Author: Christophe Theron
Date: 11:31:32 05/27/00
Go up one level in this thread
On May 27, 2000 at 08:27:55, Jorge Pichard wrote:
>On May 27, 2000 at 04:45:03, blass uri wrote:
>
>>On May 27, 2000 at 03:49:30, Jeremiah Penery wrote:
>>
>>>On May 27, 2000 at 03:04:59, Didzis Cirulis wrote:
>>>
>>>>Playing two programs on one PC while both of them have
>>>>their pondering ON is a useless activity. Fair match impossible.
>>>
>>>I'm wondering why you say a fair match is impossible. Every time I've played 2
>>>programs at the same time, each one gets exactly 50% of the CPU. This would
>>>seem to make it a perfectly fair match, no?
>>>
>>>Jeremiah
>>
>>I do not see how to do it with ponder on when you have only one processor unless
>>you use the right programs and it means not to test chessmaster against tiger.
>>
>>Uri
>
>Mr Uri why are you saying that I used Ponder on when I posted under Chess Tiger
>Settings Analyse Brain =OFF
>
>Pichard
Jorge, there are 2 different things in Rebel-Tiger.
1) Permanent brain, aka "pondering"
2) Analyse brain
Number 1 is the classical pondering (thinking on opponent's time). As far as I
understand, it was turned ON in your experiment, and if you are using only one
computer this is a bad way to test programs.
Number 2 is the analysis feature. Tiger always thinks, even if it is not his
turn to move. But when it is his opponent's turn, Tiger thinks FOR the opponent.
Tiger plays his move, then begin to think about what is the best move for its
opponent, and displays what it thinks.
When the opponent plays his move, Tiger discards everything from its memory and
start to think about his next move FROM SCRATCH. I think you understand that
this is totally different from permanent brain. Tiger does not use the
opponent's time to think about his move when analysis is turned ON, that is the
important thing to remember.
This feature is designed to let you browse thru a game, and at any time you can
look at the analysis line and the engine shows you a reasonnable move to play in
that position.
So to make things clear, when you play a match with Tiger on one computer, turn
permanent brain OFF and analysis brain OFF.
Turn permanent brain OFF in the opponent as well.
Christophe
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