With the right Sudoku tips, tricks and strategies, you can ace the puzzle every time! Here's your chance to become a Sudoku pro. Whether you’re a total beginner with no clue at all as to how to solve ...

I suspect that among the readers of this column, few are unfamiliar with Sudoku. The same cannot be said about Sudokill, a game invented for a graduate class I teach. Sukokill is a two-person game in ...

Normal Sudoku rules apply, except the numbers in the cells contained within grey lines add up to the figures in the corner. No number can be repeated within each shape formed by grey lines. For a ...

Normal sudoku rules apply, except the numbers in the cells contained within dotted lines add up to the figures in the corner. No number can be repeated within each shape formed by dotted lines. For a ...

The puzzle is called the Miracle Sudoku and it’s made by fellow puzzle legend Mitchell Lee. And here are the special rules: “Any two cells separated by a knight’s move or a king’s move (in chess) ...