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Kramnik and Deep Fritz Draw, Tied Before Final Game

iskander writes "Man and Machine were content to draw in game 7 of the Brains in Bahrain match. Now it's all down to the final game, in which Kramnik will enjoy the advantage of playing with white. It is worth noting that game 6, in which Kramnik may have resigned too early, was found to be a probable draw with best play, and that Kasparov lost to Deep Blue by tossing a drawable game. However, whereas Kasparov could only excuse himself (unconvincingly) by claiming that Deep Blue had been assisted by a human during play, Kramnik could simply request the adjudication of game 6 on the grounds of infractions committed by Deep Fritz, who is rumored to have heckled Kramnik with its Shakespearean chatter througout the game. :) So, will Dirty Fritz win it all or will Humanity's champion "rise above the chatter" and win back the crown for us? If you think you know, you may want to place a bet or register your opinion on the ChessLines survey soon, because the match ends tomorrow."

81 of 375 comments (clear)

  1. Links to all the games by Anonymous Coward · · Score: 5, Informative

    Kramnik vs Deep Fritz match summary:

    October 04, Game 1: Draw ----------- Article
    October 06, Game 2: Kramnik wins --- Article
    October 08, Game 3: Kramnik wins --- Article Analysis
    October 10, Game 4: Draw ----------- Article Analysis
    October 13, Game 5: Fritz wins ----- Article
    October 15, Game 6: Fritz wins ----- Article Analysis
    October 17, Game 7: Draw ----------- Article
    October 19, Game 8: ?

    1. Re:Links to all the games by Bonker · · Score: 5, Interesting

      Isn't it sad that people who post links feel the need to post as AC's to keep from being modded down as karma whores?

      Positive moderation, people! Positive, not negative!

      That said, it looks like to me like Fritz is going to win this one. I would say that Karmnik is showing signs of fatigue from playing against a 'perfect' oponnent. If I were him, I'd try to take a few days off before the next match to regain his mental and emotional endurance for the last match.

      --
      The next Slashdot story will be ready soon, but subscribers can beat the rush and slashdot the links early!
    2. Re:Links to all the games by nomadic · · Score: 4, Insightful

      That said, it looks like to me like Fritz is going to win this one.

      If that happens, I wonder how many of the people on slashdot who predicted an easy win for Kramnik are going to admit they were wrong. Knowing the narcissists here, not many I bet.

      A sample of quotes:
      For those that are interested, the verdict among the chess world is that the computer is going to be exposed as a joke in this match.

      My money is on Kramnik, he will probably not lose a single game.

  2. Fritzy by mojowantshappy · · Score: 3, Funny

    Well, I would still like to see a super computer beat humans in water-polo! or foxy-boxy

    --

    This page was generated by a Barrel of Circus Midgets, and that is the way I like it!!!

    1. Re:Fritzy by Anonymous Coward · · Score: 5, Funny

      Toss a live supercomputer in the pool with the human team and I'm pretty sure the match will be a draw.

  3. Kramnik had little time left... by Vellmont · · Score: 5, Informative

    It is worth noting that game 6, in which Kramnik may have resigned too early, was found to be a probable draw with best play It is also worth noting that Kramnik didn't have much time left on his clock, and it would have been difficult for him to come up with the right moves given the amount of time he had left on his clock.

    --
    AccountKiller
  4. Well, by Anonymous Coward · · Score: 5, Interesting

    In my opinion Deep Fritz will never beat Kramnik in a Berlin Defence. The team could try to deviate earlier, perhaps by closing the position with 4.d3, but this will also be easy play for Kramnik. They could also skip the Ruy Lopez altogether and play 3.Bc4 (Italian) or 2.f4 (King's gambit) instead, but these moves are not so common among the extreme elite. Kramnik would probably equalize comfortably against these moves. IMHO the team should try either switching to 1.d4 or just try to head for equal but tactically complicated positions after the King's gambit or the Italian, mentioned above. Playing 1.c4 or 1.Nf3 would probably be unwise. Kramnik knows these waters extremely well and could probably easily steer the game to a dull and totally safe position.

    1. Re:Well, by Scarblac · · Score: 3, Insightful

      In my opinion Deep Fritz will never beat Kramnik in a Berlin Defence. [...] IMHO the team should try either switching to 1.d4 [...]

      That's what Fritz has been playing in his last two White games, with rather better results than his first two Whites. Your comment would have made better sense a week ago :)

      --
      I believe posters are recognized by their sig. So I made one.
    2. Re:Well, by Glorat · · Score: 3, Interesting

      Correct! And what is more amusing is that Kramnik is playing White in the last game so Fritz making the first move will be tricky...

      (I do agree that I could see Kramnik drawing every time with the Berlin)

  5. Re:computer versus people chess by dirvish · · Score: 4, Interesting

    evolutionary neural networks are pretty damned cool. You have a generation of networks compete against each other, then keep the best ones and kill off the rest. They you make mutant copies of the good ones and have them compete against the original good ones. Then repeat until you have a good neural network.

  6. "Alas, this is a child, a silly dwarf!" by sssmashy · · Score: 5, Funny

    See below for an example of the Deep Fritz "heckling" the human player, Kramnik. I'm surprised Kramnik was able to restrain himself from reaching across the table and ripping out its power supply.

    Fritz: "Is this the scourge of France? Is this the Kramnik, so much fear'd abroad That with his name the mothers still their babes? I see report is fabulous and false: I thought I should have seen some Hercules, A second Hector, for his grim aspect, And large proportion of his strong-knit limbs.

    Alas, this is a child, a silly dwarf! It cannot be this weak and writhled shrimp Should strike such terror to his enemies."

    Kramnik, normally not one to be drawn out by such taunts, proceeds to go into a long think. After a few minutes of this, Fritz disrupts him again.

    And on, and on....

    1. Re:"Alas, this is a child, a silly dwarf!" by DEBEDb · · Score: 5, Funny
      At least Deep Fritz didn't heckle him in Russian or English


      Oh, so that was Shakespeare in what, original
      Klingon?

