Ultimate tic-tac-toe simple rules, ultimate tic-tac-toe lacks any simple heuristic evaluation function. This function is necessary in minimax, for it determines how good a specific position is. Although elementary evaluation functions can be made for ultimate tic-tac-toe by taking into account the number of local victories, these largely overlook positional advantage that is much harder to quantify. Without any efficient evaluation function, most typical computer implementations are weak, and therefore there are few computer opponents that can consistently outplay humans. However, artificial intelligence algorithms that don't need evaluation functions, like the Monte Carlo tree-search algorithm, have no problem in playing this game.
Names for the human species "Homo", e.g. "Homo paniscus", "Homo sylvestris", or "Homo arboreus". An alternative philosophy suggests that the term "Homo sapiens" is the misnomer and that humans should be reclassified as "Pan sapiens". In either case, a name change of the genus would have implications on the taxonomy of extinct species closely related to humans, including "Australopithecus". A taxonomic name given to the species of the last common ancestors of humans and chimpanzees is "Pan prior". The following names mimick binomial nomenclature, mostly consisting of "Homo" followed by a Latin adjective characterizing human nature. Most of them were coined since the mid 20th