Vintage Portisch 4.e3-11.Ba2 Nimzo-Indian(E59)

This is the line under consideration.

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 5.Bd3 Nc6 6.Nf3 d5 7.0–0 0–0 8.a3 Bxc3 9.bxc3 dxc4 10.Bxc4 Qc7 11.Ba2

This old game is still of some relevance in 2012 but the 14.Ne1 idea should not be considered dangerous for black.


Portisch,Lajos (2630) - Sosonko,Gennadi (2575) [E59]
Tilburg (4), 1978

Critical Position 1
White is passively placed after the Ne1/f3 idea. What is the plan for black? How do you play?

Black to play

Critical Position 2
Ne5 and Rd2 are under attack. How do you react?

Black to play