Chess Board
[ECO code E30]
NIMZO-INDIAN DEF. - Leningrad Var.
Averbakh Gambit
White's QRP attacks Black's bishop on QKt4(b4).
Black's Bishop retreats to QR4(a5) maintaining the pin, for 13.P-QKt4..PxKt, 14.PxB with equality.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    7.	QPxP   BPxP
 2. P-QB4  P-K3	     8.	PxP    P-Q4
 3. Kt-QB3 B-Kt5     9.	P-K3   0-0
 4. B-Kt5  P-KR3    10.	B-Q3   P-Q5
 5. B-R4   P-B4	    11.	PxP    PxP
 6. P-Q5   P-QKt4!  12.	P-QR3  B-R4
Example ends: Undo or Jump or Clear