Sudoku program. Appears to be missing some support files, but basic functionality is there.
Info & QR Codes: http://wiki.hosiken.jp/petc/?Toukou%2F%A5%CA%A5%F3%A5%D7%A5%EC%20%28%A1%FB%C6%C8%29
https://petc-archive.vercel.app/petc/?Toukou%2F%A5%CA%A5%F3%A5%D7%A5%EC%20%28%A1%FB%C6%C8%29
