Fwd: Re: Fwd: Re: [Retros] Two little SPG-challenges

[Christoph Fieberg]

In respect of my new try: after 21 hours Natch showed that the position 
after 11.0 moves is already cooked :-(


>Date: Mon, 22 Nov 2004 22:10:07 +0100

>To: retros at janko.at

>From: Christoph Fieberg <christoph at fieberg.com>

>Subject: Fwd: Re: Fwd: Re: [Retros] Two little SPG-challenges

>

>Hello Michel,

>Euclide says "une solution" but did not finish and Natch does not show any 

>result so far. Could it be that the solution is unique for the stipulation 

>SPG in exactly 10.5 moves!?

>

>Anyway - as the record hunt is opened here is another try for category 3 

>(At-Home-LS-SPG) elevated to 11.5 moves:

>

>Christoph Fieberg - SPG in 11.5 moves (9 + 10) - 22.11.04 - C-

>rnb1kbn1/pppp4/8/8/8/8/1P1P3P/RNB1K1NR b KQq - 0 12

>

>The clou is that bishops on c1 and c8 could not have moved.

>

>Best regards,

>Christoph

>

>

>>Sorry Christoph, but your problem is cooked in 10.0 :

>>4.axb7 cxb2 5.bxa8=N bxa1=N 6.Nb6 Nb3 7.Nxc8 Nxd2 8.Nxe7 Nxf1 9.Kxf1 Kxe7 

>>10.Ke1 Ke8 (of course intention was 10...Nxb1 11.Nxb1)

>>not difficult for me to spot the cook, as I already worked on the subject 

>>: these switchback capturing are the "basic" cooks to avoid when 

>>constructing such games.

>>

>>Best,

>>  Michel

>>Hello,

>>today I composed also an At-Home-Lazy Spectators-SPG with Ceriani-Frolkin 

>>and Pronkin in 10.5 moves. The position after 10.0 moves is C+ verified 

>>after few minutes by Natch. On the final position Natch and Euclide are 

>>still working (I assume they will need not more than a couple of hours) 

>>but as for Michel's SPG here is another chance for human cookers to be faster.

>>Christoph Fieberg - SPG in 10.5 moves - 21.11.04 - C-

>>1n1qkbnr/p2p1ppp/8/8/8/8/2P1PPPP/1NBQK1NR b Kk - 0 11

>>SPG 10.5 (11+11)

>>Best regards,

>>Christoph

>>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.pairlist.net/pipermail/retros/attachments/20041123/3bc5c6a0/attachment.htm>