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Subject: Testposition (easy perpetual check)

Author: Gerrit Reubold

Date: 16:16:59 07/03/99

Hi all,

please test your programs with the following position

5rk1/1r3pp1/pp2pq2/3p4/3Q4/1PR5/P4PPP/4R1K1 w - -

it is from a game which my program (Bringer) lost with white against The Crazy
Bishop. The draw is very easy to see (for humans): Qxf6 gxf6, and then rook
checks at h3, g3, f3... How long does your program take to find Qxf6 *with a
draw score*. How many plies / seconds? Question to the programmers: What do you
do to solve such positions fast? Extending on checks is not enough, my program
needs a 12 ply search (8 minutes on a PII-300) to find the draw (Qxf6 is found
earlier).

Greetings,
Gerrit Reubold

Re: Testposition (easy perpetual check) James Robertson 00:17:25 07/05/99
Re: Testposition (easy perpetual check) Frank Schneider 03:19:17 07/04/99
- Re: Testposition (easy perpetual check) Robert Hyatt 10:33:01 07/06/99
  - Re: Testposition (easy perpetual check) blass uri 14:15:44 07/06/99
    - Re: Testposition (easy perpetual check) pete 13:02:52 07/07/99
      - Re: Testposition (easy perpetual check) Robert Hyatt 20:18:35 07/07/99
        
        Re: Testposition (easy perpetual check) pete 11:38:53 07/08/99
        
        Re: Testposition (easy perpetual check) blass uri 22:38:37 07/07/99
        
        Re: Testposition (easy perpetual check) Robert Hyatt 07:51:47 07/08/99
    - Re: Testposition (easy perpetual check) Robert Hyatt 20:43:02 07/06/99
Q Dave C. 23:12:39 07/03/99
Re: Testposition (easy perpetual check) allan johnson 23:12:33 07/03/99
Re: Testposition (easy perpetual check) Pete Galati 16:48:49 07/03/99
- Re: Testposition (easy perpetual check) Gerrit Reubold 22:47:51 07/03/99
  - Re: Testposition (easy perpetual check) Pete Galati 07:03:19 07/04/99
    - Re: Testposition (easy perpetual check) Pete Galati 07:43:57 07/04/99
      - Re: Testposition (easy perpetual check) pete 09:47:45 07/04/99
- Re: Testposition (easy perpetual check) Charles Milton Ling 17:45:54 07/03/99

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