Description: Dr Tetsuo's warning:
"This game is highly addictive! Play at your own risk!"

This is Dr Tetsuo. Dr Tetsuo is doing research on logical thinking and, in the process, is hoping to find some bright minds that excel above others. To achieve this, he has devised a whole multitude of diagram puzzles, called Sudoku, to test those willing to take up his challenge.

The game's characteristics and screenshots may vary according to the model of your phone.