Petrov's Defense: Cozio Attack
1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2
5… Qe7+0.14
The position is roughly equal. Stockfish 18, depth 18.
Analyze this positionIn the Petrov's Defense: Cozio Attack (C42), reached after 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2, Stockfish 18 recommends 5… Qe7 for Black. The position is roughly equal (+0.14).
Top engine moves
- +0.145… Qe7 6. d3 Nf6 7. Nc3 Nc6 8. Bg5 Qxe2+ 9. Bxe2 Be7 10. O-O-O
- +2.085… f5 6. d3 d5 7. dxe4 fxe4 8. Nd4 Be7 9. c4 c5 10. Nb3
- +2.285… d5 6. d3 f5 7. dxe4 fxe4 8. Ne5 Qf6 9. Qh5+ g6 10. Ng4
Frequently asked questions
What is the best move in the Petrov's Defense: Cozio Attack?
After 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2, Stockfish 18 at depth 18 recommends 5… Qe7 for Black, continuing 6. d3 Nf6 7. Nc3 Nc6 8. Bg5 Qxe2+ 9. Bxe2 Be7 10. O-O-O. The position is roughly equal (+0.14). The next best moves are 5… f5 (+2.08) and 5… d5 (+2.28).
Is the Petrov's Defense: Cozio Attack a good opening?
Stockfish rates the position at +0.14: the position is roughly equal. 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: Cozio Attack?
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+).