Chess Board
[ECO code E48]
NIMZO-INDIAN DEF. - Rubinstein Sys.
Modern Variation

White castles short (ie. K-side), activating his King's Rook towards the half-open e-file.
Black's Queen's Knight set on QB3(c6) threatens White's isolated QP. May continue 10.B-Kt2, 11.Q-Q3.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	Kt-K2  P-B4
 2. P-QB4  P-K3	     7.	PxP    BPxP
 3. Kt-QB3 B-Kt5     8.	PxP    KtxP
 4. P-K3   0-0	     9.	0-0    Kt-QB3
 5. B-Q3   P-Q4

Example ends: Undo or Jump or Clear