Tree path 9 levels King's Pawn Game › King's Knight Opening › Petrov's Defense › Petrov's Defense › Petrov's Defense › Petrov's Defense › Petrov's Defense › Classical Attack › Marshall Variation
- Chess Codex
- King's Pawn Game C20
- King's Knight Opening C40
- Petrov's Defense C42
- Petrov's Defense C42
- Petrov's Defense C42
- Petrov's Defense C42
- Petrov's Defense C42
- Classical Attack C42
- Marshall Variation C42 you are here
Petrov's Defense: Classical Attack, Marshall Variation
Overview
Petrov's Defense: Classical Attack, Marshall Variation is a named branch in the Open Games group of chess theory, classified under ECO C42.
The Open Games group covers open games — classical 1.e4 e5 openings where both sides contest the centre directly with pawns.
It begins with 12 plies and takes 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 to reach the canonical position.
In the opening tree, this line branches off from Petrov's Defense: Classical Attack, part of the broader King's Pawn Game system.
2 named variations grow from this line, including Petrov's Defense: Classical Attack, Staunton Variation, Petrov's Defense: Classical Attack, Tarrasch Variation.
Together the deeper variations number 4 across the full subtree.
Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.
- ECO code
- C42
- Group
- Open Games (C)
- Plies
- 12
- Direct variations
- 2
- Total in subtree
- 4
This overview is generated automatically from the opening's metadata. A more detailed, human-written description is on the way — and you can speed it up by suggesting one yourself.
Statistics from Lichess
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Source: Lichess Opening Explorer · cached
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