You won’t be looking for a paper puzzle ever again!

With 4 difficulty levels, intuitive interface, and all the functions right at your fingertips, this Sudoku app is sure to be your favorite. Interrupted? Exit Sudoku, and the puzzle is saved exactly as you see it!

* 4 levels - easy, medium, hard, extreme
* 3 input modes - digit first, cell first, popup
* Pencil marks with auto fill / erase, as specified in settings
* Auto-save
* Undo and Redo
* Intelligent hints
* Real time competitions
* Top scores and History
* Selected digit highlighting, as specified in settings
* Incorrect entry highlighting, as specified in settings
* Submit results and track progress online

Supports: trackball, touch screen, keyboard.

NOTE: The INTERNET permission is required for competitions and game results upload. The WAKE_LOCK and WRITE/READ_EXTERNAL_STORAGE are needed to prevent screen from sleeping and for move-to-SD functionality. All other permissions are required by the ad networks.

Sudoku is a logic-based, combinatorial number-placement puzzle game. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9.

we created this innovative sudoku free game with several various key features:
★Variations such as x-sudoku and color-sudoku
★Career statistics documentry informations about your gaming history
★Game center provides global leaderboard and achievement after sign in with Google or Amazon account, which you can share or compete with your friends or others
★Online puzzle offer you to update your puzzle from the server at any time, without re-installing the game
★Custom puzzle can let you create your own sudoku as composed by yourself, or from the papers
★More than 6000 puzzles are waiting for you

while you competing a puzzle, you will be able to
★Auto highlighted numbers for intelligent hint
★Use pencil marks
★Double-click the cell to erase numbers
★Use puzzle check function to check the errors
★Unlimited redo & undo

you can also found more useful functions like
★You can share to your friends via Google+, twitter and facebook
★Auto-save
★Timer, you can also disable it in settings
★Selected cell highlighting
★Incorrect digits mark, as you use puzzle check
★Give us feedback in the game, with your help we'll make it better

We hope you will enjoy the stunning designs of our sudoku game! All for FREE!
Please support us with 5 stars if you like it!

OpenSudoku is an open source sudoku game.
Features:
- Several input modes (finger-friendly, numpad in the bottom of screen etc.)
- Puzzles can be downloaded from web or entered by hand
- Game time and history
- Export to sdcard
- Themes

★ Top Developer (awarded 2013) ★
Sharing the same top quality gameplay, graphics and interface as the rest of our app library, Sudoku Free is an essential download for any Sudoku or brain training fan! You never need a paper puzzle again!

- 1500 Sudoku puzzles over 5 difficulty levels, covering easy through to medium, hard, extreme levels.

- Super smooth interface and graphics.

- Statistics tracking, including fastest times, average times and completion % for each level.

- Optional hints and board aids.

- Two sets of Sudoku board art and fonts.

- Two different modes for notes input to cater for all playing styles.

- Undo supported.

- Suitable for both Phones and Tablets.

Supported by unobtrusive Ads.

*Note: Requested permissions are a requirement of the in-game ads only. The Paid version has no ads, and therefore no permissions.*

Please feel free to contact us regarding any suggested improvements to Sudoku Free, using the support address below.

Sudoku is played with 9x9 grid, divided into 3x3 subgrids called "regions".

The object is to fill empty cells with numbers between 1 and 9, so that number should appear only once on each row, column and region.

Many settings:
- for Tablets and Phones
- autosave
- statistics
- unlimited Undos
- mode Easy, Normal, Difficult, Nightmare

The most popular Sudoku game in Google Play has been polished to perfection.

Free Sudoku is an extension of the great Andoku, offering the same cool features and game variations:
• Standard Sudoku
• X-Sudoku
• Hyper-Sudoku
• Percent-Sudoku
• Color-Sudoku
• Squiggly Sudoku

The Free Sudoku extension includes 15000 new puzzles, App to SD, and a new Sudoku Strategy Tutorial, which will help you learn how to solve from the easiest puzzles for beginners to the Fiendish puzzles for advanced users.

Finally, the Interface has also been enhanced, solving a popular demand... now you can enter pencil marks with just one digit. Something many advanced users requested in previous versions of this awesome game.

