A toy for stimulating the intelligence of dogs has a basic body into which food rewards can be introduced. Movable panels define different functional levels. The panels have apertures and are arranged one above the other in the body. Two top sub-panels that close of the upper side of the body can be pushed apart from one another by the dog's paw. An access panel underneath has retaining bracket which allows the dog's paw to lift it out in the upward direction. Retaining pins pass through apertures in the panel. A sliding panel, which is underneath, has an oblong opening through which likewise removable arresting pins and special arresting pins can pass. The sliding panel can only be displaced by the dog and drawn out of the body in order for the food reward to be exposed to the dog after the locking and arresting pins have been removed.