The Super Sudoku Book For Smart Kids: A Collection Of Over 200 Sudoku Puzzles Including 4x4's, 6x6's, 8x8's, and 9x9's That Range In Difficulty From Easy To Hard!: Guido, Zack: 9781950601035: Amazon.com:
Android] Sudoku - The Clean One - Dustland Design - YouTube
Sudoku - The Clean One on the App Store
GitHub - Nikas36/sudoku-solver: A Python Script that automatically solves sudokus on the app 'Sudoku - The Clean One'.