Hardest Sudoku

Sudoku for the hardest
This Sudoku is not for wimps. If you prefer easy levels, please pick another app. This version creates Sudoku’s with only 17 numbers. This is the lowest number for still an unambiguous solution. Other apps talk about extreme levels, but only here you’ll find the real challenge.
Some guys mentioned, the level till now is not complicated enough. So with this update, I introduce a second level. Still with 17 numbers but much more complicated than the more easy level till now. If you solve the new level without of the help of the candidates, you are a real pro.
Top-Features
- Only 2 Levels, both with the lowest numbers possible, extreme and beyond extreme!
- Use of candidates, if it’s too hard for you without
- Automatic fading out of obviously wrong candidates
- With candidates, best overview for the game
- Show and correct errors
I would be happy to get new proposals or improvements and will try to implement them into the program.
If you like my app, please write a nice comment.
Then I still wish much fun by solving new riddles again and again.