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 ...

Click here to access the print version. 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 ...

Good Sudoku for iOS is a new app that’s launched today from veteran game developer Zach Gage aiming to reinvigorate the digital version of the popular puzzle game. The app comes with a thoughtful ...

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) ...