Chess Board
[ECO code E48]
NIMZO-INDIAN DEFENCE
Rubinstein System
White pushed his QRPawn out to QR3(a3) attacking the bishop on QKt4(b4).
Black moves his QKt5(b4) Bishop to Q3(d6) with a good game (White's QB being blocked in). B-Alt.
    White  Black	White  Black
 1. P-Q4   Kt-KB3    6.	PxP    PxP
 2. P-QB4  P-K3	     7.	P-QR3  B-Q3!
 3. Kt-QB3 B-Kt5
 4. P-K3   0-0
 5. B-Q3   P-Q4
Example ends: Undo or Jump or Clear