Chess opening · ECO A04
Zukertort Defense: Sicilian Knight Variation
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1. Nf3 Na6 2. e4 c5
Zukertort Defense: Sicilian Knight Variation is catalogued under ECO code A04. It is reached after 2 moves (4 half-moves): 1. Nf3 Na6 2. e4 c5. After the last move it is White to play. White opens 1. Nf3. It is a named variation of the Zukertort Defense, which has 2 catalogued lines in total.