ITEM NAME:Fun Sudoku Board Game Set - Number Puzzle Digital Chess for Kid Children Math img *{margin:0;padding:0;.The Sudoku chess board with drawer features 81 pieces digital blocks with the number of 1 to 9. Sudoku board is divided into 81 square and sub-divided into 9 grids each containing 9 square. 1 Set SUDOKU Puzzle Toy.