SPEAKER: Deep Blue is the child of IBM's investment and research, which takes place at seven sites around the world. That research ranges from basic science, to working on people's everyday problems. And Deep Blue technology covers that whole spectrum. I would like to introduce to you Dr. Paul Horne, the senior vice-president of IBM, and heads up the IBM research division. MR. HORNE: Thank you, and welcome. IBM research has pulled together what I believe is one of the strongest collections of technical talent ever assembled. You may know that that's the group that invented the disk drive, the D-RAM, relational database, RISC architecture. The list goes on and on. Five Nobel prizes, numerous national medals for technology and science. And over the last eight years, some of the best of that technical talent has been focusing on a problem that's as old as computer science: The problem of computer chess. Actually, computer chess goes back to 1833. The first chess schematics were built -- were pulled together by a guy by the name of Babbage in that year, never constructed the machine, but believed he could build something that would be able to play chess versus a human being. And in 1915, the first Torries built the first chess computer, and that chess computer could actually do a rudimentary endgame, a rook and a king vs. a king. The first real chess computer was built actually by one of the fathers of modern information theory, Claude Shannon. And we actually have that computer here. It was built in 1949. It could do a rudimentary endgame. Actually, the technology, as you might guess, pales compared to what we have available today. What we're talking about today and thinking about today goes far beyond the ability of a computer to supplement man's ability to play chess. It's one of the fundamental issues of the 21st century. IBM, just one company, has 170,000 pages, home pages on the Internet. It would take a fast reader, operating seven days a week, full time, five years to read it all. We talk about the 21st century as the information age. But all that data is going to be useless unless it can be boiled down into something useful, transferring random pieces of information into useful information, and ultimately into knowledge and potentially wisdom, is the key challenge we all face for the 21st century. And it's that technology that we're testing here. That technology is our ability to interface with the data and the world that's around us and pull in key pieces of information that are going to be important for the future of all our societies. So with that background, we believe we're asking the computer and ourselves a much more difficult question than whether it can play chess, but whether or not it can start the beginnings of understanding. So with that introduction, let's get on with the game. SPEAKER: Next I would like to introduce to you Monte Newborn. He is chairman of the ACM Computer Chess Committee, and he is responsible for the officials and commentators for the game. In fact, Monte will oversee the match. MR. NEWBORN: I'd like to begin by saying what a great pleasure it is to be a part of this incredibly exciting chess match. On behalf of the ACM, I'd like to thank IBM and the Garry Kasparov team for inviting us here to serve in an official capacity. This event is going to be a tremendous landmark in the history of computing. And I just want to point out one interesting fact. The first game that was played by a computer, first chess game was played in 1958 on an IBM 704, in I believe the same Yorktown Heights where the computer is playing today. 30 years ago it was played on a computer that was one million times slower than the computer that's playing today. Imagine an automobile a million times faster. Last year the score in the match between Kasparov and IBM was 4-2 in Kasparov's favor. Both sides are going to be stronger this year. Kasparov is playing the best chess of his life, and IBM's program is clearly stronger than it was last year. So it's a tremendous challenge between the two competitors. I'd like to at this point introduce the commentator team and some of the officials, and then we'll begin, but I'll end my own personal remarks by wishing both sides the best of luck. The match arbiter is Carol Jarecki, who is sequestered upstairs on the 35th floor, and she has been the arbiter of a number of major world championships in the past and will add her expertise to making sure that everything goes smoothly at this time. You won't see her, but you may see her on television. She's maybe got her back to us now. The other officials are Ken Thompson, Mike Valvo, and myself. We will