New engine _Crab_ based on StockFish

Discussion of anything and everything relating to chess playing software and machines.

Moderators: bob, hgm, Harvey Williamson

Forum rules
This textbox is used to restore diagrams posted with the [d] tag before the upgrade.
smatovic
Posts: 1367
Joined: Wed Mar 10, 2010 9:18 pm
Location: Hamburg, Germany
Full name: Srdja Matovic
Contact:

Re: Human got beaten by Crab

Post by smatovic » Thu Jun 10, 2010 3:59 pm

unbelievable but not impossible...

swami
Posts: 6546
Joined: Thu Mar 09, 2006 3:21 am

Re: New engine _Crab_ based on StockFish

Post by swami » Thu Jun 10, 2010 4:00 pm

svchbe wrote:http://rapidshare.com/files/397493205/crab-x64_PGO.7z

gets around 2700kN/s so it's as fast as the JA build ;)

:roll: no i am debugging this code for hours seems that i messed up my equations some where....
Has Jim made a compiled exe for this engine? Or are you referring to Stockfish?

svchbe

Re: New engine _Crab_ based on StockFish

Post by svchbe » Thu Jun 10, 2010 4:01 pm

compared to stockfish

swami
Posts: 6546
Joined: Thu Mar 09, 2006 3:21 am

Re: New engine _Crab_ based on StockFish

Post by swami » Thu Jun 10, 2010 4:02 pm

svchbe wrote:compared to stockfish
Oh Ok, I hope that Jim makes a compile for this one too! :wink:

Look

Re: New engine _Crab_ based on StockFish

Post by Look » Thu Jun 10, 2010 4:11 pm

You know Sven Berger, maybe some StockFish/Crab code has gotten in your simulation project, watch out! :)

Albert Silver
Posts: 2902
Joined: Wed Mar 08, 2006 8:57 pm
Location: Rio de Janeiro, Brazil

Re: New engine _Crab_ based on StockFish

Post by Albert Silver » Thu Jun 10, 2010 4:24 pm

svchbe wrote:http://rapidshare.com/files/397493205/crab-x64_PGO.7z

gets around 2700kN/s so it's as fast as the JA build ;)

:roll: no i am debugging this code for hours seems that i messed up my equations some where....
Many thanks for the new compile, but I can't seem to get reproducible results comparing both the 32-bit build and the 64-bit one. Times, solutions, you name it, are different. Meaning, they act like different engines.
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."

Look

Re: New engine _Crab_ based on StockFish

Post by Look » Thu Jun 10, 2010 4:36 pm

So Silver, are you suggesting that, Berger has added some of his simulation code to Crab to revenge ? :)

svchbe

Re: New engine _Crab_ based on StockFish

Post by svchbe » Thu Jun 10, 2010 4:39 pm

it's the same story with the stockfish builds...
so it's probably some kind of optimization...

Albert Silver
Posts: 2902
Joined: Wed Mar 08, 2006 8:57 pm
Location: Rio de Janeiro, Brazil

Re: New engine _Crab_ based on StockFish

Post by Albert Silver » Thu Jun 10, 2010 4:40 pm

Look wrote:So Silver, are you suggesting that, Berger has added some of his simulation code to Crab to revenge ? :)
Yes, it is a plot.

Seriously though, I get solutions at different depths, almost randomly, on every position, the plycount varies, etc. I don't know if this is normal, but it makes comparing them, without extensive testing, difficult.
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."

swami
Posts: 6546
Joined: Thu Mar 09, 2006 3:21 am

Re: New engine _Crab_ based on StockFish

Post by swami » Thu Jun 10, 2010 4:42 pm

Albert Silver wrote:
Look wrote:So Silver, are you suggesting that, Berger has added some of his simulation code to Crab to revenge ? :)
Yes, it is a plot.

Seriously though, I get solutions at different depths, almost randomly, on every position, the plycount varies, etc. I don't know if this is normal, but it makes comparing them, without extensive testing, difficult.
Maybe it's nearly an original program and not entirely based on Stockfish.

It could be categorized as engines akin to Protector 1.3.5 which I think was considered original rather than derivative.

Post Reply