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How to Solve Sudoku |
A sudoku puzzle consists of a 9 × 9–square grid subdivided into
nine 3 × 3 boxes. Some of the squares contain numbers. The object is
to fill in the remaining squares so that every row, every column,
and every 3 × 3 box contains each of the numbers from 1 to 9 exactly
once.
Solving a Sudoku puzzle involves pure logic. No guesswork is
needed—or even desirable. Getting started involves mastering just a
few simple techniques.
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