Sudoku Checker: Usage example: "@nsoga0416" The difficulty level of the introduction was 509.
“Sudoku Checker”, an R2o convenient tool, is an application for checking whether or not a self-made Sudoku® puzzle can be solved.
At the time of verification, the "degree of difficulty" is calculated by a unique calculation method.
As a result of examining the question introduced by "@nsoga0416" 's Twitter "It seems to be the world's hardest sudoku", the "degree of difficulty" was 509.
(Sorry to use it without permission)
It is quite a difficult task.
( https://twitter.com/nsoga0416/status/1141261307628285952 )
"Sudoku Checker" is a free app that works on iPhone / iPad.
https://apps.apple.com//app/id1458321132
Download it from the App Store and use it.
« ナンバープレース検証ツール：活用事例：曽我統一さん紹介の難易度は509でした。 | トップページ | Sudoku Checker: Ejemplo de uso: "@nsoga0416" El nivel de dificultad de la introducción fue 509. »
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« ナンバープレース検証ツール：活用事例：曽我統一さん紹介の難易度は509でした。 | トップページ | Sudoku Checker: Ejemplo de uso: "@nsoga0416" El nivel de dificultad de la introducción fue 509. »
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