[ECO code D46]
The Chigorin Variation
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