>>> myBoard = loadBoard('board.txt') # loads the specified file into a myBoard variable

>>> printBoard(myBoard)
X G T S
A M Z J
E O C M
U F E V

>>> possibleMoves((0,0), myBoard)
{(0, 1), (1, 0), (1, 1)}

>>> possibleMoves((2,2), myBoard)
{(1, 2), (3, 2), (1, 3), (3, 3), (3, 1), (2, 1), (2, 3), (1, 1)}