Greater than Killer Sudoku

'Greater than Killer-Sudoku' - More Than 1,00,00,00,00,00,000 Killer-sudoku puzzles KILLER-SUDOKU PUZZLES NEVER GET REPEATED... If there is a '>', ' A perfect Killer-Sudoku is here for all sudoku lovers with amazing 4 different difficulty options i.e. 'Intermediate','Challenging','Tough' and 'Expert'. Options 1 to 4 varies from very simple, easy to hard and toughest game play. You won’t be looking for a paper puzzle ever again! * 4 difficulty options with 1,00,00,00,00,00,000 Killer-sudoku puzzles * Pencil marks with auto fill / erase * Undo and Redo * Intelligent hints * Selected digit highlighting * Incorrect entry highlighting So get ready to be puzzled... If you have any suggestion then please email us, we will definitely take care of it in our next update.