Killer Sudoku help! I can't get the online answer for this but have been dying to solve it but keep going wrong. If anyone is happy to help please let me know! :
Killer Sudoku | Play Killer Sudoku on PrimaryGames
Killer Sudoku - puzzlephil
Killer Sudoku #4 — Rätselportal — Logic Masters Deutschland
Killer Sudoku Puzzles by Krazydad
puzzlemix.com: Killer Sudoku instructions and free Killer Sudoku puzzles to play online