Will Shortz has been crossword editor of The New York Times since 1993 and has released a new puzzle book with 200 hard Sudoku puzzles.
His latest Sudoku puzzle book is called Will Shortz Presents Ferocious Sudoku: 200 Hard Puzzles includes:
-200 hard puzzles
-Perfect portable size
-Big grids for easy solving
Tags: Puzzle | Sudoku