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Subject: Testposition - Tactics

Author: Sune Larsson

Date: 14:15:59 06/21/01



  [D]4k2r/rp5p/pR4p1/4qp2/3pp1PQ/8/2P4P/R5K1 w k - 0 28


  This position is from IM Berg-GM Hector, Sigeman tournament - Malmo.
  These two very tactical skilled Swedes had battled it out just like
  old masters did in the 19th century. Young Emanuel Berg sacked one
  pawn after another but, as it looked, in vain. Now, all good stories
  give some glory to the brave one and that is also what happened here.
  In the above position white, 4 pawns less, has the resource 28.Ra5!! -
  with the point 28.-Qxa5 29.Qf6!  (not 29.Re6+ Kd7). At the present
  moment it looks like this 28.Ra5!! is good enough to draw the game
  for white.


  Test 1: Can your program find the move 28.Ra5!! - evals?

  Test 2. After 28.Ra5!! Qxa5 can your program find 29.Qf6! - evals?


  In the game Hector chose 28.-Qg7 which resulted in a draw. See further down.


  Sune



[Event "Sigeman & Co"]
[Site "Malmoe SWE"]
[Date "2001.06.18"]
[Round "7"]
[White "Berg, E."]
[Black "Hector, J."]
[Result "1/2-1/2"]
[ECO "C34"]
[WhiteElo "2474"]
[BlackElo "2546"]
[PlyCount "85"]
[EventDate "2001.06.12"]

1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Ne4 5. d4 d5 6. Bxf4 c5 7. Bd3 Qb6 8. O-O
cxd4 9. Nbd2 Bf5 10. Nb3 Bc5 11. a4 a6 12. a5 Qa7 13. Nxc5 Qxc5 14. b4 Qxb4 15.
Bc1 Nc6 16. Ba3 Qxa5 17. Bf8 Qc7 18. Bxe4 Bxe4 19. Bd6 Qd7 20. Ng5 f6 21. Nxe4
dxe4 22. Qh5+ g6 23. Qh4 f5 24. g4 Qe6 25. Rfb1 Ra7 26. Rb6 Nxe5 27. Bxe5 Qxe5
28. Ra5 Qg7 29. Re6+ Kd7 30. Rae5 Kc8 31. Re8+ Rxe8 32. Rxe8+ Kd7 33. Qd8+ Kc6
34. Re6+ Kc5 35. Qb6+ Kc4 36. Qb3+ Kc5 37. Qb6+ Kc4 38. Qxa7 Qh6 39. Qxb7 Qe3+
40. Kf1 Qf3+ 41. Kg1 Qxg4+ 42. Kf1 Qd1+ 43. Kg2 1/2-1/2




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