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Subject: Re: Crafty 17.11 goes undefeated to win in home brew tournament. <huge post>

Author: Chessfun

Date: 22:17:28 08/03/00

Go up one level in this thread


On August 04, 2000 at 01:10:13, blass uri wrote:

>On August 04, 2000 at 00:59:42, Chessfun wrote:
>
>>On August 04, 2000 at 00:22:21, Mark Young wrote:
>>
>>>Fritz 6a will play the correct move but needed more time, but if you set the
>>>tablebase depth to 0 in Fritz 6a it will correct this problem, but at the cost
>>>of search speed because of the amount of tablebase hits to the harddrive. All
>>>examples below.
>>
>>>1.Nc4 Nxc4 2.c7 Ne3 3.a7 Ra3 4.Kb5 Nf5 5.Kb4 Nd6
>>>  -+  (-2.28)   depth: 14/34   00:00:36  29396kN, tb=444
>>>1.Kxb6
>>>  -+  (-2.25)   depth: 14/34   00:00:40  32722kN, tb=562
>>
>>Analysis by Fritz 6:
>>1.Nc4 Nxc4 2.c7 Ne3 3.a7 Ra3 4.Kb5 Nf5 5.Kb4 Nd6
>>  -+  (-2.44)   Depth: 14/32   00:01:42  26500kN, tb=302
>>1.Nc4 Nxc4 2.c7 Ne3 3.a7 Ra3 4.Kb5 Nf5 5.Kb4 Nd6
>>  -+  (-2.44)   Depth: 15/35   00:03:47  58562kN, tb=791
>>1.Kxb6
>>  -+  (-2.41)   Depth: 15/35   00:05:25  80105kN, tb=1148
>>
>>Are your tablebases on your hardrive?.
>>This 40 secs is FAST. On my cel 433 takes 5:25 to see it.
>>But why is yours at depth 14/34 mine at 15/35?
>
>A possible reason may be if he has more tablebases.
>The chessbase CD does not include all the 5 piece tablebases.
>
>Uri

You are probably right, I think it is also likely Mark has them
installed on his hardrive.
Odd, now I change Tablebases to 0 and it sees it at 14/30.
Tablebases at 0 clearly are faster also for me.
Why is default set at 3?.

8/8/PnP3k1/2K5/7p/3rN3/8/8 w - - 0 1

Analysis by Fritz 6:
1.Nc4 Nxc4 2.c7 Ne3 3.a7 Ra3 4.Kb5 Nf5 5.Kb4 Nd6
  -+  (-2.31)   Depth: 13/28   00:01:15  5802kN, tb=1309
1.Nc4 Nxc4 2.c7 Ne3 3.a7 Ra3 4.Kb5 Nf5 5.Kb4 Nd6
  -+  (-2.06)   Depth: 14/30   00:03:13  13234kN, tb=2917
1.Kxb6
  -+  (-2.03)   Depth: 14/30   00:03:35  13811kN, tb=3302

(Bird, Scarb 04.08.2000)

Thanks.





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