Advance game by single move, if possible.

        @return: logical indicator if move was performed.

def move(self):
        """
        Advance game by single move, if possible.

        @return: logical indicator if move was performed.
        """
        if len(self.moves) == MAX_MOVES:
            return False
        elif len(self.moves) % 2:
            active_engine = self.black_engine
            active_engine_name = self.black
            inactive_engine = self.white_engine
            inactive_engine_name = self.white
        else:
            active_engine = self.white_engine
            active_engine_name = self.white
            inactive_engine = self.black_engine
            inactive_engine_name = self.black
        active_engine.setposition(self.moves)
        movedict = active_engine.bestmove()
        bestmove = movedict.get('move')
        info = movedict.get('info')
        ponder = movedict.get('ponder')
        self.moves.append(bestmove)

        if info["score"]["eval"] == "mate":
            matenum = info["score"]["value"]
            if matenum > 0:
                self.winner_engine = active_engine
                self.winner = active_engine_name
            elif matenum < 0:
                self.winner_engine = inactive_engine
                self.winner = inactive_engine_name
            return False

        if ponder != '(none)':
            return True