Daily Sudoku: Medium Play the New York Post’s daily medium-level Sudoku puzzle online. See if you can fill in each square with a number 1-9, without repeating any number within each column or row.

A best-seller in its category, The Big Book Of Sudoku offers something for everyone. It includes more than 500 puzzles that range from easy to very difficult.

Sudoku and KenKen are logic-based puzzles that involve filling out a grid with a sequence of numbers without repeating the same number within a line or section; KenKen, however, involves some ...