"Knight to H3!" With this puzzle, your dog will become a chess wizard! By having to move the right pieces, to drop their hidden treats into the pockets they'll need to life open. It also contains a few other compartments for some extra snuffling.

Just like with most 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.