B03
Alekhine Defense: Four Pawns Attack, Korchnoi Variation
1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nc3 e6 8. Nf3 Be7 9. Be2 O-O 10. O-O f6
The Alekhine Defense: Four Pawns Attack, Korchnoi Variation is a chess opening classified under ECO code B03. It is reached after the moves 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nc3 e6 8. Nf3 Be7 9. Be2 O-O 10. O-O f6.
It belongs to the Alekhine Defense family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
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