Algorithm of Alpha beta playing mode or Human playing mode

[Catherine]

Aurora Vs Dam2.2.pdn

Brutus Vs Human

(1.16 KiB) Downloaded 264 times

Hi dear programmers,
I have read a topic on a supercalculator of Chess called Hydra. It can calculate 200 millions of positions in a seconde. and based on "a strong search algorithm". Its crashed a Grand master named Adams. It playing mode is not orthodox"
This last point let me ask a question, because it was very agressive in game. A program which use brutus force like Aurora Borealis against a program using a human opening book and style can they have the same strenght.
Or if you want, a very agressive algorithm search using only brutus force is it or no stronger than a program with human opening book and playing style.
Forgive if my english is not top Thank for advance. this is a game of Aurora Borealis using Brutus Force against Dam2.2 using Human playing style.

[Krzychumag]

Catherine and where from you know, what algorithm of searching applies the program Aurora Borealis.

[Catherine]

Hi Kryztof, the answer is easy!!! If you look carefully the games of Aurora Borealis, you will see that it is very very agressive. it mean that it don't play quickly it's last 5 pieces '46,47,48,49 and 50.
The algorithm using here is based on minimax with brute force priority. If you don't give it more time agains't another program, it will lose because. it's advanced pieces in the opponent area will be taken. i thing that the increasing of is node/sec can perfome it.
if thing that Dragon 2.4.1 used the same kind of algorithm and generally no think on time of opponent. this is another game. look carefully the style of playing of Aurora Borealis.

Aurora Borealis Brutus Force.pdn

(3.25 KiB) Downloaded 246 times

[Krzychumag]

Catherine but you are playing with old version of program. As regards these three games, please write how you played these games.I know that the Aurora Borealis program doesn't have a function Damexchange.

[Catherine]

Hi Kryztof, Iplayed these games manually!!!!!
Perhaps that you know that Aurora Borealis in all it's versions have 2 search engines wich can be choosen in "parameters". The main search engine (3.0) have this kind of so agressive game and powerfull in deep searching, also this engine have a better node/sec performance.
The second search engine have a human playing style like the others programs " TD King, Dam2.2, Windames", but it not so powerfull and have a little node/sec search mode.
By looking the games of Damage, i see clearly that it use "reasonabily" the search mode of the agressive mode of Aurora Borealis.

[Krzychumag]

And you have perhaps a program TD King.