Petrov's Defense: Classical Attack

An entry in the Encyclopedia of Chess Openings (ECO C42), reached after 9 half-moves: 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4.

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5…d5 14 lines
5…Nf6 1 line
- C42 Closed Variation

About this opening

Petrov's Defense: Classical Attack is an opening in the Encyclopedia of Chess Openings, classified under code C42. ECO group C (C00–C99) covers open games (1.e4 e5) and the French Defence, including the Ruy Lopez, Italian, Scotch and King's Gambit. This particular variation is reached after 9 half-moves from the starting position, with the move sequence 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4.

It belongs to the Petrov's Defense family. Within that family this is a sub-variation (the Classical Attack line).

The opening sequence in prose form: 1.e4 e5, 2.Nf3 Nf6, 3.Nxe5 d6, 4.Nf3 Nxe4, 5.d4. From this position 2 named continuations are recorded in the encyclopaedia, each leading to a distinct theoretical line.