Numbers are logged counterclockwise beginning from the top-left.
        See module hexgrid (https://github.com/rosshamish/hexgrid) for the tile layout.

        :param numbers: list of catan.board.HexNumber objects.

def _log_board_numbers(self, numbers):
        """
        Numbers are logged counterclockwise beginning from the top-left.
        See module hexgrid (https://github.com/rosshamish/hexgrid) for the tile layout.

        :param numbers: list of catan.board.HexNumber objects.
        """
        self._logln('numbers: {0}'.format(' '.join(str(n.value) for n in numbers)))