Author: José Antônio Fabiano Mendes
Date: 10:01:37 04/01/02
Go up one level in this thread
On March 29, 2002 at 17:10:29, Oliver Roese wrote: >On March 29, 2002 at 15:08:01, Dan Wulff wrote: > >>Hi Bob! >> >>On March 29, 2002 at 14:44:38, Robert Hyatt wrote: >> >>>On March 29, 2002 at 14:25:36, Dan Wulff wrote: >>> >>>>Hi People! >>>> >>>>[D]8/1k6/p4p2/2p2P2/p1P2P2/2P5/P1K5/8 w - - >>>> >>>>This is CCE position 765. The correct move is Kc1. >>>> >>>>Gandalf does not have a clue. >>>> >>>>Which program solve this, how fast, and at what search depth ?? >>>> >>>>Greetings >>>> >>>>Dan Wulff >>>>(The Gandalf Team) >>> >>> >>>Is this supposed to be winnable? I get +1.0 after 37 plies, for example, >>>and it looks like a draw based on the PV... >> >>Yes, it is. I get a +0.80 score for white almost immediately, then it just keeps >>adding one more aimless king move to the PV for each iteration. I never get to >>ply 37, but after 24 hours on my slow CPU (450 MHz PII) Gandalf reaches >>iteration 32, with no clue..... >> >>I do not have the complete solution, only the first move :-( >> >>Greetings >> >>Dan Wulff >>(The Gandalf Team) > >I have the solution. This is analyzed in "Bauernendspiele" (Pawnendings) from >Yuri Awerbach in the chapter about 'Gegenfelder', german edition >(I dont know the english term for 'Gegenfelder', could someone who knows it >post it here, thank you in advance.) Gegenfelder ==> Corresponding square http://members.aol.com/MuellerLamprecht/inhaltengl.html > >Created with Scid: > >[[Event "?"] >[Site "?"] >[Date "????.??.??"] >[Round "?"] >[White "?"] >[Black "?"] >[Result "*"] >[FEN "8/1k6/p4p2/2p2P2/p1P2P2/2P5/P1K5/8 w - - 0 1"] > >1. Kc1! Kc7 > ( 1... Kb8 2. Kb2 Kb7 3. Ka3 Kc6 4. Kxa4 Kb6 5. Ka3 Kc7 > ( 5... Ka5 6. Kb3 Kb6 7. Kc2 Ka5 8. Kd3 Ka4 9. Ke4 Ka3 10. Kd5 Kxa2 11. >Kxc5 +- ) > 6. Kb2 Kd7 7. Kc2 Kd8 8. Kd3 Kc7 9. Ke4 Kd6 10. a3 +- ) >2. Kd1! Kd7 3. Ke1 Kc7 4. Kf2 Kd8 5. Ke2 Ke8 6. Kd3 Kd7 7. Ke3 Kd6 8. Ke4 a3 9. >Kd3 a5 10. Kc2! a4 11. Kd2! Kc7 12. Kd3 Kc6 13. Ke2 Kd6 14. Kf2 Kd7 15. Ke3 Ke7 >16. Kf3 +- * > >Someone not familar with "Gegenfeldern" (belonging fields) is >not expected to understand this... > >Oliver Roese
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