ECO B05 · Alekhine Defense

Alekhine Defense: Modern Variation, Alekhine Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4

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

5… Nb6+0.60

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Alekhine Defense: Modern Variation, Alekhine Variation (B05), reached after 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4, Stockfish 18 recommends 5… Nb6 for Black. White is slightly better (+0.60).

Top engine moves

  1. +0.605… Nb6 6. exd6 exd6 7. Nc3 Be7 8. Be3 c6 9. h3 Bh5 10. Bd3
  2. +1.725… Bxf3 6. Qxf3 Nb4 7. Qb3 a5 8. a3 N4c6 9. Qxb7 Ra6 10. Qb5
  3. +2.415… Nb4 6. Qa4+ N8c6 7. d5 Bxf3 8. dxc6 Bxc6 9. Qxb4 e6 10. Qc3

Frequently asked questions

What is the best move in the Alekhine Defense: Modern Variation, Alekhine Variation?
After 1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4, Stockfish 18 at depth 18 recommends 5… Nb6 for Black, continuing 6. exd6 exd6 7. Nc3 Be7 8. Be3 c6 9. h3 Bh5 10. Bd3. White is slightly better (+0.60). The next best moves are 5… Bxf3 (+1.72) and 5… Nb4 (+2.41).
Is the Alekhine Defense: Modern Variation, Alekhine Variation a good opening?
Stockfish rates the position at +0.60: 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: Modern Variation, Alekhine Variation?
B05. 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+).