Author: Mike S.
Date: 16:33:53 12/07/02
Go up one level in this thread
On December 07, 2002 at 19:00:55, Rolf Tueschen wrote:
>On December 07, 2002 at 17:18:02, Mike S. wrote:
>
>>It's amazing to see when engines follow
>>theory or master's moves by their own calculation from the fourth move on, up to
>>the 15th move... sometimes :o)
>(...)
>How could we be sure that the programmers had not implemented that already in
>tiny pockets of the chess engine?
It indicates good understanding of general opening principles, of some engines.
But actually, such long variants remain exceptions. Furthermore, the games which
are "reproduced" partially, are often not the one's between top GMs, but of
mediocre GMs or IMs (at least on one side), so not even the suspicious will find
much what would raise doubt if something was hidden "book-like" in the engine.
Most often the "novelty" came early.
For the long variant mentioned, Junior 5 vs. Shredder 5.32 followed a game
Robert Byrne - Wexler (never heard of Wexler before) of 1964, for 13 calculated
moves:
[Event "Novemberturnier 60'/40"]
[Site "Wien"]
[Date "2002.11.15"]
[Round "2.2"]
[White "Junior 5"]
[Black "Shredder 5.32"]
[Result "0-1"]
[ECO "E50"]
1. c4 e6 2. d4 Nf6 3. Nf3 b6 4. Nc3 Bb4 5. e3 O-O 6. Bd3 c5 7. O-O d5 8. cxd5
exd5 9. Ne5 Bb7 10. Bd2 Nc6 11. a3 Nxe5 12. dxe5 Bxc3 13. Bxc3 Ne4 14. Bxe4
dxe4 15. Qg4 Qe7 16. Rfd1 Qe6 17. Qxe6 $146 fxe6 18. Rd6 Bd5 19. Rd1 Kf7 20.
Rd7+ Kg6 21. h3 Rf7 22. Rxf7 Kxf7 23. Kh2 g5 24. Kg3 h6 25. Rd2 Rf8 26. Kg4 Kg6
27. h4 h5+ 28. Kh3 g4+ 29. Kg3 a5 30. a4 Kf5 31. Rd1 Rb8 32. Kh2 Bc6 33. Ra1
Rd8 34. Ra3 Bd5 35. Kg1 Bc4 36. Ra1 Be2 37. Kh2 Rd1 38. Rxd1 Bxd1 39. Kg1 Bxa4
40. Kh2 Bb3 41. Be1 a4 42. Kg3 Bd1 43. Bc3 b5 44. Bd2 b4 45. Kh2 Kxe5 46. Bc1
Kd5 47. Kg3 Kc4 48. Kh2 Kd3 0-1
Maybe the ugliest counter example was the last game, CT 14-Ruffian where Ruffian
played the opening bad IMO:
[Event "Novemberturnier 60'/40"]
[Site "Wien"]
[Date "2002.11.18"]
[Round "2.7"]
[White "Chess Tiger 14"]
[Black "Ruffian 1.0.1"]
[Result "1-0"]
[ECO "E29"]
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 {(d6)} 6. e3 Nc6 {(0-0)}
7. Bd3 O-O {(Da5)} 8. Nf3 d6 {(b6)} 9. Qc2 cxd4 $146 {
(e5) Gibt grundlos Zentrumseinfluss auf und entdoppelt die weissen c-Bauern...}
10. cxd4 e5 11. d5 Na5 {(e4) Springer an den Rand...} 12. Bd2 {(0-0)} Bg4 {
(e4) Die Dame steht nicht mehr auf d1... Ruffian spielte diese letzte Partie
nicht gut - so als ob die Engine gewusst haette, dass sie den Turniersieg schon
erreicht hatte, und sich schon mehr mit der Siegesfeier beschaeftigte.Allerdings
: Ohne Tigers Verlust auf Zeit in der ersten Begegnung der beiden haetten sie
vermutlich in der Tabelle die Plaetze getauscht.} 13. Ng5 Rc8 {(h6)} 14. Bxh7+ {
(Sxh7)} Kh8 15. Bd3 b5 {(Sxc4)} 16. h3 {(0-0)} Bd7 {(Lh5)} 17. c5 {(0-0)} Nxd5
{(Txc5)} 18. Ne4 Nb7 {(Lf5)} 19. Qd1 Qh4 {(Kg8)} 20. Nxd6 Nxc5 21. Bc2 {(0-0)}
Rc6 {(Tc7)} 22. g3 Qh6 23. Nxb5 Nb6 24. Qe2 {(h4)} a6 {(Ta8)} 25. Nd4 {(Sc3)}
Rf6 {(exd4)} 26. Rc1 {(Sb3)} Rc8 27. h4 Kg8 28. e4 {(Th2)} Qh7 29. Nf5 Bb5 {
(Lxf5)} 30. Qd1 Kh8 {(Sc4)} 31. h5 {(Lg5)} Rd8 {(Sc4)} 32. Qg4 Rd7 33. Qh4 {
(Le3)} Rc6 34. h6 g6 {(g5)} 35. Ne7 Re6 {(Txd2)} 36. Bg5 Rdd6 37. Be3 {(Sf5)}
Nbd7 38. a4 Bc6 {(Lc4)} 39. Qg5 {(0-0)} Bb7 40. O-O Rd4 {(Sd3)} 41. Bb1 {(Tfd1)
} f5 42. Nc8 Bxc8 {(Df7)} 43. exf5 gxf5 44. Bxf5 Qe7 45. Qg7+ {(Lxe6)} Qxg7 46.
hxg7+ Kxg7 47. Bxe6 {(Lxd4)} Nxe6 48. Bxd4 exd4 49. Rxc8 Kf7 50. Re1 {(a5)}
Ndc5 51. Re5 1-0
>Newbie greetings
>
>Rolf Tueschen
I take that as "happy new year" (newbie must be a typo :o))
Regards,
Mike Scheidl
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