Samurai Sudoku Puzzle Book: 1000 Hard Sudoku Puzzles Overlapping into 200 Samurai Style (Brain Games for Adults): Alzamili, Dr. Khalid: 9781695678682: Amazon.com: Books
Amazon.com: Sudoku Solver eBook : Schofield, Peter: Kindle Store
Samurai Sudoku: Multilevel Sudoku Puzzle Book with over 1000 Sudokus overlapping into 210 Samurai Sudokus in Easy, Medium & Hard: Books & Publishing, Flatline: 9798774088744: Amazon.com: Books
Amazon.com: 252 Easy to Hard Multi Sudoku Puzzles in 12 Variants: Adult Gattai (Merged) Sudoku, variations include Samurai, Sohei, Butterfly and Flower, Fun Brain ... to Keep Your Mind Active (Multi-Sudoku Books):