Commentary for white move 20:

GK MOVE: 20 Qc2

YASSER SEIRAWAN: And we have another move, a move by Deep Blue of Rh8-e8. Garry has quickly responded Qe2-c2, gotten up from the board with a look of confidence. Again, so if Deep Blue was to face the world over the Internet, it would be weaker?

MATT THOENNES: Well, it depends how you -- you can think of Deep Blue as having a resource of hardware, and, you know, one of the things that you could think of doing was that we could split the machine into 16 nodes and 16 nodes and have the two play each other. Of course that's going to be weaker than having 32 nodes play together. So there's a certain partitioning of power, partitioning of the resources that would make it be able to evaluate less positions per second as you take away the hardware resource or divide up the hardware resource amongst many different players playing simultaneously.

MIKE VALVO: We have a very patient young lady here. Why don't we give her a chance to ask her question.

YASSER SEIRAWAN: What's your name?

AUDIENCE MEMBER: I have duo questions.

MIKE VALVO: First your name. What's your name?

AUDIENCE MEMBER: Ann. I have two /KWREZ. The -- questions. The first one s how long did it take to make the Deep Blue. And the second one is, what is all that stuff on that screen? What is all that stuff below, all those numbers.

YASSER SEIRAWAN: Okay, I'll answer the numbers question. That is the moves. That is the algebraic notation. And the moves 0-0-0 refers to castles. When white castles long, there's three zeros. When white castles short, there are two zeros.

MIKE VALVO: What's the 19?

YASSER SEIRAWAN: That's the 19th move. The 19th move by Garry Kasparov. So the reason that we put that up there is that if Garry -- we'll be keeping an eye on Garry's clock. Now you see Rhe8 and Qc2, so Garry has now made 20 moves, half the time control. The second question --

MIKE VALVO: Let's finish up on that. If you look at the bottom of the board here, you'll you see a through h and 1 through 8 and just visualized if you play Rhe8, the rook on h8 moves to e8. That describes the move. Okay, now the other question?

YASSER SEIRAWAN: How old is Deep Blue?

MATT THOENNES: Well, let's see. The research started at Carnegie-Mellon with F. H. Hsu and Deep Thought. I'm not sure when the incarnation actually went from Deep Thought into the newer hardware which we call Deep Blue. I think it was somewhere --

YASSER SEIRAWAN: '87?

MATT THOENNES: No, actually later than that, I think '93, '92. I'm not exactly sure of the date of when, you know, we really left being, you know, Deep Thought, Deep Blue's prototype, into real Deep Blue.

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