Author: Paulo Soares
Date: 02:11:20 05/17/99
Go up one level in this thread
On May 17, 1999 at 04:35:43, Frederic Louguet wrote:
>Many people talk about DBjr and the project of a PCI DBjr card, but the fact is
>we don't know much about DBjr. So here is a little scoop and a few data about
>it. Three months ago, there was an important Computer Event in Paris, the FIHT.
>And on the IBM stand, it was possible to play against DB Junior via the internet
>! Which version of DBjr, I don't know. How many processors ? I don't know. In
>fact, all I know is that it was DB Jr. It was too good an opportunity to miss,
>so with a good friend, Ernest Bonnem, we did this : Ernest was manipulating on
>the stand, and I was at home sending him the moves by phone.
>
>We did 5 games, each at 10mn blitz. Manipulating was difficult and tiring for
>Ernest, because the DBjr interface was not very friendly, and there was no take
>back ! I played the first two games with Fritz 5.32, and the remaining three
>with my program Chess Wizard. The PC used was a PII overclocked at 504 Mhz, 256
>MB ram.
>
>The first game against Fritz was interrupted at the 11th move, because DBjr
>suddenly stopped to play, or more exactly, went into infinite time mode !
>Technical or transmission error, I don't know. Annotations are from Fritz.
>
>[Event "DBJr-Fritz Games"]
>[Site "FIHT/Louguet home"]
>[Date "1999.05.02"]
>[Round "1"]
>[White "Fritz 5.32"]
>[Black "DBJr"]
>[Result "*"]
>[ECO "B01"]
>[Annotator "Louguet,F"]
>[PlyCount "21"]
>
>{131072kB, General.ctg. Pentium II-504
>} 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qe6+ 4.
>Be2 {0.16/12} 4... Nf6 5. Nf3 {0.38/11} 5... Bd7 6. d4 {0.41/11} 6... Qb6 7.
>O-O {0.25/10} 7... e6 8. Re1 {0.13/10} 8... Be7 9. Ne5 {0.25/11} 9... O-O 10.
>Nc4 {0.59/10} 10... Qc6 11. Qd3 {0.63/10} *
>
>
>The second game was an equal one. Fritz held its own quite well. It did not use
>tablebases in this game.
>
>[Event "DBJr-Fritz Games"]
>[Site "FIHT/Louguet home"]
>[Date "1999.05.02"]
>[Round "2"]
>[White "Fritz 5.32"]
>[Black "DBJr"]
>[Result "1/2-1/2"]
>[ECO "D02"]
>[Annotator "Louguet,F"]
>[PlyCount "133"]
>
>{131072kB, General.ctg. Pentium II-504
>} 1. d4 Nf6 2. c4 d5 3. Nf3 Bf5 4. cxd5
>{0.41/10} 4... Qxd5 5. Nc3 {0.41/10} 5... Qd6 6. Qb3 {0.34/11} 6... Qb6 7. Qxb6
>{0.28/11} 7... axb6 8. Bg5 {0.34/11} 8... Nbd7 9. Nd2 {0.41/12} 9... h6 10.
>Bxf6 {0.47/11} 10... exf6 11. e4 {0.44/11} 11... Bg6 12. Bd3 {0.47/11} 12...
>Bb4 13. Nd5 {0.31/11} 13... Bxd2+ 14. Kxd2 {0.44/12} 14... Kd8 15. Rac1 {
>0.28/10} 15... c6 16. Nc3 {0.31/11} 16... Ke7 17. Rhd1 {0.53/9} 17... Rhd8 18.
>a4 {0.63/11} 18... Kf8 19. Ke3 {0.56/9} 19... Re8 20. Kf4 {0.59/10} 20... Red8
>21. Bc2 {0.59/10} 21... Ra5 22. b4 {0.66/9} 22... Rh5 23. h3 {0.72/10} 23...
