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Subject: Re: Tiger against Deep Blue Junior: what really happened.

Author: Chris Carson

Date: 05:15:51 07/25/00

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On July 25, 2000 at 00:07:33, Christophe Theron wrote:

>On July 24, 2000 at 16:30:39, blass uri wrote:
>
>>On July 24, 2000 at 15:59:31, Chris Carson wrote:
>>
>>>The SSDF Rating List 1997-02-05
>>>53540 games played by 162 computers
>>>                                           Rating   +- Games   Won  Oppo
>>>                                           ------  --- -----   ---  ----
>>>   1 Rebel 8.0 Pentium 90 MHz                2462   27   736   67%  2336
>>>   2 MChess Pro 6.0 Pentium 90 MHz           2435   27   683   62%  2350
>>>   3 Hiarcs 5.0 Pentium 90 MHz               2427   67   121   60%  2359
>>>   4 Genius 5.0 Pentium 90 MHz               2420   30   558   59%  2352
>>>
>>>
>>>Avg Rating for the top 4 programs = 2436.
>>>
>>>If DB had a 90% (+36 =4 -0) score against these programs,
>>>then the DB rating in comp vs comp games would have been 2824.
>>>It's TPR against Kasparov was 2862 (human vs comp).
>>
>>+36 =4 -0 score is 95% score and not 90% score.
>>
>>I did not read a claim that Deeper blue did +36 =4 -0 against these programs.
>>
>>I remember a claim that Deep blue Junior That is weaker than Deep blue did 38:2
>>score against programs but I do not know exactly the name of the programs and it
>>is better for Hsu not to tell the names of the programs because it is better to
>>say nothing when you have no proof.
>>
>>I know that Deep blue Junior lost 3:0 against Rebel and drew 1.5-1.5 against
>>Rebel-tiger.
>
>
>
>
>You should not give only part of the information. If you quote a match result,
>you should give as much information as possible.
>
>The games took place in the hall near the tournament hall were the 1999 WCCC
>took place, in Paderborn, in June 1999.
>
>There were several PCs connected to Deep Blue Junior thru an Internet
>connection. Deep Blue Junior was in free access and I'm very surprised that I
>have been the only one to try to play with my program against the monster.
>
>I could not bring the 600MHz Kryotech computer I was using for the regular
>tournament. It was only 20 to 30 meters away from the tournament hall, but the
>Kryotech computer is rather heavy, and anyway there was no power supply
>(actually that's what I thought - later I discovered a power supply nearby and
>used it).
>
>So I brought my Pentium 150MHz laptop and decided to try some games. I thought I
>was going to be totally destroyed anyway, so it was just for fun.
>
>Deep Blue Junior was always using 1 second per move.
>
>I set up Chess Tiger 11.9 (Paderborn version) to play the game in 15 minutes.
>Permanent brain was turned OFF. The reason to use this setup is that I wanted to
>see what could happen if Chess Tiger was using a top level hardware of year
>2000. I thought that such hardware would probably be 15 times faster than my
>P150 notebook. And that DBJr was not using permanent brain.
>
>Why did I do that? At that time I had heard rumours that Hsu was going to
>release a PC card with one of the DB chips on it. I wanted to know if it was
