About Extreme Difficult Sudoku 2500
For those of you who aren't satisfied with regular sudoku, we've put together a seriously perplexing puzzle collection!
There are five categories to choose from—Normal, Cross, Jigsaw, Cross Jigsaw and Inequality—each with 500 puzzles each, for a total of 2500 puzzles!
It's totally free to play!
If you solve every puzzle, you may be able to become a genius!?
Download and install
Extreme Difficult Sudoku 2500 version 1.2.1 on your
Android device!
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Android package:
jp.co.ohte.extremesudoku, download Extreme Difficult Sudoku 2500.apk
by Q####:
Is it possible that some new inequality are unsolvable? Like 2001? Can't get any hint either. Video won't work.