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Subject: Re: how to lose pawn endgame with a pawn up (Ktulu 7.5)

Author: Kurt Utzinger

Date: 11:14:04 03/01/06

Go up one level in this thread


On March 01, 2006 at 13:36:20, Uri Blass wrote:

>Movei lost against Jonny after blundering by h4
>
>I find that programs have problem to find that h4 is losing
>
>Here is the full game and analysis by Glaurung
>
>[Event "CEGT 40/40 (2Ghz)"]
>[Site "?"]
>[Date "2006.02.28"]
>[Round "2.1"]
>[White "Jonny 2.89"]
>[Black "Movei 00.8.352"]
>[Result "1-0"]
>[ECO "B22"]
>[PlyCount "151"]
>[EventDate "2006.02.??"]
>
>1. e4 c5 2. c3 e5 3. Nf3 Nc6 4. Bb5 a6 5. Qa4 Nf6 6. Bxc6 dxc6 7. Nxe5 Qc7 8.
>f4 Bd6 9. d3 Bxe5 10. fxe5 Qxe5 11. O-O Qh5 12. Nd2 O-O 13. Nf3 Bg4 14. Bf4
>Rfe8 15. Qb3 b5 16. c4 Qg6 17. Qc3 Nd7 18. Kh1 Rad8 19. Rae1 b4 20. Qc2 Kh8 21.
>Re3 Bh5 22. Nh4 Qf6 23. Rg3 Nf8 24. Rg5 Bg6 25. Nxg6+ fxg6 26. Rg3 Ne6 27. Qc1
>Nxf4 28. Rxf4 Qd4 29. b3 Rf8 30. Rgf3 Rf6 31. g3 g5 32. Rxf6 gxf6 33. Qg1 Qd6
>34. Qa1 Kg7 35. Rf5 h6 36. Kg2 Re8 37. Rf1 Re6 38. Qd1 Qd4 39. Qc2 Rd6 40. Rd1
>Qe5 41. Qf2 h5 42. Qe2 g4 43. Qe3 Rd7 44. Rf1 Kg6 45. Qe2 Qd4 46. Rd1 Rd8 47.
>Qf1 Qb2+ 48. Kg1 Qe5 49. Qe2 Qc3 50. Qe3 Qc2 51. Qd2 Qxd2 52. Rxd2 f5 53. Rf2
>fxe4 54. dxe4 Rd1+ 55. Kg2 Re1 56. Rf4 Re2+ 57. Rf2 Rxe4 58. Kf1 Rd4 59. Ke1
>Rd8 60. Rd2 Rxd2 61. Kxd2 Kg5 62. Ke3 Kf5 63. Kd3 h4 64. gxh4 Kg6 65. Ke4 Kh5
>66. Kf5 Kxh4 67. Kg6 a5 68. Kf6 Kh5 69. Kf5 Kh4 70. Kg6 Kh3 71. Kg5 Kxh2 72.
>Kxg4 Kg1 73. Kf5 Kf2 74. Ke6 Ke3 75. Kd6 Kd4 76. Kxc6 1-0
>
>
>
>79972: Jonny 2.89 - Movei 00.8.352, CEGT 40/40 (2Ghz) 2006
>[D]8/8/p1p5/2p2k1p/1pP3p1/1P1K2P1/P6P/8 b - - 0 1

      Hi Uri
      Ktulu 7.5 would never plays 63...h4?? and after this
      move, the program sees a win very fast for White.
      Kurt

Ktulu 7.5 - Utzinger,K, Blitz:50'+3"
8/8/p1p5/2p2k2/1pP3pp/1P1K2P1/P6P/8 w - - 0 1

Analysis by Ktulu 7.5:

2.Ke3 h3 3.Kd3 a5 4.Ke3 Ke5 5.Kd3 Kf5
  =  (0.00)   Tiefe: 13   00:00:00  33kN
  =  (0.00)   Tiefe: 18   00:00:01  941kN
2.gxh4 Kg6 3.Ke4 Kh5 4.Kf5 Kxh4 5.Kg6 Kh3 6.Kg5 a5 7.Kf5 Kh4 8.Kg6
  ²  (0.30)   Tiefe: 18   00:00:03  2481kN
  +-  (6.07)   Tiefe: 20   00:00:34  25899kN

(Utzinger, MyTown 01.03.2006)



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