Library/Openings/Zukertort Opening/Arctic Defense/Drunken Knight Variation ECO A04
Opening· 6 plies

Zukertort Opening: Arctic Defense, Drunken Knight Variation

An entry in the Encyclopedia of Chess Openings (ECO A04), reached after 6 half-moves: 1. Nf3 f6 2. e4 Nh6 3. d4 Nf7.

Zukertort Opening: Arctic Defense, Drunken Knight Variation ECO A04
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Black rook
Black knight
Black bishop
Black queen
Black king
Black bishop
Black rook
Black pawn
Black pawn
Black pawn
Black pawn
Black pawn
Black knight
Black pawn
Black pawn
Black pawn
White pawn
White pawn
White knight
White pawn
White pawn
White pawn
White pawn
White pawn
White pawn
White rook
White knight
White bishop
White queen
White king
White bishop
White rook
6/6
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End of this line

No further variations branch from this position in our database. To explore neighbouring ideas:

About this opening

Zukertort Opening: Arctic Defense, Drunken Knight Variation is an opening in the Encyclopedia of Chess Openings, classified under code A04. ECO group A (A00–A99) covers flank and irregular openings, including the English, Bird, Réti and Dutch defences. This particular variation is reached after 6 half-moves from the starting position, with the move sequence 1. Nf3 f6 2. e4 Nh6 3. d4 Nf7.

It belongs to the Zukertort Opening family. Within that family this is a level-2 branch (the Arctic Defense → Drunken Knight Variation line). The immediate parent line is Zukertort Opening: Arctic Defense, transitioned via 3…Nf7.

The opening sequence in prose form: 1.Nf3 f6, 2.e4 Nh6, 3.d4 Nf7. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.