Zukertort Opening: Arctic Defense, Drunken Knight Variation

1.Nf3 f6 2.e4 Nh6 3.d4 Nf7

ECO A04

The Zukertort Opening: Arctic Defense, Drunken Knight Variation is a chess opening line in the Zukertort Opening complex, reached after 1.Nf3 f6 2.e4 Nh6 3.d4 Nf7.

It is catalogued under code A04 in the Encyclopaedia of Chess Openings (ECO).

The defining move Nf7 is chosen by Black on move 3.

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• 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.