Chess Board
[ECO code E21 / 43]
NIMZO-INDIAN DEF. - Rubinstein System
Fianchetto Var. - The Keres Variation #2
White (like Black) castled, bringing his KR into play but also breaking the bishop pin on his QKt.
Black's QBPawn advance challenges White's QP. Often continues 8.Kt-R4..PxP, 9.PxP. B-Alt.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	Kt-B3  0-0
 2. P-QB4  P-K3	     7.	0-0    P-B4
 3. Kt-QB3 B-Kt5
 4. P-K3   P-QKt3
 5. B-Q3   B-Kt2
Example ends: Undo or Jump or Clear