Chess Board
[ECO code E20]
NIMZO-INDIAN DEFENCE - Kmoch Var.
Kieninger Variation
White's QKtPawn exchanges B-for-Kt on QB3(c3).
Black develops his Queen's Bishop to Q2(d2) and unpins his QKt, with a slight advantage.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	P-QR3  BxKt ch
 2. P-QB4  P-K3	     7.	PxB    B-Q2!
 3. Kt-QB3 B-Kt5
 4. P-B3   P-Q4
 5. Q-R4 ch Kt-B3
Example ends: Undo or Jump or Clear