Each pyramid has dots, from 1 to 4, on each of its four sides and it's also dotted at the base.
Using gravity convert all pyramids with 4 different dots to all pyramids showing the same number of dots or showing a sequence of dots. Do this for both inside & outside of pyramids. Sequences of 1 to 4 can be done. Then try your own challenges like choosing a number and making the dots add up to that number. The puzzles are endless.
Invented by Dr Pantazis Houlis (BSc & MSc in Mathematics, and PhD in Control Engineering) this puzzle belongs to a group of puzzles called Gravity Puzzles. Gravity - because you're not able to touch the pieces so you rely on gravity when you rotate the sphere to move the pieces.
Not an easy puzzle but an easy puzzle to play with. Doing the puzzle is very intuitive; you can pick it up for the first time and start playing right away.Size: Diameter of sphere is 75mm