The King's Indian has always been my favorite response to the common 1.d4 from White. The opening demonstrates hypermodernistic ideas first introduced by players like Alexander Alekhein in the early 1900s, and later made famous by players like young Robert Fischer. Rather than fighting directly to control the center, black opts for the passive approach, and inadvertently attacks the center by means of quickly developing a knight to f6, and a bishop on g7 bearing down the h8-a1 diagonal. These moves are followed by an early castle, and usually d6 to prevent White from an early pawn-rush. White gladly accepts the passive moves from White and takes his place in the center. The game will usually unfold with White attacking the Queenside, and Black attacking the Kingside. Oftentimes it is indeed a race who can finish their attack first.
This article will demonstrate how to take advantage of an ill played move by White in the King's Indian Defense. This is a game I played against a Frenchman awhile ago that was indeed noteworthy. After one poor move by White, I was able to secure a victory by sharp tactical play and making the right sacrifice.