When you make your own sudoku
"Is the question solvable?"
"Is the solution one?"
I made a smartphone app "Sudoku Checker" to find out.
It has a function to calculate the "difficulty level" with its own logic when verifying.
The hypothesis is that the difficulty level can be displayed with that value.
100-Beginner
200-intermediate
300-advanced
We have defined an index called "advanced technique level".
The number of questions that can be solved without using advanced techniques will be 0,
The higher the level of advanced technique, the more difficult it becomes.
This time, I found the question "The difficulty level is 200 even though the advanced technique is 1 or more".
There is a bug in the calculation logic and it needs to be investigated. Make a note so that you do not forget it.
Reference: If you check the Sudoku that "Live Sudoku" (@live_sudoku) introduces on Twitter without permission ...
・ Difficulty: 275
・ Advanced technique level: 2
have become.
(Click here for Twitter → https://twitter.com/live_sudoku/status/1466381277905526787 )
"Sudoku Checker" is a free smartphone app.
Please take advantage of it.
https://apps.apple.com/app/id1458321132#?platform=iphone
Download from the App Store
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