ECO B03 · Alekhine Defense

Alekhine Defense: Four Pawns Attack, Fianchetto Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g6

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White to move. The arrow shows Stockfish’s best move.
Best move

6. Nc3+0.80

White is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Alekhine Defense: Four Pawns Attack, Fianchetto Variation (B03), reached after 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g6, Stockfish 18 recommends 6. Nc3 for White. White is clearly better (+0.80).

Top engine moves

  1. +0.806. Nc3 Bg7 7. Be3 dxe5 8. dxe5 Qxd1+ 9. Rxd1 Bg4 10. Rd2 Nc6
  2. +0.766. Nf3 Bg7 7. Be2 O-O 8. O-O dxe5 9. fxe5 c5 10. d5 Bg4
  3. +0.756. Be2 Bg7 7. Nf3 Bg4 8. h3 Bxf3 9. Bxf3 Nc6 10. d5 Nb8

Frequently asked questions

What is the best move in the Alekhine Defense: Four Pawns Attack, Fianchetto Variation?
After 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g6, Stockfish 18 at depth 18 recommends 6. Nc3 for White, continuing Bg7 7. Be3 dxe5 8. dxe5 Qxd1+ 9. Rxd1 Bg4 10. Rd2 Nc6. White is clearly better (+0.80). The next best moves are 6. Nf3 (+0.76) and 6. Be2 (+0.75).
Is the Alekhine Defense: Four Pawns Attack, Fianchetto Variation a good opening?
Stockfish rates the position at +0.80: white is clearly better. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the Alekhine Defense: Four Pawns Attack, Fianchetto Variation?
B03. ECO codes classify chess openings from A00 to E99; B is the volume for semi-open games (other than the French).

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).