Ply (game theory) consists of one proposed move by the machine and one anticipated reply by the opponent"). In computing, the concept of ply is important because one ply corresponds to one level of the game tree. The Deep Blue chess computer which defeated Kasparov in 1997 would typically search to a depth of between six and sixteen plies to a maximum of forty plies in some situations. Ply (game theory) In two-player sequential games, a ply is one turn taken by one of the players. The word is used to clarify what is meant when one might otherwise say "turn". The word
Deep Blue (2003 film) "The New York Times" called "Deep Blue", a re-cut of "The Blue Planet", "a more visual and less informative re-assemblage of the mounds of footage shot for the show, is alternately mind-blowing and mind-numbing". Kern commended footage of deep-sea creatures as "so exotic they would be the envy of any science-fiction film". The critic concluded, "The experience of 'Deep Blue' is hardly enlightening. In the end, a sliver of knowledge may be gained, or environmental concerns only briefly alluded to might be pondered, but mostly what remains are pretty pictures that quickly fade into oblivion." Deep Blue (2003 film) Deep