serve as officials in the sense that we're an appeals committee if there's any problems that go beyond the match arbiter. Our commentary team is a tremendous team who will bring this match to life. Maurice Ashley. Maurice is one of the commentators. Maurice is one of the top players in the New York area, on his way to the title of Grandmaster. He has served as the commentator in the Philadelphia match last year, and brings it to life as well as any football announcer on CBS and NBC. Yasser Seirawan is our second commentator. Yasser has been three times the U.S. champion, is a tremendously articulate chess whiz and will assist Maurice in the commentary. Mike Valvo is our third commentator. Mike has served as an arbiter and commentator at countless computer chess events and a number of major human matches as well. Mike is one of the best blindfold chess players in the United States, so don't try and fool him by thinking he doesn't see what's going on. I wish everybody a very enjoyable afternoon and in fact an enjoyable week of chess. And again on behalf of the ACM, I'd like to thank IBM and Kasparov for inviting us here. Best of luck. MAURICE ASHLEY: Hello, and welcome once again to the IBM Kasparov vs. Deep Blue rematch. I'm Maurice Ashley, along with International Grandmaster Yasser Seirawan and International Master Mike Valvo. And this match I guess is for bragging rights as to who has the best chess mind in the universe. At least that's what it's been billed as. Garry Kasparov says he's here to defend humanity against the ever-encroaching wave of computers. He's about ready to start, not quite yet in the room. Before we get to that, I'd like to get a few comments from my associate, Yasser Seirawan. Yaz, what do you think? Has the time come? Have computers gotten good enough yet to whip the best human being? MR. SEIRAWAN: No. (Audience laughter.) Next question? MAURICE ASHLEY: Next question. Let me mention over here, to Mike Valvo, you've been arbiting these computer tournaments for 15 years now, since 1980. Before we do that, Kasparov has arrived. And he's looking quite chipper. The guy doesn't look worried at all. There is Feng-Hsiung Hsu of the Deep Blue team, all prepared, a lot of photographers and a lot of press. USA Today, CNN, New York Times is providing practically hourly coverage, and this is going live over WebTV and many museums around the country also live. Kasparov is now adjusting his pieces. Mike, what is your opinion of this match? Does the computer have a chance? MIKE VALVO: I think the computer definitely has a chance. I think people are just too down on computers. They think that computers are going to eradicate the human race, like "2001" or something. But as Ken Thompson said to me, "Do you think that you can compare a footrace to a car running? Is it the same kind of thing?" They are enhancing to us. They aren't the enemy. They are helping us. That's my position. MAURICE ASHLEY: Why are we so terrified, then? Why is it that everyone is saying no? A friend of mine, Josh Waitzkin, who is the subject of the movie "Searching for Bobby Fischer," says this is one of the most terrifying things he can think of. He doesn't want the computer to win, thinks the computer is going to take over everything. MIKE VALVO: A lot of people think the game is going to get solved and no one is going to play anymore. MAURICE ASHLEY: Is that going to happen? MIKE VALVO: I doubt it. Checkers has been mastered by a computer, and there's still checkers. MR. SEIRAWAN: I think that absolutely with chess, regardless of whether or not Deep Blue wins this particular match, or a future match, I'll always want to beat my brother -- or Maurice! I guess we're getting ready. MAURICE ASHLEY: I think we are getting ready. Kasparov has put his game face on. (Audience laughter.) All the smiles are gone. He has drawn the white pieces. The drawing of lots was made two days ago, and Kasparov got the white pieces, unlike in the first match where he had the black pieces. Kasparov has said that the first couple of games will be sort of like a reconnaissance mission. He's often complained that he does not know anything about this new version, the sort of big brother to little brother from last year, and he wants to know what's better, what has improved, what could be improved. Well, one thing that we know has improved is the calculating speed. It's double what it was last year. I mean that's frightening. 