Commentary for white move 19:

MIKE VALVO: One thing I wanted to find out was, was Bf4 actually calculated or not, but I couldn't find that answer out. Although Jonathan Schaffer, who we talked to yesterday, who was the programmer of the world champion computer chess program -- computer checker program said that he believes that it was calculated. I talked to Patrick Wolff, who has played the white side of this line and I said do you think Garry did this on purpose? He said, "Absolutely. Garry did this on purpose. And it was very brave for him to do."

MAURICE ASHLEY: And he should get an Oscar?

MIKE VALVO: --

DB MOVE: 19 c4

GK MOVE: Kasparov resigns.

MAURICE ASHLEY: Whoa! Kasparov after the move c4, has resigned! It's over just like that! We should say that Deep Blue has upon the match. IBM computer Deep Blue has defeated the world champion Garry Kasparov in an absolutely stunning, stunning 19 mover! And Kasparov has just simply stormed away. We should say congratulations to Deep Blue and their programmers. (Audience applause.) Yaz, Fritz four now is going nuts, saying that Kasparov in fact has a huge disadvantage. In fact, white has a winning advantage after c4, and we will attempt to analyze this position. I know you guys didn't come here and expect to be out this quick, but we will try to get as much as possible done. There will be ceremonies taking place on stage. We hope that Kasparov will come to the stage. It will be a difficult thing for him to do after such a loss. But there are indeed a lot of questions. We're not prepared for this. I thought I was going to get a break for a second, an hour into the game, and it's over. Yaz, what are your impressions? This is stunning. We never expected this to happen, never, never at all.

YASSER SEIRAWAN: With all due respect, the final position, let's just try to understand what Garry saw. What Garry saw was that after this move c4, remember what we were talking about, that overloaded bishop, how it would suddenly become vulnerable. If Bxb4 -- Bxc4 Qxc4, queen mate. The whole strategy had been to keep his knight on d5 with b7-b5. So c2-c4 disrupts his defensive formation. I think his resignation looks still premature. There are several moves in this position. There's Nd5-b4 -- well, let's just see the most -- Nd5-b4. What does Fritz see that it thinks is the best? Fritz likes to take the pawn on f5, and he gives himself a valuation of a pawn and a half -- a pawn and a quarter. It's growing, it's growing.

MAURICE ASHLEY: Well, after this -- if bxc4 is not possible, Yaz. One has to admit that black's position is going to be in trouble very quick. Because these two pawns are not funny. Having these two passed pawns coming down the board, you can't like what's about to happen.

YASSER SEIRAWAN: Well, let's take a look. Okay, you're going to play Qxf5. And I agree, I don't want to see those pawns any more than you do, so let me take one. bxc4.

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