>possibly going to make the top PC programs look ridiculous.
>
>Chess Tiger was using 8Mb hash tables.
>
>Here are the two games played on the P150 Notebook:
>
>
>[Event "during the WCCC99"]
>[Site "Paderborn, Germany, via Internet"]
>[Date "1999.06.17"]
>[Round "?"]
>[White "Chess Tiger 11.9"]
>[Black "Deep Blue Junior"]
>[Result "*"]
>
>1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nf6 5. Nf3 e6 6. Nc3 c5 7. d5 exd5
>8. Nxd5 Be7 9. Nxf6+ Bxf6 10. Qxd8+ Bxd8 11. Be3 Be7 12. Bd3 Nc6 13. O-O Nb4
>14. Be4 f5 15. Bb1 Bf6 16. Re1 Kf7 17. Bc1 Re8 18. Rxe8 Kxe8 19. a3 Nc6
>20. Bc2 Na5 21. Be3 Bxb2 22. Re1 Kf7 23. Bxc5 Nxc4 24. Bd3 Nxa3 25. Re2 Bc1
>26. Nd4 b6 27. Bd6 a5 28. Ra2 Be6 29. Nxe6 Kxe6 30. Bxa3 Bxa3 31. Rxa3 Rc8
>32. Kf1 g6 33. Ke2 Rc6 34. Kd2 Rd6 35. Rb3 h6 36. Kc3 *
>(the game was stopped here due to an operator mistake.
>DB Jr does not allow any takeback. But the position looks like a win
>for Chess Tiger, whose score was at that time over +2.00)
>(time control was 1s/move for DB Jr, and 15mn/game for Chess Tiger.
>Chess Tiger ran on a P150 notebook in a W95 Dos box, with 8Mb hash tables)
>
>In this game Tiger was out of book after move 5 (Nf3).
>
>
>
>
>[Event "during the WCCC99"]
>[Site "Paderborn, Germany, via Internet"]
>[Date "1999.06.17"]
>[Round "?"]
>[White "Chess Tiger 11.9"]
>[Black "Deep Blue Junior"]
>[Result "0-1"]
>
>1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Nd5 Nf6 5. Nxb4 Nxb4 6. c3 Nc6 7. d4 exd4
>8. e5 Qe7 9. cxd4 d6 10. Bb5 dxe5 11. Bxc6+ bxc6 12. dxe5 Ba6 13. Qa4 Bb5
>14. Qh4 Qe6 15. h3 O-O 16. Be3 Nd5 17. Bc5 Rfb8 18. Qe4 Nf6 19. Qe3 Nd5
>20. Qe4 Nf6 21. Qc2 Rd8 22. Be3 Bd3 23. Qc3 Ne4 24. Nd4 Nxc3 25. Nxe6 fxe6
>26. bxc3 Rab8 27. Bc1 Bc4 28. a3 Rb3 29. h4 Rxc3 30. Rh3 Rc2 31. Re3 Rd4
>32. g3 c5 33. a4 Bd5 34. a5 c4 35. Ba3 Rdd2 36. Rb1 h5 37. Bc5 Rxf2
>38. Rc3 Rfe2+ 39. Kd1 Rcd2+ 40. Kc1 Ra2 41. Rb8+ Kh7 42. Rb2 Rexb2
>43. Ra3 Rc2+ 44. Kd1 Rd2+ 45. Ke1 Re2+ 46. Kd1 Rad2+ 47. Kc1 Rc2+
>48. Kd1 Red2+ 49. Ke1 Rh2 50. Kd1 Rcd2+ 51. Kc1 Rdg2 52. Bf2 Rxf2
>53. Rd3 cxd3 54. Kd1 Rf1  0-1
>(time control was 1s/move for DB Jr, and 15mn/game for Chess Tiger.
>Chess Tiger ran on a P150 notebook in a W95 Dos box, with 8Mb hash tables)
>
>In this game Tiger was out of book after move 3 (Nc3).
>
>OK, this time Tiger gets its spanking.
>
>
>
>The third game was played the next day, after Ed came with his PII-333MHz
>Notebook (he is obviously richer than me :). I borrowed the PII-333 Notebook and
>played the third game:
>
>
>[Event "during the WCCC99"]
>[Site "Paderborn, Germany, via Internet"]
>[Date "1999.06.18"]
>[Round "?"]
>[White "Chess Tiger 11.9"]
>[Black "Deep Blue Junior"]
>[Result "*"]
>
>1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nf6 5. Nf3 e6 6. Nc3 c5 7. d5 exd5
>8. Nxd5 Nxd5 9. cxd5 Be7 10. Bb5+ Nd7 11. O-O O-O 12. Bf4 Qb6 13. Qd3 a6
>14. Bc4 Qxb2 15. Qe4 Bf6 16. Rab1 Qa3 17. d6 Rb8 18. Bc1 Qa5 19. Bd3 g6
>20. Bh6 Bg7 21. Bxg7 Kxg7 22. Qe7 Qxa2 23. Ne5 Qd5 24. Nxd7 Bxd7 25. Be4 Qe6
>26. Qxe6 fxe6 27. Rxb7 Rxb7 28. Bxb7 Bb5 29. Ra1 Rb8 30. d7 Bxd7
>31. Bxa6 Ra8 32. Rd1 Ba4 33. Rd6 Bb3 34. Rb6 Bd5 35. f3 c4 36. Kf2 c3
>37. Ke3 Ra7 38. Kd3 Rc7 39. Kc2 Kf6 40. Rb4 g5 41. Bd3 h6 42. h4 Rc5
