Sudoku 25x25 Volume 13: Sudoku Xtra Specials (Paperback) | Little Shop of Stories
25x25 Sudoku: Keep Your Brain Active And Engaged With 100 Giant Hard Puzzles, Ultimate Sudoku Puzzle Book With Complete Solutions, Vol 10: Tahlia, Suzanna: 9798378325870: Amazon.com: Books
GitHub - huaminghuangtw/Parallel-Sudoku-Solver: 🔢 A parallelized Sudoku solver implemented with various solving algorithms in C++.
25 x 25 Suduko Puzzles: 75 Easy, Medium and Hard Sudoku Puzzles - Fry, Charlie: 9781523438945 - AbeBooks
Sudoku 25x25 50 Giant Medium Sudoku Puzzles by James, Jacob: New (2017) | GreatBookPrices