>Ke7 24. Rd3 {0.75/9} 24... Nf8 25. g4 {0.69/9} 25... Ne6+ 26. Kg3 {0.59/13}
>26... Rxh3+ 27. Kxh3 {0.75/14} 27... Nf4+ 28. Kg3 {0.72/12} 28... Nxd3 29. Bxd3
>{0.97/12} 29... Rxd4 30. Rd1 {0.59/10} 30... Rxb4 31. Kf4 {0.59/12} 31... Rb3
>32. Rc1 {0.53/12} 32... h5 33. gxh5 {0.56/11} 33... Bxh5 34. Ke3 {0.47/11}
>34... Bg4 35. Kd2 {0.56/10} 35... g6 36. Bc2 {0.69/10} 36... Rb4 37. Ke3 {
>0.59/10} 37... Rb2 38. f3 {0.53/9} 38... Be6 39. f4 {0.38/11} 39... Kd6 40. Bd1
>{0.38/10} 40... Rh2 41. Bf3 {0.41/11} 41... Rb2 42. Be2 {0.41/9} 42... Rb3 43.
>Bd3 {0.34/11} 43... Ra3 44. Kd2 {0.28/11} 44... Bb3 45. Bc2 {0.28/11} 45... Bc4
>46. Nd1 {0.31/11} 46... Bb3 47. Bxb3 {0.47/10} 47... Rxb3 48. Ne3 {0.50/11}
>48... Rb4 49. Rc4 {0.34/12} 49... Rb3 50. Ke2 {0.38/11} 50... Rb2+ 51. Kd3 {
>0.41/10} 51... Ke6 52. f5+ {0.44/9} 52... Ke7 53. Nd1 {0.31/10} 53... Rb1 54.
>Nc3 {0.44/10} 54... Rb2 55. Rd4 {0.38/12} 55... gxf5 56. exf5 {0.78/11} 56...
>Rf2 57. Rb4 {0.63/12} 57... b5 58. axb5 {0.78/10} 58... Rxf5 59. bxc6 {0.69/9}
>59... bxc6 60. Rc4 {0.72/10} 60... Rf1 61. Rxc6 {1.50/9} 61... Re1 62. Nd5+ {
>2.22/9} 62... Kd7 63. Rxf6 {2.22/9} 63... Rd1+ 64. Ke4 {2.38/12} 64... Re1+ 65.
>Kf5 {2.34/12} 65... Rd1 66. Rxf7+ {2.84/9} 66... Kd6 67. Nf4 {3.13/12} 1/2-1/2
>
>
>Then, I could not help playing DBjr with my program Chess Wizard, actual French
>computer chess champion. The version which played was the one which earned a
>2656 elo perf in the Aubervilliers Open one week earlier (an elo perf means
>nothing, okay, no need to remind me that :)). The first game was equal, and in
>the end DBjr repeated the position, clearly wanting a draw. Unfortunately,
>Wizard had a nasty bug in the repetition code which kicked in a the most
>inapropriate time. It had only about 30 seconds left at its clock, and did not
>accept the draw, and lost. Always funny. Sorry for not having all the moves, but
>the end of the log (about 10 moves) was eaten by a HD problem, and I did not
>discover it until recently.
>
>[Event "Wizard vs DBjr 10mn"]
>[Site "FIHT/Louguet Home"]
>[Date "1999.05.02"]
>[Round "1"]
>[White "Deep Blue Jr"]
>[WhiteElo ""]
>[Black "Chess Wizard"]
>[BlackElo ""]
>[Result "1-0"]
>
>1. Nf3 Nf6 2. e3 g6 3. d4 Bg7 4. Nbd2 O-O 5. e4 d6 6. Bd3 c5 7. c3 cxd4 8.
>cxd4 e5 9. d5 Na6 10. Bxa6 bxa6 11. O-O Bd7 12. Qb3 Rc8 13. Re1 Qb6 14.
>Qxb6 axb6 15. b3 Bb5 16. Ba3 Rfd8 17. Rac1 Bf8 18. h4 Rxc1 19. Rxc1 h6 20.
>Rc3 Ne8 21. g4 Bd7 22. g5 b5 23. Bb4 f6 24. Ba5 Rb8 25. b4 fxg5 26. hxg5 h5
>27. Kg2 Kf7 28. Kg1 Rc8 29. Rxc8 Bxc8 30. Kh2 Bg4 31. Kg3 Be7 32. Bb6 Bd7
>33. Kh4 Ng7 34. Ne1 Bg4 35. f3 Bc8 36. Nd3 Ne8 37. Nb3 Bf8 38. Na5 Kg7 39.
