C41

Philidor Defense: Nimzowitsch Variation, Klein Variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Bc4

The Philidor Defense: Nimzowitsch Variation, Klein Variation is a chess opening classified under ECO code C41. It is reached after the moves 1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Bc4.

It belongs to the Philidor Defense family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.

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