Alekhine's Defense (1. e4 Nf6)
Modern Variation (4. Nf3)
ECO B04
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3
White develops naturally without overextending with c4, preserving harmony while challenging Black's knight outpost.
Four Pawns Attack
ECO B03
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4
White aggressively seizes massive space with four central pawns. Black's strategic aim is to fracture this overextended center.