Variations of sudoku puzzles.

Will We Ever Run Out of Sudoku Puzzles?

How to Solve Sudoku Puzzles – A Complete Walkthrough, Part 1

Types of Sudoku puzzles

Types of Sudoku puzzles

Possibly the craziest puzzle I've ever creater. A mix of 5 different sudoku variants in one puzzle, Samurai Style! A MU…

Types of Sudoku puzzles

All puzzle types

Irregular Sudoku Puzzles (Fun With Sudoku #355, #356)

Overlapping Sudoku Puzzles Medium to Hard: 9 Different Multi-Sudoku Variants: SomatoMint: 9798647617156: : Books

Beta Beginner Sudoku Puzzles: 500 Beginner Sudoku Puzzles and Answers Beta Series Volume 7: Easy to See Large Clear Print (Paperback)