Author: Jeremiah Penery
Date: 12:34:59 04/04/00
Go up one level in this thread
On April 04, 2000 at 15:15:27, Bertil Eklund wrote: >On April 04, 2000 at 05:18:53, blass uri wrote: > >>On April 04, 2000 at 03:36:48, Bertil Eklund wrote: >> >>>On April 04, 2000 at 02:37:26, blass uri wrote: >>> >>>>On April 04, 2000 at 02:17:14, Bertil Eklund wrote: >>>> >>>> >>>>>> >>>>>>You see the result: worthless. >>>>>> >>>>>>Suggestions: >>>>>>1) only use all 3-man and 4-man TBs and leave the few 5-man from the >>>>>>EG-Turbo-CDs out. >>>>>>2) get/buy/generate the 5-man with queen(s) because of pawn promotion >>>>>>3) get/buy/generate ALL 5-man so you get REAL and MAXIMUM performance. >>>>>> >>>>>>The EG-Turbo-CDs aren't worth a penny. "...contain the most important >>>>>>endgames..." is marketing rubbish as you can see yourself with such games. >>>>> >>>>>Hi! >>>>> >>>>>Totally nonsense, I have followed houndreds of games with the Turbo-CDs and >>>>>usually it works excellent. The CDs contain almost all important endings and if >>>>>you want to earn say a ½ elo or support Seagate or IBM you can fill them with >>>>>the other mostly obscure endgames. >>>>> >>>>>Bertil >>>> >>>>I think that the main reason that it work excellent is that the opponent usually >>>>resigns before going to endgame like KRQ vs KR >>>> >>>>Uri >>> >>>Hi! >>> >>>I haven't checked the above game but I haven't seen a program that can not win >>>with queen and rook against rook. >>> >>>Bertil >> >>The problem is that Fritz does not go to this endgame because this endgame is >>not in the tablebases and it prefers a to do a draw by avoiding this endgame. >> >>Fritz does not know to stop using the tablebases when they tell it that the >>distance to mate does not decrease and because of this reason it needs the >>KRQ vs KR tablebases. >> >>If you do not give it this tablebases then programs that never resign can get >>better result and I do not like it. >> >>I do not think that customers are interested more in a program only because they >>never resign. >> >>Uri >Hi! > >I have checked the game now and the draw has nothing to do with missing >tablebases, Fritz6 draw the game because some error in the tablebase handling, >as you can see the number of moves to mate goes up and down. >I checked the position with Shredder4 (with exactly the same TBs from >Chessbase), and S4 wins without any problems. The mate numbers go up and down because when Fritz could promote the pawn into a won KRQKR ending it didn't, because it did not have the appropriate TB. Instead, it preferred to stay in the TB, even though the distance to mate was not decreasing. What it was doing was finding the shortest mate it could find (in the TBs it had), and sometimes this was a longer one than on the previous move.
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