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Subject: Re: One pleasant thing about Fritz 7:

Author: Slater Wold

Date: 01:21:20 10/27/01

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On October 27, 2001 at 04:01:54, Uri Blass wrote:

>On October 27, 2001 at 04:00:14, Uri Blass wrote:
>
>>On October 27, 2001 at 03:41:01, Slater Wold wrote:
>>
>>>On October 26, 2001 at 21:38:07, Dann Corbit wrote:
>>>
>>>>On October 26, 2001 at 20:09:25, Slater Wold wrote:
>>>>
>>>>>Fritz 7 - W,S
>>>>>r4r1k/4bppb/2n1p2p/p1n1P3/1p1p1BNP/3P1NP1/qP2QPB1/2RR2K1 w - - 0 1
>>>>>
>>>>>Analysis by Fritz 7:
>>>>>
>>>>>1.Nf6 gxf6
>>>>>  ³  (-0.69)   Depth: 7/28   00:00:00  234kN
>>>>>1.Nf6 gxf6
>>>>>  ³  (-0.40)   Depth: 8/27   00:00:00  364kN
>>>>>1.Nf6 gxf6
>>>>>  ³  (-0.40)   Depth: 8/27   00:00:00  364kN
>>>>>1.Rxc5!
>>>>>  ³  (-0.37)   Depth: 8/27   00:00:00  565kN
>>>>>1.Rxc5! Bxc5 2.Rc1 h5 3.Ngh2 Qd5
>>>>>  ³  (-0.34)   Depth: 8/27   00:00:00  570kN
>>>>>1.Rxc5--
>>>>>  ³  (-0.62)   Depth: 9/29   00:00:00  679kN
>>>>>1.Rxc5--
>>>>>  ³  (-0.62)   Depth: 9/29   00:00:01  797kN
>>>>>1.Nf6!
>>>>>  ³  (-0.59)   Depth: 9/32   00:00:01  1316kN
>>>>>1.Nf6! gxf6 2.exf6 Nxd3 3.Rxd3 Bxd3 4.Qxd3
>>>>>  ³  (-0.53)   Depth: 9/33   00:00:02  1792kN
>>>>>1.Nf6 Bf5
>>>>>  ³  (-0.31)   Depth: 10/35   00:00:08  6148kN
>>>>>1.Rxc5 Bxc5
>>>>>  ³  (-0.28)   Depth: 10/35   00:00:08  6495kN
>>>>>1.Rxc5 Bxc5
>>>>>  ³  (-0.28)   Depth: 10/35   00:00:08  6495kN
>>>>>1.Rxc5 Bxc5
>>>>>  =  (-0.25)   Depth: 11/31   00:00:12  9227kN
>>>>>1.Nf6 Bf5
>>>>>  =  (-0.21)   Depth: 11/36   00:00:20  15729kN
>>>>>1.Nf6 Bf5
>>>>>  =  (-0.21)   Depth: 11/36   00:00:20  15729kN
>>>>>1.Nf6 Rfc8
>>>>>  =  (-0.22)   Depth: 12/39   00:00:49  38273kN
>>>>>1.Rxc5 Bxc5
>>>>>  =  (-0.18)   Depth: 12/39   00:00:54  41915kN
>>>>>1.Rxc5 Bxc5
>>>>>  =  (-0.18)   Depth: 12/39   00:00:54  41915kN
>>>>>1.Rxc5--
>>>>>  ³  (-0.46)   Depth: 13/34   00:01:30  69608kN
>>>>>1.Rxc5-- Bxc5 2.Rc1 a4 3.Rxc5 a3 4.bxa3 Qxe2
>>>>>  ³  (-0.50)   Depth: 13/36   00:01:41  78073kN
>>>>>1.Nf6!
>>>>>  ³  (-0.46)   Depth: 13/37   00:02:04  96584kN
>>>>>1.Nf6!
>>>>>  ³  (-0.31)   Depth: 13/42   00:02:52  134369kN
>>>>>1.Nf6! gxf6 2.exf6 Nxd3 3.Rxd3 Bxd3 4.Qxd3 Bxf6 5.Rxc6 Qxb2
>>>>>  ³  (-0.28)   Depth: 13/44   00:03:41  172071kN
>>>>>1.Nxh6!
>>>>>  =  (-0.25)   Depth: 13/44   00:05:14  245235kN
