Nimzo-Indian Defense: Pawn Majority Parade!

Position after 15 f3.

Since White has a queenside pawn majority
and space advantage, his ultimate aim is
to advance and create a passed pawn on
that wing.

Silicon Suspire!?:



Position after 15 f3.

15 ... Rfd8 16 Bd3 Kf8 17 Rhe1 h5
18 a4 h4 19 Ne4 Ke7 20 Nxf6 Kxf6
21 a5 d5.
15 ... Rfc8 16 Nb5 Ne8 17 Bd3 h5
18 Rhc1 h4 19 Ke3 d5 20 c5 Kf8
21 a4 bxc5.
15 ... d6 16 a4 Rfb8 17 a5 d5
18 c5 bxc5 19 dxc5 a6 20 Na4 Bc6
21 Nb6 Ra7 22 Re1.
15 ... h5 16 Nb5 Bc6 17 Nd6 Ne8
18 Nxe8 Rfxe8 19 a4 Bb7 20 a5 d5
21 c5 bxc5.



Position after 15 f3.

15 ... Rfb8 16 Bd3 Rd8 17 Rhe1 Kf8
18 a4 h5 19 a5 d5 20 c5 bxc5.
15 ... h6 16 Bd3 d6 17 a4 Rfd8
18 Rhe1 Kf8 19 a5 d5 20 c5 bxc5
21 dxc5 d4 22 Ne4.
15 ... Bc6 16 Bd3 Rfd8 17 Rhb1 Rac8
18 a4 Kf8 19 Nb5 Bxb5 20 axb5 d5
21 c5 Rc7.
15 ... d5 16 c5 bxc5 17 dxc5 a6
18 Bd3 e5 19 Rhe1 Rfe8 20 a4 d4
21 Ne2 Rac8 22 Ng3.

White to move:



White’s queenside space advantage and
c-file domination call for an attack on
the weakened b6 and a4 pawns.
Nonetheless, the d7 bishop is covering a4.
It’s also protecting b6 by preventing Rc6.
It’s therefore logical for White to eliminate
this good defensive bishop by offering his
own bad one: 1 Bb5!
Following the inevitable exchange, White
will play Rc6 and Qb5 to expose the Black
position to significant pressure.

White to move:



1 Qxb8 is obvious because after 1 … Rxb8 2 Rc1
followed by 3 Rc7, White’s rook is powerfully
placed on the only open file.