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.
Make a knight tour a chessboard without revisiting an already visited square. You will be able to find solutions if you follow the hints. The app uses Warnsdorff's heuristics to find the solution. In the solution mode, click on a square to find one solution for that square. Other solutions are possible if you choose a different route.