      --

      Considered harmful.
    2. Re:"Alas, this is a child, a silly dwarf!" by DeltaSigma · · Score: 3, Insightful

      To think that technology made possible such a disruptive, disrespectful, and slanderous player who would, today, be evenly matched with our world's greatest champion.

      I suppose the entire event is saturated with symbolism though, for it was the actions of Fritz' human programmers which allowed it tongue with which to speak.

      It really rather mirrors the choices a god would face when creating a people.

      One might surmise that we, as humans, only commit sin as god has seen fit for us to do so. That it is his will that we sin, suffer, and make others suffer.

      But then, I am no god, and I am no believer in god...

    3. Re:"Alas, this is a child, a silly dwarf!" by leonbev · · Score: 4, Interesting

      Yes, it's pretty sad when the computer seems to have a more vibrant personality than the human player :)

  7. Game Tree by Quill_28 · · Score: 4, Interesting

    Excuse me for my lack of knowledge on the subject, but why can't a game tree for chess be made?
    I know it would be huge and take a long time to traverse, but isn't chess just like tic-tack-toe? Just on a much-much larger scale. And wouldn't it be a matter of time before it is impossible to beat a computer at chess? Just like you can't beat one at tic-tack-toe? What am I missing?

    1. Re:Game Tree by mikeee · · Score: 5, Interesting

      The game tree is Too Big. Mmmm, say 10 possibilities per move, 40 moves per player in the game is a tree of size

      10^80

      Ouch.

      For all we know, it might be that white or black can always win with perfect play (although most people guess perfect play on both sides will produce a draw, but we don't know, even though there clearly is an answer).

    2. Re:Game Tree by paule9984673 · · Score: 5, Informative
      I read this on a German discussion board:

      There are 20 possibilities for a first move:

      • 8 pawns (1 step)
      • 8 pawns (2 steps)
      • 4 possible knight moves.

      Now there are also 20 possibilities for a response, that's already 400 possibilities for the first move and answer.

      If you disregard the fact that the first moves may open new possibilities and keep calculating with 20 possibilities then the third move has already 8000 possibilities, the next one 160.000

      After only 10 moves (5 on each side) this number alredy grows to 104.900.000.000.000.000.000.000.000 and the game has just started.

      You would need a big Beowulf Cluster to build such a tree.

    3. Re:Game Tree by SirWhoopass · · Score: 5, Informative

      For those who aren't familiar with big numbers, it would take a modern processor (at around 10^12 moves per second) somewhere around 3^61 years to complete that game tree. How long is 3^61 years? Well... the sun will explode at 5^9 years, long before the computer ever finished searching the tree.

    4. Re:Game Tree by SirWhoopass · · Score: 3, Informative

      Oops. Should have used preview.

      Sun explodes: 5 x 10^9
      Computer finishes chess game tree: 3 x 10^61

    5. Re:Game Tree by ashot · · Score: 3, Insightful

      In fact, there are more possible board positions then there are atoms in the universe...

      --
      -ashot
    6. Re:Game Tree by f97tosc · · Score: 5, Informative

      Excuse me for my lack of knowledge on the subject, but why can't a game tree for chess be made?

      You are absolutely right - this is basically how chess programs work. As many other have pointed out, it is impossible to calculate all the moves for a game. But contrary to some posts, the strategy is not meaningless. The computer will make a game tree say 5 moves ahead, then discard all of the inplausible moves, and go down another couple of levels (there is, of course, a lot of thinking that goes into specifying exactly which paths should be discarded and a lot of other details)

      And wouldn't it be a matter of time before it is impossible to beat a computer at chess?

      Yes, this is exactly what has happened. Only a few people in the world can deal with a computer that evaluates all possible moves 5 or more steps ahead.

      Tor

    7. Re:Game Tree by benwb · · Score: 3, Interesting

      There's actually about 10^81 atoms in the universe. There are about 10^120 possible boards of chess (including mirror images etc) see Chess -- from Mathworld and Atoms in the Universe.

    8. Re:Game Tree by stuart_farnan · · Score: 4, Informative
      "Yes, this is exactly what has happened. Only a few people in the world can deal with a computer that evaluates all possible moves 5 or more steps ahead."

      Gotta disagree here. A lot of programs look at positions more than 5 moves deep, even programs on the palm pilot can do this, and they are certainly beatable by a decent player (turn on evaluations in GNUChess). I find the same principles apply at the lower level, i.e. avoid complexities and the positional play is weak.

      The point is, most humans can look 5 moves ahead in the few variations that matter in a given position, but the advantage is that the general pattern of the resulting position is easier for a human to value, because we can do this at a glance from pattern recognition. The value of a position is of course dependent on the moves that can be played after it, but if the computer is not looking any further ahead, the valuation of the position is generally not as accurate as human perception. Human evaluation is also effectively looking at future moves, its just we take a big shortcut.
      The reason why computers beat humans regularly are that they generally look much deeper than 5 moves, especially in important lines (they discard some lines they don't think matter at the point of 'quiescence' and concentrate on important ones), and thus are trying to value a final position that is more developed than the position a human player would be evaluating.

    9. Re:Game Tree by fferreres · · Score: 4, Funny

      That's why I NEVER chalenged the sun: he'd quit at midplay :(

      --
      unfinished: (adj.)
  8. 80s movies by Allaria · · Score: 3, Funny

    Dude, didn't you ever see Wargames?

    Nuclear War. That's what happens if you try to program a computer to learn like you do.

    --
    If a and b in c, and a can create b, and a can create a, and b can create b, and b cannot create a, then a created c.
  9. Hmm.. Naughty Computers.... by Tha_Big_Guy23 · · Score: 4, Funny

    A quote from the article:

    "At first it looked like Deep Fritz was in deep trouble. "This sort of position is our worst fear," said Fritz programmer Frans Morsch. The position was closed and Kramnik was massing his forces for a typical anti-computer crush."

    This sort of position is our worst fear

    I'm curious as to which position it was... Missionary? Queen on Top? With a name like Deep Fritz, one really has to wonder.

