带领全村人致富 第62集 高清线上看

 (Unique 2 fill position). The solution is determined by this extension, and the layout is inward from the limit on the edge.

带领全村人致富

   This kind of number filling is not difficult, and the key to not solving it is that you need to be familiar with the rationality of numbers. The key point of the mantra is to identify which piece of the 3x3 chessboard must be filled. The following methods can make this process even more convenient.

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