The bishop moves any number of vacant squares in any direction diagonally. Note that a bishop never changes square color, therefore players speak about "light-squared" or "dark-squared" bishops.
Alfila diagonalki mugitzen da, hutsik dauden laukien gainetik. Alfilak ez dira inoiz kolore bateko lauki batetik beste koloreko lauki batera pasatzen; hortaz, jokalariek "lauki zuritako" edo "lauki beltzetako" alfilez hitz egiten dute.