Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: endgame position, possible win left out?

Author: Harald Faber

Date: 01:19:27 03/25/99

Go up one level in this thread


On March 25, 1999 at 03:42:20, Howard Exner wrote:

>>[Event "WRG"]
>>[Site "?"]
>>[Date "1999.03.24"]
>>[Round "5"]
>>[White "Prog X"]
>>[Black "Prog Y"]
>>[Result "1/2-1/2"]
>>[ECO "C15"]
>>
>>1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 dxe4 6. f3 c5 7. Bf4 Qa5 8.
>>Qd2 cxd4 9. cxd4 Qxd2+ 10. Kxd2 Nf6 11. Re1 Nc6 12. c3 exf3 13. Nxf3 O-O 14.
>>Bd3 Rd8 15. Ne5 Nxe5 16. Bxe5 b6 17. Rhf1 Ne8 18. Be4 Ba6 19. Bxa8 Bxf1 20.
>>Rxf1 Rxa8 21. c4 Rd8 22. Kc3 f6 23. Bg3 Nd6 24. Bxd6 Rxd6 25. c5 Rd8 26. Kc4
>>Kf8 27. Rb1 Rc8 28. a4 Ke8 29. a5 bxc5 30. dxc5 Kd7 31. Rb7+ Rc7 32. Rb8 Kc6
>>33. a6 e5 34. Rd8 Re7 35. Rc8+ Kd7 36. Rb8 e4 37. Rb7+ Ke6 38. Kd4 f5 39. g4
>>Rd7+ 40. Rxd7 Kxd7 41. gxf5 Kc6 42. Kxe4 Kxc5 43. Ke5 Kc4 44. Kd6
>
>Instead of Kd6, h4 looks like it should win. Black will have to eventually
>play h6 or h5 but then white plays f6.

Seems correct. 44.h4 h5 45.f6! +- or after 44...h6 white can play 45.Kd6 because
the stalemate doesn't work, black will come into Zugzwang because white has the
move h4-h5. So 44...h5 is forced.
I also found it at this moment with Genius6, took him some seconds to find it on
P2-350. Also WChess2000 gets it quickly. Zarkov5 doesn't up to 6 min...
White was MChessPro8 and black pieces were WChess2000.

I admit I was close to interrupt the game and take 1-0 as result when I saw an
eval of +7.xx. Now I am a bit more careful. :-)

Thanks for the answer.

>>Kd4 45. Kc7
>>Kc5 46. h4 h5 47. Kb7 Kd6 48. Kc8 Kc6 49. Kd8 Kd5 50. Kd7 Ke4 51. Kc7 Kd5 52.
>>Kd7 Ke4 53. Kc8 Ke5 54. Kb8 Kd6 55. Ka8 Kd7 1/2-1/2
>>
>>White played 44.Kd6 with +7.xx and black saw himself down -5.xx.
>>Was this position a draw anyway already or did white leave out a
>>chance to win?



This page took 0.01 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.