> Doesn't it play the basically perfect move at each step? "the basically perfect move" has a lot of implications here. Because chess isn't a solved game a se

> Doesn't it play the basically perfect move at each step? "the basically perfect move" has a lot of implications here. Because chess isn't a solved game a seemingly "perfect move" in a game involving two 2000 ELO rated players might not seem perfect to a 3000 ELO rated player. (To be clear: the only actual perfect moves are ones that all trees lead to a checkmate, but in general use "perfect move" means roughly the best possible move to play) In this case Stockfish was set to a lower setting which corresponds to 1320 ELO.