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我一直试图连续两天解决这个问题,但我找不到有效的算法。给定一个棋盘和一些棋子,我必须检查所述棋盘是否可以被棋子游览,条件是每个棋子只能访问一个广场一次。我知道这是某种多重回溯,但我无法让它发挥作用。(我只能为个别作品实施一般骑士之旅)

tablero是棋盘的一个类,它包含一个名称、一个棋子列表、一个包含禁止位置的列表、一个包含空闲位置的列表以及一个包含棋盘尺寸的元组。

ficha是棋子的类,它包含一个名称nombre(只前进 1)posicionmovimientos

欢迎任何见解。

这里是类(随意添加/删除任何方法)。

def legal(pos,dimensiones):
    if pos[0] >= 0 and pos[0] < dimensiones[0] and pos[1] >= 0 and pos[1] < dimensiones[0]:
        return True
    else:
        return False


class board:

    def __init__(self,name,pieces,dimention,prohibited_positions):
        self.name = name
        self.pieces = pieces
        self.dimention = dimention
        self.prohibited_positions = prohibited_positions
        self.free_positions = []
        for x in range(dimention[0]):
            for y in range(dimention[1]):
                self.free_positions.append([x,y])
        for x,y in self.prohibited_positions:
            if [x,y] in self.free_positions:
                self.free_positions.remove([x,y])
        for piece in self.pieces:
            if self.piece.position in self.free_positions:
                self.free_positions.remove(piece.position)


    def append(self,piece):
        pos = piece.position
        if pos in self.free_positions:
            self.pieces.append(piece)
            self.free_positions.remove(pos)



class piece:

    def __init__(self,name,position,move_offsets):  
        self.name=name
        self.position=position
        self.move_offsets=move_offsets
        self.possible_movements=move_offsets

    def setPos(self,pos):
        self.position=pos

    def ValidMovements(self,dim,free_positions,prohibited_positions):
        aux = []
        for i in self.possible_movements:
            newX = self.position[0] + i[0]
            newY = self.position[1] + i[1]
            newPos = [newX,newY]
            if legal(newPos,dim):
            aux.append(newPos)
        for i in list(aux):
            if i not in free_positions:
                aux.remove(i)
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