Thirty years! Happy Birthday Fritz (3)

by Frederic Friedel
11/13/2021 – In 2003 there was a gigantic man vs machine match in New York. Garry Kasparov faced "X3D Fritz", a chess program that used new hardware and software which allowed radically lifelike 3D images, floating hologram-like in front of the screen. The match was an unprecedented success, generating more media coverage than any chess game previously in history. It was also full of adventure for the ChessBase team.

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Marc Armand Rousso, Entrepreneur, philanthropist, chess aficionado, made his fortune in the US as a trader of stamps. He is famed to have bought the Treskilling Yellow, one of the most valuable stamps of all time. went on to found numerous enterprises. One was the X3D Display, hardware and software that allow radically lifelike 3D images that appeared to jump off the (CRT) screen and into the room, using both glasses-based and glasses-free 3D technologies.

To promote this technology Rousso decided to stage a chess match in New York – played without chessboard and pieces. For this he contacted ChessBase, asking us to use his technology to create virtual 3D chess software – twenty years ago!

Fortunately we had a new programmer in our team, someone who was keenly interested in new technologies. Jeroen van den Belt set to work creating a version of Fritz that fulfilled Armand's needs. X3D Fritz could display a vivid, animated chess board, and accepted voice commands for the moves.

In this and other Rousso-driven enterprises I was in New York a number of times with Jeroen – and quite an adventure it was. Armand had a wonderful flat in Manhattan, and gladly let us use it during our stays.

The view from the living room of Armand's flat, over the Hudson – spectacular! 

The view from my bedroom, which directly overlooked Ground Zero, where the World Trade Center had stood and come crashing down two years earlier

So who would be invited to play against X3D Fritz? For Armand things were clear: it had to be Garry Kasparov. And he had to play without board or pieces.

We (Frederic and Jeroen) tested the technology with a number of chess professionals...

Susan Polgar, who helped us with our preparations, found the technology perfectly acceptable

Testing the X3D technology: GM Ian Rogers and US Women's Champion Anna Hahn

Garry, to my surprise, quite spontaneously agreed to play on Jeroen's virtual chessboard, wearing glasses and dictating his moves. He loves new technology!

So the match was arranged for November 2003. For us it started with another adventure. It's a story I need to tell.

The break-in adventure

Our flight was leaving at 7:15 a.m. from Hamburg. Mathias Feist, the Fritz programmer was was travelling with me. We arrived at the ChessBase office, which is just 15 minutes from the airport, shortly before six in the morning. Mathias needed to pick up his notebook, which contained all the main preparation for the match, and some important installation CDs from the office, where everything had been prepared and placed on the desk for him to pick up.

We arrived at the large office building block in which ChessBase is located only to find it surrounded by police cars. We were stopped, and a well-armed police officer asked us exactly what we wanted. When we told him we intended to go up to our offices they said it was completely out of question. There were burglars somewhere in the building complex, probably armed and dangerous, and they were waiting for additional swat teams and dogs before entering the location.

That was quite a dilemma. We did not have time to wait, and explained the gravity of the situation. After a while the officers agreed to allow us up the staircase to our office, where we promised we would quickly nip in to extract the notebook and the CDs. "It will take us just one minute," I said, "and then we will be out of here."

The police built a small swat team to accompany us upstairs. When we arrived at our storey this is what we found:

Yep, the burglars had broken into our office, we were the object of their evil intentions. Note that our doors are made of heavily reinforced glass. The way they had broken in was by heaving a cast-iron manhole cover into it.

The three-man swat team asked us to stand back and entered the facilities. Everything was thrashed, computers had been vandalised, draws opened, lockboxes destroyed. With guns drawn they secured the front half of the office, allowing us to enter the room where the notebook and the CDs had been deposited for us. But of course there was no notebook in sight. Only the Tablebase CDs were untouched. These we grabbed and made a dash for the airport. We caught our plane with minutes to spare. Mathias spent the first leg of the flight shaking his head. Somewhere over the Atlantic, after we had taken a glass of excellent Lufthansa red wine, our hands stopped shaking, and we could start thinking about how to work around the damage that had been done to our preparations for the match (the other staff members in Hamburg could figure out how to repair the damage done to our facilities).