This game is completely free, and will eventually be supported by unobtrusive adds.

Hope you like it, please rate us if you do!

Free Sudoku game for android. Very addictive puzzle game.

- Sudoku solver function - quick solves any sudoku puzzle
- Totally free & fun sudoku game
- Comfortable and easy in use
Just select difficulty level and play sudoku
- Two input modes
* Cell first - more natural, choose cell and enter a number into sudoku diagram
* Number first - much faster, select number and then fill cells
- 6 difficulty levels
You can be beginner or advanced - there's always something for you. The hardest level requires advanced solving techniques
- Undo and Redo
- Autosave
You can resume your game later, if you need a break
- Hints
Need little help with puzzle? No problem
- Statistics
You can check your times and improve them
- Themes
If you don't like default look, you can change it
- Works great on tablet

Become a Sudoku master!

Exercise your brain, enjoy Sudoku! With hints that teach and daily games at 16 levels you will love Sudoku. Supports phones and tablets. Our Sudoku tutorial, extensive feature set, and advanced multi-stage hint system offer something for everyone. The more you play, the more you will enjoy Sudoku!

For unlimited puzzles, check out our other Sudoku product: Enjoy Sudoku (paid).

Our multi-stage hint system starts with a gentle reminder to get you back on track and works up to an illustration of the exact technique to use and how it applies to the current board. Use our hints to ease those frustrating moments and to learn how to be a better player.

Features include:

* Daily puzzles at 16 difficulty levels
* Tutorial teaches you new techniques
* UI optimized for fewer touches
* Supports phones and tablets
* Multi-level undo and redo
* Automatic or manual pencil marks
* Supports keyboard and trackball
* Large easy to read digits
* Advanced techniques, including X-Wings,
sashimi fish, and coloring
* Choice of six color schemes
* Save your game while you try alternatives
* Highlighting helps you discover patterns
* Game clock; compares your time to others
* Avoids graphic frills that distract
* Choice of digit styles, including
Kanji and Hanzi

All games are true Sudoku, with symmetry and a single solution that can be discovered by logic alone. If you doubt that a Sudoku puzzle can be solved by logic, simply have the hint system explain it to you step by step.

If you enjoy Sudoku daily, this is the app for you!

[suduko,soduko,sudoko,sodoku,free]

Sudoku is one of the most popular puzzle games of all time. Sudoku is a logic-based, combinatorial number-placement puzzle. The objective is to fill a 9x9 grid with digits so that each column, each row, and each of the nine 3x3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9. The puzzle setter provides a partially completed grid, which for a well-posed puzzle has a unique solution.
Completed puzzles are always a type of Latin square with an additional constraint on the contents of individual regions. For example, the same single integer may not appear twice in the same 9x9 playing board row or column or in any of the nine 3x3 subregions of the 9x9 playing board.
The puzzle was popularized in 1986 by the Japanese puzzle company Nikoli, under the name Sudoku, meaning single number. It became an international hit in 2005.
If you play Sudoku, you will soon start to see improvements in your concentration and overall brain power.

With 3 difficulty levels, intuitive interface,
and all the functions right at your fingertips,
this Sudoku app is sure to be your favorite.

Features:

* 3 levels - easy, medium, hard
* Undo and Redo
* Pencil marks
* Download new puzzles for free!
* Auto-save - Interrupted? Exit Sudoku, and the puzzle
is saved exactly as you see it!
* ...and many many more!

Enjoy!

Try our new free games:

Funny Checkers HD
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Sudoku is a logic-based number-placement puzzle. The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid contains all of the digits from 1 to 9.

We created this innovative Sudoku with 3 various modes:
- Arcade in which you will be able to choose among 5 Sudoku difficulty levels and challenge yourself constantly to beat it
- Challenge in which you will have to unlock each level one at a time. Challenge is packed with over 1000 Levels
- Time Attack in which you will have to beat as many Sudoku as possible in a set amount of time

As you complete a Sudoku level, you will be able to:
- use notes or a pencil
- use hint to highlight inconsistencies
- use the rubber to erase notes
- share sudoku level with friends

We hope you will enjoy the stunning designs of Sudoku !

Andoku Sudoku 2 is an outstanding sudoku number puzzle game with an intuitive user interface for beginners and professionals alike.

