Drag a piece from the tray onto any face you can see, and drag the background to turn the pyramid. Pieces never rotate, so each one only fits cells pointing the same way it does.

Bars and pyramids

A bar is an unbroken line all the way across a face — level, or parallel to either sloping edge. A pyramid is a larger triangle built from smaller ones. Fill one and it clears.

Every stone you place scores 5. A big shape pays far more than the small ones inside it — one 7x Bar beats six 3x Bars — so it is worth holding out.

Combos

Complete more than one shape with a single piece and their scores are added, then multiplied: two at once is 2.5×, three is 5×, four is 8.5×, five is 13×. A combo always beats clearing the same shapes one at a time.

Running out

All three pieces in the tray must be placed before three more arrive. The game ends only when none of them fits anywhere on any face — turn the pyramid before giving up on a piece.