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Subject: Re: Testposition - Tactics

Author: Dann Corbit

Date: 13:34:18 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

Bestia:
E:\programme\winboard\bestia>bestia rough.epd 999 rough.log
Bestia v0.7 (c) 2000-2001 by George Lyapko
hash size=6291444
pawn hash size=1572840
search time for move=999000
  2    65         1        901 f2f4 e5c4
  3    79         1       4044 e3d4 e5f3 h3e6 f7f8
  4    43         7      35917 c3e4 d5e4 d1d6 g8e7
  5    44         9      43628 c3e4 d6b4 c2c3 g8e7 h3g2
  5    44        20     104333 c3e4 d6b4 c2c3 g8e7 h3g2
  6    30        26     138923 c3e4 d6e7 e4d2 h7h6 g5h6 g8h6
  6    30        78     430318 c3e4 d6e7 e4d2 h7h6 g5h6 g8h6
  7    38       100     550110 c3e4 d6b4 e3d2 b4d2 e4d2 a8e8 f2f4 e5c4
  7    38       247    1417194 c3e4 d6b4 e3d2 b4d2 e4d2 a8e8 f2f4 e5c4
  8    -7      1578    8780418 c3e4 d6b4 e4d2 b4d2 e3d2 e5f3 e1e2 f3h2 h3e6 f7f8
  8    -2      1790    9941097 f2f4 e5c4 e3d2 c4d2 d1d2 a8e8 e1e8 f7e8
  8    -1      2335   13000735 h3g2 g8e7 c3e4 d5e4 d1d6 e7f5 d6d2 f5e3
  8    -1      2894   16082145 h3g2 g8e7 c3e4 d5e4 d1d6 e7f5 d6d2 f5e3
  9    -1      3718   20625847 h3g2 g8e7 c3e4 d5e4 d1d6 e7f5 d6d2 f5e3 e1e3
  9     7      5760   32039100 c3e4 d6b4 e4d2 b4d2 e3d2 e5f3 e1e2 f3h2 h3e6 f7g6
f2f4
  9     7      9298   52106136 c3e4 d6b4 e4d2 b4d2 e3d2 e5f3 e1e2 f3h2 h3e6 f7g6
f2f4
 10   -10     10282   57532759 c3e4 d6b4 e4d2 b4d2 e3d2 e5f3 e1e2 f3h2 h3e6 f7g6
f2f4 a8e8
 10    10     31047  169728387 h3g2 g8e7 c3e4 d5e4 d1d6 e7f5 d6d1 e5f3 g2f3 e4f3
 10    10     42031  228953603 h3g2 g8e7 c3e4 d5e4 d1d6 e7f5 d6d1 e5f3 g2f3 e4f3
 11    11     63904  343910961 h3g2 g8e7 c3e4 d6b4 e3d2 b4d2 e4d2 e5g6 d2b3 f7g8
b3c5 a8f8
Suite 1 my move is h3g2.Solution is Nxd5 incorrect 0/1
elapsed_time: 999.01
1
Total nodes:   538828800
Total time:999007
knps:539.364




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