Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To download the free app Riddle Stones - Cross Numbers by OOBLADA, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

Riddle Stones - Cross Numbers


Open iTunes to buy and download apps.


Love logic deduction games and number puzzles like sudoku and minesweeper?

Riddle Stones is a game of logic that will train your brain: like crosswords but with squares and numbers. The game is based on the asian riddles known as picross, griddler and nonogram. It’s a real mind challenge wrapped in a fun experience where you need to think and use your brains to succeed.

To decipher our puzzle grids, you will use numbers indicating which squares to activate in each grid based on simple rules. Each number tells you where to add squares in a row or a column. You can compare it to sudoku or crosswords with more fun brain training. You will learn easily, progress rapidly and quickly get addicted! It will blow you mind!

Riddle Stones offers a fascinating cross-over between crosswords, sudoku, minesweeper and other puzzles based on numbers where you cross the hints to find which squares to activate. But be careful and think right, if you tap the wrong square, you will trigger a trap!

Fans of picross, nonogram, griddler, paint by numbers rejoice and enjoy Riddle Stones...
Solve grid cross-puzzles by logic & deduction! PLAY NOW!

Also available on Facebook.

Riddle Stones is completely free to play, but some in-game items such as extra lives require payment.

What's New in Version 4.2.6

For those of you who see video ads in the game, the ad system had a tendency to go a little crazy sometimes: sorry about that, it is now fixed. And to enable everyone to enjoy Riddle Stones without ads, we have reduced the price of ads removal to the absolute minimum supported by the AppStore.

We hope you like this update!


iPhone Screenshot 1
iPhone Screenshot 2
iPhone Screenshot 3
iPhone Screenshot 4
iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5

Customer Reviews

Love the game......BUT...

Love the game, but it has been freezing repeatedly for the last few days. I had to close it down to restart the level (losing all my progress on the level when I was on the last grid!). I just uninstalled & immediately re-installed it...& now it busted me back to Level 1 from my hard-earned climb to 225!!! Can I PLEASE have my progress restored??

New update WAY to many ads

Great game BEFORE the update. Now enjoy an ad AFTER EACH level. Fix this and more stars until then won't be playing. Spend more time watching dumb ads than playing the actual game!


Time for a free lives refill restarts every time I close the app. It's been 3 days since I've had a free lives refill. I don't link games to my Facebook to ask for "help" and I'm sorry, but I'm not going to stare at my screen for 45 minutes with the game up waiting for the refill.

Riddle Stones - Cross Numbers
View in iTunes
This app is designed for both iPhone and iPad
  • Free
  • Category: Games
  • Updated:
  • Version: 4.2.6
  • Size: 116 MB
  • Languages: English, Dutch, French, German, Italian, Portuguese, Spanish
  • Seller:

Compatibility: Requires iOS 5.1.1 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version:
All Versions:

Top In-App Purchases

  1. 10 Gems$0.99
  2. 100 Gems$8.99
  3. 10 Gems$0.99
  4. 50 Gems$4.99
  5. 50 Gems$4.99
  6. 100 Gems$8.99
  7. Special offer$0.99
  8. Special Offer$0.99
  9. Starter Pack$2.99
  10. Special offer 54$3.99