Chess Board
[ECO code E01]
The Tarrasch-Catalan Variation

White's fianchettoed KB took control of the long light-squared diagonal and threatened Black's QP.
Black advances his Queen's Bishop's Pawn to QB4(c5). The Tarrasch response is similar to the Tarrasch Defence move in a QGD. B-Alt.
	White   Black
 1.	P-Q4	Kt-KB3
 2.	P-QB4	P-K3
 3.	P-KKt3	P-Q4
 4.	B-Kt2	P-QB4

Example ends: Undo or Jump or Clear