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Subject: Re: Testposition - Tactics

Author: Otello Gnaramori

Date: 13:32:44 07/11/01

Go up one level in this thread


On July 11, 2001 at 12:52:30, Sune Larsson wrote:

>
> [D]r5nr/pp3kpp/2pb4/3pn1P1/8/2N1B2B/PPP2P1P/2KRR3 w - - 0 20
>
> IM Berg,Emanuel 2496 - GM Akesson,Ralf 2481
>
>
> This is a position from today's 10th round in the SWE-ch. 19 year old
> Berg is a very gifted tactician. Here he chose 20.Nxd5!, got an advantage
> and won the game vs his more experienced opponent. It was from a e5-pushed
> Caro-Kann.
>
> Test: How long before your program finds and chooses 20.Nxd5!
>
> The whole game below.
>
>
>[Event "SM"]
>[Site "SWE"]
>[Date "2001.07.11"]
>[Round "10"]
>[White "Berg, Emanuel"]
>[Black "Akesson, Ralf"]
>[Result "1-0"]
>[ECO "B12"]
>[WhiteElo "2496"]
>[BlackElo "2481"]
>[PlyCount "61"]
>[EventDate "2001.07.11"]
>
>1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 f6 7. Nf4 Bf7 8. Qe2
>fxe5 9. Qxe5 Nd7 10. Qe2 Qf6 11. g5 Qxd4 12. Nxe6 Bxe6 13. Qxe6+ Be7 14. Bh3
>Qe5+ 15. Be3 Qxe6 16. Bxe6 Bd6 17. O-O-O Ke7 18. Bh3 Ne5 19. Rhe1 Kf7 20. Nxd5
>cxd5 21. Rxd5 Rd8 22. Bc5 Nc4 23. Rd4 b6 24. Be6+ Kg6 25. Bxc4 bxc5 26. Re6+
>Kxg5 27. Rdxd6 Nf6 28. Rc6 Rd7 29. Rxc5+ Kh4 30. Re3 Ng4 31. Re4 1-0
>
>Sune

Fritz6 on a K6-III-450

Analysis by Fritz 6:

1.Nxd5--
  ³  (-0.44)   Depth: 1/4   00:00:00
1.Bd4 Nf3 2.Be6+ Kg6
  ²  (0.66)   Depth: 3/8   00:00:00
1.Bd4 Nf3 2.Be6+ Kg6
  ²  (0.66)   Depth: 3/8   00:00:00
1.Bd4 Nf3 2.Be6+ Kg6
  ²  (0.66)   Depth: 3/8   00:00:00
1.Bd4 Nf3 2.Be6+ Kg6
  ²  (0.66)   Depth: 3/8   00:00:00
1.Bd4 Nf3 2.Be6+ Kg6
  ²  (0.66)   Depth: 3/8   00:00:00
1.Bd4 Nf3 2.Be6+ Kg6
  ²  (0.66)   Depth: 3/8   00:00:00
1.Bd4 Nf3 2.Be6+ Kg6
  ²  (0.66)   Depth: 3/8   00:00:00
1.Bd4--
  ²  (0.34)   Depth: 4/13   00:00:00  1kN
1.Bd4-- Nf3 2.Re3 Nxg5
  ³  (-0.50)   Depth: 4/15   00:00:00  2kN
1.f4!
  ³  (-0.47)   Depth: 4/15   00:00:00  2kN
1.f4! Nc4 2.Rd4 Re8
  =  (0.19)   Depth: 4/15   00:00:00  3kN
1.Ne4!
  =  (0.22)   Depth: 4/15   00:00:00  4kN
1.Ne4! Bb4 2.c3 dxe4 3.cxb4
  ²  (0.41)   Depth: 4/15   00:00:00  5kN
1.Ne4 Bb4 2.Nd2 h6 3.Bf5 hxg5 4.Bxg5
  ²  (0.28)   Depth: 5/13   00:00:00  10kN
1.Bg2!
  ²  (0.31)   Depth: 5/21   00:00:00  21kN
1.Bg2! Bb4 2.Bd4 Ng4
  ²  (0.34)   Depth: 5/21   00:00:00  31kN
1.Bg2 Ne7 2.Ne4 Bb4 3.c3 dxe4 4.cxb4
  ²  (0.31)   Depth: 6/19   00:00:00  52kN
1.Bg2 Ne7 2.h4 Nc4 3.Bd4 Bf4+ 4.Kb1 Rhe8
  =  (0.09)   Depth: 7/25   00:00:00  158kN
1.Ne4!
  =  (0.13)   Depth: 7/25   00:00:00  180kN
1.Ne4 Bb4 2.Nd2 Bxd2+ 3.Bxd2 Nf3 4.Re6 Re8 5.Rxe8 Kxe8
  =  (0.09)   Depth: 8/23   00:00:01  395kN
1.Ne4 Bc7 2.Nc5 Nf3 3.Be6+ Kg6 4.Rh1 b6 5.h4 Nxh4
  =  (0.09)   Depth: 9/26   00:00:04  1195kN
1.Bg2!
  =  (0.13)   Depth: 9/26   00:00:04  1428kN
1.Bg2 Ne7 2.Ne4 Bb4 3.Nd2 Nf5 4.Bf4 Ng6 5.Bc7 Rae8
  =  (0.06)   Depth: 10/25   00:00:08  2713kN
1.Ne4!
  =  (0.09)   Depth: 10/25   00:00:09  2938kN
1.Ne4 Bb4 2.Nd2 Bxd2+ 3.Bxd2 Nf3 4.Re6 Ne7 5.Re2 Nxh2
  =  (0.13)   Depth: 11/31   00:00:28  9146kN
1.Nxd5!
  =  (0.16)   Depth: 11/31   00:00:44  14676kN
1.Nxd5! cxd5 2.Rxd5 Nc4 3.Rf5+ Kg6 4.Bd4 Ne7 5.Re6+ Kh5
  =  (0.19)   Depth: 11/31   00:00:46  15334kN
1.Nxd5 cxd5 2.Rxd5 Nc4 3.Bf1 Nxe3 4.Rxe3 Bxh2 5.Bc4 Kg6
  ²  (0.41)   Depth: 12/33   00:01:05  21833kN
1.Nxd5 cxd5 2.Rxd5 Nc4 3.Bf1 Nxe3 4.Rxe3 Be7 5.Rd7 Rc8
  ²  (0.50)   Depth: 13/33   00:02:10  43431kN


Regards.



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