Wonderful mini SUDOKU Board Game! From now on, you can play your SUDOKU Electronic Game any time. yes, It is so small, you can link it SUDOKU Game Board with your keys as a key chain. Just to enjoy the pleasure from SUDOKU Electronic Game at anywhere and anytime you like.

Features:  

• Mini SUDOKU Electronic Game Player Key Chain:  Brand new and high quality!!
• Such SUDOKU Puzzles are also  Key Chains, specialy designed for you carry convniently!
• Take such SUDOKU Board Game Key Chain Toys to spend your leisure time,
• Input six number form 1 to 6 to a square with size of 6*6, and avoid repeating number either in each line or each column
• NO/OFF: power switch
• Start/solve: entering the choosing mode, start SUDOKU Electronic Game or solve game
• Clear/help: Delete number or game clue
• Set: entering or quit the number input mode
• Left: moving cursor left
• Right: moving cursor right
• UP: moving cursor up or increasing the number
• Down: moving cursor down or decreasing number
• Sound: turn the sound on/off
• Pause: game pause