ECO A04

Zukertort Opening: Black Mustang Defense

Zukertort Opening: Black Mustang Defense is a chess opening classified under ECO A04. Its defining line here is 1. Nf3 Nc6.

Zukertort Opening: Black Mustang Defense — board position

1. Nf3 Nc6

The diagram shows the position after 1. Nf3 Nc6. Play through it move by move in the interactive explorer.

Opening name, ECO code, and main line come from the Lichess open chess openings dataset.

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