This food puzzle is quite unique, as it takes your dog past only nudging and moving pieces. It will teach your dog to lift the multiple hatches it has, to uncover the hidden treats inside after the main compartments have been moved aside accordingly.

Just like with other puzzles, the fewer food/treat pieces you have your dog work for at a time, the better. That way their success is based on their skill set, rather than a high probability of multiple pieces being everywhere.