>43. Rg4 Ke7 44. hxg5 hxg5 45. Ra4 Kf6 46. Ra3 Ke5 47. Ra4 Rc7 48. Rg4 Kf6
>49. Ra4 Rc5 50. Ra3 Ke5 51. Ra4 Rc8 52. Rg4 Kf6 53. Ra4 *
>(here the game was stopped because the notebook's battery was exhausted
>and the notebook turned itself off automatically. It has not been possible
>to resume the game because we needed some time to charge the battery and the
>tournament hall was about to close.
>It is not clear what the outcome of the game could be, but it looked like
>DB Jr was unable to improve its position)
>(time control was 1s/move for DB Jr, and 10mn/game for Chess Tiger.
>Chess Tiger ran on a PII-333 notebook in a W95 Dos box, with 8Mb hash tables)
>
>
>So the result of the match is 1.5-1.5 after adjudication, but I agree it could
>have been 2-1 in favor of DB Jr.
>
>I must add that there have been at least 2 (or was it 3?) other games played
>with the P150 Notebook, but I did not save the games because each time I did an
>operator mistake very early (just after the end of the opening).
>
>You have to understand that DB Jr did not allow any takeback. So in case of a
>mouse slip, which happens too often, it was impossible to continue. I was very
>anxious during this small match, and that is the reason behind all these
>mistakes.
>
>I was anxious because I did not expect to win ANY game. But as you see, Tiger
>simply won the first game...
>
>So now let's see what happened. On his hardware, Tiger was computing only 25,000
>positions per second. At 15mn/game time control, that means it was computing
>375,000 positions per search in average.
>
>Isn't Deep Blue supposed to compute way faster? I don't remember the numbers.
>Was it 1M nodes per second per chip, or 2M nodes per second?
>
>If it's only 1M nodes per second and it could only use 3/4 of a second for its
>search (the rest being taken by "downloading stuffs into the chip" as Bob said),
>then it's still 750,000 positions per search, twice the number of positions that
>Tiger could compute during its search on P150.
>
>
>So my conclusion is that I have seen nothing special in this match. I have seen
>2 chess programs fighting, the one computing more nodes taking the advantage,
>but certainly not crushing its opponent as some people would like us to believe.
>
>The funny thing is that before playing the match I thought I would be crushed.
>You see, I have been the victim of the propaganda myself...
>
>
>Now if you ask me about the chances of Chess Tiger against Deeper Blue and its
>200 processors at tournament time controls, I simply say that I think that Chess
>Tiger has absolutely no chance.
>
>But against a single chip, I would say that a program like Chess Tiger running
>on current top hardware has its chances.
>
>Remember that in similar circumstances (fast games played in the same hall)
>Rebel won against Deep Blue Junior by 3-0.
>
>And you know what? Given that Deep Blue does no forward pruning, this is NO
>SURPRISE.
>
>
>
>    Christophe

This was a very interesting match.  Thanks for taking the time
to pursue this and posting.  :)

Rebel, Chess Tiger, Deep Junior, and Firtz all have tremendous
results.  :)

Best Regards,
Chris Carson



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