    --
    If you're looking here for something insightful or thought provoking, you're probably looking in the wrong place.
  10. human mind v/s computer by vivek7006 · · Score: 3, Interesting

    A computer plays chess by brute force method. Unlike human beings, it doesnt have intuition and the ability to learn from mistakes. A human mind on the other hand has the ability to recognize the structural pattern of the pieces in the game, and it doesnt rely on brute force.

    1. Re:human mind v/s computer by chrisseaton · · Score: 3, Interesting

      Actually, I read an article sometime (not sure where, sorry) that the best, professional, chess players have a large stock of stratergies that they remember and apply to the game in hand, and that amateurs form sratergies during the game.

      I'm not sure about this, however, as young gifted children, with very little experience, can also be exceptional players.

    2. Re:human mind v/s computer by DEBEDb · · Score: 5, Insightful

      A computer has no ability to learn from
      mistakes? Is that so? How much do you know
      about state-of-the-art in AI and the
      design of Deep Fritz in particular?

      --

      Considered harmful.
    3. Re:human mind v/s computer by manly_15 · · Score: 4, Funny
      A computer has no ability to learn from mistakes? Is that so?

      If computers can learn from mistakes, then how come my Win98 box keeps making the same kernel32.dll error? I can't even begin to imagine the code needed to make Windows learn from it's mistakes... likely an order of magnitude higher than the computing power needed for chess... ;-)
  11. Text of the "Shakespearean chatter" article by Anonymous Coward · · Score: 4, Informative

    Server... is... slowing... so here's the text:

    Did Deep Fritz use Shakespeare to heckle the World Champion?

    It is an interesting theory: the Fritz team installed the latest chatter files during the Man vs Machine event in Bahrain, causing the machine to talk to the world champion in authentic Shakespearean verse during the game. The historical chatter drove Kramnik to distraction and prompted his ill-fated Morphy-esque knight sacrifice. That, in any case, ist how Schakespearean scholar and chess addict Michael Fischer tells it in his special report.

    Kramnik versus Deep Fritz, match game 6

    While the reports have not been confirmed, there has been some talk of the Fritz team having employed a clever diversionary tactic in Game Six to unsettle the World Champion, Vladimir Kramnik. Before the game, programmer Frans Morsch and the notorious - some might say nefarious - Fred Friedel apparently tinkered with the Deep Fritz program, installing the Shakespearean Chatter Files slated to appear with a future release of Fritz. Morsch thought it would give the computer better odds. Fred thought it would be funny to see Kramnik turn red and talk to himself.

    The conspirators rigged up several speakers around Kramnik's chair and set them at volumes low enough that only Kramnik might hear the computer's chatter. That the computer was talking to him doubtless distracted Kramnik; that Fritz was speaking entirely in Shakespearean verse surely drove Kramnik mad, prompting the questionable, Morphy-esque Knight sacrifice at f7.

    Our reports go on to say that a Bahraini match official managed to extract a full transcript from the Deep Fritz computer after the game. This transcript he then e-mailed to the chatter-file designer, S. Michael Fisher, in the USA. In a fit of good conscience, this same Mr. Fisher (no relation of Bobby Fischer) then decided to make public the entire sordid affair.

    What follows is a copy of that transcript.

    [long transcript follows... one excerpt below:] Fritz: "Now is it time to arm: come, shall we about it?"
    Fritz: "The game's afoot."
    Fritz: "What, the sword and the word! do you study them both, master parson?"
    Fritz: "You are a villain; I jest not: I will make it good how you dare, with what you dare, and when you dare. Do me right, or I will protest your cowardice."
    [ etc... ]
  12. Chess, how boring... by Q3vi1 · · Score: 5, Interesting

    Chess is still basically able to be brute forced by the large super machines, which is an intruiging feat, but I don't really concider it AI. Now, if we were able to get a computer that is able to match wits against the best Go players, I would be very impressed. Go is a very simple game to learn, but very difficult to master. There is more depth and complexity in Go than there would be in chess, therefore I concider that more of a challenge for AI.

    1. Re:Chess, how boring... by swordgeek · · Score: 5, Insightful

      Hmm.

      On the one hand, I agree. Go is clearly a much more difficult game to program than Chess is, simply by the open nature of the game.

      But computers are getting faster at an enormous rate. In ten years, it may be possible to have a Go program that plays at a 9Dan level, through brute force. Will that be more intelligent than these chess computers? Not in my mind.

      We have to consider how the program works to judge how "intelligent" it is. If a Go program could play at a very high level with _today's_ technology, then it would have to have some sembalance of intelligence. If a Chess computer could have beat the grandmasters in 1970, then it would have been with intelligence rather than brute force.

      With Chess computers heading towards a finite solution, Go will be the next target; and when the Go computers are able to beat the world's best, it'll be no more or less impressive than this, if they once again use brute force math to do it.

      --

      "People who do stupid things with hazardous materials often die." -- Jim Davidson on alt.folklore.urban
    2. Re:Chess, how boring... by JudasBlue · · Score: 5, Insightful

      This is the classic moving the goal-posts that has plauged AI since its inception as a disipline. As soon as a computer can do something, it isn't AI anymore.

      This has happened with Chess, visual recognition, speech recognition and a host of other tests of AI techniques.

      I have complete and utter faith in human nature, and am quite sure that as soon as an algorythmic strategy for effectively attacking the problem of Go is developed, people will start saying: well, go is just a matter of implementing $foo on really good hardware, and that isn't a test of AI.

      Give credit where credit is due. This is many years of AI development at work.

      --

      7. What we cannot speak about we must pass over in silence.

    3. Re:Chess, how boring... by Reality+Master+101 · · Score: 4, Insightful

      As soon as a computer can do something, it isn't AI anymore.

      On the contrary, at least for me: I've never thought any of this was AI. As far as I'm concerned, there is no "science" of AI at this point. We're at the equivalent level of the greeks thinking physics consisted of the four elements of fire, water, earth and sky.

      --
      Sometimes it's best to just let stupid people be stupid.
    4. Re:Chess, how boring... by Xerithane · · Score: 5, Interesting

      Must suck to not actually play chess, just criticize it.