200 million moves a second. MIKE VALVO: Positions. MAURICE ASHLEY: 200 million positions a second. Even more frightening. You just played in the Aegon tournament, a tournament in which you did very well, five and a half out of six? MR. SEIRAWAN: Five and a half out of six. MAURICE ASHLEY: Last year you were 6-0, the tournament winner. MR. SEIRAWAN: Right. MAURICE ASHLEY: What's the strategy against computers? What do you do to beat this kind of thinking? MR. SEIRAWAN: First of all, you have to just start from the perspective that it's truly amazing to think that a game of chess, which is such a complex but structured world, you can have a chess computer play against the world's best. And in this particular tournament and in Aegon, it featured the best computer -- microcomputer programs. I should hasten to say "microcomputer." Deep Blue, as you perhaps well know -- we have a mock-up on the stage here. This is half of what Deep Blue looks like. It's got 16 nodes, and 32 processors, so this is half of what Deep Blue is like, and this is not a microcomputer. But I was playing against microcomputers, and they're extremely good, and you have to adjust your way of thinking. And computers have forced us to adapt. In a sense what you were saying earlier, Mike, I tend to look at the computer as a great aid, as opposed to, you know, the terrifying thing that's going to replace me. MAURICE ASHLEY: Sorry for interrupting, Yasser, but it seems as if Kasparov just wants to get it on, and you've got all these press people in the room, and they're trying to get them out right now. (Audience laughter.) "Let's get busy." And you know he knows exactly what he wants to do today. There won't be any surprises as far as his initial moves are concerned. Last year, he did figure out what to do against the computer with the white pieces, and by game six he dominated the computer completely. It's going to be interesting to see what he tries today. Is he still waiting for the room to more or less clear so that he can get started? MIKE VALVO: They're really in his space, aren't they? They put a camera right in his face. MAURICE ASHLEY: They want some good pictures of him. MIKE VALVO: Last year for the first five minutes we couldn't control the photographers. They just clamored all over the place, and he just sat there as though nothing was going on. That was part of the agreement. We had to let them do it. After five minutes we just chased them away. MAURICE ASHLEY: You were in the room; you were the arbiter. What did you see about Garry's moves at the beginning of games, especially at the beginning of the first game as it is now? MIKE VALVO: He was very confident. His watch was on, which is a very important sign, and his coat was on. Those are important signs. MAURICE ASHLEY: We will tell you about the coat and the watch that will be going on. Garry Kasparov has certain tell-tale signals. When the watch goes off, that's something, and when the coat is off, "Uh-oh, I'm in trouble. I've got to get myself out of this." Trust us, he does that every single game. We'll pay attention to that. He's very, very visual. He shows his emotions quite a bit, and you will know how he feels at practically every moment, because he doesn't hide his emotions on the board. And he has played a move. The game has started. The match has begun officially with the move 1 Nf3. MIKE VALVO: He predicted that. MR. SEIRAWAN: How many of you were around -- MAURICE ASHLEY: Deep Blue has responded with d7-d5. Kasparov has replied instantly g2-g3, and the computer has also responded immediately -- these moves will come very quickly -- Bc8-g4. MIKE VALVO: This is new. The computer didn't play this last year. MAURICE ASHLEY: And already, Bc8-g4. We should mention on the Deep Blue team there are very many programmers. They also have an acknowledged expert, another Grandmaster and former U.S. champion, Joel Benjamin. He has basically dedicated a year of his life to avenging the loss from last year, and he has no doubt worked on all the opening niceties, that he needs to check the weaknesses the computer has. And so Garry very much feels, Yaz, that he's playing against the mind of Joel Benjamin as well as against Deep Blue? MR. SEIRAWAN: Certainly for the opening stages, certainly. And let me just go with that. Once again, Philadelphia, how many of you were there? That's a very good representation in the audience. As you'll recall, Maury and I, Mike, just about everybody in the world of chess was totally stunned when Deep Blue massacred Garry in game one. And it was really a shock. By the time they got to the end of the match, game six, Garry looked like he was just conducting an orchestra, and he in turn clobbered Deep Blue in game six. And he clobbered Deep Blue with the opening that he chose already in game one. One of the problems that Garry has had and will have in this match