If you're one of those people who thinks 1.d4 always leads to dull, positional games, check out the following gem between Steinitz and Lasker at the 1896 St. Petersburg tournament. Annotations by Kasparov (this is from Chessbase's excellent DVD "Kasparov: How to Play the Queen's Gambit". If you play 1.d4, I highly recommend getting the DVD).
This is a very exciting game :)
1 year ago