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Subject: Re: Serious Fritz/Deep Fritz endgame bug!

Author: Enrique Irazoqui

Date: 10:21:16 01/26/01

Go up one level in this thread


On January 26, 2001 at 11:10:20, Uri Blass wrote:

>On January 26, 2001 at 09:18:01, David Wilke wrote:
>
>>On January 26, 2001 at 01:08:38, Jouni Uski wrote:
>>
>>>On January 26, 2001 at 01:04:18, John Smith wrote:
>>>
>>>>My chess tiger 12, 13, Gambit Tiger, as well as Nimzo 732, Hiarcs 732 and Fritz6
>>>>don't see Bg3.  They all picked Kg2.  My computer setup is Celeron 566@860mhz,
>>>>128mb ram.  The Tiggers have 48mb hash; Chessbase programs 64mb hash.  Time
>>>>control for all programs to find the solution was 60minutes; the tiggers took
>>>>approximately 3 minutes to get Kg2 and the chessbase slightly less.
>>>>
>>>
>>>Hiarcs and Nimzo should solve this with Nalimov 4 pieces! You have installation
>>>problem!
>>>
>>>Jouni
>>
>>I agree..
>>
>>I tried Hiarcs 7.32, Deep Fritz, Junior 5/6, Gandalf, Crafty, Comet, Nimzo
>>7.32/8, Chessmaster 6000/7000 and ALL see Bg3 within seconds using 3 + 4 + KRPKR
>>tablebases...
>
>Hiarcs7.32 or Crafty have no problem to see Bg3 but Deep Fritz cannot see it and
>it simply does not use tablebases inspite of the fact that it has all the 4
>piece tablebases and has also KRP vs KR and some 5 piece tablebases.
>
>This is on a PIII450 256 meg ram windows98.
>
>The programs have 128 mbytes hash and I did not check the number of mbytes for
>cache but it should not be a problem because Hiarcs and Crafty do not have the
>problem.
>
>Uri

Same setup, W98 and 128MB hash, P750:

New position
8/k7/8/2R5/8/4q3/8/4B2K w - - 0 1

Analysis by DEEP FRITZ   :

