Un exemple de killer sudoku. Original images by Toon Spin (Toon81) (Own

How To Play Killer Sudoku

Killer Sudoku by Sudoku.com - Apps on Google Play

Killer Sudoku - Play it Online at Coolmath Games

Duncan's Killer SuDoku Solver

Killer Sudoku Pro 2: 200 Puzzles

Killer Sudoku - Sudopedia

New take on the classic: Killer Sudoku by Easybrain

1,000 + Premium sudoku killer 9x9: Logic puzzles hard - extreme levels (Paperback)

1,000 + Mega sudoku killer 8x8: Logic puzzles hard - extreme levels (Paperback)

Killer Sudoku Puzzle Book for Adults: 200 Hard to Very Hard Puzzles 9x9 (Volume2) (Paperback)