Author: Bruce Moreland
Date: 15:00:52 12/24/01
Go up one level in this thread
On December 24, 2001 at 16:50:47, Thorsten Czub wrote:
>i am sitting here, its christmas. and while it is a little boring, i am doing
>some old positions on old hardware with all kind of software.
>how is your todays software and hardware doing in a position from 1995 ????
>
>
>
>[Event "13th World Microcomputer Chess Championships"]
>[Site "Paderborn (Germany)"]
>[Date "Oct 11 1995"]
>[Round "4"]
>[White "Chess Genius"]
>[Black "Chess System Tal"]
>[Result "0-1"]
>[ECO ""]
>[Opening ""]
>
>1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 d5 5. cd5 Nd5 6. Bg2 Nb6
>7. 0-0 Be7 8. a3 0-0 9. b4 Re8 10. Rb1 Bf8 11. d3 a5
>12. b5 Nd4 13. Nd2 Rb8 14. e3 Ne6 15. Nf3 Ng5 16. Ng5 Qg5
>17. Ne4 Qd8 18. Qc2 Bg4 19. f4 ef4 20. Rf4 Be6 21. Rf2 f5
>22. Nc3 Bf7 23. Ne2 Qd7 24. Qc3 Nd5 25. Bd5 Qd5 26. Nd4 Re5
>27. Qc7 Ra8 28. Qc3 Rae8 29. Nf3 {diagram: black moves} Re3
>{this move played 1995 on tournament time control on a machine
>arround 120 Mhz, as a sac against Genius, is still difficult
>to find for today's chess programs... or what does your
>program say ?} 30. Be3 Re3 31. Nd4 g6 32. Re2 Bc5 33. Re3 Bd4
>34. Qc8 Kg7 35. Rbe1 f4 36. gf4 Qf3 37. Qc7 Be3 38. Re3 Qe3
>39. Kg2 Qe2 40. Kg1 Qd3 41. Qb7 Qa3 42. b6 Qc5 43. Kf1 a4
>44. Qc7 Qc7 45. bc7 Be6 46. h4 a3 0-1
>
>29...Rxe3!
>
>Program (16MB RAM) machine solved ?
>--------------------------------------------------------------
>Shredder5 Pentium 133 not in 1h
>Shredder6 Pentium 133 not in 2h
>Gromit 3.10.2 " (first 4'16", lost,) found again 24'8"
>Hiarcs7.32 " 37'58"
>Gambit-Tiger14.6 " 10" (+0.44 after a few minutes ply 14)
>CSTal2.03 czub2001 Pentium 133 0" (positive score for BLACK!)
>Zarkov4.5v Pentium 133 14'57"
>
>how is your program doing ??
>which hardware??
>
>best wishes, thorsten
I'm surprised other programs have problems with this. Even at the time, this
was findable, and it seemed to me that it was forced.
I ran this on a dual 1.2 ghz machine, and mine first finds this in ply 4, with
an even score.
It then loses it in ply 5, and picks it up again in ply 7, 170 milliseconds in.
My hardware is a lot better, but 1/5 of a second is still alright.
The score is slightly negative, dropping to aroud -0.49, 5 seconds in.
At 30 seconds it fails high and resolves a minute in at about +1.
You've shown us better positions over the course of the last six years. In this
position, a bunch of junk is going on, and this one seems kind of turbulent and
random.
An audience member who farts during a symphony will sometimes fart in tune. It
doesn't mean he should wear a tuxedo and sit on stage eating beans next time.
bruce
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