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Subject: Re: Very easy mate to solve ...

Author: Paul

Date: 18:29:19 05/05/01

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On May 05, 2001 at 20:12:25, Heiner Marxen wrote:

>On May 05, 2001 at 18:41:22, Paul wrote:

>Yes, I also like puzzles of that kind where logic helps.  I just solved
>some levels of sokoban.  To those who don't share this hobby it often appears
>to be quite strange... it does not serve any obvious purpose... well,
>I just like to _solve_ puzzles, and enjoy the creative thinking involved.

Or create a program that solves the puzzle for you ... did that many times.
Will have to look up sokoban tomorrow, don't know that yet.

>Hey, wait a second... while I write this answer, Chest comes up with a mate
>in 7!  Sorry Paul, that is unexpected for me, too.  Here we go:

 ChestMate = PretzMate - 1; /* Told yer! :) */

>There are two key moves:  exf2+ and  Qaxd4 (the first two moves of your PV).
>My PVs (with some more variants) look like:
>
>exf2+ Bxf2  Qaxd4 Be3   Nxc2+  Qbxc2 Qxe2+  Kxe2  Qfxe3+ dxe3 Qxe3+  Qxe3 Qxe3#
>      Nxf2  Qaxd4 Bxd3  Bxd3   Ne5   Qfxf2+ Bxf2  Qxf2+  Qxf2 Qxf2+  Rxf2 Bxf2#
>      Rxf2  Qaxd4 Bxd3  gxh1Q+ Qhf1  Qxf2+  Bxf2  Qxf2+  Qxf2 Bxd3+  Ne5  Bxf2#
>      Qxf2  Qcxd4 Qhxg2 Qxf2+  Qxf2  Bxf3+  Qe3   Qfxe3+ dxe3 Qe2#
>Qaxd4 Bxd3  exf2+ Bxf2  Qxf2+  Nxf2  Bxd3   Nd4   Qxe2+  Nxe2 Qfxf2+ Rxf2 Qxf2#
>      Qbxd3 exf2+ Bxf2  Qxf2+  Nxf2  Bxd3   Nd4   Qxe2+  Nxe2 Qfxf2+ Rxf2 Qxf2#
>      dxe3  Nxf3+ Nxf3  Qxe2+  Kxe2  Qxf3+  Ke1   Qdxe3+ fxe3 Qxf1#
>                                                         -*-  Qcxe3+ Qxe3 Nxc2#
>
>Took 2.3 hours on K7/600 with 350MB hash.

Reasonable time!

>Haha, you are joking ;-)
>OTOH, he must have quite an interesting collection by now.  At some time,
>he should offer us the complete collection:  "Easy and very easy mates"  ;-)
>
>And then he starts his new collection "Not so easy mates" ... <shudder>.

Yes, when he gets his new machine & implements hash tables, I'm out! :) Then
it's just for the matesolvers & proofnumber programs. Hmmm ... maybe I'll that
sometime!

>>>Groetjes,

>I'm from northern Germany, and do understand most of "Platt", which is not
>_that_ different... well there are some similarities.  Some years ago I
>spent 3 days in Utrecht, visiting another puzzle fan (Andreas Gammel),
>so I have heard some Dutch myself.  I dare to imagine the pronunciation
>of "Groetjes" (Chhhröitjes)... does that come close?

Almost ... 'roet' as in the English 'root', 'es' as in 'us' and the 'G' as in
getting a sore throat ... Chhhrootjus :)

So you *are* in Germany, sometimes wondered coz of your posting times. No don't
look at mine ... ;)

>>Venlig Hilsen,
>
>Now you got me.. my Dutch/German is just not handy :-(  I'll look it up.

Haha ... It's Danish! for Freundliche Grüße ...

>Herzliche Grüße aus Berlin,
>Heiner

The fffffame from Amffffterdam,
Paul

PS: have to get me a new keyboard ... the ffff is ffffftuck! :(



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