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Subject: Re: A good test position for program.

Author: Peter Fendrich

Date: 14:35:38 12/04/99

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On December 04, 1999 at 17:24:24, Côme wrote:

>On December 04, 1999 at 17:03:54, Peter Fendrich wrote:
>
>>On December 04, 1999 at 16:16:25, Côme wrote:
>>
>>>On December 04, 1999 at 15:43:53, Peter Fendrich wrote:
>>>
>>>>On December 04, 1999 at 15:01:57, Côme wrote:
>>>>
>>>>>Hello,
>>>>>In this position:
>>>>>8/prr2p1p/2R5/PP2pP2/3pRbPk/2pB3P/2P3K1/8 w - - 0 1
>>>>>Does your program play the strong Rxf4! ?
>>>>>Best Regards
>>>>>Alexandre Côme
>>>>yes, allmost instantly but is it for the right reason?
>>>>
>>>> 4        1     17    4379 a6 Rxc6 bxc6 Rc7 Bb5
>>>> 4        1     18    7343 Rxc7  (Rb7c7  b5b6  a7b6  a5b6 Kh4g5  b6c7)
>>>> 4        1     35    9148 Rxc7 Rxc7 b6 Re7 f6 Rd7 Rxf4
>>>> 4        1     36   10744 Rd6  (Kh4g5  b5b6  a7b6  a5b6)
>>>> 4        1     38   14522 Rd6 Rd7 a6 Rc7
>>>> 4        1     39   16951 Rxf4  (Rc7c6  b5c6  e5f4  c6b7)
>>>> 4        1     66   17547 Rxf4 exf4 Rh6 Kg5 Rh5  (Kg5f6)
>>>> 5        1     69   22160 Rxf4 exf4 Rh6 Kg5 Rh5 Kf6 Rxh7
>>>> 6        2     69   52827 Rxf4  ( e5f4 Rc6h6 Kh4g5 Rh6h7 Kg5f6  a5a6)
>>>> 6        2    111   57685 Rxf4 exf4 Rh6 Kg5 Rxh7 Rc5 a6
>>>> 7        2    119   99043 Rxf4 exf4 Rh6 Kg5 Rh5 Kf6 a6 Rb6 Rxh7
>>>> 8        4     97  196024 Rxf4 exf4 Rh6 Kg5 Rxh7 Rc5 a6 Re7 Kh1
>>>> 9        7     92  500606 Rxf4 exf4 Rh6 Kg5 Rxh7 Rc5 a6 Re7 Rh5 Kf6 Rh7
>>>>10       46     87 2757877 Rxf4 exf4 Rh6 Kg5 Rxh7 Rb8 a6 Re8 Kf1 Re3 Be2
>>>>11       91     86 5567097 Rxf4 exf4 Rh6 Kg5 Rh5 Kf6 g5 Kg7 f6 Kh8 Rxh7 Kg8
>>>>                           a6 Rb6 Rg7 Kh8 Kh1
>>>>//Peter
>>>
>>>Hello Peter,
>>>Who is this program?
>>>Try with commercial programs you will may be have some surprises!
>>>Best Regards
>>>Alexandre Côme
>>
>>It's my program Terra.
>>I tried Hiarcs for a minute and it didn't like Rxf4.
>>CM6000 had no problems to find it.
>>Crafty 16.10 found it at iteration 11.
>>From where is the position?
>>//Peter
>
>
>Hello Peter,
>I tried Hiarcs too and after 10 min it don't find Rxf4!
>I have seen this position in a Tournament.
>How Strong is your program Terra?
>Best Regards
>Alexandre Côme

Terra is fairly strong but not as strong as Hiarcs.
In fact I don't have any good data to know how strong it is.
I have only played it against other programs on the same machine and that
doesn't give fair conditions for all programs.
 - Lesss hash
 - No pondering
 - etc.
//Peter





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