Black does not develop the light-square bishop after 1. d4 d5 2. Nf3 because he intends to meet 3.e4 with 3...e5, when Black will have a good game. Black has several moves that achieve equality or even an advantageous position: 1...Nf6 is the most common reply and leads to a symmetrical position; 1...c5 transposes into a King's Indian Defence, which is a very popular opening for Black; 1...g6 (the Nimzo-Indian Defence) also leads to equality; or 1...dxe4 (the French Defence), when Black obtains good compensation for the pawn.