Irregular Hexadoku puzzles - 16x16 Irregular Sudoku - to play online.
Daily Medium 12×12 Giant Sudoku Puzzle for Tuesday 11th April 2023 (Medium)
Magic Word Square: Sunday Challenge: New Word Sudoku Puzzle for Sunday, 11/16/2014
Large Print Sudoku Variants: Large Print Sudoku 12x12 - 100 Hard Puzzles : Vey Difficult Sudoku Variant - Different Style of Sudoku Puzzle Book for Adults (Paperback) - Walmart.com
Extreme Sudoku For Dummies - Good 9780470116272 | eBay