Amir pointed me via an email to another Facebook Puzzle application called Numbrosia, a number/slider puzzle hybrid.
Update: Numbroisa in not available anymore on Facebook but only for iPhone and iPod via the iTune store.
Object of Numbrosia is to turn all the numbers in the grid into zeros in as less as possible number of moves. You will be rewarded for using fewer moves than other players. By the different possibilities you have you can change the numbers on the grid: - add one to or subtract one from a row - add one to or subtract one from [Read More...]