One player, the Disciple, must find out which pyramids the other has hidden in his pocket, while the other, the Master, tries to prevent the first from guessing. On their turn, the disciple asks for a certain color or size. If available, the Master gives them a matching pyramid which they must drop in an Icehouse tube. On the Master turn, they will give the Disciple any pyramid to drop into the tube. The game ends either when the Disciple guesses which three pyramids the master has hidden or when the stack of pyramids reaches over the edge of the tube.

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