
Sudoku Variety Puzzle Book for Adults and Seniors. Easy to Hard Level. All rules explained in the book.6 types of Sudoku games: 36 regular sudoku, 36 Hyper Sudoku, 24 X (diagonal) Sudoku, 36 Stairstep Sudoku, 12 16x16 Sudoku, 12 Samurai Sudoku. You will find solutions included...