BigLion Homepage

[Matthias Gemuh]

Geschrieben von: / Posted by: Matthias Gemuh at 05 January 2004 09:47:13:


http://home.t-online.de/home/matthias.g ... index.html


BigLion + Taktix

[Patrick Buchmann]

Geschrieben von: / Posted by: Patrick Buchmann at 05 January 2004 10:51:48:
Als Antwort auf: / In reply to: BigLion Homepage geschrieben von: / posted by: Matthias Gemuh at 05 January 2004 09:47:13:

http://home.t-online.de/home/matthias.gemuh/Chess/index.html

Hallo Matthias,
Die Download Links gehen nicht.
Alles Gute für den Löwe im neue Jahr,
Patrick


Le Fou numérique

[Matthias Gemuh]

Geschrieben von: / Posted by: Matthias Gemuh at 05 January 2004 11:22:54:
Als Antwort auf: / In reply to: Re: BigLion Homepage geschrieben von: / posted by: Patrick Buchmann at 05 January 2004 10:51:48:

http://home.t-online.de/home/matthias.gemuh/Chess/index.html

Hallo Matthias,
Die Download Links gehen nicht.
Alles Gute für den Löwe im neue Jahr,
Patrick

Thanks, Patrick !
I will fix it.
/Matthias.

[Tord Romstad]

Geschrieben von: / Posted by: Tord Romstad at 05 January 2004 21:09:41:
Als Antwort auf: / In reply to: BigLion Homepage geschrieben von: / posted by: Matthias Gemuh at 05 January 2004 09:47:13:

Happy new year, and welcome back, Matthias!
I was beginning to get worried after this long period of silence.
Tord

[Matthias Gemuh]

Geschrieben von: / Posted by: Matthias Gemuh at 06 January 2004 14:04:45:
Als Antwort auf: / In reply to: Re: BigLion Homepage geschrieben von: / posted by: Tord Romstad at 05 January 2004 21:09:41:

Happy new year, and welcome back, Matthias!
I was beginning to get worried after this long period of silence.
Tord

Hi Tord,
the silence is because BigLion is trying to become small Gothmog.
I now evaluate all nodes (without lazy eval). Needless to say that the engine
is now a 5-ply searcher (Elo 1900). Frustrating .
Best,
Matthias.

[Tord Romstad]

Geschrieben von: / Posted by: Tord Romstad at 06 January 2004 18:21:19:
Als Antwort auf: / In reply to: Re: BigLion Homepage geschrieben von: / posted by: Matthias Gemuh at 06 January 2004 14:04:45:

Happy new year, and welcome back, Matthias!
I was beginning to get worried after this long period of silence.
Tord

Hi Tord,
the silence is because BigLion is trying to become small Gothmog.
I now evaluate all nodes (without lazy eval). Needless to say that the engine
is now a 5-ply searcher (Elo 1900). Frustrating .

I didn't know my engine had such unfortunate effects.
In fact, I have just started to write a detailed explanation of the inner
workings of my engine, which will eventually be found on my home page. It
will be written mostly for begginers, though -- I don't really think
experienced chess programmers like you have much to learn from what I do.
I hope you'll be back with a stronger BigLion than ever before when you have
cleaned things up a bit. How much does the removal of lazy eval slow you
down? If the slowdown is very annoying, perhaps you could find a way to
keep using your lazy eval in the qsearch (where, I assume, the majority
of the nodes of your search tree are found)?
Tord

[Marcus Prewarski]

Geschrieben von: / Posted by: Marcus Prewarski at 06 January 2004 19:14:05:
Als Antwort auf: / In reply to: Re: BigLion Homepage geschrieben von: / posted by: Matthias Gemuh at 06 January 2004 14:04:45:

Happy new year, and welcome back, Matthias!
I was beginning to get worried after this long period of silence.
Tord

Hi Tord,
the silence is because BigLion is trying to become small Gothmog.
I now evaluate all nodes (without lazy eval). Needless to say that the engine
is now a 5-ply searcher (Elo 1900). Frustrating .
Best,
Matthias.

Heh, this is funny to read because I've been doing the same. If I implement all these ideas I might have to change the name of my engine to DrunkenMasterMog
Good luck on your work.
-Marcus

[Matthias Gemuh]

Geschrieben von: / Posted by: Matthias Gemuh at 06 January 2004 21:04:19:
Als Antwort auf: / In reply to: Re: BigLion Homepage geschrieben von: / posted by: Tord Romstad at 06 January 2004 18:21:19:

I now evaluate all nodes (without lazy eval). Needless to say that the engine
is now a 5-ply searcher (Elo 1900). Frustrating .

I hope you'll be back with a stronger BigLion than ever before when you have
cleaned things up a bit. How much does the removal of lazy eval slow you
down? If the slowdown is very annoying, perhaps you could find a way to
keep using your lazy eval in the qsearch (where, I assume, the majority
of the nodes of your search tree are found)?
Tord

I thought about using lazy eval in QSearch(), but I shall only do it
when everything is already running fine.
Dropping lazy eval killed nps by 10%. Evaluating interior nodes consumed
another 25% nps. But BigLion's main problem is the faulty AlphaBeta algorithm.
But I will not give up. The Lion shall one day roar and rock !!
/Matthias.