Chess Board
[ECO code E54]
NIMZO-INDIAN DEF. - Rubinstein Sys.
The Smyslov Variation

White's bishop under attack on Q3(d3) exchanged, removing Black's doubled QBP on QB4(c4).
Black develops his Queen to K2(e7) for ..R-Q1 and defends his QBP, enabling a B-for-Kt trade. B-Alt.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	B-Q3   P-B4
 2. P-QB4  P-K3	     7.	0-0    PxBP
 3. Kt-QB3 B-Kt5     8.	BxP    Q-K2
 4. P-K3   0-0
 5. Kt-B3  P-Q4

Example ends: Undo or Jump or Clear