This is the tree-mining game. Your goal is to have a score as large as possible when one of the leaves of the tree touches the other end of the screen. When you click on a node that is populated by k robots, that node gets receives k-1 children with one robot each. The extra robot is sent somewhere chosen by the algorithm. Every the algorithm has to move a robot along an edge, your score gets increased by one. Beat the algorithm! You get to pick the initial number of robots.