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zh Sudoku helps develop patience and persistence in problem-solving.. Take breaks if you feel stuck on a difficult puzzle..

Mobile Sudoku apps bring the classic puzzle to modern devices.. The pointing pairs technique helps identify numbers restricted to specific cells..

zh The satisfaction of completing a difficult Sudoku puzzle is unmatched.. Sudoku teaches patience and the value of systematic thinking..

zh - The goal of Sudoku is to fill a 9x9 grid so that each row, column, and 3x3 box contains digits 1-9..

The scanning technique is one of the most basic methods for solving Sudoku.. zh The key to Sudoku mastery is consistent practice and learning new techniques..

Sudoku provides a screen-free option when played with pencil and paper.. zh Start with the easiest cells that have only one possible number..

zh Use cross-hatching to eliminate possibilities across rows and columns..