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Subject: Re: Fritz - Quark (CCT4) after black's 61. move

Author: Dieter Buerssner

Date: 17:45:35 01/29/02

Go up one level in this thread


On January 29, 2002 at 04:20:37, Uri Blass wrote:

>I believe that the blunder was at move 64.
>
>[D]1K6/1P6/8/1R6/5kpp/8/8/2r5 w - - 0 64
>64.Ka8 seems to be a draw
>
>Nemeth's post does not give the best defence for white that yace find and 6.b8Q
>instead of 6.Rb3+ in one of his lines seem to be a draw.
>
>I have not the kRvs KPP here but after 64.Ka8 Ra1+ 65.Kb8 Re1 66.Rb4+ Kg3
>67.Kc7 Re7+ 68.Kd6 Rb8 69.b8Q it seems to be a draw.
                    ^^^ Rb8 is not a legal move.
>
>Can someone with the full 5 piece tables and good hardware
>analyze it with yace?

I neither have all 5 piece tables, nor do I have fast hardware. But I have the
important 5-piece tables for this pos (KRPKR and KPPKR IMO) and some patience
:-)


 133475892 20:09.9   0.00 16.  64. Rb4+ Kf5 65. Rb5+ Ke6 66. Ka7 Rc7 67. Rh5
                               Rxb7+ 68. Kxb7 {EGTB} 68...g3 69. Rxh4! Kf5!
                               70. Rh5+ Kf4 71. Rh6 g2 72. Rg6 Kf3! 73. Rg7
                               Kf2! 74. Rg8 g1=Q 75. Rxg1! Kxg1! {No mating
                               material} {0}
 391916260 53:56.9  -0.40 17-- 64. Rb4+ Kg3 65. Rb3+ Kg2 66. Rb2+ Kh3 67. Ka8
                               Ra1+ 68. Kb8 g3 69. Kc7 Ra7 70. Kb6 g2 71. b8=Q
                               g1=Q+ 72. Kc6 Qh1+ 73. Kd6 Ra6+ 74. Kd7 Qd5+
                               75. Ke7 Qc4 76. Qc7 Qxc7+ 77. Kf8 {-1081}
 398509990 54:43.2  -1.40 17-- 64. Rb4+ Kg3 65. Rb3+ Kg2 66. Rb2+ Kh3 67. Ka8
                               Ra1+ 68. Kb8 g3 69. Kc7 Ra7 70. Kb6 Rxb7+ 71.
                               Kc6
 499742410 1:06:47  -1.60 17t  64. Rb4+ Kg3 65. Ka8 Ra1+ 66. Kb8 Kh3 67. Kc8
                               Rf1 68. Kd7 Rf8 69. Ke6 g3 70. Rb3 Rb8 71. Kf5
                               Kh2 72. Kg4 g2 73. Rh3+ Kg1 74. Rb3 {-80}
 634282121 1:24:28  -1.59 17t+ 64. Ka8 Ra1+ 65. Kb8 Kf3
 748791445 1:38:36   0.00 17t  64. Ka8 Ra1+ 65. Kb8 Rc1 {-80}
 749018030 1:38:41   0.00 17.  64. Ka8 Ra1+ 65. Kb8 Rc1 {-80}
 856705270 1:53:45   0.00 18t  64. Ka8 Ra1+ 65. Kb8 Rc1 {-80}
 881899527 1:57:29   0.00 18.  64. Ka8 Ra1+ 65. Kb8 Rc1 {-80}

Also, when I follow your line, I get draw scores, until the illegal move.

Regards,
Dieter



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