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Subject: Re: Fairly simple endgame position

Author: Matthew White

Date: 12:52:28 06/06/03

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On June 06, 2003 at 05:40:21, Lyn Harper wrote:

>  [D]k7/5p2/4pP2/4P3/3P4/8/8/4K3 - - w
>
>   Hope the diagram comes out :)
>  Goood old CM9k does it in pretty short order, without EGDB. About 1min18sec on
>my Athlon 2400.   But Ruffian, Genius7 and Green Light Chess are stumped ,even
>after about 10min.
>   I don't have Fritz or Shredder. The old Chessica got it in over 5min.
>   How does your proggy do?
I don't know if you entered the string into ruffian correctly...

ruffian: analyze
[analyze]
  k7/5p2/4pP2/4P3/3P4/8/8/4K3 w - (null)
  Depth   Time  Score    Best line
  17-->   1.13   8.74    d5 exd5 e6 fxe6 f7 Kb7 f8=Q Kc6 Qe7 e5 Qxe5 Kc5 Kd2
                         Kc6 Qd4 Kd6 Kc3
  18/31   2.57   8.65    d5 exd5 e6 fxe6 f7 Kb7 f8=Q Kc6 Qe7 e5 Qxe5 Kc5 Kd2
                         Kc6 Qd4 Kd6 Qb6+ Kd7 Kc3
  18-->   3.30   8.65    d5 exd5 e6 fxe6 f7 Kb7 f8=Q Kc6 Qe7 e5 Qxe5 Kc5 Kd2
                         Kc6 Qd4 Kd6 Qb6+ Kd7 Kc3
  19/31   5.64   8.91    d5 exd5 e6 fxe6 f7 Kb7 f8=Q Kc6 Qe7 Kb5 Qxe6 Kc5
                         Kd2 Kd4 Qb6+ Ke5 Qc7+ Kf5 Kc3 Ke6 Kd4
  19-->   7.03   8.91    d5 exd5 e6 fxe6 f7 Kb7 f8=Q Kc6 Qe7 Kb5 Qxe6 Kc5
                         Kd2 Kd4 Qb6+ Ke5 Qc7+ Kf5 Kc3 Ke6 Kd4
  20/31   7.14     ++    d5
  20/35  11.14   9.84    d5 exd5 e6 fxe6 f7 Kb7 f8=Q Kc6 Qe7 Kb5 Qxe6 Kc5
                         Kd2 Kd4 Qb6+ Ke5 Kc3 Ke4 Qe6+ Kf4 Kd4 Kf3 Kxd5
  20-->  13.30   9.84    d5 exd5 e6 fxe6 f7 Kb7 f8=Q Kc6 Qe7 Kb5 Qxe6 Kc5
                         Kd2 Kd4 Qb6+ Ke5 Kc3 Ke4 Qe6+ Kf4 Kd4 Kf3 Kxd5
  21/35  19.85  10.04    d5 exd5 e6 fxe6 f7 Kb7 Kd2 Kc6 Ke3 e5 f8=Q Kd7 Qf7+
                         Kd6 Qf6+ Kc5 Qe7+ Kc4 Qc7+ Kb4 Qxe5 d4+ Qxd4+ Kb3
                         Qd5+ Kc3 Qc5+ Kb3 Kd4
  21-->  23.55  10.04    d5 exd5 e6 fxe6 f7 Kb7 Kd2 Kc6 Ke3 e5 f8=Q Kd7 Qf7+
                         Kd6 Qf6+ Kc5 Qe7+ Kc4 Qc7+ Kb4 Qxe5 d4+ Qxd4+ Kb3
                         Qd5+ Kc3 Qc5+ Kb3 Kd4
  22/37  36.24  10.14    d5 exd5 e6 fxe6 f7 Kb7 Kd2 Kc6 Ke3 e5 f8=Q Kd7 Qf7+
                         Kd6 Qf6+ Kc5 Qe7+ Kc4 Qc7+ Kb4 Qxe5 d4+ Qxd4+ Kb3
                         Qd5+ Kc3 Qc5+ Kb3 Kd4 Ka4 Kd5
  22-->  41.57  10.14    d5 exd5 e6 fxe6 f7 Kb7 Kd2 Kc6 Ke3 e5 f8=Q Kd7 Qf7+
                         Kd6 Qf6+ Kc5 Qe7+ Kc4 Qc7+ Kb4 Qxe5 d4+ Qxd4+ Kb3
                         Qd5+ Kc3 Qc5+ Kb3 Kd4 Ka4 Kd5



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