Zukertort Opening: Old Indian Attack

1.
1. Nf3
2. d5
2.
3. d3

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The Zukertort Opening: Old Indian Attack is a chess opening classified under ECO code A06 (Flank openings). It is a variation of the Zukertort Opening family. Step through the moves on the board above, then play the line yourself or review it with the built-in engine.