Roll It! (Unhacked Version)

Game Information
The objective is to change the coloured squares in the 6 x 6 board.
Roll 4 or more marbles of the same colour next to each other to remove them. The squares under the disappearing marbles will change colour. A board is solved when all its squares become grey, then you can move on to the next board.

The game also available on iPhone: http://itunes.apple.com/us/app/pulis-roll-it!/id490436368?mt=8