Nimzo-Indian 4.Qc2 c5 5.dxc5 Qc7 Trends 2013
From TWIC 950
The 4…c5 line is now very popular. White achieved nothing against black’s solid formation and needed some cooperation before turning the game around with a kingside attack.
Bocharov,D (2614) – Tunik,G (2437)
4.Qc2 c5 5.dxc5 Qc7 6.Nf3 Bxc5 7.g3 [E38]
Dvorkovich Mem 2013 Taganrog RUS (3.9), 17.01.2013
The attack is well underway on the kingside. How should white continue now?
White to Play