>Nc6 Kh7 40. f4 exf4 41. Nxf4 Bg4 42. Kg3 Ng7 { a few moves later DB repeated the
>position but Wizard lost, (a bug in the 3 rep.code when time left < 1 mn. Fixed
>since :) }
>
>
>The second game was dynamic and interesting, but my friend (who was beginning to
>feel very tired, which is understandable given the conditions) made a mistake in
>entering a move, and there was no take back for DB.
>
>[Event "Wizard vs DBjr 10mn"]
>[Site "FIHT/Louguet Home"]
>[Date "1999.05.02"]
>[Round "2"]
>[White "Chess Wizard"]
>[WhiteElo ""]
>[Black "Deep Blue Jr"]
>[BlackElo ""]
>[Result "*"]
>
>1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Bd2 Na6 7. Bc4 e6
>8. Nd5 Qa4 9. b3 Qd7 10. Ne5 Qd8 11. Bb5+ c6 12. Nxf6+ gxf6 13. Nxc6 Qb6
>14. Nxa7+ Ke7 15. c3 Rxa7 16. Bc4 Rg8 17. Qf3 h5 18. O-O Bg4 19. Qd3 Bf5
>20. Qf3 Bg4 21. Qd3 Nc7 22. Rfe1 {here mistake from the operator, and no
>take back (!) for DB, so could not continue }
>
>
>So we did a final game, which was won by Chess Wizard.
>
>[Event "Wizard vs DBjr 10mn"]
>[Site "FIHT/Louguet Home"]
>[Date "1999.05.02"]
>[Round "3"]
>[White "Chess Wizard"]
>[WhiteElo ""]
>[Black "Deep Blue Jr"]
>[BlackElo ""]
>[Result "1-0"]
>1. e4 Nc6 2. Nf3 e5 3. Bb5 Nf6 4. O-O Bc5 5. Nxe5 Nxe5 6. d4
>a6 7. Ba4 b5 8. Bb3 Bxd4 9. Qxd4 d6 10. f4 c5 11. Qd2 Nc6 12. e5
>dxe5 13. fxe5 Nxe5 14. Qxd8+ Kxd8 15. Bg5 c4 16. Rxf6 Kd7 17. Rf1
>cxb3 18. axb3 f6 19. Be3 Bb7 20. Nc3 Rhe8 21. Bc5 Kc6 22. b4
>Nc4 23. b3 Nb6 24. Rac1 Nd7 25. Bd4 Rad8 26. Na2 Re4 27. Bf2
>Ne5 28. Bc5 a5 29. Ra1 Rd2 30. Rf2 Ree2 31. Rc1 Kd7 32. bxa5
>Ng4 33. a6 Bc6 34. Rxe2 Rxe2 35. h3 Rxg2+ 36. Kf1 Nh2+ 37. Ke1
>Nf3+ 38. Kf1 Nd2+ 39. Ke1 Nxb3 40. Rd1+ Ke8 41. Bf2 Na5 42. Nb4
>Rh2 43. Nxc6 Nxc6 44. Rd6 Rxh3 45. Rxc6 Kd7 46. a7 Ra3 47. Rc3
>Ra2 48. Bb6 h5 49. Rc7+ Kd6 50. Rxg7 f5 51. Rg8 Ra1+ 52. Ke2
>Ra4 53. a8=Q Rxa8 54. Rxa8 h4 55. Rh8 h3 56. Rxh3 1-0 (actually
>went to mate }
>
>So, we wanted facts, here are facts. Why didn't we talk about this earlier ?
>Well, we (mostly Ernest in fact) tried to have a better contact with the DB Team
>and get access to an internet site where we could play DBjr more thoroughly.
>Unfortunately they do not seem interested in that. So all we have are these 5
>games. It is not much, but it is better than nothing. I don't draw any
>conclusion from these games, except that now, I am not really convinced that
>DBjr would kill every micro program at each game (and it was 10 minutes blitz,
>so not a very easy setting for the micro).
>
>But of course, maybe DBjr was doing all sorts of things at the other end of the
>phone line (playing Q3Test ? :)) and did not had all its computing power
>available...Well, all I can say is that I don't want to begin a new war between
>the pro-DBs and the anti-DBs. It was not a scientific experiment, but an
>opportunity to play a few games against something we don't really know about.
>Even if it proves nothing, it was fun to mate DBjr ('cause of course it did not
>resign).
Frederic,
Thanks by this excelent history.
When Wizard will be avaiable?
And LctIII?
Regards,
Paulo Soares, from Brazil
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.