Puzzle Links
A curated collection of Sudoku and puzzle resources from around the web.
Sudoku Resources
- Sudoku — Wikipedia The complete history and mathematics behind Sudoku puzzles.
- Sudoku Wiki — Solving Techniques Comprehensive guide to Sudoku solving strategies from basic to advanced.
- Conceptis Puzzles A leading publisher of logic puzzles including Sudoku, Kakuro, and more.
Other Puzzle Sites
- Puzzle-Sudoku.com Another great source for free online Sudoku puzzles.
- Simon Tatham's Portable Puzzle Collection A legendary collection of single-player logic puzzles, free and open source.
- Nikoli The Japanese puzzle company that popularized Sudoku worldwide.