def get_all_moves(coord):
    """ Return a list of all coordinates reachable from this one """
    return [{'x': coord['x'], 'y': coord['y'] + 1}, {'x': coord['x'], 'y': coord['y'] - 1}, {'x': coord['x'] + 1, 'y': coord['y']}, {'x': coord['x'] - 1, 'y': coord['y']}]