Chess Board
[ECO code E21]
NIMZO-INDIAN DEFENCE
Three Knights Variation
White exchanges Kt-for-B, his QKtPawn removing the dark bishop on QB3(c3).
Black's K3(e6) Pawn on to K4(e5) attacks White's Kt. Best continues 11.Kt-Kt5..Kt-QB3, 12.0-0..B-K3.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	KtxP   0-0
 2. P-QB4  P-K3	     7.	B-Kt2  P-Q4
 3. Kt-QB3 B-Kt5     8.	PxP    KtxP
 4. Kt-B3  P-QB4     9.	B-K2   BxKt
 5. P-KKt3 PxP	    10.	PxB    P-K4
Example ends: Undo or Jump or Clear