- Killer Sudoku Play Killer Sudoku on PrimaryGames
- Duncan's Killer SuDoku
- How Play Killer Sudoku - KillerSudoku.com
- Killer Sudoku online « Hearle Blog
- Killer Online Help
- Killer Sudoku - puzzle game
- Killer Puzzles by Krazydad
- Killer Sudoku
- Killer Sudoku Play Killer Sudoku
- Killer Sudoku Archives - The Art of Puzzles | The Art of
- sudoku
- Anti-Knight Killer Sudoku - XL cages Rätselportal — Logic Masters Deutschland
- Sudoku - Solve daily sudoku puzzles
- puzzlemix.com: Killer Sudoku instructions and free puzzles to play online
- Sudoku (Fun With Sudoku
- Killer Sudoku Daily 1271 Tips and
- Killer Sudoku by - Apps Play
- Sudokasana Killer Sudoku Puzzles
- Killer Sudoku
- The Basics of Killer - by James Sinclair
- Killer Sudoku Online (Logical Thinking
- Welcome to Killer Online
- Killer Sudoku puzzlephil
- Sudoku
- Non-Consecutive and Sudoku hybrid
- Sudoku - 9x9, 6x6 Samurai
- Killer Sudoku: de Sudoku
- Sudoku #4 — Rätselportal — Logic Masters Deutschland