Commentary for white move 12:

MURRAY CAMPBELL: However, Deep Blue had many winning blues. Instead of going Kf1 it could go Kh1, there are many alternatives, so when it played Kf1, it overlooked that Qe3 could draw.

YASSER SEIRAWAN: You say that so simply. "Overlooked."

MURRAY CAMPBELL: Garry overlooked it also. GK MOVE: 12 Nh3

MAURICE ASHLEY: Kasparov has moved knight back to h3, not immediately playing the strategy of the g4. Does it bother you that the computer overlooked this possibility?

MURRAY CAMPBELL: No. We prefer that it could find every best move in every chess position but of course that's impossible. Chess is far too complex for that, so we just hope to play the best possible chess. We're going to make errors and we hope that they don't cost us. And fortunately this time the error didn't cost us. (Audience laughter.)

YASSER SEIRAWAN: There's no doubt in my mind, Murray, that game two was a superb -- not to be hyper boll I can, it was simply the best game I've ever seen a computer play, and the victory was well deserved, and as you say, there were winning moves, and this Kf1 allows this incredibly freakish, drawn variation. And from my side as a professional chess Grandmaster, it's beyond my scope of understanding that a reigning world champion could resign a drawn position and I definitely, definitely didn't want to believe it, and I suppose when you found out, you were shocked yourself?

MAURICE ASHLEY: When did you find out?

MURRAY CAMPBELL: I found out the next morning, and I didn't believe it, either.

MAURICE ASHLEY: Was this after much celebrating the night before, cocktails --

MURRAY CAMPBELL: Of course, of course. (Audience laughter.) And so we -- I started to -- I looked up for a little bit and started to believe that perhaps there's something to it. Once I saw the move Re8. And we put it on Deep Blue, and in fact after a few minutes it said, "Yes, it's a draw in all variations." It tried the h4 line. This was its best attempt, but in the end that didn't work, either.

MAURICE ASHLEY: Who told you, by the way? When did you find out?

MURRAY CAMPBELL: One of the team members, F. H. Hsu had seen it on the Internet.

MAURICE ASHLEY: On the Internet.

YASSER SEIRAWAN: Does Oliver Stone get rights to the conspiracy? The next rumor we heard is Deep Blue is claiming it may have been able to draw game one.

MURRAY CAMPBELL: Oh, well, yes, there's a possibility. We haven't analyzed it because there's not a great payoff in analyzing these things, games that are done, but we had heard from a reporter from Europe that some Grandmasters had said that instead of Kf8 in that first game it could have played Ng4, and with very good drawing chances. We just looked at a few variations and it looked reasonable to us, but we haven't explored it fully.

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