The 3D Sudoku Puzzle Book: The Ultimate Sudoku Challenge
Size: 5 1/3" x 8 1/2"
3D Sudoku is the ultimate challenge for an fan of Sudoku puzzles. With three times as many numbers than normal Sudoku, follow the colored lines and complete the rows and boxes with the numbers 1-9. If you’re a fan of Sudoku, then you will love this great new collection of over 300 ultra challenging 3D Sudoku puzzles!