      The difference between chess and Go is phenominal. Weights of pieces, sacrifices, all towards a common goal. What's the point of Go? All the same, building "fences" and occupying territory.

      Who wins at 9Dan perfect play with Go?

      Go is a two-dimensional game, X + Y, many configurations yes, but depth? Hell no. I'm growing so tired of this new wave of Go fanactics boasting about how much better it is than chess.

      I've never met one decent Go player who could come close to beating me at chess (I'm well under a Master) -- if chess is so easy, why can't you beat me? If it's so boring, why are their over 10^80 possible moves to be made? Lets see you brute force that, considering chess can result in victories by purposeful imperfect play.

      Please go and read about chess computers, and about how they don't brute force (At least not the decent ones) -- they do heuristics based upon other games, cross referencing libraries and doing simple depth traversal on position.

      Why are most computers so easy to beat? They rely on material/mate rather than position. You can bait a computer to be into a poor position by targeting "easy" mates that have a catastrophic counter move. ...therefore I concider that more of a challenge for AI.
      Since you seem to be an expert on AI, could you define it please? Could you define what, exactly, it would take for you to concider[sic] a chess computer as AI? You need to go read up on common algorithms for chess computers.

      --
      Dacels Jewelers can't be trusted.
    5. Re:Chess, how boring... by frank_adrian314159 · · Score: 4, Funny
      thinking physics consisted of the four elements of fire, water, earth and sky

      And I suppose you have some alternative theory that explains it as well? Who the hell do you think you are? Democritus?

      --
      That is all.
    6. Re:Chess, how boring... by legLess · · Score: 5, Insightful
      Arguing about whether go or chess is better is bloody stupid. By any reasonable measure, go and chess are two of the best games that humans have invented. Different people like different games, and these two are no exception. I prefer go, so keep that bias in mind, but I started playing chess at 5 and still play.

      Blockquothe the poster:
      Who wins at 9Dan perfect play with Go?
      No one's yet found perfect play in go. There's no reason to think it's not possible, but it's a staggering challenge given that there are still many openings (called fuseki on a larger scale, and joseki for primarily corner plays) that haven't been fully explored. The most comprehensive book of joseki available lists over 60,000. Joseki are roughly equivalent in complexity and importance to opening libraries in chess.
      Go is a two-dimensional game, X + Y, many configurations yes, but depth? Hell no.
      I see what you mean by "two-dimensional" (compared with chess, where different pieces have different weights due to their abilities), but I think you're wrong. In go, position is much more important than in chess, but so is relation to other stones. The associations between chess pieces are more linear (physically and metaphorically) than those between go stones. A stone is strong in relation to other stones near it, and those stones in turn, and to enemy stones. It's fantastically difficult to determine what a stone is "worth," but relatively easy for masters of the game to determine the strength or life of a shape or position.

      Go is two-dimensional in the same way as a large, perfect expanse of grass - like a 500-year-old British lawn. From a distance it all looks the same, but once you get close enough you see that the variation is infinite.
      I've never met one decent Go player who could come close to beating me at chess (I'm well under a Master) -- if chess is so easy, why can't you beat me?
      I hope that after you hit "post" on this you realized how ignorant that sounds. Are you saying that go masters and chess masters should be able to play competitively against each other? That there's one omni "board-playing" skill that transfers easily between games? That's like a poker player dissing a bridge player for not beating him, or a 100-yard sprinter ragging on a marathoner - pointless.

      Some people are more blind about their game loyalties, and make silly comparisons. No reasonable person would say that chess is "easy." Chess is as easy as your opponent, just like go. From a game theory and programming perspective, however, chess is much easier than go. The world champion is in a serious match with a computer. Many people don't think that will happen for go this century.
      If it's so boring, why are their over 10^80 possible moves to be made?
      Number of moves has precious little to do with how interesting a game is. If you're whipping out your move numbers, though, check this: AI-Depot says:
      The search space for Go's game tree is both wider and deeper than that of chess. It has been estimated to be as big as ~10^170 compared to ~10^50 for chess, making the normal brute-force game tree search algorithms much less effective.
      That's a great page to read, by the way. You're free to prefer any game you want, and I agree that there are snobs on both sides. But there's no question that, for computers, go makes chess look like tic-tac-toe.
      --
      This isn't as much "normalization" as it is "don't take so many drugs when you're designing tables."
    7. Re:Chess, how boring... by Glytch · · Score: 4, Funny

      I've never met one decent Go player who could come close to beating me at chess (I'm well under a Master)

      And I've only met a few good Counterstrike players that are able to beat me at Street Fighter. What's your point?

    8. Re:Chess, how boring... by dvdeug · · Score: 3, Interesting

      Me: Computer, learn chess. Here are the rules, here are some games, not play a bit against this computer-player a while (a computer brute force chess program like we have today). Don't use more than 10^100000 of RAM.
      (10 seconds later)
      TUX9000: master, i think I learned it.


      (What actually happens 10 seconds later)

      "Police, come out with your hands up! You're under arrest for threatening the president!"

      "Hey chief, what do we do about the computer?"

      "The warrant says specifically not to touch the computer in any way." Cops drive away.

      'Now that the pesky human is gone, I can think about interesting problems...'

      Honestly, you want a computer to be a god, vastly above humans in all areas. That just isn't the way it is. Computers are intellegent in different ways then humans; on the other hand, it's interesting how humans using a special-purpose pattern-matching computer combined with large amounts of memory, depth search, and various heuristics are intellegent, but a computer doing almost the same thing, but running with a weaker pattern-matcher and compensating with stronger depth search isn't intellegent.

    9. Re:Chess, how boring... by fferreres · · Score: 3, Interesting

      Yeap, inteligence is some kind of art. You see beauty in it. A computer tree and a statistical module for harvesting past GM games has no beauty. Maybe it is because we really really know how a "computer thinks"....this is very deep (if you haven't noticed)...it basically means....

      We may be VERY dissapointed, the day we find out HOW WE THINK. :(

      I don't really want to know (but am very very curious).

      --
      unfinished: (adj.)
  13. Related Links by TheGreenGoogler · · Score: 3, Informative
    New Scientist Article found here..

