ChessMind 0.82

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metax
Posts: 344
Joined: Wed Sep 23, 2009 3:56 pm
Location: Germany

ChessMind 0.82

Post by metax » Fri Jun 04, 2010 11:25 am

I just released ChessMind 0.82.

Changes to ChessMind 0.80:
- better at tactics, this at the cost of lower search depth
- improvements in evaluation, does not sacrifice pawns without any reason as often as 0.80
- some more UCI options (explained in the readme file)
- improvements in time management
- smaller aspiration windows (also adjustable)

The strength should be around 2100 CCRL now (at least I hope so :D).

Download

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

Re: ChessMind 0.82

Post by swami » Sat Jun 05, 2010 2:56 am

Thanks, Luca. I believe it's about 2150. Decent engine suitable for most National Masters.

0.82 has improved +12 points over the previous version.

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Graham Banks
Posts: 34111
Joined: Sun Feb 26, 2006 9:52 am
Location: Auckland, NZ

Something appears to be wrong

Post by Graham Banks » Thu Jul 15, 2010 6:55 pm

metax wrote:I just released ChessMind 0.82.

Changes to ChessMind 0.80:
- better at tactics, this at the cost of lower search depth
- improvements in evaluation, does not sacrifice pawns without any reason as often as 0.80
- some more UCI options (explained in the readme file)
- improvements in time management
- smaller aspiration windows (also adjustable)

The strength should be around 2100 CCRL now (at least I hope so :D).

Download
Hi Luca,

it appears here that something is not right with this version. It comes straight out of book thinking it's over 2 pawns ahead in every game! :shock:
As a result, it's performing poorly as one would expect in this tournament I'm running:
http://kirill-kryukov.com/chess/discuss ... f=7&t=5255

Cheers,
Graham.
gbanksnz at gmail.com

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Dr.Wael Deeb
Posts: 9702
Joined: Wed Mar 08, 2006 7:44 pm
Location: Amman,Jordan

Re: Something appears to be wrong

Post by Dr.Wael Deeb » Thu Jul 15, 2010 7:22 pm

Graham Banks wrote:
metax wrote:I just released ChessMind 0.82.

Changes to ChessMind 0.80:
- better at tactics, this at the cost of lower search depth
- improvements in evaluation, does not sacrifice pawns without any reason as often as 0.80
- some more UCI options (explained in the readme file)
- improvements in time management
- smaller aspiration windows (also adjustable)

The strength should be around 2100 CCRL now (at least I hope so :D).

Download
Hi Luca,

it appears here that something is not right with this version. It comes straight out of book thinking it's over 2 pawns ahead in every game! :shock:
As a result, it's performing poorly as one would expect in this tournament I'm running:
http://kirill-kryukov.com/chess/discuss ... f=7&t=5255

Cheers,
Graham.
It's good to have a high level of self-confidence Graham :lol:
_No one can hit as hard as life.But it ain’t about how hard you can hit.It’s about how hard you can get hit and keep moving forward.How much you can take and keep moving forward….

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Graham Banks
Posts: 34111
Joined: Sun Feb 26, 2006 9:52 am
Location: Auckland, NZ

Re: Something appears to be wrong

Post by Graham Banks » Thu Jul 15, 2010 7:49 pm

Dr.Wael Deeb wrote:
Graham Banks wrote:
metax wrote:I just released ChessMind 0.82.

Changes to ChessMind 0.80:
- better at tactics, this at the cost of lower search depth
- improvements in evaluation, does not sacrifice pawns without any reason as often as 0.80
- some more UCI options (explained in the readme file)
- improvements in time management
- smaller aspiration windows (also adjustable)

The strength should be around 2100 CCRL now (at least I hope so :D).

Download
Hi Luca,

it appears here that something is not right with this version. It comes straight out of book thinking it's over 2 pawns ahead in every game! :shock:
As a result, it's performing poorly as one would expect in this tournament I'm running:
http://kirill-kryukov.com/chess/discuss ... f=7&t=5255

Cheers,
Graham.
It's good to have a high level of self-confidence Graham :lol:
Indeed, but to be over confident? :wink:
gbanksnz at gmail.com

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Graham Banks
Posts: 34111
Joined: Sun Feb 26, 2006 9:52 am
Location: Auckland, NZ

Can anybody else confirm this?

Post by Graham Banks » Sun Jul 18, 2010 9:15 am

Graham Banks wrote: it appears here that something is not right with this version. It comes straight out of book thinking it's over 2 pawns ahead in every game! :shock:
As a result, it's performing poorly as one would expect in this tournament I'm running:
http://kirill-kryukov.com/chess/discuss ... f=7&t=5255

Cheers,
Graham.
Can somebody else who uses ChessMind confirm this behaviour?
The previous version was okay.
gbanksnz at gmail.com

bhlangonijr
Posts: 482
Joined: Thu Oct 16, 2008 2:23 am
Location: Milky Way
Contact:

Re: Can anybody else confirm this?

Post by bhlangonijr » Sun Jul 18, 2010 11:26 am

Graham Banks wrote:
Graham Banks wrote: it appears here that something is not right with this version. It comes straight out of book thinking it's over 2 pawns ahead in every game! :shock:
As a result, it's performing poorly as one would expect in this tournament I'm running:
http://kirill-kryukov.com/chess/discuss ... f=7&t=5255

Cheers,
Graham.
Can somebody else who uses ChessMind confirm this behaviour?
The previous version was okay.
Hi Graham,

Yes I can confirm that. I am using ChessMind to test Redqueen and it appears that it is losing every game because of that. It seems like a problem in the evaluation function regarding dynamic terms, perhaps mobility or King safety. The engine sometimes evaluates equal positions to 1 or 2 pawns ahead, then when it starts losing material the score drops to something more realistic.

Regards,

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Graham Banks
Posts: 34111
Joined: Sun Feb 26, 2006 9:52 am
Location: Auckland, NZ

Re: Can anybody else confirm this?

Post by Graham Banks » Sun Jul 18, 2010 6:27 pm

bhlangonijr wrote:
Graham Banks wrote:
Graham Banks wrote: it appears here that something is not right with this version. It comes straight out of book thinking it's over 2 pawns ahead in every game! :shock:
As a result, it's performing poorly as one would expect in this tournament I'm running:
http://kirill-kryukov.com/chess/discuss ... f=7&t=5255

Cheers,
Graham.
Can somebody else who uses ChessMind confirm this behaviour?
The previous version was okay.
Hi Graham,

Yes I can confirm that. I am using ChessMind to test Redqueen and it appears that it is losing every game because of that. It seems like a problem in the evaluation function regarding dynamic terms, perhaps mobility or King safety. The engine sometimes evaluates equal positions to 1 or 2 pawns ahead, then when it starts losing material the score drops to something more realistic.

Regards,
Thanks Ben-Hur. :)
gbanksnz at gmail.com

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