In this version, the grids start small and gradually get larger. At the same time, more colors are added for greater difficulty.
I solved 32 levels in about half an hour. It's fun, but there are ads - fortunately they last 10 seconds.
This blog focuses on GREAT, FUN PUZZLE APPS for the ipad, iphone and ipod. If you are creating your own puzzle app and want it reviewed, contact me at LinkedIn. Tom Cutrofello