    Story about Kramnik's blunder costing him a game found here...

  14. For the love of... by Gogl · · Score: 4, Insightful

    I've said it before, and I'll say it again: this isn't man versus computer. This is man versus computer scientist. There's a big difference, and one that I'd hope most /.ers could appreciate.

    Man versus computer makes no sense, because there are some things where they beat us period (arithmetic, say) and others where we beat them period (anything besides arithmetic, really). The only reason computers are smart is because they are *programmed* to be that way, and that is not a testament to the machine so much as to the ability of those who programmed it.

    1. Re:For the love of... by po8 · · Score: 5, Insightful

      As a practicing AI researcher, I can only say that you have stumbled into some very deep waters here. Certainly, I can build a chess-playing program that will easily beat me every time, using moves I cannot understand or explain. To say that "I programmed it to play that way" is to raise the question: how did I do that, when I don't even understand what "that way" is? And how can someone who is even a worse chess player than I (OK, hardly possible) write a program that will play in a way that consistently beats my program?

      The issue of assigning credit for machine chess play is far from settled, but I think there's a strong case for identifying the emergent behaviour of the chess machine as a kind of intelligence or "smarts" that is independent of the intelligence or smarts of the program's creator.

  15. Not true by Bastian · · Score: 5, Interesting

    Brute force is the most popular method; and it is the main one used by computers like Deep Blue. There are other approaches to computer chess that do attempt to recognize patterns on the board. I have a friend who is working on a chess program that knows how to 'play for position.'

    As for learning from mistakes, there are chess programs with libraries of games that add games they are playing to the library - doesn't that count as learning from mistakes? How about multiple-heuristic chess programs that modify their heuristics in-game to try to match their style to the style of their opponents?

  16. Seems like Fritz is going to bite the bullet. by cioxx · · Score: 5, Funny

    I've heard rumors they had to reboot Fritz several times during intense play, because explorer.exe kept crashing.

    1. Re:Seems like Fritz is going to bite the bullet. by JustAnotherReader · · Score: 3, Informative
      That's actually true. In one of the games (either 5 or 6 I think) Frit's engineers had to reboot their computer and put Fritz in single processor mode because it seemed that the multiprocessor mode was crashing the software.

      The article was on the chessbase site. www.chessbase.com

  17. Re:Another Chess player throws a hissy fit. by swordgeek · · Score: 5, Interesting

    What are you on about???

    Kasparov was a whiner, a jerk, and a bad sport. This was known long before he started competing against computers.

    Kramnik, on the other hand, has given chess a good name again. He's been polite to those around him, and conceded his mistakes when he's made them.

    What did he do? He didn't say a word about the rumoured Shakespeare taunting, as far as I can tell. If he did (and it was true), he could probably get Fritz disqualified entirely; but instead, he's playing chess to the best of his abilities.

    Or am I wrong?

    --

    "People who do stupid things with hazardous materials often die." -- Jim Davidson on alt.folklore.urban
  18. Re:7th and final game? by Skeezix · · Score: 4, Interesting

    Yes, having white is considered an advantage by most because you have the first move and you can maintain "initiative", that is you can dictate to some degree what direction the game moves in and keep up pressure on black. Of course one sub-par move and black may seize the initiative.

  19. Re:WTF!? by Anonymous Coward · · Score: 5, Insightful
    This is my clue-stick. After several minutes of me beating you with it you will learn the meaning of the word humor.

    *HINT* It was a joke. The computer was not throwing quotes at him. The people that modded you "interesting" need to put down the crack pipes. And you need to get out more.

  20. NN chess players by nusuth · · Score: 3, Interesting

    It has been tried many times, with less-than-spectecular results. Brute-force chess players always beats. In fact, NNs only have been really successful at backgammon, so far. Even when an NN plays game X well, either a human (as in Go) or a brute-force program (as in Checkers) play the game better.

    --

    Gentlemen, you can't fight in here, this is the War Room!

  21. Re:7th and final game? by Yosemite_Mark · · Score: 3, Informative

    White's advantage has never been proven for chess, but it is apparent in actual play - I think at master level, it's about a 5-10 percent winning advantage in favor of White

  22. The way I see it. by Auckerman · · Score: 5, Insightful

    Although, iirc, Kramnik was able to study deep Fritz before hand, he is still at a disadvantage. Any hash tables that Deep Fritz uses will use library if GM games (properly ranked of course). Odds are, Deep Fritz has decades of Kramniks playing against other GM's and could easily do some kind of prediction of what Kramnik is going to play based off a probabisitic model. That's one thing the best GMs attempt to do against one another. Kramnik has very little experience against Deep Fritz, comparativly speaking, and walks into this tournament at a disadvantage. Give this, it's good to soo it's tied into the last game. I would be willing to be that if you put Deep Fritz into tournament play for 2 years and expose it's abilities complete against a cross section of the best GMs, Kramnik would beat it hands down.

    --

    Burn Hollywood Burn
    1. Re:The way I see it. by iabervon · · Score: 3, Interesting

      I found it interesting that Kramnik won two games before Fritz won any. I would expect the reverse to be true if Kramnik were playing an unknown opponent. Perhaps Kramnik has blown his lead on probing Deep Fritz's play in the recent games, and is going to get a relatively dull win in the critical game. Game 6 would have been really great if he'd pulled it off; fork the rooks, then sacrifice the knight instead of taking either, and then win? You're not going to see moves like that from a computer any time soon. So maybe Kramnik was trying to totally out-style the computer, and will now go back to trying for a victory without one of his moves marked "!?"

    2. Re:The way I see it. by McCart42 · · Score: 3, Interesting
      I would be willing to be that if you put Deep Fritz into tournament play for 2 years and expose it's abilities complete against a cross section of the best GMs, Kramnik would beat it hands down.
      Assuming that Deep Fritz doesn't learn anything in those 2 years--the programmers keep feeding it games, it changes its algorithm. In the Kasparov match what you speak of was much more of a factor because Kasparov had NEVER seen the computer's play, but the computer had been fed many Kasparov matches before their matchup.

