[Retros] Let us double the stakes?

[Andrew Buchanan]

Am I correct in thinking that none of the submitted 6-pawn problems is
dual-free?

Andrew.


----- Original Message -----
From: "Joost de Heer" <ildjarn666 at hotmail.com>
To: <retros at janko.at>
Sent: Monday, April 22, 2002 10:13 AM
Subject: Re: [Retros] Let us double the stakes?



>Well, my friends Joost and Dupont (....or was it Dupond? Hard to tell

>without seeing the moustache). Why not an SPG with both White and Black

>having a 6-pawn column side by side?

>

>Lauinger,Frangen,Kisljak :

>Feenschach, No. 2201, 07-10/1977

>4k3/3pP3/3pP3/3pP3/3pP3/3pP3/3pP3/3K4

>

>Stipulation: Provide the shortest proof game to above.


And here is another one:

Unto Heinonen
Suomen Tehtavaniekat 02/1993
4k3/2p1P3/2p1P3/2p1P3/2p1P3/2p1P3/2p1P3/4K3
Proof game in 30.5 moves

Solution (German notation, as I C&P'ed this from PDB)
1. h4 g5 2. hxg5 a5 3. b4 axb4 4. Th4 Ta3 5. Sf3 Te3 6. a4 Sf6 7. gxf6 e5 8.
Tc4 h5 9. a5 h4 10. a6 h3 11. a7 h2 12. a8=L h1=L 13. Ta6 Th6 14. dxe3 Le7
15. Te6 fxe6 16. La3 b3 17. Lc5 Sc6 18. Sd4 exd4 19. Sc3 dxc3 20. g4 Se5 21.
Lg2 b6 22. Lac6 dxc6 23. fxe7 Dd3 24. Ld5 exd5 25. cxd3 Lf5 26. gxf5 Te6 27.
fxe6 Le4 28. dxe4 bxc5 29. f4 dxc4 30. Dc2 bxc2 31. fxe5

Of course not dualfree...

Joost
--
Wartend auf einen schmerzlosen Tod           [Dornen]
Die Flammen der Hölle sind nichts            [Abigor]
Verglichen mit diesem Leben
Voll von wundenleckendem Licht

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