So you think you're tough enough? This collection of puzzles was created for only bravest sudoku solvers. Many may attempt to master them but only the sharpest minds will succeed. So put your sudoku skills to the ultimate test and see if you're tough enough for these dangerously devious puzzles. But if you find yourself pulling out your hair in frustration, don't say we didn't warn you. Features:· 100 very challenging puzzles· Edited by legendary New York Times crossword editor Will Shortz· Big grids with lots of space for easy solving
- ISBN10 0312681461
- ISBN13 9780312681463
- Publish Date 15 February 2011
- Publish Status Active
- Publish Country US
- Imprint Saint Martin's Griffin,U.S.
- Format Paperback (UK Trade)
- Pages 128
- Language English