ECO B03 · Alekhine Defense

Alekhine Defense: Exchange Variation, Voronezh Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. Be3 Bg7 8. Rc1 O-O 9. b3

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

9… e5+0.32

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Alekhine Defense: Exchange Variation, Voronezh Variation (B03), reached after 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. Be3 Bg7 8. Rc1 O-O 9. b3, Stockfish 18 recommends 9… e5 for Black. White is slightly better (+0.32).

Top engine moves

  1. +0.329… e5 10. Nf3 Nc6 11. Be2 Bg4 12. O-O Bxf3 13. Bxf3 exd4 14. Bxc6
  2. +0.569… Re8 10. Be2 e5 11. dxe5 dxe5 12. c5 N6d7 13. Nb5 Nc6 14. Nf3
  3. +0.729… Bd7 10. Be2 d5 11. c5 Nc8 12. b4 a6 13. a4 Nc6 14. Nxd5

Frequently asked questions

What is the best move in the Alekhine Defense: Exchange Variation, Voronezh Variation?
After 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. Be3 Bg7 8. Rc1 O-O 9. b3, Stockfish 18 at depth 18 recommends 9… e5 for Black, continuing 10. Nf3 Nc6 11. Be2 Bg4 12. O-O Bxf3 13. Bxf3 exd4 14. Bxc6. White is slightly better (+0.32). The next best moves are 9… Re8 (+0.56) and 9… Bd7 (+0.72).
Is the Alekhine Defense: Exchange Variation, Voronezh Variation a good opening?
Stockfish rates the position at +0.32: white is slightly 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: Exchange Variation, Voronezh 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+).