won there.
That being said, after the mate in 1 miss, if I play white from that position and you play black I would still win. If you think I would lose to you in that position a whole queen up, then you are just being silly.