>>>>>1.Nxh6! Rac8 2.Ng5 Bg6 3.h5 gxh6 4.hxg6 fxg6 5.Ne4
>>>>>  =  (-0.21)   Depth: 13/44   00:05:33  260801kN
>>>>>1.Nxh6!
>>>>>  =  (0.07)   Depth: 14/39   00:09:17  437565kN
>>>>>1.Nxh6! Rac8 2.Ng5 Bg6 3.h5 gxh6 4.hxg6 fxg6 5.Ne4 Rxf4 6.gxf4
>>>>>  =  (0.10)   Depth: 14/39   00:10:00  472604kN
>>>>>1.Nxh6 gxh6 2.Bxh6 Bg6 3.Ng5 Qa4 4.Rxc5 Bxc5 5.Rc1 Qb5 6.Qf3 Be7 7.Bxf8 Rxf8
>>>>>  =  (0.13)   Depth: 15/43   00:19:12  907790kN
>>>>>1.Nxh6 Rac8 2.Rxc5 Bxc5 3.Ng5 Bg6 4.Nhxf7+ Bxf7 5.Bxc6 Bg6
>>>>>  =  (0.00)   Depth: 16/42   00:40:16  1904254kN
>>>>>1.Nf6!
>>>>>  =  (0.04)   Depth: 16/44   00:55:48  2633125kN
>>>>>1.Nf6 Rac8
>>>>>  =  (0.16)   Depth: 17/47   02:28:09  6973119kN
>>>>>1.Nxh6 Rac8
>>>>>  =  (0.19)   Depth: 17/47   03:08:42  8917387kN
>>>>>1.Nxh6 Rac8
>>>>>  =  (0.19)   Depth: 17/47   03:08:42  8917387kN
>>>>>1.Nxh6 Bg6 2.Ne1 Rac8 3.h5 Bh7 4.Ng4 a4 5.h6 Rg8 6.hxg7+ Rxg7 7.Ra1 Qb3
>>>>>  =  (0.16)   Depth: 18/46   06:18:18  17853989kN
>>>>>
>>>>>(W,  26.10.2001)
>>>>>
>>>>>
>>>>>It's not that it solved the position, but that it's using 64 bit integers.
>>>>>
>>>>>:)
>>>>
>>>>It could be doing that.  But it would not have to.  Perhaps Fritz only stores
>>>>thousands of nodes.  Or (alternatively) once it reaches a certain threshold,
>>>>stores only thousands of nodes.  This number:
>>>>17,853,989 kN
>>>>Is far less than 2^32 - 1
>>>
>>>4,294,967,295 is far less than 17,853,989,000.
>>>
>>>2^32 - 1 * 1000 is 4,294,966,296,000.  Which would take over 2000 hours to hit.
>>
>>I doubt if Fritz7 can analayze for more than 100 hours.
>>I had one bad experience when I gave Deep Fritz more than 100 hours and there
>>was a problem.
>>
>>I am not sure if the problem was an engine problem or only a display problem
>>
>>If I rememeber correctly Fritz did not display the time and the analysis but it
>>could play when I told it to play.
>>
>>Maybe you can give Fritz7 to analyze a position for more than 100 hours in order
>>to test it(here better hardware is not going to help you to do it faster)
>>
>>Uri
>
>I read in another post that you do not have Fritz7 so maybe your friend can do
>it
>
>Uri

F7 comes out pretty soon, and I will be getting it.

I am not sure when DF7 will be coming out, but that's might be a more
interesting test.  Perhaps I will do it then.



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