Commentary for black move 12:

MAURICE ASHLEY: It's a very significant decision and I'm sure there are certainly other things going on in his minds, things like will the computer know how to play this decision well.

GK MOVE: 12...hxg6

MAURICE ASHLEY: He has decide to do make the standard capture, hxg6, the rook is already developed, so to speak on the h-file. So a big decision, but Kasparov decides to make this quickly, Yaz.

YASSER SEIRAWAN: Like I say, mainly speaking it was automatic but there were some good reasons for consideration, and it seemed to me in just watching Garry weigh these two possibilities, it almost seemed like "Gosh, I'd like to have the opportunity to play them both, you know, I'd like to see what you would do if I captured it one way, and here I'll do the natural, normal thing."

MIKE VALVO: Let me ask you, Yaz, do you think Bxg6 was a mistake, or a good move?

YASSER SEIRAWAN: Thanks. You guys are really --

MAURICE ASHLEY: You were suggesting castles, so you preferred another move.

YASSER SEIRAWAN: Indeed. These double pawns, mostly in the computer's program, I mean structure is very important. It has their valuation, material has a valuation, active pieces have their values and so on. And doubled pawns get a lower valuation than a nice string of pawns. So the computer said, "Hey, look, I'm doubling my opponent's pawns. Aren't I cool? This is the right decision." The problem is, these doubled pawns don't hurt. They cover some very key squares, as Maurice just mentioned, you now have a rook on h8 that is performing active duty without ever having moved. This pawn on g6, black is no longer afraid of any strategic ideas down the road with f4-f5. And for his part, black may play things like g6-g5 and try in a very stupid manner to bring a knight to f4. Also, it's not so easy for white to take advantage of this structure. He may in the future play h4-h5, in order to open up the g-file after G /* gh gh.

MAURICE ASHLEY: Right now I know you're going to go in the press room and talk with the many Grandmasters in the press room and get their opinions from them and return and talk to us about it. So will you excuse International Master Mike Valvo.

YASSER SEIRAWAN: Who is on the agenda for today?

MAURICE ASHLEY: Well --

YASSER SEIRAWAN: Who is coming?

MAURICE ASHLEY: Lots of people, I think, as you ask. U.S. woman's champion, Angelina -- we also have Monty Newborn with the ACM, who will talk a little bit about the -- we may have Miguel Illescas, a Grandmaster, a favorite of yours and hopefully we will get them on stage later.

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