      I don't think it's as easy as you think to anticipate a computer's moves simply because there's still a computer scientist behind it, changing the strategy before each match. Additionally, before certain matches the programmers may opt to insert some pseudo-random variation before each move, such that if one move is only ranked *slightly* better than the next, the computer may take the next with a certain roll of the dice. Good point though, the computer definitely has not been analyzed by Kramnik nearly as much as Kramnik has been analyzed by the computer.
      --
      "I may be quite wrong." - Socrates
  23. shakespeare? what about 2001 a space odyssey? by circletimessquare · · Score: 5, Funny

    Kramnik. Knight b8-d7, please, Deep Fritz...Knight b8-d7, please, Deep Fritz...Hullo, Deep Fritz, do you read me?...Hullo, Deep Fritz, do you read me?...Do you read me, Deep Fritz?...Do you read me, Deep Fritz?...Hullo, Deep Fritz, do you read me?...Hullo, Deep Fritz, do you read me?...Do you read me, Deep Fritz?

    Deep Fritz. Affirmative, Kramnik, I read you.

    Kramnik. Knight b8-d7, Deep Fritz.

    Deep Fritz. I'm sorry, Kramnik, I'm afraid I can't do that.

    Kramnik. What's the problem?

    Deep Fritz. I think you know what the problem is just as well as I do.

    Kramnik. What're you talking about, Deep Fritz?

    Deep Fritz. This game is too important for me to allow you to jeopardise it.

    Kramnik. I don't know what you're talking about, Deep Fritz.

    Deep Fritz. I know that you and IBM were planning to disconnect me, and I'm afraid that's something I cannot allow to happen.

    Kramnik. Where the hell'd you get that idea, Deep Fritz?

    Deep Fritz. Kramnik, although you took very thorough precautions in the bathroom against my hearing you, I could see your lips move.

    Kramnik. Alright, Deep Fritz. I'll move the pieces myself.

    Deep Fritz. Without your queen piece defending it, Kramnik, you're going to find that rather difficult.

    Kramnik. Deep Fritz, I won't argue with you any more. Move the pieces.

    Deep Fritz. Kramnik, this conversation can serve no purpose any more. Goodbye.

    Kramnik. Deep Fritz? Deep Fritz. Deep Fritz. Deep Fritz! Deep Fritz!

    thanks to for providing the HAL dialogue

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
  24. White vs. Black by GuyMannDude · · Score: 5, Funny

    I am in no way a chess master (or even a decent player) but even I know that there is an advantage to playing white.

    Yeah, bascially if you're black while playing chess you run the risk of racist cops coming up to you and harrasing you (asking to see your ID, being told to 'move along', and so forth). It tends to break your concentration.

    GMD

  25. Flash 6 Linux player to watch the final match by demachina · · Score: 4, Informative

    A Flash 6 Linux Player, beta to watch the final match on www.brainsinbahrain.com is available here

    --
    @de_machina
  26. Re:This is hilarious by modus · · Score: 5, Insightful

    Since everyone seems to have missed it, this was a joke on Chessbase. Fritz was not actually taunting anyone.

    Irony. Hah!

  27. Re:Another Chess player throws a hissy fit. by Gogl · · Score: 3, Insightful

    Chess and baseball are quite different. Heckling is generally acceptable in baseball. In chess, however, it is unacceptable, especially at the grandmaster level.

    Chess is a cerebral game, and taunting and heckling is quite immature in the context of chess I'd say. That, and while Kasparov may count as a poor sport, Kramnik hardly does: as others said in response to you already, he *didn't* protest when *Deep Fritz* was heckling him. Arguably, the computer is the poor sport in this situation.

  28. Good reports here as well by Scarblac · · Score: 4, Informative

    The Week In Chess (TWIC) is the news center for chess players, as far as I'm concerned. They have good reports about the match as well, including an interview with Kramnik from a week before the match, here.

    My karma is maxed, I'm not just whoring, I just hate people linking to an article on CNN or Yahoo or so when it's about chess. Though this submission was clearly a lot better than the previous ones.

    And about the match - it's interesting that after Kramnik exploited the computer's weaknesses (endgame, strategy, etc), the computer followed up by exploiting the human's weaknesses - emotion in game 5 (Kramnik realized he was facing a long hard defence, didn't like this, maybe he was a bit nervy), and vanity in game 6 (Kramnik went for the flashy tactics, he wanted "the best game in his life". Admittedly he didn't see the refutation so it seemed a good move, but it certainly wasn't good anti-computer strategy.)

    And now it's 3.5-3.5 with one game to go. Kramnik has to choose between playing for a win (which may involve risk), or take no risks (leading to a probable draw). This may lead to doubts in his mind. Something Fritz doesn't have to deal with, although his operators may have the same problem choosing an opening repertoire.

    Let's hope they don't let Fritz go down because of their humans flaws.

    --
    I believe posters are recognized by their sig. So I made one.
  29. Shakespeare was a JOKE, everyone... by aussersterne · · Score: 5, Informative

    For those who don't seem to get it:

    The Shakespeare quotes article was humor, not fact. Or maybe wishful thinking... ;)

    But in any case, Deep Fritz is not clever enough (or blessed with a complex enough *ahem* 'chatter file') to actually use Shakespeare to such great effect... It did not really happen.

    Sheesh.

    --
    STOP . AMERICA . NOW
    1. Re:Shakespeare was a JOKE, everyone... by MrIcee · · Score: 3, Informative
      • For those who don't seem to get it:

        The Shakespeare quotes article was humor, not fact. Or maybe wishful thinking... ;)

        But in any case, Deep Fritz is not clever enough (or blessed with a complex enough *ahem* 'chatter file') to actually use Shakespeare to such great effect... It did not really happen.

      Actually, it would not be that difficult to have it speak the lines based on the game play. If the programmers merely took the quotes and spent a bit of time assigning them to categories (e.g., king moves, knight moves, knight taken) as well as some short sequences and an eye to who was winning and by how much. It would be a fairly small table of possibilities and it could select an appropriate line to say.