is he doesn't really know anything about Deep Blue, or, how do you say, the new, improved Deep Blue. And so IBM has kept its research rather secret. Certainly Joel Benjamin has been in with -- MAURICE ASHLEY: I was trying to get some stuff from him. No information. MR. SEIRAWAN: His eyes lit up when you showed him the five bucks. MAURICE ASHLEY: They did. MR. SEIRAWAN: No. But the truth of the matter is, the openings were -- will be crucial throughout this entire match, because what we know today about computers is in sharp, calculating positions, they can outplay everybody, including Garry Kasparov, the world chess champion. Now, in other types of positions, closed or blockaded positions, the thinking is that the human will outplay Deep Blue. So Garry has adapted to that. As white normally Garry plays the sharpest, most attacking opening lines, but against Deep Blue his style, as he discovered in the first match, was to adapt, to play a little bit cagey, to play closed positions. And since he did so well in game six, he's going to find out how Deep Blue is going to respond. MAURICE ASHLEY: Why is it so hard to program the strategy of closed positions into computers? It would seem as if the humans would have solved this problem by now, but computers still, from what we've seen, do not play closed positions -- as positions with pawns still on the board, locking up of lines -- still don't play very well. MIKE VALVO: You've got to realize that computers think not the same way that humans do. A human looks at the position and sees the potential in the position. A computer looks at it and just sees the position. He answers all the positions, says, "I'm ahead," "I'm behind," and when it makes a continuation, it projects all the moves and compares the sum of that position with the sum of some other position. So it's not really thinking the way humans move. We have a new move? MAURICE ASHLEY: We do. And Kasparov has played an unusual move, Yaz, b2-b3. And in the first two moves Deep Blue had responded instantly, but after this new twist Deep Blue has decided to give the position a little bit of a think. MR. SEIRAWAN: Well, let's just talk about the opening for a second. One of the things that we hope to do, first of all, is to involve our audience in our discussions, and at the same time not talk completely encyclopedic about chess, but to give you some insights about what's going on. What we have in the opening move is the developing move Nf3. Deep Blue took the center with the move d5, then came g3. The idea is to put this bishop, to fianchetto this bishop on the long diagonal by putting the bishop on g2 and castling behind the bishop. This is known as building a house. When Deep Blue responded with the move Bg4, what he was doing was putting direct pressure upon this knight and threatening to capture it. And the normal response would have been to defend the knight with the move Bg2 so that the pawns would not have been doubled. From a positional consideration, it's considered a disadvantage to have your pawns doubled. Garry's move, b2-b3, simply ignoring Deep Blue's threat, is a surprise. I would not have predicted this move, and so he, Garry, certainly has an idea of inducing Deep Blue to give up the two bishops. MIKE VALVO: Let's just think about that for a second. Garry has another motive in mind here. He wants to get the machine out of book. MR. SEIRAWAN: What do you mean by "out of book"? MIKE VALVO: Computers play openings very badly, and what has been done is we programmed into the machines all of the games that have been played before as much as we can, and we call that "book," prior knowledge. So the computer doesn't have to think on its own in the beginning; it just plays moves other Grandmasters have played. Here it's obviously on its own. It would have replied right away if it had something in its book, so it's thinking. This is to Garry's advantage. MIKE VALVO: Another advantage Garry has, he wants to find out if in fact bishop-takes-knight is going to occur. The computer thinks bishops are significantly better than knights, so it probably won't take it even though it's going to get a doubled pawn back as an advantage. Garry has two advantages here. He wants to get out of book, and wants to find out what the computer is going to do. MAURICE ASHLEY: The computer has in fact ignored capturing the knight on f3 and instead has developed a night from b8 to d7, and it did not take it too long to make this response. Garry in the meantime looked very confident. He was aware of what he had done by playing the move b2-b3, and now has responded immediately with the move, the very natural developing