Will Shortz Presents The Dangerous Book of Sudoku: 100 Devilishly Difficult Puzzles
Paperback
$16.99
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Are you up for the challenge? Put your sudoku-solving skills to the test with this collection of ferocious sudoku puzzles!
Features:
· 100 challenging puzzles
· Edited by legendary New York Times crossword editor Will Shortz
· Big grids with lots of space for easy solving


