description: This book contains 200 difficult Sudoku puzzles, including clues. An experienced Sudoku player should be able to solve one of the puzzles in under 30 minutes. That means this book can keep you occupied for 100 hours!
language: English
title: 200 Difficult Sudoku Puzzles
titlecomplete: 200 Difficult Sudoku Puzzles
ratings_count: 3
publisher: Lulu.com