Recommended age: +8 years. Number of players: 2-4. Box size: 27x27x5,7cm. Psychopedagogical aspects: Reasoning, Spatial vision, Manual ability, Stream. This is a variant of the classic dominoes game. As the dominoes are triangular, you have 3 game options, but remember that in many cases 2 or 3 sides with the same numbering must coincide.