Sudoku puzzles give your brain a hard time: Every digit from 1 to 9 must appear in each of the nine horizontal rows, in each of the nine vertical columns and in each of the nine boxes. For many of us, ...

Daily puzzlers would be quick to tell you that sudoku, Wordle’s mathematical cousin, is not as easy as it looks. The small grid, found often next to a word scramble or comic strip in a print newspaper ...

Get started solving the classic number puzzle with tips from some of the best solvers in the world. By Isaac Aronow Everybody can solve a hard Sudoku. Maybe not right now, maybe not without some ...

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