The 3-3-3 Stack
Cups are "up stacked" and "down stacked" from left to right or right to left (individual preference) in three stacks made up of three cups in each stack (3-3-3).
Cups are "up stacked" and "down stacked" from left to right or right to left (individual preference) in three stacks made up of three cups in each stack (3-3-3).