Jeremy Rand has released his 2015 Hackfest entry, Sudoku for the Apple II. The posting, from the KFest mailing list includes all of the source code for the project as well as the Apple II emulator ready DSK disk image.
A video of the program in action has been posted by the Kansasfest comittee to YouTube:
Additional features have been added to the program post Kansasfest and the latest disk is available for download now. For more information about the project, you can go to the Github page for Apple II Sudoku at:
The disk image can be downloaded from: