It’s fun. It feeds. It’s a challenge your dog needs! Nina Ottosson Treat Puzzle Games fight boredom, help reduce destructive behaviours & exercise your dog’s mind. It’s hide & seek with treats, and dogs love it. Nina Ottosson treat puzzle games are a great way to engage your dog’s mind with challenging and rewarding activity. The challenge slider will keep your dog busy with 24 treat compartments. Dogs have to slide each tile one at a time, keeping them engaged longer.