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About Killer Sudoku - free number puzzle, sudoku puzzle

Killer sudoku (also named sumdoku, addoku, cross-sum or samunamupure) is a logical puzzle game that combines elements of sudoku and kakuro. So its rules are like the classic sudoku very much. Your goal is to fill the grid with numbers like in classic sudoku and also make sure the sum of numbers in cages (areas separated by dotted lines) is equal to the number in the upper left corner of that cage.

If you are interested in playing number games or math puzzle games, this Killer Sudoku is exactly for you! Killer Sudoku may be a little bit harder than a classic sudoku puzzle game. But we offer 9 balanced difficulty levels for beginners and advanced players. Even you didn't play Killer Sudoku before, you'll become a Killer Sudoku master in no time.

How to play it?
The objective is to fill the grid with numbers from 1 to 9 in a way that the following conditions are met.
1. Each row, column and block contain each number exactly once.
2. The sum of all numbers in a cage must match the small number printed in its corner.
3. No number appears more than once in a cage.

Main Features:
1. Include more than 80,000 puzzles, and all are tested by program.
2. Contain several game modes: Daily Challenge, Game Levels, Trophies Collection.
3. The game offers 9 difficulty levels that are suitable for both beginners and masters.
4. Use free hints when you are stuck.
5. Use auto-check to see the mistakes in real-time.
6. Take part in the ranking, and compete with other players.
7. Long press and lock a number, use for multiple cells, you can enable it in settings.

More Features:
- Color themes, select your favorite color.
- Unlimited Undo.
- Auto-save game and continue it next time.
- Auto-notes for all the cells.
- Statistics, record all your progress.
- Timer, you can disable it in settings.
- Support phone and tablets.

Thanks for your selecting our Killer Sudoku game, please install it free, train your brain, and enjoy your happy time!