Changes

A [[Flipping Mirroring and Rotating#Rotationby90degreesClockwise|90 degree rotation]] of the [[Chessboard]], as well as [[Flipping Mirroring and Rotating#FlipVertically|flipping vertically]] (reversed [[Ranks|ranks]]) or (exclusive) [[Flipping Mirroring and Rotating#MirrorHorizontally|mirroring horizontally]] (reversed [[Files|files]]), change the roles of diagonals and [[Anti-Diagonals|anti-diagonals]]. However, we define the main diagonal on the chess board from a1/h8 and the main anti-diagonal from h1\a8. Whether the square difference of neighbored squares on a diagonal or anti-diagonal is either 7 or 9, depends on the square mapping. We further rely on [[Square Mapping Considerations#LittleEndianRankFileMapping|little-endian rank-file mapping]].