iSutoku Pro solves any SUDOKU problems you cant solve. It can solve the problems you input and estimates the difficulty of the problem.It also displays answers if there are more than one answer.
Pro Version
-It estimates the difficulty of the problem.
---world hardest sudoku puzzle is estimated to be ten times difficult than the difficult puzzle that is sold in the bookstore.
-If there are multiple answers, it shows the existing answers
within 10 answers.
You can easily input the problems by bar or dragging numbers.
Now you can get many SUDOKU prizes using this appli! Be careful not to ruin your brain by using this app too much.