wfreeman/pgn — pull request #3 by jubalh (2014-12-25 22:42:04+00:00)
Title: Errorcheck MoveFromCoord in case of short string

In pure algebraic coordinate notation there must be a minimum of 4
characters. So we can return an error if this is not a given.
Later we even get problem in case the user just inputted one letter
because we use [2:] and [:2] to the string.