1. f4
The Bird Opening (1. f4) is an uncommon flank opening where White seizes kingside space from the first move. It mirrors the Dutch Defense with reversed colors and can lead to aggressive, non-standard positions that take opponents out of their preparation.
Position after 1. f4
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Named after Henry Bird, a prominent English player of the 19th century, the Bird Opening has been used sporadically by Larsen, Nimzowitsch, and more recently by strong grandmasters looking for surprise value.