Sudoku game is a addictive number puzzle game that has taken the UK by Storm and is now taking over all of the world. It is branded by many as "the hottest puzzle since the Rubiks Cube". Studies show that playing Sudoku can improve memory, mind clarity, and even stop and prevent brain illnesses such as Alzheimer. Therefore there are some scientists and researchers recommending playing Sudoku, as port of our regular daily activity. Now we have more than 11 models of Sudoku game avalaible for you. We can provide more than 5000 pcs in December wthin 2 working days after confirmation, we can provide manual in French, German, Italian, Spainish and other language as requested. Features: 1) Over 1, 000, 000 puzzles built-in 2) Different levels for choice 3) Direct number pad input 4) 4. 2 game modes, timer / step count mode 5) Auto-power-off 6) Pause function with indication 7) Melodies for start and game over 8) Sound on/off selection 9) Low power consumption 10) Clock display (12 / 24 hours) 11) Alarm function