World's Hardest Sudoku Puzzle

We commissioned Austrian mathematician Wilhjelm Jodlevutzen to come up with the world's hardest Sudoku puzzle. The result was the Sudoku puzzle displayed below. Professor Jodlevutzen claims the puzzle should be graded as a 12-star puzzle.


Below is a list of Sudoku puzzlers from around the world that have contacted us with the correct solution. We think they all deserve the Sudoku Grandmaster title. Congrats to all of them!

Sudoku Grandmaster Mr. Yamamoto of Japan

Sudoku Grandmaster Ms. Lablanc of Canada

Sudoku Grandmaster Mr. Karlsson of Sweden

Sudoku Grandmaster Mrs. Palmer of USA

Check out Hard Sudoku Puzzles if you are interested in solving other hard Sudoku puzzles.

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