https://www.apkmirror.com/apk/easybrain/sudoku-2/sudoku-2-2-1-4-release/sudoku-com-free-game-2-1-4-android-apk-download/
Just downloaded the Sudoku.com - classic sudoku 2.1.4 (noarch) (Android 4.1+) APK from @APKMirror