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 as ECO B03, reached after 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 is a line of the Alekhine Defense. White is to move.
This exact move order didn't appear in our sample of 12.6 million Lichess games: it's a rare line.
Engine evaluation: +0.62 (Stockfish, depth 28; best line 11. exf6 Bxf6 12. Be3 Nc6 13. Qd2 Qe7)
- ECO
- B03
- Moves
- 20 plies
- FEN
rn1q1rk1/ppp1b1pp/1n2pp2/4Pb2/2PP4/2N2N2/PP2B1PP/R1BQ1RK1 w - - 0 11- PGN
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
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Master games
2 over-the-board games are classified under this line (White 0%, draw 0%, Black 100%). The strongest:
- IM V Pranav (2519) – FM Shiroghlan Talibov (2351) 0-1 · Titled Tue 30th Aug Early · 2022-08-30
- FM Rohit S (2359) – CM Marc Balague Camps (2203) 0-1 · Titled Tue 4th Jun Early · 2024-06-04
Comes from
Alekhine Defense: Four Pawns Attack 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4
More Alekhine Defense lines (all)
- Alekhine Defense (1. e4 Nf6) B02
- Alekhine Defense: Brooklyn Variation B02
- Alekhine Defense: Brooklyn Variation, Everglades Variation B02
- Alekhine Defense: Buckley Attack B02
- Alekhine Defense: Hunt Variation, Lasker Simul Gambit B02
- Alekhine Defense: Hunt Variation, Matsukevich Gambit B02
- Alekhine Defense: Hunt Variation, Mikenas Gambit B02
- Alekhine Defense: Kmoch Variation B02
- Alekhine Defense: Krejcik Variation B02
- Alekhine Defense: Krejcik Variation, Krejcik Gambit B02
- Alekhine Defense: Maróczy Variation B02
- Alekhine Defense: Mokele Mbembe B02
Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.