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This is only a technicality really, but there's another way to think
about
the camel movement to put it in perspective. To use an analogy:

A camel is to a bishop as a knight is to a rook. That is, a knight moves
in an orthogonal L-shape while a camel moves in a diagonal L-shape. While
it works exactly the same way to say the camel does a (3,1) leap, it
makes
the camel fit better into the chess schema to think of it as a diagonal
analogue of a knight.

Whatev, though.