M-Sudoku classic logical game. Think and enjoy. App features: More than 30000 sudoku! All sizes sudoku: 4x4 (for children), 9x9, 16x16, 25x25. Simple, easy, useful and user friendly interface. Compatibility with any android devices version 2. 3 Gingerbread and higher. Suports all screen sizes. Supports touch screen, trackball and keyboard.