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Subject: Re: Nice Sacrifice. Why Shredder 8, D.Fritz 8 and Ruffian 2 can't find it?

Author: Jaime Benito de Valle Ruiz

Date: 15:41:44 02/19/04

Go up one level in this thread


On February 19, 2004 at 16:05:07, George Tsavdaris wrote:

>
>30.Nxf7!  A nice sacrifice of Amyan 1.591 against Wildcat 3.0 that some of the
>best engines can't find it in the reasonable time of 4 minutes on a 1.5GHz PIV.
>Shredder 8, Deep Fritz 8-7, Ruffian 2.0 can't find it. It's so easy that i guess
>why? For Junior's and Chess Tiger's is very easy.
>When i'm thinking that Shredder 8 can't see the famous sacrifice Bxh7! and plays
>O-O, i hope programmers of top engines would give more attention to sacrifices
>and be less materialistic.
>
>[D]r2r4/pb3pkp/3q2p1/2pnN3/2B5/1P6/P2QRPPP/4R1K1 w - - 0 30
>
>The game:
>
>[Event "?"]
>[Site "?"]
>[Date "2003.11.12"]
>[Round "1"]
>[White "Amyan 1.591"]
>[Black "WildCat 3.00"]
>[Result "1-0"]
>[ECO "C45"]
>[PlyCount "78"]
>[EventDate "2003.??.??"]
>
>1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5 Qe7 7. Qe2 Nd5 8.
>c4 Ba6 9. b3 g6 10. Nd2 Bh6 11. Nf3 Bxc1 12. Rxc1 O-O 13. Qd2 Nb6 14. Qa5 Bb7
>15. c5 Nd5 16. Bc4 Rfc8 17. O-O Qe6 18. Rcd1 Qe7 19. Rd4 d6 20. cxd6 cxd6 21.
>Re1 Qd7 22. exd6 Qxd6 23. Rde4 Rd8 24. Ng5 Rd7 25. Re8+ Kg7 26. R8e2 Qf4 27.
>Nf3 Qd6 28. Ne5 Rdd8 29. Qd2 c5 30. Nxf7 Kxf7 31. Qh6 Rd7 32. Qxh7+ Kf6 33. Qh6
>a6 34. h4 Rg8 35. h5 Rdd8 36. f4 Qxf4 37. Re6+ Kf5 38. Bd3+ Kg4 39. Rxg6+ Rxg6
>1-0

Another very interesting position. This time I'm analizing it more carefully,
but I doubt I come up with a good and convincent explanation to justify why it's
so difficult for so many engines.

Please, keep posting positions like these here.
Regards,

  Jaime



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