10: free puzzle app game for iphone, ipad

10 comes from http://www.iojoe.com/10/  The object is to slide the tiles to add up to 10. Pretty simple right?  When a block becomes 10 - it stays put.

Blocks slide until they hit a wall, or a 10 block or crash into another number and merge.

A 5 cannot crash into an 8. But if a 5 crashes into a 4, it becomes a 9.

This is problematic when you've got a 1 that must merge with a 9 in another sector.

I was not expecting much from 10. However, I am much impressed.

10 from iojoe is challenging and fun. There are some 140 puzzle levels. Right now I've done about 100 of them.  It's a winner. And it's free too! At least for now. So hurry up and download it.  The graphics are good too.