The match

Before the match Kasparov vs X3D Fritz began statistician Jeff Sonas traced the progress of top programs compared to the strongest player alive. Computers were getting there...

At the time GM Joel Lautier summarized the match for us, explaining two key positions:

The first game was a messy affair, with Kasparov outplaying the computer in the opening stage with a typical pawn sacrifice, but failing to convert his advantage due to the computer's clockwork defence.

The second game was a heartbreaker for Garry, as he had skilfully outmanoeuvred X3D Fritz yet again, only to blunder the game away in one move. As we shall see, there was an uncanny feeling that the computer had actually sensed the human champion could err exactly the way he did, for the tactical motif that caught Kasparov off-guard was very cunningly brought about by the machine.

The third game was every grandmaster's dream, the computer entered an unfortunate opening scheme that left the position completely locked up. Unable to devise a long-term plan, the computer shuffled its pieces around aimlessly, while Kasparov was patiently amassing his pieces to deliver the winning blow. In a position it still assessed as inferior but not lost for itself, the computer was made to resign by an embarrassed team of programmers.

The final game was a bit of an anti-climax, with Kasparov playing very prudently to secure a draw in the game and in the match overall.

 
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1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6 4.d3 d6 5.c3 g6 6.0-0 Bg7 7.Nbd2 0-0 8.Re1 Re8 9.d4 Bd7 10.d5 Ne7 11.Bxd7 Nxd7 12.a4 h6 13.a5 a6 14.b4 f5 15.c4 Nf6 16.Bb2 Qd7 17.Rb1 g5 18.exf5 Qxf5 19.Nf1 Qh7 20.N3d2 Nf5 21.Ne4 Nxe4 22.Rxe4 h5 23.Qd3 Rf8 24.Rbe1 Rf7 25.R1e2 g4 26.Qb3 Raf8 27.c5 Qg6 28.cxd6 cxd6 29.b5 axb5 30.Qxb5 Bh6
We join game 2 when Kasparov has just played 30...Bg7-h6. With adroit manoeuvring, Black has transformed a slightly worse position in the opening into a very promising attacking formation in the middlegame. Garry has managed to highlight a well-known weakness common to all chess programs: they consider a pawn expansion in front of one's own castled king (as is the case here for Black) a serious weakening of one's position, and thus wrongly assess the resulting positions. This problem is hard to solve, for if the algorithm is changed, then the computer might start sending his kingside pawns to the attack in all sorts of positions, including those where this would amount to a silicon hara-kiri. What makes the kingside pawn advance favourable to Black here is the fact that the centre is closed, and although clear to a human mind, this concept is a little loose in programming terms. 31.Qb6 Threatening to take the e5-pawn due to the hanging queen on g6. A preview of what is to come.. . Kh7 32.Qb4 A very sly retreat, anticipating, as it were, Kasparov's blunder on the next move. This move has no purpose in itself, and Black would have kept a sizeable advantage had he continued with either 32...Rc8 taking control of the important c-file, or 32...Rg8 to protect g4 and keep pushing the pawns with 33...h4. Rg7?? An amazing howler. Garry immediately realized his mistake after he'd played his move and kept shaking his head in utter disgust with himself. There is no arguing that Garry is still the best showman the chess world has to offer! 33.Rxe5 Suddenly Black's rook on f8, which was defended three times two moves ago, is now found hanging. It's remarkable that in such cases, the computer doesn't pounce on the obvious winning move, but rather takes time as if to enjoy the moment. The few minutes that Kasparov waited for Damocles' sword to fall on him must have seemed like eternity. I was strongly reminded of the classic scene in "2001, a Space Odyssey", when the cosmonaut waits in anguish for the spaceship door to open, already sensing that the main computer has taken control and won't let him back in. dxe5 34.Qxf8 The rest is a trivial win for White. Nd4 35.Bxd4 exd4 36.Re8 Rg8 37.Qe7+ Rg7 38.Qd8 Rg8 39.Qd7+
1–0
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WhiteEloWBlackEloBResYearECOEventRnd
Comp Fritz X3D-Kasparov,G28301–02003B07New York X3D m2
Kasparov,G2830Comp Fritz X3D-1–02003D45New York X3D m3

