This is a math combination puzzle. To the blue puzzle body twelve yellow pins and twelve white triangles are attached. The pins show the numbers from 1 to 12 and the triangles have 0 to 3 black dots on each of their corners. In the solved state the dots of the five triangles around a yellow pin sum up to the number shown.
Remove all triangles and pins, then attach the pins again in abitrary positions. Now add the triangles for a complete solution. The puzzle can always be solved.
Inventor: Andrea Mainini
Size: 11cm diameter between trnagle faces, about 12cm from pin to pin.
External LinksRecent Toys: IcoSuKuhttp://www.recenttoys.com/index.php?id=53