Your best move

Post your best single move (not game) you have played on this site.

I think this is mine:

http://www.chess.com/echess/game.html?id=25219787

well i had lots of good moves wich changed the course of (usually) a loseing game, but unfortunately since i have no premium acount i just had acces to several of them.

i think this would be mine (almost):

http://www.chess.com/echess/game.html?id=30069155

interestingly, the 2500 rated computer analysis engine didn't find the 2nd one, let me know if i missed something.

I think this is probably one of mine:

I guess this is mine, or at least that I found glancing through my archive. It's not a great example because the game was already as good as won for me and my opponent could have avoided it, but everyone loves a queen sac.

this is the only on I can think of( p.s. I can't get the original game, because I don't pay for membership, and games only go so far back);