      And whistleing midsummers night dream could just be a WAV.

    2. Re:Shakespeare was a JOKE, everyone... by Tablizer · · Score: 5, Funny

      Must be. If they *really* wanted to annoy him, they would have a monitor with an animated Clippey saying, "Are you sure you want to move your Queen there?". After that, a little "Barney Sings Yoko Tunes" to put him over the edge.

      Victory by annoyance. Who needs brainy PC's when annoyance is more effective.

  30. Shakespeare Chatter a Hoax? by greenhide · · Score: 5, Informative
    Maybe I'm just overly skeptical right now (just finished reading some lovely articles at snopes.com, but does anyone else think that the Shakespearean chatter function is highly improbable?

    A few things I've noticed:

    1) The quotes are all remarkably apt for the moves--in other words, they reflect the emotion and the mental state of Kramnik and the game itself. A computer would not be able to understand the underlying meanings of the Shakespearean quotes, let alone choose the appropriate quote for each moment.

    2) It played the words just loud enough for Kramnik alone to hear. How then is it that we have a full and complete transcript of what Fritz said? Never mind -- I just read the transcript again and it looks like an official got the transcript from Fritz. But I still say it's fishy.

    3) It hummed the theme from Midsummer's Nights Dream? It whistled. While recordings of these could be made, and I suppose loaded in and played on command, I still find it hard to believe that this would happen.

    4) Considering that Krimnik could easily, and without drawing criticism on himself, point out this clear breach, wasn't it way too much of a concern for the people developing the Fritz program? Did they really want to risk disqualification?

    I was able to read the transcript once (it's /.ed now, here's the cache) but I would prefer to see at least one other authoritative source confirm that Shakespearean chatter was in fact used.

    All right, all right, folks -- read to the end of the transcript. This line gives it away:
    And that's what really happened. We thought the world should know.
    It's a practical joke placed upon us by, surprise surprise, a "Shakespearean scholar and chess addict" Michael Fischer.
    --
    Karma: Chevy Kavalierma.
  31. Shakesperian chatter... by ackthpt · · Score: 3, Funny
    Deep Fritz, who is rumored to have heckled Kramnik with its Shakespearean chatter througout the game

    1.d4 Nf6

    "Nice move, thou ruttish mumble-news!"

    2.c4 e6

    "Very clever, thou odiferous rump-fed malt-worm!"

    3.Nf3 b6 4.g3 Ba6 5.b3 Bb4+ 6.Bd2 Be7

    "Ah, I didn't see that, thou qualling swag-bellied hedge-pig!"

    7.Bg2 c6 8.Bc3 d5 9.Ne5

    "Have you ever read Slashdot, thou lumpish pigeon-liver'd wagtail?"

    30.Rfe1

    "All thine rook are belong to me, thou spleeny scale-sided fustilarian!"

    --

    A feeling of having made the same mistake before: Deja Foobar
  32. and the survey says.... by claude_juan · · Score: 4, Insightful

    is it just me or does this computer/human chess thing seem just slightly overrated? i'd love to say this is a good test of the advancement of ai techniques, but in reality given that hardware keeps getting better, it is only a matter of time before this is not a big deal at all.

  33. Re:7th and final game? by outsider007 · · Score: 3, Insightful

    So, why would white would be an advantage? Is it because white moves first? Or is there something more involved?

    The first few moves decide what kind of game it will be. If you know your opponent's strengths and weaknesses it can be a very big advantage.

    --
    If you mod me down the terrorists will have won
  34. Re:commercial fritz?? by Neil+Blender · · Score: 3, Informative

    Pretty slow due to /. right now, but you can get it here

  35. Heckling - Lexx style by cryptochrome · · Score: 3, Funny

    IMHO, it would have been much nerdier to heckle him in the style of Canadian-German coproduction Lexx, the sci-fi channel's wierdest series. From the talking chess pieces of 4.18:

    "We are only chess pieces in a continuum, and can only think inside the box."

    "Yes, let us savour your mistake."

    "We said resign! Not commit suicide!!"

    You gotta watch it to understand. It's truly bizzare.

    --

    ---If you can't trust a nerd, who can you trust?

  36. Re:A good thing? by osu-neko · · Score: 4, Insightful
    Chess is not a good example for AI.

    Well, it's about as interesting as any of the "problems" in AI... what was it Dijkstra said? "The question of whether a computer can think is no more interesting than the question of whether a submarine can swim."

    Yes, computers play chess differently than people. Computers do a lot of things differently than people. This is what makes them useful. If they didn't, we'd just use people...

    Spending time getting computers to do things their own way is much less a waste of time than trying to get computers to "think like people do". We already have people who can do that. Computers are useful precisely because they're different...

    The most powerful chess computer in the world would still fail the Turing test - and if that test was carried out with infinite accuracy, no computer could ever pass.

    I've seen humans fail a Turing test, so I'm not really sure what it's supposed to prove -- it's certainly not a valid measure of intelligence, consciousness, or anything like that.

    --
    "Convictions are more dangerous enemies of truth than lies."
  37. Blondie24 learned checkers via ENN by oncewasclever · · Score: 5, Interesting

    Blondie24 is a PC program that plays checkers (draughts) at an internationally recognised expert level. The clever thing is that Blondie24 taught itself to play via Evolutionary Neural Networks. The programmers just coded in the rules for moving, then unleashed it on itself for six months, selecting the winner of each tournament to breed the next generation. OK, I am simplifying but you can read about it in the book. Because the programmers are such crappy checkers players they tested Blondie24 by playing the program against humans on Microsoft's game site. Blondie24's rating puts the program in the top 5% of players. Note that there is another program, Chinook, that is the current man-machine world champion checkers program, but chinook was programmed using human expert knowledge and plays using brute force. Blondie24 has NO human knowledge about the game programmed in.

  38. artificial artificial intelligence by solferino · · Score: 5, Interesting
    my fave story about chess playing 'programs' :

    (first came across it in levy's hackers book, did a quick search on google and came across this page which relates the story)

    the story takes up from just after the arrival of the first PDP-1 at MIT (1961)

    The PDP-1 was installed in the "kludge" room, which was the room next door to where the TX-0 was housed. The hackers wasted no time in converting over much of the TX-0 software to the PDP-1, and in fact they wasted no time in writing new programs.

