Solve lots of puzzles and push your patience to the limit. If you get lost, Astar will help you out. Choose a picture, or don't, and see how far you can go without a helping hand.

- What is Astar? Astar (A*) is a graph traversal and path search algorithm, which is used in many fields of computer science due to its completeness, optimality, and optimal efficiency.

- What does it do? It analyzes the current state of the puzzle and figures out the best next move.

- How does it work? It tries all the possible moves and picks the one that brings you closer to the solution.