Nimzowitsch Defence

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 (in this position the move bishop b4 leads us into the Nimzo-Indian) 4.e3 (the Rubinstein Variation is one of White’s most frequent replies to the Nimzo) O-O 5.Bd3 c5 6.Nf3 d5 7.O-O dxc4 8.Bxc4 Nbd7 9.Qe2 b6 up to this point, we can say that both players have developed their pieces. This is a fundamental principal in chess...