Killer Sudoku - Play it Online at Coolmath Games

Killer Sudoku is the classic game with a mathematical twist. As you fill in the numbers, make sure they add up to the number in the corners of the squares.

Killer Sudoku - Sudoku Puzzle - Apps on Google Play

Brain Teaser Puzzles - Logic & Brain Games::Appstore for Android

Sudoku Strategy - Read Our Sudoku Tips and Tricks Here

Interactive Killer Sudoku by KrazyDad

Sudoku - Play Online at Coolmath Games

Brain Teaser Puzzles - Logic & Brain Games::Appstore for Android

Sudoku - Classic games for Android - Download

File:Killersudoku color solution.svg - Wikimedia Commons

Killer Sudoku Puzzles by Krazydad

Addition / Subtraction Games at

A 14x14 3☆ Star Battle by mudopnw: a step-by-step pictorial guide to solution : r/puzzles