ECO C42 · Petrov's Defense

Petrov's Defense: Cochrane Gambit, Bishop Check Line

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. Bc4+

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

5… d5−1.24

Black is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Petrov's Defense: Cochrane Gambit, Bishop Check Line (C42), reached after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. Bc4+, Stockfish 18 recommends 5… d5 for Black. Black is clearly better (−1.24).

Top engine moves

  1. −1.245… d5 6. exd5 Bd6 7. O-O Re8 8. d4 Kg8 9. Bg5 Bf5 10. Bb3
  2. −0.565… Be6 6. Bxe6+ Kxe6 7. d4 Kf7 8. Nc3 c5 9. d5 Qe8 10. O-O
  3. −0.435… Ke8 6. d4 c5 7. c3 Nc6 8. O-O Be7 9. Na3 a6 10. Re1

Frequently asked questions

What is the best move in the Petrov's Defense: Cochrane Gambit, Bishop Check Line?
After 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7 Kxf7 5. Bc4+, Stockfish 18 at depth 18 recommends 5… d5 for Black, continuing 6. exd5 Bd6 7. O-O Re8 8. d4 Kg8 9. Bg5 Bf5 10. Bb3. Black is clearly better (−1.24). The next best moves are 5… Be6 (−0.56) and 5… Ke8 (−0.43).
Is the Petrov's Defense: Cochrane Gambit, Bishop Check Line a good opening?
Stockfish rates the position at −1.24: black 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 Petrov's Defense: Cochrane Gambit, Bishop Check Line?
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+).