Originally posted by slickhare
you can't possibly be worse than me in this game: Game 2654204
not to mention my stupid java malfunction won't let me resign... basically ruins my night
You need to study tactics. You missed some very basic forks and discovered checks in the game. http://www.chesstactics.org/
For example, 17...Qxe3 18. fxe3 Nxf3 and then if he captures with 19. gxf3, you have a bishop fork with Bxf3, winning the rook.
Also, your opponent put himself in an awkward position with 18. Rxb7. You could have played a similar continuation as before, but just so you get the idea, I'll present a simpler solution (though not as good in this position), 18...Nxf3 (clearing the Kings file), 19. gxf3 0-0-0, checking your opponent and winning the rook with Kxb7. This isn't as good in this position, because you'll lose the bishop, but it's just to let you know that the king can be used as an attacking piece as well.