https://sudoearth.app/blog/ Notes on calm software, sudoku, and building an app that keeps time with you instead of demanding your time. en-us support@sudoearth.app (Yue Hu) support@sudoearth.app (Yue Hu) https://sudoearth.app/blog/why-i-deleted-sudoku-com/ https://sudoearth.app/blog/why-i-deleted-sudoku-com/ Sat, 16 May 2026 00:00:00 GMT support@sudoearth.app (Yue Hu) On streaks, leaderboards, and the quiet game sudoku used to be — and the version of sudoku I had to build because nobody else would.