Author: Bertil Eklund
Date: 14:32:39 04/04/00
Go up one level in this thread
On April 04, 2000 at 15:34:59, Jeremiah Penery wrote: >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. Hi! I have checked this with Junior6 and it wins easily, in example move 95 Junior6 plays Rc7 with aforced win. Same tablebases. Bertil
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