B63 may refer to :
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Sicilian, Richter-Rauzer
The Sicilian Defence is a chess opening that begins with the following moves:
:1. e4 c5
The Sicilian is the most popular and best-scoring response to White's first move 1.e4. Opening 1.d4 is a statistically more successful opening for White be ...
, Rauzer attack, according to the list of chess openings
*
HLA-B63, an HLA-B serotype
*
Bundesstraße 63, a German road
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B63 (New York City bus)
The B63 is a bus route in Brooklyn, New York City, running mainly along Fifth Avenue and Atlantic Avenue between Fort Hamilton and Cobble Hill. Originally a streetcar line called the Fifth Avenue Line, it is now operated by the New York City ...
in Brooklyn
* 63 amp, type B – a
standard circuit breaker current rating
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