The objective of this experiment is to demonstrate that the sequence of operations involved in performing mergesort is not unique. It is possible to arbitrarity select the sequence of operations.
This experiment is similar to the recursive mergesort experiment. You are presented with the same graph consisting of data and operation nodes. The difference here is that when you click on a split node, you are not provided with the nodes that lead to the corresponding merge. You are free to select any two sorted nodes and merge them together to form anther sorted node.