Four games is too short a distance to gauge the players' relative strengths when they are so evenly matched. As a matter of fact, this encounter did not shed any new light on computer chess. The machine won and lost in the way we were accustomed to and Kasparov is right to say that he was dominating in most of the games. However, his extreme nervousness in facing machines has played tricks on him once more, and he wasn't able to capitalize on his better positions.

Here are games four, annotated for us by Mig Greengard, followed by game one, unannotated:

 
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1.d4 Already a bit of a surprise from X3D Fritz. Computers almost always play 1.e4 against humans because it leads to open positions with sharper, more concrete play, at least speaking very broadly. Of course any chess opening can lead to a sharp position, as we see here. The X3D Fritz team had a specific opening line in mind when they went for 1.d4 in this critical game four. d5 For a long time Kasparov played 1...Nf6 exclusively against 1.d4. That move usually led to the aggressive Grunfeld or King's Indian Defenses. Lately, however, he has been playing the more solid move here, staking out space in the center right from the start. After the game Kasparov said that he wasn't completely surprised by 1.d4 and had done some preparation with his seconds for the match, Grandmasters Yuri Dokhoian and Mikhail Kobalia. (Dokhoian is his long-time trainer.) 2.c4 The Queen's Gambit, offering a pawn to deflect Black's central d-pawn from its solid post. This has been one of the most common opening systems at every level of the game. dxc4 The Queen's Gambit Accepted, as Black accepts the offer of the pawn. Unlike other gambits Black only rarely attempts to hold on to his extra pawn in this variant. Doing so subjects him to too much attacking pressure. Instead he develops his pieces. Kasparov has played this before but the commentators weren't sure he would enter such an open, double-edged opening against X3D Fritz. 3.Nf3 e6 4.e3 Nf6 5.Bxc4 Reestablishing material equality. c5 Black counterattacks the white center immediately. 6.0-0 a6 Threatening to play 7...b5 and 8...c4 with a pawn advantage on the queenside. 7.Bb3 7.dxc5 This is a common line, but of course the X3D Fritz team wouldn't want to see the queens come off the board like this. They want as much activity and piece power on the board as possible to press the computer's advantage in tactics and calculation. Qxd1 8.Rxd1 Bxc5 7.a4 Nc6 8.Qe2 cxd4 9.Rd1 Be7 10.exd4 7...cxd4 Kasparov heads into a line he has played before. You can see why the X3D Fritz team liked this line. All the pieces are still on the board and there are open lines for attack and piece play. There are no lines of blocked pawns to inhibit the computer's calculating ability. The downside is unrelated to the objective characteristics of the position. It's that Kasparov knows this position very well and is likely to have studied it deeply. This turns out to have been exactly the case. 7...b5 This move, quickly developing the bishop to b7, is the most popular here. 8.a4 b4 9.Nbd2 Bb7 8.exd4 Now White has what we call an isolated queen's pawn, a very common structure. The pawn on d4 has no pawns alongside it to defend it and it can be a target for Black's forces. In compensation White has excellent open lines for developing his pieces and the pawn controls important center squares. It is also possible to advance the pawn to start an attack. Nc6 9.Nc3 Be7 10.Re1 0-0 11.Bf4 This move made it clear to Kasparov that the X3D Fritz team was