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Subject: Re: Mate in 18 moves?

Author: Covax

Date: 12:47:21 01/10/98

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On January 09, 1998 at 11:11:14, Ed Schröder wrote:

>Mate in 18 moves?
>
>I am busy to release some new EPD test sets in the Rebel9 subscription
>area. One the EPD sets is a 200 positions selection from the Austrian
>Modul magazine with lots of funny old stuff.
>
>I then came across the following cool "mate in 18(?)" position:
>
>[Event "?"]
>[Site "3/93-51 Matt in wieviel?"]
>[Date "1992.01.01"]
>[Round "?"]
>[White "Kristian Skoeld: Sc"]
>[Black ""]
>[Result "1-0"]
>[WhiteElo "?"]
>[BlackElo "?"]
>[FEN "1r4r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - - 0 1"]
>
>1. Qxg6+ Kxg6 2. Bd3+ Kh5 3. g4+ Kxg4 4. Rg1+ Kf4 5. Bg3+ Kg4 6. Be1+
>Kh3
>7. Bf1+ Kh2 8. Bg3+ Kxg1 9. Ra1 Ra8 10. Rc1 Ra1 11. Kxa1 Qa7+ 12. Kb2
>Qa1+
>13. Kxa1 Ra8+ 14. Na2 Rxa2+ 15. Kxa2 Bg5 16. hxg5 f2 17. Bh3+ f1=Q 18.
>Rxf1# 1-0
>
>I have tried Rebel9 for a few minutes but it didn't find the mate.
>
>The usual killers (quiet moves) here are:
> 9.Ra1
>10.Rc1
>and especially 16.hxg5 f2
>
>Any program?
>
>- Ed -

Hi,
I test Fritz 5.01, Hiarcs 6.0, Mate 1.0 (mate search engine)
I think, that this test is very hard to today chess programms.
Fritz 5.01 find, if computer x100 faster than Pentium 200 MMX.

Pentium 200 MMX
Fritz 5.01
  1.h5 -1.41
  (00:06:32)

Hiarcs 6.0
  1.h5 -2.14
  (00:04:17)

Mate 1.0
  Not find in 10 minutes
                              With best regards, Covax.




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