It offers 6 sudoku variations, 8 levels of difficulty and comes with a total of 10,000 puzzles. All sudoku puzzles have a unique solution that can be discovered without guessing.

Game variations:

• Standard Sudoku
• X-Sudoku
• Hyper Sudoku
• Percent Sudoku
• Color Sudoku
• Squiggly Sudoku (Jigsaw)

Key features:

• Autosave
• Pencil marks
• Several input modes
• Unlimited undo and redo
• Portrait and landscape mode
• Supports phones and tablets

The game can be configured to offer as much or as little assistance as you like.

Assistance options include:

• Automatic error checking
• Automatic pencil mark removal
• Highlighting to reveal patterns

This version is supported by ads.

Sudoku. Pure and simple.
No complicated settings.
No ads. Ever.

Play with four difficulty levels and an expandable selection of puzzles.

There are a lot of sudoku games out there, but this one is different. This one has simplicity at the core. You won't find page after page of complex settings. This is the simple beauty of printed puzzles matched with electronic convenience. The classic brain puzzle game re-imagined with a clean, minimalist, holo design.

Try 40 free puzzles and unlock 4 puzzle packs with another 1600 puzzles for the price of a cup of coffee.

Now includes achievements, leaderboards and cloud save from Google Play Games.

This app requires networking and billing permissions. Here's why:
New puzzle packs can be downloaded from Google Play.
Anonymous crash reports are sent to help improve the app.

10'000 puzzles, eight difficulty levels, the world's best hint functionality and statistics. The only Sudoku app you'll ever need!

••••• Game Play •••••

★ Only upgraded or paid version: eight different Sudoku variants: Classic & Jigsaw puzzles (aka Squiggly), Asterisk-, Centerdot-, Color-, Hyper-, Percent- & X-Sudokus
★ Eight difficulty levels: very easy, easy, moderate, advanced, hard, very hard, fiendish, nightmare
★ Six input methods (digit first, cell first, mixed, Andoku cell first, Andoku digit first, popup)
★ Pencil marks with auto set or auto erase
★ Persistent undo/redo
★ Auto save
★ Bookmarks
★ Highlighting of selected digits and pencil marks
★ Highlighting of completed digits
★ Highlighting of incorrect digits
★ Coloring mode (cells and pencil marks) to support coloring solving techniques
★ Very advanced hint functionality
★ Analysis functionality to rate the difficulty of a Sudoku puzzle and to get a detailed list of required solving techniques
★ Game statistics: fastest, average, slowest times for each difficulty level
★ Extremely configurable

••••• Additional Features •••••

★ Sudoku Editor: create your own Sudoku puzzle from scratch
★ Sudoku Importer: import Sudoku puzzles in five different formats: *.sdk, *.sdm, *.adk, *.opensudoku, *.1gsudoku. The upgraded or paid version supports all *.adk formats including jigsaw/squiggly puzzles with extra regions.
★ Sudoku Generator: generate new Sudoku puzzles in eight difficulty levels
★ Sudoku Solver: solve any Sudoku in milliseconds
★ Sudoku Manager: create, delete, rename folders, create, copy, move, delete Sudokus, filter Sudokus according to their game status, difficulty and type

••••• Supports •••••

✔ Left-handed players (landscape)
✔ Portrait and landscape mode
✔ All screen types and sizes
✔ Touch screen, keyboard and trackball
✔ Installation on external storage (e.g. sdcard)
✔ Android 1.6-4.x

••••• Hint Functionality •••••

★ Full House
★ Hidden Single
★ Hidden Subset (Pair, Triple + Quad)
★ Naked Single
★ Naked Subset (Pair, Triple + Quad)
★ Locked Candidates (Pointing + Claiming)
★ X-Wing (Regular, Finned + Sashimi)
★ Swordfish (Regular, Finned + Sashimi)
★ Jellyfish (Regular, Finned + Sashimi)
★ XY-, XYZ-, WXYZ-, VWXYZ-, UVWXYZ-, TUVWXYZ-, STUVWXYZ-, RSTUVWXYZ-Wing
★ W-Wing
★ Almost Locked Candidates (Pair, Triple + Quad)
★ Avoidable Rectangle (type 1 + 2)
★ Hidden Unique Rectangle
★ Uniqueness Test (type 1, 2, 3, 4 + 5)
★ BUG+1, BUG+2, BUG+3 and BUG+4
★ Aligned Pair + Triple Exclusion
★ Sue de Coq
★ ALS-XZ, ALS-XY-Wing
★ Remote Pairs
★ Bidirectional Cycles
★ Forcing X-Chains
★ Forcing XY-Chains
★ Nishio Forcing Chains
★ Double Forcing Chains
★ Contradiction Forcing Chains
★ Region Forcing Chains
★ Cell Forcing Chains

