Chess Board
[ECO code D46]
The Chigorin Variation

White deployed his KB for 7.P-K4 and enabled 0-0.
Black rejects the popular Meran (6..PxP) and develops his King's Bishop to Q3(d6), to contest his Q4(d5) and enable castling. The position is a Black version of the Colle System. B-Alt.
    White  Black	White  Black
 1. P-Q4   P-Q4	     5.	P-K3   QKt-Q2
 2. P-QB4  P-K3	     6.	B-Q3   B-Q3
 3. Kt-QB3 Kt-KB3
 4. Kt-B3  P-B3

Example ends: Undo or Jump or Clear