headed into a line that was played in several very high-profile games a few years ago. Kasparov played in two of them, one with white in 1999 and one with Black in 2001! That 2001 game was against no lesser an opponent than world #2 Vladimir Kramnik on the stage in Moscow. Kasparov had won that game and no one had dared to play that line for White since then. Kasparov now started to play slower, warily looking ahead for what X3D Fritz had in mind. More precisely, what the X3D opening book team had in mind. The machine was still playing out of its opening library, not thinking on its own at all. There is a dead giveaway by the way the machine plays its moves instantaneously when it is still in its database book. When that's going on Kasparov knows that he is still following the programmers' preparation. Na5 Attacking the bishop. Exchanges are usually to the defender's benefit, especially in a cramped position. 11...b5 12.d5 exd5 13.Nxd5± Nxd5 14.Qxd5 Bb7 15.Qh5 Bf6 16.Rad1 Qc8 17.Bd6 g6 18.Qh6+- 1-0 Epishin,V-Jonkman,H/Amsterdam NED 2000/(30) 12.d5 Wantonly giving up the weak pawn in order to open lines and create complications. Kasparov himself played 12.Bc2 against world #3 Anand in 1999. 12.Bc2 b5 'Illescas C ordoba: Este resulta ser el mejor metodo para desarrollar el alfil de b7; el peon en b5 tambien puede ser util en un futuro para hostigar al caballo blanco de c3 mediante el avance b5-b4' 13.d5 1/2-1/2 Kasparov,G-Anand,V/Wijk aan Zee 1999/CBM 69/[Huzman] (22) 'Illescas Cordoba: Un interesante sacrificio de peon cuyas consecuencias no quedan claras tras esta partida aunque promete una indudable compensacion a las blancas. Lo cierto es que a estas alturas del encuentro yo habia comprendido que en esta variante, tras la jugada 7.Bb3, las negras obtienen una comoda posicion si consiguen desarrollar a tiempo el flanco de dama. Por ello habia preparado esta entrega; las blancas abren el juego en un momento muy oportuno, con el alfil negro todavia en c8 y el caballo algo descolocado en a5' 13.Qd3 Bb7 14.Be5 g6 15.Qe3 Nc4 16.Qh6 Bxf3 17.gxf3 Nh5 18.Ne4 f5-+ 0-1 Akesson,R-Degerman,L/Ronneby 1998/EXT 99 (23) 12...Nxb3 13.Qxb3 After this Kasparov went into a very long think. He had faced this exact position two years ago in Moscow against his arch-rival, world #2 Kramnik. They were playing a match of blitz, games with just five minutes per player instead of the two hours plus of classical chess. Kasparov's was wondering if he should continue to follow the line from that game. He beat Kramnikspectacula rly in that 2001 blitz game by sacrificing his queen and winning a wild tactical melee. But surely trying that against X3D Fritz would be close to suicide. It was just that sort of position the computer team dreamed of when they told X3D Fritz to play this line if given the chance. So Kasparov sat there for a while looking at the alternatives. He was mentally thumbing through his years of memorized analysis and looking to see what dangerous improvements the X3D Fritz team might have found. exd5 Kasparov avo ids the wild queen sacrifice line and recaptures with the pawn. Grandmaster Yasser Seirawan, one of the ESPN commentators, didn't like this line at all against a computer because of the many open lines. The alternatives were worse, however, at least according to Kasparov. This move has also been played before in top level games and this is a factor in Kasparov's favor. He would definitely have analyzed those games. 13...Nxd5 A remarkable queen sacrifice originating with Alexei Shirov. 