Get all three sports-related questions of varying difficulty (easy, medium and hard) and you claim the Herald hat-trick. Quiz ...

Killer sudoku is similar to the other levels in that each of the numbers 1-9 must fit into each 9-by-9 square. No number can ...

Killer sudoku is similar to the other levels in that each of the numbers 1-9 must fit into each 9-by-9 square. No number can ...

Get all three sports-related questions of varying difficulty (easy, medium and hard) and you claim the Herald hat-trick. Quiz ...

Solve the grid in this hard Sudoku puzzle! The objective of Sudoku is to fill each row, column and sub-grid with exactly one of each number from 1-9. A conflict arises if you repeat any entry in ...

Play Kiplinger Sudoku for free every day. Challenge yourself with the hard version, then see if your friends can beat your time. There's a new Hard Sudoku to try every day.

Play Kiplinger Sudoku for free every day. Try this easy Sudoku puzzle or if you fancy more of a challenge there's a hard Sudoku to tackle. There's a new easy Sudoku to play every day.

Unveiling 'World's Hardest Sudoku Book Vol. 2': 200 New Puzzles to Challenge Enthusiasts, Continuing the Bestselling Legacy. It has been a long journey, but I am confident that these puzzles will ...