Sudoku addicts--this is your utopia for puzzle perfection With 336 fabulous Sudoku, divided into medium, hard, and very hard, this oversized, fun-filled collection gives solvers hours of entertainment and a chance to build their skills. Give yourself a real mental workout. Start with the solutions for four different solving strategies. Learn how to exclude options by finding a box where only one number is possible; situate the right number; recognize patterns; and do "framesecuring"--a technique that's helpful when completing the most difficult Sudoku. Created by two of the world's best puzzle masters, Sudoku-utopia offers an unforgettably challenging, mind-blowing, brainteasing, logic-building experience
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.