By now you're probably familiar with Sudoku, but just in case it's a number puzzle game with the objective of filling up a grid of Numbers.
你可能很熟悉数独，它是一个填补数字栅格的智力游戏。
By now you're probably familiar with Sudoku, but just in case it's a number puzzle game with the objective of filling up a grid of Numbers.
你可能很熟悉数独，它是一个填补数字栅格的智力游戏。
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