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.
Variations on the name "Abegg" Variations on the name "Abegg" The Variations on the name "Abegg" in F major is a piece (theme with variations) for piano by Robert Schumann, composed between 1829 and 1830 and published as his Opus 1. The name is believed to refer to Schumann's fictitious friend, Meta Abegg, whose surname Schumann used through a musical cryptogram as the motivic basis for the piece. The name Meta is considered to be an anagram of the word "tema" ("Latin"). Another suggestion is Pauline von Abegg. Apparently, when he was twenty years old, Schumann met her and dedicated this work to her, as