move, Bc1-b2, controlling the e5 square. What do you think about this position? MR. SEIRAWAN: A normal, average position. We can't look too deeply into the game right now at its earliest stages. We'll probably in a few moves' time come back and start rethinking what has taken place. I just wanted to add a few things and get Mike's comments too. Essentially we now know today that Deep Blue is doing this incredible calculation of 200 million positions per second. MIKE VALVO: Think about that for a second. (Audience laughter.) MR. SEIRAWAN: Every five seconds, Deep Blue is looking at a billion positions. And if it thinks for a minute, then it's looking at 60 billion moves a second. Have I got that right? No, it's six billion. MIKE VALVO: I was never very good at math. (Audience laughter.) MR. SEIRAWAN: 12 billion moves -- MIKE VALVO: It's a big number. MR. SEIRAWAN: It's a big number. The average length of time -- The time control is 40 moves in two hours for the first session. To be clear, it means that Deep Blue has two hours of thought to make its first 40 moves, then one hour to make its next 20 moves, and then a half an hour for the rest of the moves for the third time control. Is Deep Blue thinking when Garry is thinking? MIKE VALVO: Definitely. And you should build into your formula that the computer has to reserve maybe 20 minutes because it might break down and they have to replace it with another machine, and that all counts against them, so they don't really have the full two hours in terms of thinking. They have to have that reserve time in case something goes wrong. But yes, they are going to be thinking on Garry's time. What they're going to be thinking about, however, is they're going to guess the best move they think Garry can play, they're going to analyze that. If Garry doesn't play that move, then all that thinking is wasted. So the next question is, how often do they guess right? How often do you think they guess Garry's move? AUDIENCE MEMBER: 50 percent. MIKE VALVO: 50 percent is correct. The computer guesses Garry's move 50 percent of the time. MR. SEIRAWAN: That's pretty amazing. MIKE VALVO: Pretty amazing. That means they get twice as much time for that move. MAURICE ASHLEY: Kasparov has written down the last move Deep Blue has played, which is e7-e6, has advanced a pawn one square. And the position again, as you can see, remains blocked. No locking of pawns as yet, no exchanges of pawns in the middle of the board to open up lines, and it's a pretty quick opening going on. I mean you can see that Kasparov is kind of keeping it at arm's length, just making sure that he plays very carefully. Doesn't want to blunder; doesn't want any kind of crazy tactical melees starting too soon. Do you think, Yasser, that he's probably satisfied with an early draw in the beginning? MR. SEIRAWAN: Oh, no, no, no. MAURICE ASHLEY: Would he be happy to draw just to get rid of the nerves? MR. SEIRAWAN: No, I think that chess, very similar to, say, tennis, having the opening move, that is to say "the right to serve," is quite an important advantage, especially amongst chess professionals. And Garry will definitely be at a disadvantage when he has black in this match. I mean Deep Blue will really put a lot of pressure on Garry throughout the match when Deep Blue has white. So Garry knows that his best opportunities of winning the match are when he's white. So I think he was perhaps a little disappointed to have white in the first game, because I agree with you, he would like to make an early draw, but with the black pieces, not with the white. I'm sure he feels pressured today to do his utmost to win. MAURICE ASHLEY: The other thing is if he loses this game, he'd be in a huge hole. Last year when he lost, he lost with the black pieces, and he could come back with the white pieces and be very aggressive, do what he needed to do. But this time, in this game, that could be a big hole. May not get another chance until game three. He's now moved his bishop from f1 to g2. Normal developing move, getting all the pieces out. Soon he will be castling. And, Mike, you made a comment about all the positions that the computer is analyzing. You say 200 million positions a second. Chess is such a rich game that what happens with those moves, or even 90 percent of these moves? They can't be really good chess moves? MIKE VALVO: They're junk. Most of the positions are junk. And a human can easily say, "Well, I won't even bother looking at this because it's no good." That's the advantage humans have. They can disregard a whole bunch of moves. Computers got to look at absolutely everything. MAURICE ASHLEY: What's the