The unique shape of this bamboo puzzle provides an increasing level of difficulty as you play. Your challenge is to maneuver the column sections of the temple until it''s returned to its original shape and has a singular color of wooden beads in each column. There are 4 columns and 4 rows with colored beads. You'll get the puzzle when each row has the same color of beads. The objective is to arrange the puzzle so each column will have the same color of beads. To create a space in which to move beads there is one hole at the bottom level of the tower. The Tower Building is made out of bamboo; considered as environment friendly material.