The Colle System is a development scheme for white involving a c3-d4-e3 pawn triangle, and aiming for an e4 push with moves such as Nf3, Bd3, O-O, Re1 and Nbd2.
The Colle System is a development scheme for white involving a c3-d4-e3 pawn triangle, and aiming for an e4 push with moves such as Nf3, Bd3, O-O, Re1 and Nbd2.