Types of Sudoku puzzles

The World Puzzle Federation is an international organization dedicated to puzzles. It follows the Olympic standard, and brings together puzzlers from around the world for the annual World Puzzle Championship.

Mathematics of Sudoku - Wikipedia

This Hard Logic Puzzles book is packed with the following features: , - 48 Sudoku Puzzles, - 36 Fillomino Puzzles, - 48 Battleships Puzzles, - 32

Challenging Fun Brain Teasers: Hard Logic Puzzles & Brain Games for Adults: 500 Puzzles & 12 Puzzle Types (Sudoku, Fillomino, Battleships, Calcudoku

3D sudoku: sudoku cubes, snowflake sudoku

Types of Sudoku puzzles

Jigsaw Sudoku - Easy

Irregular Sudoku Puzzle (Fun With Sudoku #279)

Types of Sudoku puzzles, WPF

6 Different Types of Sudoku Puzzles You Should Try - HobbyLark

Glossary of Sudoku - Wikipedia