14.Rad1 Nxf4 15.Rxd8 Rxd8 16.Rd1 Nd5 17.Ne5 17.Nxd5 exd5 18.h3 b5 19.Rxd5 Be6 20.Rxd8+ Rxd8 21.Qc2 1/2-1/2 Gelfand,B-Shirov,A/New Delhi/2000/CBM 80 (21)' 17...Bf6 18.Nc4 Rb8! 18...Nxc3 19.Rxd8+ Bxd8 20.Nb6! 19.Na5?! 19.Nxd5 exd5 20.Ne3 Be6 20...d4 21.Nd5 Be5 22.Re1 Bd6= 21.Nxd5 Bxb2 22.Qxb2 Rxd5 23.Rxd5 Bxd5= 19.Nb6 Nxb6 20.Qxb6 Bd7 21.Ne4 Be7= /=/+ 19...Bd7 20.Ne4 20.Nxd5 exd5 21.Rxd5 b6 22.Nc4 Be6 20...Be7 21.Nc4 Bb5 22.Ne5 Be8 23.h3 b5 24.Qg3 Rbc8 25.Kh1 a5 26.h4 a4 27.Ng5 h6 28.Ngf3 Nf6 29.Rxd8 Rxd8 30.Qf4 Rd1+ 31.Kh2 Bd6-+ 32.g3 Bc6! 33.g4 Rd3! 34.Kg1 Bxf3 0-1 Kramnik,V-Kasparov,G/Moscow 2001/CBM 87/[Huzman] (34) 14.Rad1 Played instantly, showing that X3D Fritz was still in its opening library. Black is unable to hold on to the extra pawn. Be6 15.Qxb7 Getting the pawn back, but now the queen is exposed on b7. Bd6 Kasparov offer s exchanges to weaken White's attacking forces. Another move played here is the much more complicated 15...Bc5. Anand played that move against Kramnik in 2001 and a few months later his Indian compatriot, Sasikiran, tried it against Bacrot. The extreme complications arising from that move are exactly what any human would want to avoid against a computer beast like X3D Fritz. 15...Bc5 16.Be5 Qa5 16...a5 17.Nd4 Nd7 18.Bg3 Re8 19.Ndb5 h5 20.Nxd5 h4 21.Bf4 Bg4 22.Nbc7 Rxe1+ 23.Rxe1 Rb8 24.Qxb8 Nxb8 25.Re8+ Qxe8 26.Nxe8 Nc6 27.Nef6+ gxf6 28.Nxf6+ Kf8 29.Nxg4 1-0 Bacrot,E-Sasikiran,K/Lausanne 2001/CBM 82 ext (42) 17.Nd4 Bxd4 18.Rxd4 Nd7 19.Bd6 Nc5 20.Qc7 Qxc7 21.Bxc7 Rfc8 22.Bg3 Ne4 23.Nxd5 Bxd5 24.Rxd5 Nxg3 25.hxg3 1/2-1/2 Kramnik,V-Anand,V/Monte Carlo 2001/CBM 81 ext (76) 16.Bg5 Keeping the bishop on the board and pinning the knight on f6 against the queen. Rb8 17.Qxa6 Kasparov was relieved when the computer actually thought for a while before playing this obvious move. That meant it was finally out of its opening library and he wasn't out of his! Now he didn't have to worry about a nasty prepared surprise. Kasparov had analyzed this position extensively in the past and didn't think Black had anything to fear. Rxb2 18.Bxf6 Making things easier for Kasparov. The world #1 had already seen through to the completely equal endgame that is now coming. X3D Fritz could have kept more material on the board instead of exchanging, but it doesn't know how to do anything other than play the best move. If a move that simplifies is rated as 0.01 points better than an incredibly complicated move it will play the simplifying move even though it would have much better winning chances against a human by playing the complicating move. One thing the X3D Fritz team might not have been aware of is that the previous game to reach this position was played by GM Andrei Kharlov, a Russian who has been part of Kasparov's analysis team several times. This would significantly increase the chance that Kasparov would know this line inside and out. 18.Re2 Rxe2 19.Qxe2 Be7 20.Qd3 Qa5 21.Bxf6 Bxf6 22.Nxd5 Qxa2 23.Nxf6+ gxf6 24.h3 Qa5 25.Qd4 Kg7 26.Qe3 Re8 27.Rc1 Rc8 28.Rxc8 1/2-1/2 Dorfman,J-Kharlov,A/France 2001/EXT 2002 (28) 18...Qxf6 Kasparov wa s now playing his moves quickly and with a peaceful look on his face. He knew the danger was past. Black has absolutely no winning chances in these lines as there is no way X3D Fritz is going to make a huge blunder. In simple, open positions computers are all but invincible. The draw was now becoming apparent. 