Sudoku: 600 Puzzles. 300 Hard and 300 X-Hard: Handy Sudoku Series Book in Bloomington, MN

Move your playing to the next level with Tom Handy's "Handy Sudoku Series" book of 600 puzzles. Containing 300 hard and 300 x-hard difficulty with 4 puzzles per page and plenty of space for notes. Solutions to each puzzle are printed at the end of the book. 8.5" x 11" 210 pages.