Description: Rearranging the ninth house is an ancient one-man puzzle game. It is said that the ninth palace originated from the romance of The Three Kingdoms in ancient China
The intelligent toy "hua rong dao", designed by guan yu yi, later spread to Europe and turned the characters into Numbers. The original
The problem of rearranging the ninth house is this: the number 1 ~ 8 is arranged in any order in the grid array of 3´ 3, leaving an empty space
Lattice. The number adjacent to the space is allowed to move from above, down, left, and right to the space. The ultimate goal of the game is to pass
Move the number 1 ~ 8 by line. In general, the problem of rearranging n2 is to follow the number 1 ~ n2-1
In any order, in the grid array of n´ n, leave a space. Allow contiguous Numbers from top, bottom, left, right
Four directions are moved to the space. The ultimate goal of the game is to move the initial state to the target state by legal movement.
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