If you are familar with Sudoku and get through all its levels, you'll want to challenge yourself a more difficult level, so Sukodu 2014 is a game that you're looking for. Sukodu 2014 with 3 playibg styles advances its difficulty to a whole new level.
Here are they:
Normal: the time will be counted. It is for the new player .
3 seconds: It's more difficult than the first one. In 3 seconds, you must fill a number . More than 10 wrong numbers are not allowed.
Hide: 1 line will be hiden, you must remember that line in order to complete each game.
+It's totally free
+There are more ways to play ( upload in future)
+Traditional style to play
+It's run smoothly on every devices
+It's very light
+The difficulty is advanced