Will Shortz Presents Insomnia Sudoku: 200 Can't Sleep Puzzles (en Inglés)

Reseña del libro

Can't sleep? Grab a sudoku puzzle! When insomnia strikes, don't lay in bed and count sheep--grab a pen and get puzzling! This portable omnibus features: - 200 Easy to Hard Puzzles- Lots of space for easy solving- Edited by Will Shortz