advantage of 200 million positions a second that turns out to be junk? I know myself only two or three moves -- MIKE VALVO: They're moving quickly again. MAURICE ASHLEY: No doubt Deep Blue anticipated the last response and has quickly played Ngf6. MIKE 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 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. MAURICE 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. (Audience 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. MAURICE ASHLEY: Kasparov has castled -- MR. SEIRAWAN: Bringing his king. This is known as building a house. What Garry has done is fianchettoed 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 representation of the chess game. And in the lower right-hand corner, you see those nice little green and red bars? The chess engine called Fritz is giving its evaluation. So you see the evaluation, a plus-over-equals. In chess-speak, that means that the computer believes that white has a slight advantage. Right next to it you have an evaluation of .22. What that means is that the computer believes that Kasparov's position is 22 hundredths of a pawn better; that is to say that Garry has an edge of two-tenths of a pawn. MAURICE ASHLEY: Sorry to interrupt you, Yaz, but Deep Blue has played another move, c7-c6. A very solid move indeed, and this would not be typically the strategy you would expect a computer to employ. You would expect much more sharp moves. Right now it's playing a very solid position. One thing I heard, though, is that this year they've tweaked it a little bit and given it more chess knowledge, so to speak, given it a certain ability to play these types of positions that it really did not have in the past. How successful do you think it could be at this, Mike? MIKE VALVO: I think it could be the critical factor as to how well Deep Blue does this year. I know from behind-the-scenes kind of stuff that the whole positional evaluation that they had before has been improved. And if they are able to solve a lot of these pinning situations -- they had a problem with pins last year -- if they could solve those kinds of situations, they could be a real problem for Garry. One of the questions that I didn't finish answering, you had asked before, why can't computers play well in blocked positions. Well, in open positions they have a thing called move extensions. Which means, if I capture something, I'm not going to stop analyzing there. I'm going to see what happens. If he can recapture, then I will exhaust all capture situations down to their end, which is something I'm not going to bother doing in some blocked positions, not even have the opportunity of doing. In tactical situations that could be a big edge to the computer. Tactical situations in fact are to a computer's advantage. MAURICE ASHLEY: Right, we saw that in game one last year where Kasparov -- MR. SEIRAWAN: Got massacred. MAURICE ASHLEY: Got crushed. He sacrificed a pawn thinking that he had a great king-side attack, but the computer had calculated it to the finish, and admittedly humans would not have taken that pawn, unless you were drunk or something, but in that situation the computer had worked everything out to Kasparov's being crushed, instead of itself being mated. And so Garry ended up losing that game, and he learned his lesson well and avoided sharp, open, tactical positions from that moment on. MIKE VALVO: Can I tell you something from last year's game that wasn't well known? MAURICE ASHLEY: Please. MIKE VALVO: Garry left his score sheet behind. That's the only game he forgot his score sheet. He was pretty upset. MR. SEIRAWAN: You're talking about the game he lost in game one? MIKE VALVO: The game he lost, yeah. MR. SEIRAWAN: Probably didn't want to keep it. MIKE VALVO: If you are familiar with chess collectors, score sheets are worth about 50 to $100 a score sheet. He asked me later, "What happened to my score sheet?" MAURICE ASHLEY: Well, there are two perspectives on this match. Some people think it's a total mismatch. On one side you have Garry Kasparov, world champion, acknowledged being maybe the best player of all time. Just had a great tournament, Las Palmas. Massacred everybody. His rating is now 2820, something frightful, up in the stratosphere. He knows everything -- eats, drinks, talks, sleeps chess. You don't want to be near the man on a chessboard because you're going to get killed. And in addition to that, he devastated the computer last year, 4-2, three wins. After the first game, didn't lose another game, looked very confident. People are saying, "Well, it's all Garry." On the other side, Deep Blue has improved to 200 million