Killer Sudoku

Explore beautifully crafted math puzzles and logic games.

Killer Sudoku by Logic Wiz is an engaging puzzle and math game - a free, entertaining logic challenge and brain training app that joins Logic Wiz's collection of Sudoku and logic games.

These beautifully designed puzzles are organized into six difficulty levels, from Beginner to Master.

The app features an excellent interface and tools for both beginners and experienced players, including: hidden (virtual) cage creator, combination panel, killer calculator, and double notation.

Smart hints reveal the next logical step to overcome challenges and help improve your skills.

The Logic Wiz Sudoku free app has earned recognition as both Best Sudoku App and Best Brain Training App.

About Killer Sudoku:

The game board contains dotted-line polygons called "cages," typically with a number displayed in the top-left corner.

Rules:

1. The number in the top-left corner of each cage represents the sum of all digits within that cage.

2. Digits cannot repeat within any cage.

3. For cages without a sum, only rule 2 applies.

Puzzle Features:

* Beautifully handcrafted game boards.

* Each puzzle has a unique solution.

* All boards are exclusively designed and created by Logic-Wiz.

Game Features:

* Smart hints for guidance and learning.

* Weekly challenges.

* Gallery game view.

* Play multiple games simultaneously.

* Killer calculator tool.

* Combination panel for Killer cages.

* Hidden (virtual) cage creator.

* Cloud Sync - synchronize progress across multiple devices.

* Keep screen awake option.

* Light and dark themes.

* Sticky digit mode.

* Track remaining cells for each digit.

* Select multiple cells at once.

* Select distributed cells across the board.

* Multiple pencil mark styles.

* Double notation system.

* Auto-remove pencil marks.

* Highlight matching digits and pencil marks.

* Multiple error checking modes.

* Performance tracking for each puzzle.

* Statistics and achievements.

* Unlimited undo/redo actions.

* Various cell marking options - highlights and symbols.

* Track and improve solving times.

* Board preview feature.

* Reset level option.

* Compatible with mobile phones and tablets.