Knight's Tour

The Knight's Tour is a puzzle that mathematicians have studied for well over a thousand years. A chess knight stands in the corner of a five-by-five board. It moves as it does in chess: two squares in one direction and one square to the side. Your task is to visit all twenty-five squares without landing on any square twice.

The squares you can reach are marked with green dots and the squares you have used are numbered in order. It is easy to strand the knight with unvisited squares out of reach, so think about the corners and edges, which have the fewest ways in and out. If you get stuck, tap the knight to take back one move at a time. A complete tour from the starting corner does exist.

Visit every square once using knight moves. The game is won when all 25 squares have been visited.