[ECO code C15]
The Alekhine Variation
White advances his KBPawn to KB4(f4) to counter 7..P-K5, and has a slight advantage.
White Black White Black 1. P-K4 P-K3 6. KtxP Kt-QB3 2. P-Q4 P-Q4 7. P-KB4 3. Kt-QB3 B-Kt5 4. Kt-K2 PxP 5. P-QR3 B-K2
Example ends: Undo or Jump or Clear