Philidor Defense: Hanham Variation, Krause Variation

1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.O-O

ECO C41

The Philidor Defense: Hanham Variation, Krause Variation is a chess opening line in the Philidor Defense complex, reached after 1.e4 e5 2.Nf3 d6 3.d4 Nd7 4.Bc4 c6 5.O-O.

It is catalogued under code C41 in the Encyclopaedia of Chess Openings (ECO).

The defining move O-O is chosen by White on move 5.

Do you want to learn openings?

Start with a GM-authored repertoire you study move by move, then practice against a human-like AI opponent:

• Catalan Opening
• King's Indian Defense with ...e5

Every chess term used here is defined in the chess terms glossary. Browse all opening courses or the full ECO code index.