Author: Sune Fischer
Date: 13:21:22 03/06/02
Go up one level in this thread
On March 06, 2002 at 15:59:21, Robert Hyatt wrote: >On March 06, 2002 at 13:55:14, Terry McCracken wrote: > >>On March 06, 2002 at 13:09:05, Robert Hyatt wrote: >> >>>On March 06, 2002 at 11:20:17, Terry McCracken wrote: >>> >>>>[D]8/8/8/8/8/6P1/6k1/4KR1R w >>>> >>>> >>>>Mate in 3 >>>> >>>>Terry >>> >>> >>>This is a mate in 4, not a mate in 3, as confirmed by EGTBs... >> >>Dr. Hyatt with all due respect, EGTBs will _not_ help you with this type >>of problem. EGTBs look at it as an endgame where it's assumed the King and both >>Rooks have been moved. Maybe EGTBs can be adjusted for this situation? >> >>Castling is the correct solution, which forces mate in 3. >> >>BTW CM8000 in mate mode or in normal mode will find mate in 3 instantly! >> >>This problem created 145 years ago by Samuel Lloyd when he was not yet 16 years >>of age, is still considered one of the most famous problems in chess history. >> >>http://www.chessbase.com/puzzle/puzzle9/puzz9-6a.htm >> >>The solution can be found at this link. >> >>http://www.chessbase.com/puzzle/puzzle9/games/p9_6.htm >> >>Regards, >> Terry McCracken > > >Sorry, but if you check the +EPD+ posted for the position, there is _no_ >castling possible. Which means this is a simple mate in 4 and the EGTB >results are perfect. The position was: 8/8/8/8/8/6P1/6k1/4KR1R w if there where no castling possible, shouldn't it have been: 8/8/8/8/8/6P1/6k1/4KR1R w - leaving out the "-" probably indicates there might or might not be castle rights. Guess we need to feed the engines all possible combinations... -S.
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