positions a second, double what they did last year. On a key note, it played at least even with Garry three of those games last year -- drew two and won one. Maybe its chances are not so bad, especially with all the help it's gotten over the last year. Kasparov has been thinking about other things other than Deep Blue since last year, and all the Deep Blue team has been thinking about is this match, the be-all, end-all of their existence to the moment. I do want to say this about those following over the Internet. Some will see this visually, some with WebTV will be able to watch all the action as it's happening now. Some won't, so we'll try to set everything up for you as Yaz did before. We have three huge computer screens, one showing the board at all times, another showing Garry -- sometimes the board, and sometimes the operator. Unfortunately, we'll never get a chance to see the Deep Blue screen. We do have a clock. This is a new clock that Garry Kasparov has instituted, and it shows the time, what's going on. Right now Kasparov has used 12 minutes, and Deep Blue has used eight minutes. So it's a little bit ahead on the clock. On the second screen we do have Fritz 4, where we'll do all our analysis. Right now, not too much happening, because pawns are not touching. MR. SEIRAWAN: Yes. MAURICE ASHLEY: What should be the plan here? MR. SEIRAWAN: We see Garry as kind of -- he seems to have his head in the sky a bit there, what he would like to do. Essentially what people miss about chess, as far as the opening is concerned, the entire purpose of the opening is to get a playable middle game. That is to say, hey, the kind of position that the player would like to play. And then as it kind of dovetails into the middle game, the idea is "What will be my overall strategy?" So Garry is not looking seriously -- he is not looking at one or two moves in distance acquisition. What he's thinking is "What I want to do overall with my pieces." Now, the essence of the question that he has to ask himself is, "How do I control the board? What is happening?" And in chess, in great battles, like in warfare, is to control the center of the board. And by the center of the board, I mean specifically the squares from c4, d4, e4, all the way from e4, e5, e6, back to e6, d6, c6, and back through c5 and c4. This area here is the center of the board. So what Garry could consider doing is bringing the c-pawn to the c4 square, bringing the d-pawn to the d4 square to control e5, or trying to advance his e-pawn later in the game. The point is, what Deep Blue has set its defenses around is the key square, the d5 square and the d5 pawn, very powerfully supported by the c6 pawn and the e6 pawn. So what Garry has to say to himself is, "How am I going to make a dent in Deep Blue's position?" And again, he's not looking at one or two moves. He's saying, "Overall, what will my key strategy be?" And quite frankly, he has, I would say, three key strategies. The first key strategy is to play the move c2-c4 followed by Nc3 and try to play on the left flank, or the queen-side flank. A second strategy would be to try to play d2-d4, bring the knight on b1 to e2, and follow up with Nf3-e5, playing on the dark squares. And the third strategy is to play the move d2-d3, followed by Nb1-d2 and then e2-e4. MAURICE ASHLEY: We should note that the watch is off! (Audience laughter.) And that means another 20 minutes, probably. MR. SEIRAWAN: I must say that I have played Garry countless blitz games. That is to say, "fun" games. They weren't THAT much fun, but we played a lot. (Audience laughter.) And we have played together seven tournament games, including a game played in the Olympics. My score with Garry is two draws, one victory for me (pumping fist) -- yay! -- now the bad news -- three victories for him. And during this many hours of playing with Garry, and also not just playing against him directly, but also being in competitions with him, he reveals himself. Garry is very much an open person, and he wears his emotions openly. When he doesn't like his position, he's shaking his head, and he's gnashing the teeth and -- grrrr -- growling. And when he's winning, he's beaming. MAURICE ASHLEY: Surprise, surprise. The move has come quickly. He's played the move d2-d3, and instantly Deep Blue has responded with Bd6. Now, this means one of two things -- MIKE VALVO: This means one of two things. MAURICE ASHLEY: Kasparov has continued the bravado and played Nb1-d2. And the action came pretty quick there with Deep Blue still continuing, as if saying, "I dare you to top this," he's castling. And Kasparov is instantly responding h2-h3, so a flurry of moves --