chess
pub const ALL_RANKS: [Rank; 8] = [Rank::First, Rank::Second, Rank::Third, Rank::Fourth, Rank::Fifth, Rank::Sixth, Rank::Seventh, Rank::Eighth]
=
[Rank::First, Rank::Second, Rank::Third, Rank::Fourth, Rank::Fifth, Rank::Sixth, Rank::Seventh, Rank::Eighth]
Enumerate all ranks