ITEM NAME:Sudoku Puzzle Number Chess Game Kids Math Logical Thinking Intelligent Toys Description: 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 kids children educational board game toy for numberà ¯Ã‚ ¼Ã… ’mathand mathematical puzzles and intelligent training taching aids Come with english instruction book containing 60 puzzles of all levels of difficulty - so there is something for everyone. Intelligence Toy to exercise kids brainà ¯Ã‚ ¼Ã… ’the use of logic and reasoningà ¯Ã‚ ¼Ã… ’sample logic and ever-changing digital arrangement Material: Plastic Noteà ¯Ã‚ ¼Ã… ¡Small Partà ¯Ã‚ ¼Ã… ’Choking Hazard, Please be use under adult guardianship directly Specification: Chess Boardà ¯Ã‚ ¼Ã‹ †L/W/Hà ¯Ã‚ ¼Ã¢ € °Approx. 25.5 x 24 x 1.5cm/ 10.03 x 9.44 x 0.59 inch Digital Blocksà ¯Ã‚ ¼Ã‹ †L/W/Hà ¯Ã‚ ¼Ã¢ € °Approx. 1.6 x 1.6cm/ 0.62 x 0.62 inch What you need to do is fill the empty square with the numbered blocks and to make sure that each rowà ¯Ã‚ ¼Ã… ’each column and each 3X3 grid contains the numbers 1 to 9 and every number do not repeat in each each rowà ¯Ã‚ ¼Ã… ’each column and each 3X3 grid. Package Includes: 1 Set SUDOKU Puzzle Toy Note: This product must be use under adult guardianship directly. This product contains small partsà ¯Ã‚ ¼Ã… ’do not eat in order to avoid danger suffocationà ¯Ã‚ ¼Ã… ’not suitable for children under the age of 3..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.