Commentary for black move 5:

Mr. VALVO: It varies obviously but there are lots of positions with good moves. One of the things computers use to figure out what to look at, they have a thing called the alpha-beta search and they have a thing that says well, gee unless a move is better than a particular move, I'm not going to -- not even going to look at others in this area. That saves them about 50 percent of the moves that they look at. So they do have some ability in that area but not always.

Mr. ASHLEY: What did you use successfully in the Aegon tournament, playing against computers?

Mr. SEIRAWAN: Let's see, pulling out the power cord helped a lot. (Laughter.) Why are you laughing? It worked. Bribing the operator, you know, simple things, simple things, really. And really closing the position down. Again, what Michael was saying is that the computer, when the computer is faced with an opportunity of making a capture, well, that's where it's going to focus all of its attention and all of those hundreds of millions of moves a second suddenly become very, very useful to have. So, by creating as large an opportunity of moves as possible, then the computer starts looking at a lot of things that aren't significant. We have another move.

Mr. ASHLEY: Kasparov has castled, --

Mr. VALVO: Bringing his --

Mr. SEIRAWAN: Bringing his king. This is known as building a house. What Garry has done afianchettod his bishop, that is to say putting his bishop on g2 directly in front of his king, his knight on f3, a very nice little pawn shield, so that white's king is nice and comfortably ensconced in his own little home so that he will later turn his attention to the center. And I just wanted to kind of set up ourselves here with a bit of our props. What we have behind us in the middle screen is of course the two-dimensional resentation of the chess game.

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