19.Qxd6 Qxc3 20.Nd4 If White tries to save the a-pawn it can come out on the worse end of the position. X3D Fritz is content to play a line in which it eliminates Black's central passed pawn. 20.a4 Ra2 20...Rxa2 21.Nxe6 fxe6 22.Qxe6+ Kh8 It's White to play, but Black's double attack on the f2 pawn forces X3D Fritz to defend instead of grabbing the d5 pawn. It's completely equal with no winning chances for either side. 23.Rf1 23.Qf7 Qc8 24.Qxd5 Raxf2 25.Rf1 Qc2 26.h3 h6 23...Qc5 Continued precise play from Kasparov. The triple attack on f2 leads to further exchanges. 23...Rd2 24.Qe1 Rd3 25.Qxc3 Rxc3 26.Rxd5 24.Qxd5 Rfxf2 The point! Black isn't losing his queen here because he is threatening checkmate in two moves. Of course X3D Fritz had seen all this coming too. Still, it's a pretty way to end a rather technical final game. Both sides have serious back-rank problems; their kings have no way to escape a check on the rank. With all the heavy pieces on the board this creates various tricks, but both Kasparov and X3D Fritz were up to the task. 25.Rxf2 25.Qxc5?? Rxg2+ 26.Kh1 Rxh2+ 27.Kg1 Rag2# Checkmate! 25.Qd8+ Rf8+ Blocking check with check, a rare and attractive tactical theme that saves the day. Kasparov had foreseen all of this as early as a dozen moves ago. 26.Kh1 Raf2 26...Rxd8?? 27.Rxd8+ Qf8 28.Rdxf8# 27.Rxf2 Qxf2 28.h3 25...Qxf2+ 26.Kh1 h6 Eliminating the back-rank weakness by giving the king some air (usually called the German "luft"). 10 moves earlier online commentator Mig Greengard has predicted the game would finish drawn in this position. But X3D Fritz ruins that prediction by playing one more useless move first. 27.Qd8+ 27.Rc1 Any human would have played this move just to see if Black might blunder. It isn't immediately obvious how Black can deal with the threat of Rc8+ with a winning attack. The black rook can't go to a8 and if it blocks with ..Rc2 then Qd8+ Kh7 Qd3+ wins the rook with a fork. Three-time US Champion Joel Benjamin was momentarily alarmed, thinking that perhaps Kasparov had missed this trick in what looked like a safe position at last. Qc2! This is the way! Black offers the queen to block the check and White cannot capture without being checkmated! A nice trick that Kasparov had to have seen long ago or this line could have meant trouble. It turns out there is another way to save Black, but it's not nearly so clear or pretty. 27...Ra6?! Unnecessarily complicated. 28.Rc8+ Kh7 29.Qe4+ Rg6 30.h4 Qf1+ 31.Kh2 Qf6 32.h5? Qd6+ 33.Kh1 Qd1+ 34.Kh2 Qxh5+ 28.Rxc2?? 28.Rf1 Kh7 28...Ra1+ 29.Rc1 Rxc1+ 30.Qd1 Rxd1# 27.Rb1 Rb2 28.Ra1 Rb8 27...Kh7 White cannot make progress and has to worry about its own king and the attack on g2. ½–½
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WhiteEloWBlackEloBResYearECOEventRnd
X3D Fritz-Garry Kasparov2830½–½2003D27X3D Man-Machine World Championship4
Kasparov,G2830Comp Fritz X3D-½–½2003D45New York X3D m1

Media bomb

The match between Kasparov and X3D Fritz was an unprecedented success, generating more media coverage than any chess game in history. At one stage there were 46,000 articles listed in Google, the event was carried live on the Internet to literally millions of viewers, and it was shown in 17½ hours of live broadcast on America's biggest cable TV sports channel, ESPN.

Postgame wrap up, with Kasparov, Maurice Ashley, Paul Hoffman and Yasser Seirawan

Live satellite broadcast trucks outside the venue, the posh salons of the New York Athletic Club

Links

All Fritz history articles


Editor-in-Chief emeritus of the ChessBase News page. Studied Philosophy and Linguistics at the University of Hamburg and Oxford, graduating with a thesis on speech act theory and moral language. He started a university career but switched to science journalism, producing documentaries for German TV. In 1986 he co-founded ChessBase.

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