Critter 0.40 released

rvida · Post by **rvida** » Mon Jul 27, 2009 12:31 am

Hi everyone,

Critter 0.40 is available from SourceForge.

It is still work in progress, main reason of this relase is a fix of a rather serious bug which caused occasional crashes (especially with fast TC and/or pondering).

From the changelog:

Code: Select all

Version 0.40 &#40;2009.07.26&#41;
=========================
* fixed a memory corruption bug
* MultiPV support
* improved passed pawn eval &#40;protected passer, friendly/enemy rook behind passer&#41;
* improved mobility eval &#40;counting pseudo-safe squares&#41;
* more agressive pruning/reductions
* 4 slots per transposition table entry

Regards,
Richard Vida

Graham Banks · Post by **Graham Banks** » Mon Jul 27, 2009 1:23 am

From the changes you've made to the evaluation, it looks as though testers should consider this a completely new version rather than combining results with 0.39a?

Cheers,
Graham.

rvida · Post by **rvida** » Mon Jul 27, 2009 1:31 am

Graham Banks wrote:From the changes you've made to the evaluation, it looks as though testers should consider this a completely new version rather than combining results with 0.39a?

Cheers,
Graham.

Yes, it is somewhat stronger with totally different playing style, thus merging results with previous version is meaningless

Graham Banks · Post by **Graham Banks** » Mon Jul 27, 2009 3:21 am

rvida wrote:
Graham Banks wrote:From the changes you've made to the evaluation, it looks as though testers should consider this a completely new version rather than combining results with 0.39a?

Cheers,
Graham.
Yes, it is somewhat stronger with totally different playing style, thus merging results with previous version is meaningless

Thanks for confirming that Richard.

swami · Post by **swami** » Thu Aug 13, 2009 4:26 pm

Critter Chess 0.40

Strategic Test Suite Conditions:

Arena GUI
10 seconds each move
500 positions
Core2Quad 32 bits, Q6600, 2 GB RAM, 2.4GHZ
Engine uses 133 Mb Hash.

Subject-wise Scores:

STS (v1.0) - Undermining:
70/100, Grade: A

STS (v2.0) - Open Files and Diagonals:
64/100, Grade: B

STS (v3.0) - Knight Outposts/Centralization/Repositioning:
66/100, Grade: B+

STS (v4.0) - Square Vacancy:
68/100, Grade: B+

STS (v5.0) - Bishop vs Knight:
62/100, Grade: B

Overall Performance:

Total Score: 330/500

Overall Average: 66.0 %

Grade: B+

Critter 0.40 released

Critter 0.40 released

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Re: Critter 0.40 released

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