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Subject: Re: Chess Tiger engine. Settings

Author: Wayne Lowrance

Date: 13:23:30 03/17/00

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On March 17, 2000 at 13:33:29, Christophe Theron wrote:

>On March 17, 2000 at 08:14:38, Wayne Lowrance wrote:
>
>>On March 16, 2000 at 16:40:47, Christophe Theron wrote:
>>
>>>On March 16, 2000 at 10:45:54, marcelo alvarez wrote:
>>>
>>>>Yesterday, I have purchased Chess Tiger engine and CP 4.3. I want to know the
>>>>strongest settings for this engine at short time controls (for example G/5) and
>>>>rapid chess (for example G/15 and G/30)versus others programs using auto232.
>>>>Thanks. Marcelo Alvarez.
>>>
>>>
>>>What is the speed of your computer? Everything depends on it...
>>>
>>>If you have a fast computer (200MHz or more), I would simply suggest at short
>>>time controls (G/5 or faster):
>>>1) do NOT give it too much hash tables. 4 Mb will be enough. If you give more
>>>than that, the time spent in clearing or updating the hash tables at each move
>>>will weaken the program
>>>2) close all unnecessary windows (for example the book window) and toolbars.
>>>3) do not move the mouse when the program is thinking. On some computers, this
>>>slows down the program tremendously.
>>>
>>>You can give the program more hash tables when you play at G/15 or slower.
>>>
>>>Then go to the Rebel Home Page (www.rebel.nl) and look for the new, more
>>>effective, engine settings (NSEW=1 and MoreSel=1).
>>>
>>>Also it seems that changing the "contempt factor" can help Tiger a little bit.
>>>In the engine properties page, set the "score for a draw" to the value "-10"
>>>(that means a tenth of a pawn).
>>>
>>>Last thing: make sure that the "analysis brain" is OFF when you play a game.
>>>
>>>
>>>
>>>    Christophe
>>
>>One last input from you Christophe. If entries were entered by hand with game in
>>5 and game in 10 (no increments) what time control setting would you use for
>>those two examples. 400 mhz pent.? Thank you.
>
>
>My own experience with manual entry is limited to the text mode version of Chess
>Tiger, that I have operated for years against various opponents (mainly humans
>at my chess club).
>
>If I am in good shape, I can enter (type) all the moves of a game in 4 minutes
>(assuming a rather long game, you never know). But this takes into account
>physically moving the piece on the board and tapping the clock too.
>
>You'll be using the mouse, and will not have to think about moving the pieces or
>tapping the clock, so I guess you can enter all the moves in 2 minutes?
>
>So for game in 5, set it to game in 7. For game in 10, of course it means game
>in 10. But you have to be fast!
>
>
>
>    Christophe

Christophe Thank you. But I don't understand. If I set tiger to game in 7 on a
5/0 time control game, Tiger is gonna take too long and loose on time, everytime
I think. Can you explain ?

I can work out the time allotment. I think if you can reassure me that Tiger
plays at full strength in any of the allowed time control committments That
would be fine. that probobly was a better question to start with. :) I only ask
cause it seems, and I cannot prove it or describe the conditions as yet but
Tiger  has given me cause for concern when honking around in the infinate time
control period after having set up a pre arranged position. What i have seen is
that on move _n_ Tiger has rated the game as _v_ value points. and after the
move the value of _v_ has on occasion been rather different, always on the worse
side.

The problem is probobly me Christophe. But thought I would throw that in here.




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