Pawny - Updated.

[Mincho Georgiev]

Version 0.1.7

(Fixed Bugs)
- Reset Timer on Ponderhit conception was fixed. False by default.
- Fixed Pondering to do infinite analysis until the stop command is received.

(Changes and notes)

- Evaluation:
Added center control weights,
Rook and Knights material imbalance tables,
New (higher) Knight value,
Added code for KBNK simple mate.
- Movegen: New legal evasions generator.
- Ordering: KxB and BxK are now considered as equal captures.
- UCI option ‘Ponder’ added in order to invoke ‘ponderhit’ in GUI’s (like Fritz 11) with no default support of it.
- Better Polling.
- Several code cleanups (like removing the annoying ‘illegal position’ hack from qsearch()).

http://pawny.netii.net/

I expect around 50 ELO increase.

Best Regards!
Mincho.

[Graham Banks]

Thanks Mincho.

[Dr.Wael Deeb]

Thanks Mincho for the new version
Will include it immediately in my qualifying tournaments....
Nazdrave ,
Dr.D

[Mincho Georgiev]

Many thanks, fellows. It definitely plays better, but it's up to you to determine how much exactly, since my hardware resources are way limited.
All the Best!

[swami]

- Evaluation:

Added center control weights,

Rook and Knights material imbalance tables,

New (higher) Knight value,

- Ordering: KxB and BxK are now considered as equal captures.

I expect around 50 ELO increase.

Thanks for the STS-Specific changes with respect to evaluation

Will test it sooner.

[swami]

Pawny 0.1.7

by Mincho Georgiev, Bulgaria..

Strategic Test Suite Conditions:

Core2Quad 32 bits, Q6600, 2 GB RAM, 2.4GHZ
10 seconds per position
900 positions
Engine uses 146 Mb Hash.
Single CPU
Arena GUI


Overall Performance:

• Total Score: 482/900 [...] Average : 53.55% [...] Grade: C [...] Total Rated Time: 77.98/150 minutes [4679 Seconds/9000 Seconds] [...] Percentage Time Used: 51.98%

Subject-wise Scores:

STS (v1.0) - Undermining:
62/100, Grade: B

STS (v2.1) - Open Files and Diagonals:
52/100, Grade: C

STS (v3.0) - Knight Outposts/Centralization/Repositioning:
51/100, Grade: C

STS (v4.1) - Square Vacancy:
56/100, Grade: C+

STS (v5.0) - Bishop vs Knight:
66/100, Grade: B+

STS (v6.0) - Re-Capturing:
58/100, Grade: C+

STS (v7.0) - Offer of Simplification:
57/100, Grade: C+

STS (v8.1) - Advancement of f/g/h Pawns:
38 /100, Grade: ?

STS (v9.0) - Advancement of a/b/c Pawns:
42/100, Grade: E

Best Wishes,
Swami

[swami]

Partial - Credit Scores Calculation:
Using STS Stat 2.5

Pawny 0.1.7

by Mincho Georgiev, Bulgaria.

Overall Performance:

• Total Score: 5786/9000 [...] Average : 64.28% [...] Grade: B [...]

Subject-wise Scores:

STS (v1.0) - Undermining:
703/1000, Grade: A-

STS (v2.1) - Open Files and Diagonals:
576/1000, Grade: C+

STS (v3.0) - Knight Outposts/Centralization/Repositioning:
600/1000, Grade: B

STS (v4.1) - Square Vacancy:
683/1000, Grade: B+

STS (v5.0) - Bishop vs Knight:
734/1000, Grade: A-

STS (v6.0) - Re-Capturing:
751/100, Grade: A

STS (v7.0) - Offer of Simplification:
677/1000, Grade: B+

STS (v8.1) - Advancement of f/g/h Pawns:
514 /1000, Grade: C

STS (v9.0) - Advancement of a/b/c Pawns:
548/1000, Grade: C

Best Wishes,
Swami

[swami]

Improvement (over the previous version) seen in

• Square Vacancy
  Re-Capturing
  Bishop vs Knight
  Offer of Simplification
  Time used
  Overall total out of 900.

[Mincho Georgiev]

Version 0.1.8 is now available.
It's a maintenance release, but still after 2K+ games shows about 10 ELO increase.

(Fixed Bugs)
- Recapture extension – removed entirely. Even after the proper implementation
(without the found bug) of the idea, there was no noticeable benefit, so it was removed.

(Changes and notes)
- Small optimization - Dynamic update of the material count, which relieves the evaluation of collecting it.