Top page

Welcome to Hakusen/Project Ojisan homepage.
It's been over five years since I started creating Android apps, simply because I enjoy seeing them work. During this time, I've had to deal with challenges like complying with Europe's GDPR and adapting to new Android OS versions. More than anything, I want to cherish the simple joy of seeing programs run.

List of topics

2026年09月12日
Hint function added to Sudoku Input and Solve
2023年01月07日
Sudoku Input and solve update
2022年01月08日
Input and Solve Sudoku
2021年02月13日
About Sudoku solver