GreKo 2.68

[Vladimir Medvedev]

Geschrieben von: / Posted by: Vladimir Medvedev at 10 February 2004 14:02:26:

GreKo 2.68 released.
New in version (since 2.60):
* Fixed GREAT bug in QSearch pruning (now it does not prune first capture).
* Yet another bugfix in KBPK endgame (wrong field color tests for black bishop).
* New extensions scheme.
* New term in evaluation: Queen near weak King (in addition to usual Q-K tropism).
* Display evaluation either for White or for engine (configurable).
* Piece-field tables changed (now like in Crafty). Two new tables for K in endgame.
* Move generator changed: under check generate only candidates to check evasion.
Significant speedup in tactical positions and test suites.
* New evaluation terms: pinned pieces (currently only pinned to King and Queen).
* New parameter in GreKo.ini: OfferDraw, 0 or 1. (To avoid pop-up messagebox in games vs. Plywood )
* All move sorting (both in QSearch and normal search) use now SEE instead of MVV/LVA.
* Does not prune captures on first ply of QSearch at all.
* Optimized mobility evaluation.
* Added pawn phalangues and blocked on initial field in pawn evaluation.
* Added simple checks on the first ply of QSearch.
* Faster PopCount function (pure arithmetics instead of table lookup).
* Fixed output of fail high/low PV's in epdtest routine.



http://bearlodge.webservis.ru/chess

[Claude Dubois]

Geschrieben von: / Posted by: Claude Dubois at 10 February 2004 14:57:51:
Als Antwort auf: / In reply to: GreKo 2.68 geschrieben von: / posted by: Vladimir Medvedev at 10 February 2004 14:02:26:

GreKo 2.68 released.
New in version (since 2.60):
* Fixed GREAT bug in QSearch pruning (now it does not prune first capture).
* Yet another bugfix in KBPK endgame (wrong field color tests for black bishop).
* New extensions scheme.
* New term in evaluation: Queen near weak King (in addition to usual Q-K tropism).
* Display evaluation either for White or for engine (configurable).
* Piece-field tables changed (now like in Crafty). Two new tables for K in endgame.
* Move generator changed: under check generate only candidates to check evasion.
Significant speedup in tactical positions and test suites.
* New evaluation terms: pinned pieces (currently only pinned to King and Queen).
* New parameter in GreKo.ini: OfferDraw, 0 or 1. (To avoid pop-up messagebox in games vs. Plywood )
* All move sorting (both in QSearch and normal search) use now SEE instead of MVV/LVA.
* Does not prune captures on first ply of QSearch at all.
* Optimized mobility evaluation.
* Added pawn phalangues and blocked on initial field in pawn evaluation.
* Added simple checks on the first ply of QSearch.
* Faster PopCount function (pure arithmetics instead of table lookup).
* Fixed output of fail high/low PV's in epdtest routine.

Hello Vladimir,
Thanks for your upgrade. I'll install for the 3rd round of my tournament
Your link doesn't work by me.
I give another link : Versions of GreKo
Best wishes
Claude



Le Système du Suisse

[Nicolas Normand]

Geschrieben von: / Posted by: Nicolas Normand at 10 February 2004 15:20:07:
Als Antwort auf: / In reply to: GreKo 2.68 geschrieben von: / posted by: Vladimir Medvedev at 10 February 2004 14:02:26:

GreKo 2.68 released.

Thanks i will update greko for the next round of my tourney !
Regards
Nicolas



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