Sudoku Checker: Case study: @15npken's advanced questions
We introduce the verification case of the actual question by "Sudoku Checker".
Sudoku Cheker is a handy tool to verify if a question is a "solvable question" or not when you create a Sudoku.
When verifying the question of 2019/6/15 of @15npken's Twitter
The "degree of difficulty" was 261.
(Thank you for verifying it)
According to the Twitter, the question was "You can solve it without using the hypothesis method." However, the R2o-style handy tool "Sudoku Checker" used to be the number of difficulty levels using the hypothesis method. I am keenly aware that there is still room for improvement.
Sudoku Checker is a free smartphone app.
Download from the App Store and install.
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