If you like the game, don't forget to rate it!

The free version is ad supported

[suduko,soduko,sudoko,sodoku]

★ Top Developer (awarded 2013) ★
Same as our "Sudoku Free", but without ads.

- 1500 Sudoku puzzles over 5 difficulty levels.

- Super smooth interface and graphics.

- Statistics tracking, including fastest times, average times and completion % for each level.

- Optional hints and board aids.

- Two sets of Sudoku board art and fonts.

- Two different modes for notes input to cater for all playing styles.

- Suitable for both Phones and Tablets

Please feel free to contact us regarding any suggested improvements to Sudoku Free, using the support address below.

**Note that when upgrading from the Free version, the User/CPU player stats (only) are retained. To do this the game needs to read from your SD card when it starts for the first time, so please make sure the SD card is available and not connected to your PC**

Sudoku 2Go with 10'000 puzzles, 10 different variants, 5 levels of difficulty and a world-class hint engine. All the Sudoku you'll ever need!

In addition to the standard Sudoku puzzles it offers these Sudoku variants:

• X-Sudoku
• Hyper-Sudoku
• Percent-Sudoku
• Color-Sudoku
• Squiggly Sudoku (a.k.a. Jigsaw Sudoku)
• and combinations thereof (e.g. Sudoku-X with jigsaw regions)

Features:

• 10 different game variations
• 5 levels of difficulty per game variation
• 200 puzzles per game variation and difficulty level
• Puzzle timer
• Auto-save
• Statistics
• Cell highlighting
• Undo/redo

Permissions:

• Storage: this permission is used to store/retrieve the Sudoku puzzles in play
• Network Communication: this permission is used by ad networks to retrieve ads
• Billing: this permission is needed to offer the possibility for to remove ads using an in-app purchase

Hint Engine:

• Full House
• Hidden Single
• Hidden Subset (Pair, Triple + Quad)
• Naked Single
• Naked Subset (Pair, Triple + Quad)
• Locked Candidates (Pointing + Claiming)
• X-Wing (Regular, Finned + Sashimi)
• Swordfish (Regular, Finned + Sashimi)
• Jellyfish (Regular, Finned + Sashimi)
• XY-, XYZ-, WXYZ-, VWXYZ-, UVWXYZ-, TUVWXYZ-, STUVWXYZ-, RSTUVWXYZ-Wing
• W-Wing
• Almost Locked Candidates (Pair, Triple + Quad)
• Avoidable Rectangle (type 1 + 2)
• Hidden Unique Rectangle
• Uniqueness Test (type 1, 2, 3, 4 + 5)
• BUG+1, BUG+2, BUG+3 and BUG+4
• Aligned Pair + Triple Exclusion
• Sue de Coq
• ALS-XZ, ALS-XY-Wing
• Remote Pairs
• Bidirectional Cycles
• Forcing X-Chains
• Forcing XY-Chains
• Nishio Forcing Chains
• Double Forcing Chains
• Contradiction Forcing Chains
• Region Forcing Chains
• Cell Forcing Chains

Fun and addictive bubble shoot game!
Another classic bubble match-three game come to Google Play.
Clear all the bubbles on the screen to level up,and try to get 3 stars on each level.

How to play:
1.Tap where you want the bubble.
2.To group 3 or more bubbles to make them burst.
Tips: Breaking the bubbles continuously can get points as bonus.

Features:
- Puzzle Mode,use the limited bubbles to clear all the bubbles on the screen.
- Arcade Mode,clear all the descending bubbles.
- Having 300 different and challenging levels.
- Having sky castle,starry night, and other beautiful scenes.