[ECO code C45]
The Meitner Variation
White moves his Knight from Q4(d4) to QB2(c2), increasing control of his Q4(d4). W-Alt.
White Black White Black 1. P-K4 P-K4 6. P-QB3 KKt-K2 2. Kt-KB3 Kt-QB3 7. Kt-B2 3. P-Q4 PxP 4. KtxP B-B4 5. B-K3 Q-B3
Example ends: Undo or Jump or Clear