Will Shortz Presents Serious Sudoku: 200 Hard Puzzles (Paperback)

from Fred

This book is not for beginners or impatient solvers. The puzzles are very difficult, and on first glance appear unsolvable. But your patience, skilled observations and clever inferences will eventually unlock their secrets. The book is large print, small enough to hold in your hand, and easy t...

from DoYouReallyNeedThat

One puzzle per page. Font/printing is large/clear.

from Fred

This book is not for beginners or impatient solvers. The puzzles are very difficult, and on first glance appear unsolvable. But your patience, skilled observations and clever inferences will eventually unlock their secrets. The book is large print, small enough to hold in your hand, and easy t...

from DoYouReallyNeedThat

One puzzle per page. Font/printing is large/clear.