The download button opens the iTunes App Store, where you
may continue the download process. You must have iTunes installed with an
active iTunes account in order to download and install the software. This
download may not be available in some countries.
***** Solve cool puzzles at the Chalkboard ***** - Solve 20 free puzzles in two levels - Use in app purchase to get more - But be careful - your brain may overheat ***** Create your own puzzle ***** - Send it to one or more of your friends - Who will solve it first?