Jump straight into the world of electronic Sudoku. No more paper puzzles needed. This game is a Sudoku game following the standard Sudoku rules. It comes with tons of levels and five difficulty settings. It offers some convenient options to enter the numbers (mini numbers as hints and different colors for trial runs). Full undo support is available (allows undo of all actions, including color change or 'delete all'). Sudoku game features: * 5 difficulty levels with 1000+ games each * Input su