Book 2 Puzzles per page. Good fitness, warm-up, training spirit positive energy lining thé brain. 60 Sudoku killer puzzles 6x6 easy levels. 60 Sudoku killer puzzles 9x9 easy levels. 60 Kakuro puzzles 6x6. 60 Kakuro puzzles 9x9. Kakuro sudoku may be called or searche... Read throughout product description by to press on buy button.