All ECO Codes
\
E23
E23
Nimzo-Indian Defence
Spielmann, San Remo Variation
1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.Qb3 c5 5.dxc5 Nc6 6.Nf3 Ne4 7.Bd2 Nxc5