The Nimzo Indian Defense is an extremely solid defense that is seen at all levels of play. Many players playing as white will try different variations to try to avoid going into the Nimzo Indian Defense lines.
Black looks to double up the pawns on the c-file in exchange for his dark square bishop. With the knight on c3 the key defender of the e4 square, black really starts to focus his energy on controlling the e4 and the light squares.
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 b6 5.Ne2 Bb7 6.a3 Be7 7.d5 O-O
8.Ng3 d6 9.Be2 c6 10.e4 Na6 11.dxc6 Bxc6 12.b4 Nc7 13.O-O Qb8
14.Be3 b5 15.a4 bxc4 16.b5 Bb7 17.Bxc4 d5 18.exd5 Ncxd5
19.Nxd5 Nxd5 20.Bxd5 Bxd5 21.Nf5 Bf6 22.Bd4 exf5 23.Bxf6 Qb7
24.Ra3 gxf6 25.Rg3+ Kh8 26.Qd4 Qe7 27.Qxd5 Qe6 28.Qd4 Rfd8
29.Qh4 Rg8 30.Rd1 Rg4 31.Rxg4 fxg4 32.h3 Rg8 33.hxg4 Rxg4
34.Qh6 Qe7 35.a5 Rg6 36.Qh3 Qe2 37.Qd3 Qg4 38.g3 Qh3 39.Qf3 h5
40.b6 axb6 41.axb6 Qc8 1-0