ECO C42 · Petrov's Defense

Petrov's Defense: Classical Attack, Tarrasch Variation

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4

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

9. cxd5+0.87

White is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Petrov's Defense: Classical Attack, Tarrasch Variation (C42), reached after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4, Stockfish 18 recommends 9. cxd5 for White. White is clearly better (+0.87).

Top engine moves

  1. +0.879. cxd5 Nf6 10. h3 Bh5 11. Nc3 Re8 12. Bg5 Nbd7 13. Bb5 a6
  2. +0.829. h3 Bh5 10. cxd5 f5 11. Nc3 Qe7 12. Bc2 Nd7 13. Re1 Qf7
  3. +0.149. a4 c6 10. h3 Bh5 11. Nc3 Nxc3 12. bxc3 dxc4 13. Bxc4 Nd7

Frequently asked questions

What is the best move in the Petrov's Defense: Classical Attack, Tarrasch Variation?
After 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 Bg4, Stockfish 18 at depth 18 recommends 9. cxd5 for White, continuing Nf6 10. h3 Bh5 11. Nc3 Re8 12. Bg5 Nbd7 13. Bb5 a6. White is clearly better (+0.87). The next best moves are 9. h3 (+0.82) and 9. a4 (+0.14).
Is the Petrov's Defense: Classical Attack, Tarrasch Variation a good opening?
Stockfish rates the position at +0.87: White is clearly better. That is a large edge for an opening position, so check the engine lines before playing it from the other side.
What is the ECO code of the Petrov's Defense: Classical Attack, Tarrasch Variation?
C42. ECO codes classify chess openings from A00 to E99; C is the volume for open games and the French Defense.

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