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Subject: Re: One pleasant thing about Fritz 7:

Author: Uri Blass

Date: 01:01:54 10/27/01

Go up one level in this thread


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



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