Balancing a multi-level suspended mobile becomes the main challenge in the calm physics puzzle game Counterpoise. Hang the weighted pieces from the tray on the hooks without any time limits and watch the bars swing smoothly, equalizing the product of weight and distance on both sides of the support. Consider the total mass of all parts suspended below, start picking up weights from the lower tiers for the sake of stability of the upper ones, and bring each crossbar to full balance in Counterpoise.