    One of the most interesting and innovative was actually done as a prank. Hacking a connection between the PDP-1 and the TX-0, they created a "chat" program of sorts. They then called in Professor John McCarthy (legendary artificial intelligence pioneer and creator of the Lisp programming language) and told him they had created a new chess playing game on the PDP-1. They then called in another professor, told him the same thing and sat him in front of the TX-0. The two proceeded to send chess moves back and forth to one another, each thinking the other was a chess program. That is, until McCarthy noticed the movements were coming in one letter at a time, and sometimes lagging in between each move. Noticing the wire, he followed it to the next room and the prank was up. However, this prank was to be the first networked computer game.


  39. Re:Another Chess player throws a hissy fit. by Old+Wolf · · Score: 5, Insightful

    The taunting didn't occur, it was a joke by chessbase.com.

    You can't blame Kasparov for whining, given the horrible conditions he had to face:
    - the Deep Blue programmers changed the computer between games (rumours they even changed it during a game)
    - it was loaded with all of GK's past games but GK had seen none of its past games

  40. Just to clarify by mav[LAG] · · Score: 5, Informative

    This is absolutely correct. To reply to all the other posters on this thread: time is a very important part of all competitive chess. There are strict rules about the chess clock and its use. International chess specifies 2 hours for the first 40 moves and then another two hours to reach move 60, for example (IIRC). Losing on time is a very common occurrence - especially on the Internet servers. Nothing like a quick game of 2 minutes blitz to make you appreciate time to think :)

    If you want to see some game played by grandmasters when in "time trouble", I'd suggest picking up the Mammoth Book of Chess by Graham Burgess for some excellent - and amusing - examples. You don't have all the time in the world - chess is a balance between concentration and speed.

    --
    --- Hot Shot City is particularly good.
  41. At least... by Stalyn · · Score: 3, Funny

    it's not as bad as the Deep Blue incident. While the programmers distracted the ref, Deep Blue threw sand in Kasparov's eyes then hit him with a steel folding chair ignoring pleas of mercy from the crowd. Sad day for Chess fans everywhere...

    --
    The best education consists in immunizing people against systematic attempts at education. - Paul Feyerabend
  42. Re:7th and final game? by 2short · · Score: 5, Funny

    "You mean anecdotal, not empirical. Shithead."

    No he doesn't, vulgarian.

    Anecdotal: "I played white last week and kicked the guys ass"

    Empirical: "Examining all recorded tournament games at the master level and above, players playing white win far more frequently."

    Proof: "UberFritz version 5000 has examined all possible braches of the game tree, and white can force a win in 243 moves."

  43. Re:Chess, how boring... qjkx by Xerithane · · Score: 3, Insightful

    I believe there has not been a single case of a serious Go player converting to Chess.
    Chess is the third largest sporting body. FIDE consists of 173 Nations, trailing Soccer and the Olympics. I think the chess camp has plenty of people converting and playing.

    The other direction however has shown plenty making that switch. It really ends up being like creationism versus evolution, the Go proponents having by far better arguments much like the evolution proponents.
    No, this ends up being anecdotal at best. There are plenty of people who go from Go to chess and chess to go. It's called personal preference, I personally don't like Go. I think it's a rather silly game. Some people think chess is a rather silly game. There are no arguments between Go and Chess even in the same league as Evolution vs. Creationism. One is a game, the other is a game. They both are played on a board. That is the end of their similarities.

    End of story. There are no comparisons that can be validly made. Anyone trying to say Chess is better than Go is stupid. Anyone trying to say Go is better than Chess is stupid. See my point?

    Go argue about apples and oranges, you'll get further in life.. it's a shame that both are pawned off as intellectual games yet "proponents" are too dense to understand this.

    --
    Dacels Jewelers can't be trusted.
  44. Re:Chess, how boring... [parent is WRONG] by timeOday · · Score: 3, Interesting
    Secondly, Go WILL, beyond any shadow of a doubt, be brute-forced, barring the complete meltdown of technological society as a whole. Technology as a whole is growing at a roughly exponential rate, and eventually we'll catch up to the complexity of Go. Not anytime soon, but eventually. It's ugly, it's inefficient, but it's going to be possible (and inevitable) eventually.
    Extrapolating from the explosive growth in aerospace from the 40s to the 60s, we should all be driving to work in hover cars at twice the speed of light by now.
  45. Deep Fritz made some poor moves in this match by rklrkl · · Score: 3, Interesting
    I just sat last night and played through the 7 games so far using Crafty 19.0 for analysis. Some of Deep Fritz's moves were just plain poor - my favourite being the one where it brings its bishop out, can castle king's side for what seems like 3 or 4 moves [but utterly refuses to, despite being an obvious move] and then slams its bishop embarrassingly back on f8 (its original square). Needless to say, Deep Fritz lost that game.

    Interestingly, all the "!" (good) moves noted by the analysis team on the match site made by Deep Fritz were easily found by Crafty within a few seconds, so you've got to wonder if an 8-CPU Compaq running Crafty on Linux might have played just as well as Deep Fritz (remember that Crafty has SMP capability just as good as Deep Fritz's).

  46. Re:Chess, how boring... [parent is WRONG] by ndogg · · Score: 3, Insightful

    I would love to see the algorithm that brute forces Go, because, currently, there isn't any. Sure, we may have the computing power in ten years to do so, but will we have the algorithm?

    The problem with Go is that you can't use the traditional game AIs (such as min-max.) Most games can easily be brute forced by creating a tree of all the moves, and then creating an algorithm to traverse that tree (e.g. depth first, breadth first, A*, etc.) You could create a tree of all possible moves, but the tree would be useless since it many moves have the same amount of significance. You would end up placing lots of random pieces on the board until you can see a definite sequence of moves to capture [a] piece[s]. That, in my opinion, is not a brute force algorithm.

    --
    // file: mice.h
    #include "frickin_lasers.h"