The first time you place treats in all the hollows. Let the dog be present and watch. Place the blocks so that some treats can be seen between some blocks. Tell the dog to "go ahead" and allow the dog to try and find the treats by itself. If the dog does not understand, point with your finger to a treat in a hollow. Praise the dog immediately when it does things right.
When the dog has understood what to do you can hide a different number of treats each round, and it depends on the dog how many rounds you manage to do in a certain time.
If the dog tries to bite the game or the pieces, then put your hand over it and stop the game. When the dog has calmed down you can tell it to go ahead and let the dog try again. If the dog repeatedly wants to bite, then teach it to work only with its paws. If the dog rather wants to throw itself on the game and beat excessively with its paw, then teach it to work with its nose by putting the game on a stool/chair which is adapted to the size of the dog. This is also useful if the dog has an injured paw or if it has just had an operation.

The games and toys have different degrees of difficulty, graded 1, 2 and 3. Some are a little easier and are great to begin with. Some games are a bit more difficult, and some are more advanced and are excellent to use for dogs that need extra mental stimulation.
Level 1
For beginners, puppies, older dogs and dogs that are difficult to motivate.
Level 2
Medium, fits most dogs.
Level 3
Advanced, for "smart" dogs and dogs that need extra mental stimulation.
Concept: The idea is for you and your pet to have a pleasant and rewarding time together. Enhances your relationship with your pet. You show. The pet looks, listens and learns. Praise it when it does things right. Together you will have fun!