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Subject: Re: Crafty 14.9 Additional Bug report

Author: Bernhard Bauer

Date: 06:23:05 04/03/98

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On April 03, 1998 at 07:04:53, ramon  b. de robles wrote:

>Thanks BOB  for the prompt reply
>
>I checked my settings and i found out that the error actually occurred
>when i set crafty  14.9 as primary  engine and Crafty 14.9 playing as
>black in two machine mode ( ie. GNU vs. Crafty 14.9 or Crazy Bishop vs.
>Crafty 14.9)  Sorry.
>
>I am using Windows ver. 4.00.1111 and I am running the Win Board 3.6.2
>using the following option :
>
>a. winboard  -fcp "wcraf149 xboard hash=16M" -cp  (During two machine
>mode, Crafty will play as Black vs. GNU ->>  with Illegal move "a1a1",
>"827", "699", "540" , etc.)
>
>b. winboard  -fcp "wcraf149 xboard hash=16M" -scp "tcb.exe tcbxinit.cui"
>-cp (Same error as a.)
>
>c. winboard  -scp "wcraf149 xboard hash=16M" -fcp "tcb.exe tcbxinit.cui"
>-cp (No error noted)
>
>c. winboard  -fcp "wcraf146 xboard hash=16M" -scp "tcb.exe tcbxinit.cui"
>-cp (No error noted )
>

I found that bug too and mailed it with 4 other problems to Bob Hyatt.
After some waiting he made version 14.13 available - with the same bugs.
Obviously he was working on the parallisation.
Now we have version 15.1 - and the bugs are as before.
Anyway Bob Hyatt told me that he will "look at the problems".

To mention some:
search g8=Q not possible
crafty crashes for a legal position (8 rooks)
crafty gives mate in 8 or mate in 9 for a position wich is a mate in 10
depending on the hash table size.

Anyway crafty is a great program.
It' s strong.
You can optimise it for your hardware.
If you have a multi processor system you may have the strongest
available program.
It's not (only) a DOS program - so you can read CCC
while analysing a position.

Here the output for bench on a PPro (2 procs) overclocked to 233 MHz.

White(1): hash table memory = 12M bytes.
White(1): pawn hash table memory = 2.5M bytes.
White(1): using cpu time
White(1): White(1): search time set to 600.00.
White(1): Running benchmark -- this will take approximately six min
......
Total nodes: 40327623
Nodes per second: 112021
NPS relative to Pentium Pro/200: 1.32
White(1): execution complete.

>
>By the way, how can i make a script file so that it will continue
>playing on two machine(autoplay mode)

Kind regards
B. Bauer



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