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Subject: Re: Endgame Test Position

Author: Robert Hyatt

Date: 09:24:44 10/12/00

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On October 12, 2000 at 12:03:35, Howard Exner wrote:

>Here is a position with that c/f pawn draw theme lurking in the background.
>White must avoid greedy pawn grabbing moves like Qa8 or similar. Some best moves
>are Qh1 (the obvious one), Qh7, and Kg6. There are more, but anything that
>basically stops the advanced c pawn will work.
>
>How do TableBase and non TB programs compare on this one?
>
>[D]7Q/6K1/p1p5/8/1Pk5/2p5/8/8 w - -


Like this:

         (4)    6->   0.56   6.89   1. Qc8 Kb5 2. Qb7+ Ka4 3. Qxa6+ Kb3
                                    4. Qb7 Kc4
                7     0.59     ++   1. Qc8!!
         (3)    7     1.14   7.65   1. Qc8 Kb5 2. Kf8 a5 3. bxa5 c5 4.
                                    a6
                7->   1.44   7.65   1. Qc8 Kb5 2. Kf8 a5 3. bxa5 c5 4.
                                    a6
                8     1.53     ++   1. Qc8!!
                8     2.48  Mat16   1. Qc8 Kb3 2. Qxa6 c2 3. Qxc6 <HT>
                8->   3.06  Mat16   1. Qc8 Kb3 2. Qxa6 c2 3. Qxc6 <HT>
                9     3.25  Mat16   1. Qc8 Kb3 2. Qxa6 c2 3. Qxc6 <HT>
         (4)    9->   4.50  Mat16   1. Qc8 Kb3 2. Qxa6 c2 3. Qxc6 <HT>
         (3)   10     4.98  Mat16   1. Qc8 Kb3 2. Qxa6 c2 3. Qxc6 <HT>
         (4)   10->   7.72  Mat16   1. Qc8 Kb3 2. Qxa6 c2 3. Qxc6 <HT>
         (3)   11     9.21  Mat16   1. Qc8 Kb3 2. Qxa6 c2 3. Qxc6 <HT>
         (4)   11->  13.53  Mat16   1. Qc8 Kb3 2. Qxa6 c2 3. Qxc6 <HT>


:)

Bob



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