This book has a smaller size than most Sudoku books and is ideal for carrying with you in your pocket or purse when you are on the go. It contains a collection of 162 classic Sudoku problems, expertly designed and graded: hard - very hard - extreme.
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.