Killer Sudoku - Sudoku Puzzles APK for Android

A free program for Android, by Beetles Studio.

Killer Sudoku is a game that combines the logic and puzzle solving skills of Sudoku with the intuitive control of kenken and kakuro. Like the classic sudoku, it has a 3×3 grid of numbers. Each cell in the grid is filled with numbers from 1 to 9, each number can only appear once in a row, column, or the whole grid. Like kenken and kakuro, you have to find the correct number using a combination of logic, intuition, and strategy.

The numbers in each row, column, and cell can be completed with a single number, and any number combination within a row, column, or cell will give you the same score. Like sudoku, the solution is determined by the numbers that appear in the grid. 

If you prefer a casual game, select one of the four difficulty levels and challenge yourself to see how many you can get. And if you want to try your hand at the harder levels, there are a couple more difficulty settings.