Tree path 10 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 › Mason-Showalter Variation › Petrov's Defense: Classical Attack, Krause Variation
- Caissa 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
- Mason-Showalter Variation C42
- Petrov's Defense: Classical Attack, Krause Variation C42 you are here
Petrov's Defense: Classical Attack, Krause Variation
Overview
Petrov's Defense: Classical Attack, Krause Variation is a specific line in the Open Games family (ECO C42), arising from a recognised theoretical position.
The Open Games group covers open games — classical 1.e4 e5 openings where both sides contest the centre directly with pawns.
The line arises from 19 plies — specifically the moves 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Nc6 7. O-O Be7 8. Re1 Bg4 9. c3 f5 10. c4.
The line refines Petrov's Defense: Classical Attack, Mason-Showalter Variation, which traces back to the root opening King's Pawn Game.
Explore the position on the interactive board, study its real-world results from Lichess, and challenge the engine when you are ready.
- ECO code
- C42
- Group
- Open Games (C)
- Plies
- 19
This overview is generated automatically from the opening's metadata. Know this line well? Write a description — submissions are reviewed before publishing.
Statistics from Lichess
95 games · White 56.8% / Draw 9.5% / Black 33.7%
| Moves | Games | W / D / B |
|---|---|---|
| O-O | 34 | |
| Nxd4 | 25 | |
| Nb4 | 13 | |
| Bxf3 | 10 | |
| dxc4 | 7 | |
| Bh4 | 3 | |
| Bb4 | 2 | |
| Nf6 | 1 |
Source: Lichess Opening Explorer · cached 2026-09-26 03:22:48
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