1.Bc3--
  -+  (-3.22)   Depth: 1/2   00:00:00
1.Bc3-- Qxc5
  -+  (-5.97)   Depth: 1/6   00:00:00
1.Bf2!
  -+  (-5.12)   Depth: 1/6   00:00:00
1.Bf2! Qxf2
  -+  (-4.31)   Depth: 1/6   00:00:00
1.Bb4!
  -+  (-4.25)   Depth: 1/6   00:00:00
1.Rc7+!
  -+  (-4.06)   Depth: 1/6   00:00:00
1.Rc7+! Kb6
  -+  (-1.56)   Depth: 1/6   00:00:00
1.Rc7+--
  -+  (-1.87)   Depth: 2/5   00:00:00
1.Rc7+-- Kb6 2.Rf7 Qxe1+ 3.Kg2
  -+  (-4.31)   Depth: 2/9   00:00:00
1.Ra5+!
  -+  (-2.59)   Depth: 2/9   00:00:00
1.Ra5+! Kb6 2.Ra1
  -+  (-1.69)   Depth: 2/9   00:00:00
1.Ra5+--
  -+  (-2.00)   Depth: 3/10   00:00:00
1.Ra5+-- Kb6 2.Kg2 Qxe1
  -+  (-4.31)   Depth: 3/11   00:00:00  1kN
1.Bb4!
  -+  (-4.28)   Depth: 3/11   00:00:00  1kN
1.Bb4! Qe4+
  -+  (-4.25)   Depth: 3/11   00:00:00  1kN
1.Bb4 Qe4+ 2.Kh2 Qxb4 3.Rc8
  -+  (-4.22)   Depth: 4/13   00:00:00  3kN
1.Kg2!
  -+  (-4.19)   Depth: 4/13   00:00:00  5kN, tb=2
1.Kg2--
  -+  (-#29)   Depth: 5/5   00:00:00  5kN, tb=3
1.Kg2-- Qxe1
  -+  (-#29)   Depth: 5/5   00:00:00  5kN, tb=3
1.Bg3! Qxc5
  =  (0.00)   Depth: 5/5   00:00:00  5kN, tb=21
1.Bg3 Qxc5
  =  (0.00)   Depth: 6/6   00:00:00  5kN, tb=26
1.Bg3 Qxc5
  =  (0.00)   Depth: 7/7   00:00:00  5kN, tb=49
1.Bg3 Qxc5
  =  (0.00)   Depth: 8/8   00:00:00  5kN, tb=72
1.Bg3 Qxc5
  =  (0.00)   Depth: 9/9   00:00:00  5kN, tb=95
1.Bg3 Qxc5
  =  (0.00)   Depth: 10/10   00:00:00  5kN, tb=118
1.Bg3 Qxc5
  =  (0.00)   Depth: 11/11   00:00:00  5kN, tb=141
1.Bg3 Qxc5
  =  (0.00)   Depth: 12/12   00:00:00  5kN, tb=164
1.Bg3 Qxc5
  =  (0.00)   Depth: 13/13   00:00:00  5kN, tb=187
1.Bg3 Qxc5
  =  (0.00)   Depth: 14/14   00:00:00  5kN, tb=210
1.Bg3 Qxc5
  =  (0.00)   Depth: 15/15   00:00:00  5kN, tb=233
1.Bg3 Qxc5
  =  (0.00)   Depth: 16/16   00:00:00  5kN, tb=256
1.Bg3 Qxc5
  =  (0.00)   Depth: 17/17   00:00:00  5kN, tb=279
1.Bg3 Qxc5
  =  (0.00)   Depth: 18/18   00:00:00  5kN, tb=302
1.Bg3 Qxc5
  =  (0.00)   Depth: 19/19   00:00:00  5kN, tb=325
1.Bg3 Qxc5
  =  (0.00)   Depth: 20/20   00:00:00  5kN, tb=348
1.Bg3 Qxc5
  =  (0.00)   Depth: 21/21   00:00:00  5kN, tb=371
1.Bg3 Qxc5
  =  (0.00)   Depth: 22/22   00:00:00  5kN, tb=394
1.Bg3 Qxc5
  =  (0.00)   Depth: 23/23   00:00:00  5kN, tb=417
1.Bg3 Qxc5
  =  (0.00)   Depth: 24/24   00:00:00  5kN, tb=440
1.Bg3 Qxc5
  =  (0.00)   Depth: 25/25   00:00:00  6kN, tb=463
1.Bg3 Qxc5
  =  (0.00)   Depth: 26/26   00:00:00  6kN, tb=486
1.Bg3 Qxc5
  =  (0.00)   Depth: 27/27   00:00:00  6kN, tb=509
1.Bg3 Qxc5
  =  (0.00)   Depth: 28/28   00:00:00  6kN, tb=532
1.Bg3 Qxc5
  =  (0.00)   Depth: 29/29   00:00:00  6kN, tb=555
1.Bg3 Qxc5
  =  (0.00)   Depth: 30/30   00:00:00  6kN, tb=578
1.Bg3 Qxc5
  =  (0.00)   Depth: 31/31   00:00:00  6kN, tb=601
1.Bg3 Qxc5
  =  (0.00)   Depth: 32/32   00:00:00  6kN, tb=624
1.Bg3 Qxc5
  =  (0.00)   Depth: 33/33   00:00:00  6kN, tb=647
1.Bg3 Qxc5
  =  (0.00)   Depth: 34/34   00:00:00  6kN, tb=670
1.Bg3 Qxc5
  =  (0.00)   Depth: 35/35   00:00:00  6kN, tb=693
1.Bg3 Qxc5
  =  (0.00)   Depth: 36/36   00:00:00  6kN, tb=716
1.Bg3 Qxc5
  =  (0.00)   Depth: 37/37   00:00:00  6kN, tb=739
1.Bg3 Qxc5
  =  (0.00)   Depth: 38/38   00:00:00  6kN, tb=762
1.Bg3 Qxc5
  =  (0.00)   Depth: 39/39   00:00:00  6kN, tb=785
1.Bg3 Qxc5
  =  (0.00)   Depth: 40/40   00:00:00  6kN, tb=808
1.Bg3 Qxc5
  =  (0.00)   Depth: 41/41   00:00:00  6kN, tb=831
1.Bg3 Qxc5
  =  (0.00)   Depth: 42/42   00:00:00  6kN, tb=854
1.Bg3 Qxc5
  =  (0.00)   Depth: 43/43   00:00:00  6kN, tb=877
1.Bg3 Qxc5
  =  (0.00)   Depth: 44/44   00:00:00  6kN, tb=900
1.Bg3 Qxc5
  =  (0.00)   Depth: 45/45   00:00:00  6kN, tb=923
1.Bg3 Qxc5
  =  (0.00)   Depth: 46/46   00:00:00  6kN, tb=946
1.Bg3 Qxc5
  =  (0.00)   Depth: 47/47   00:00:00  6kN, tb=969

(Irazoqui, CadaquƩs 26.01.2001)



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