Chess Board
[ECO code A20]
ENGLISH OPENING
Centre Variation
White develops his Queen's Knight to QB3(c3) to prevent 5..P-Q4.
Black pushes his Queen's Pawn out one square to Q3(d6) to free his QB for a fair game in prospect.
	White	Black
 1.	P-QB4	P-K4
 2.	P-Q4	PxP
 3.	QxP	Kt-QB3
 4.	Q-K3 ch	KKt-K2
 5.	Kt-QB3	P-Q3
Example ends: Undo or Jump or Clear