Favorite Chess Game?

Question

What's your favorite chess game from a GM?

My favorite one is Vassily Ivanhuk's game against Sergey Karjakin, played at the Amber Tournament this year, which had an amazing queen sacrifice merely for two pawns in a position that had been reached in other GM games:

http://www.chessgames.com/perl/chessgame?gid=1487929

Answer 1

The Immortal Overprotection Game.

Answer 2

Fischer vs. Tal

http://www.youtube.com/watch?v=ihJPMevm9...

Answer 3

I love the "Immortal Game" between Adolf Anderssen and Lionel Kieseritsky. It was played about 150 years ago, so it's not particularly relevant to modern chess theory, but Anderssen gives up his queen and both rooks before getting the checkmate with a bishop and both knights.