'Greater than Killer-Sudoku' - More Than 1,00,00,00,00,00,000+ Killer-sudoku puzzlesKILLER-SUDOKU PUZZLES NEVER GET REPEATED...If there is a '>', '<', or, '=' between to cages, then the sum of the values in the cages must obey the relationship specified.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 wont 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 highlightingSo get ready to be puzzled...How to play - http://killersudokuonline.com/tips.htmlIf you like this game then please rate us with 5 star and good review.If you have any suggesion then please email us, we will definitely take care of it in our next update.Note - Optional facebook permissions are required just to post your score. We never post without user consent.This game is similar to 'Sudoku Free','Super Sudoku','Sudoku Master','Sudoku Plus','Sudoku Solver'.