Is Belka a Rybka?

[mjlef]

where did the pawn=3399 come from?

[Tony Thomas]

where did the pawn=3399 come from?

He probably was talking about a knight or a bishop. Also it is possible that Belka takes the values in 1000's. 1000 for pawn, the one he mentioned for Knight/Bishop, 4500 for Rook, 9000 for queen etc. I dont know if that works for a chess program, but it is my best guess.

[GenoM]

where did the pawn=3399 come from?

Instead of 100 (or 1) weight of a pawn in Belka (sort of measure, you know) is equal to 3399. Please, do not ask me why

[Christopher Conkie]

where did the pawn=3399 come from?

Instead of 100 (or 1) weight of a pawn in Belka (sort of measure, you know) is equal to 3399. Please, do not ask me why

WHY? Do you even know?

[GenoM]

No, I don't know. May be you do? Please, tell.

[Harvey Williamson]

My first analyes with Strelka says "Strelka = Rybka (Clone)"
My new analyses with Belka 1.8.13 says "Belka = NO Rybka (Clone)"

New Version of Belka 1.8.13, here:

http://www.sdchess.ru/download_engines.htm

Hi Eduard,

Vas posted this on the Rybka forum a couple of days ago:

Strelka is obviously a Rybka 1.0 clone.

As I already explained before - the Rybka version which it clones is free anyway, so if somebody wants to use Strelka, be my guest. However, it's really kind of sad for computer chess and for the honest authors who developed weaker engines. And what I'm reading here, that Strelka/Belka is now being 'developed', is pathetic.

Vas

[Werner]

Hallo Eduard,
versuchs mal damit:

SideToMoveBonus 0
PawnFileOpening 10
PawnFileEndgame 15
KnightCentrOpening 50
KnightCentrEndgame 50
KnightRankOpening 50
KnightTrapped 1000
BishopCentrOpening 40
BishopCentrEndgame 50
BishopBackRankOpening 120
RookFileOpening 60
QueenCentrOpening 0
QueenCentrEndgame 40
QueenBackRankOpening 40
KingFileOpening 80
KingCentrEndgame 120
PawnFile -10 -5 0 5 5 0 -5 -10
KnightLine -15 -5 0 5 5 0 -5 -15
KnightRank -10 -5 0 5 10 15 10 5
BishopLine -5 5 10 15 15 10 5 -5
RookFile -10 -5 10 10 10 10 -5 -10
QueenLine -10 -5 0 10 10 0 -5 -10
KingLine -10 -5 0 10 10 0 -5 -10
KingFile 20 30 10 0 0 10 30 20
CenterPawns 2000
KnightMobilityOpening 20
KnightMobilityEndgame 20
BishopMobilityOpening 25
BishopMobilityEndgame 25
RookMobilityOpening 10
RookMobilityEndgame 40
QueenMobilityOpening 5
QueenMobilityEndgame 35
RookHalfOpenOpening 70
RookHalfOpenEndgame 200
RookOpenOpening 500
RookOpenEndgame 300
RookHalfOpenKingAttack 500
RookChecksOpening 25
Rook7Opening 750
Rook7Endgame 300
Queen7Endgame 50
KnightKingAttack 1500
BishopKingAttack 450
RookKingAttack 600
QueenKingAttack 800
KingAttackWeight 20 30 40 50 60 70 80 120 320 420 420 800 1300 1500 1620 1920
PassedPawnValue1 0 10 110 600 800 1300 2200 0
PassedPawnValue2 0 30 110 600 800 1300 1800 0
PassedPawnValue3 0 10 20 40 70 100 130 0
PassedPawnValue4 0 10 20 40 75 130 140 0
PassedPawnValue5 0 10 20 40 75 130 140 0
PassedPawnValue6 0 10 20 30 60 100 150 0
PassedPawnValue7 0 10 20 30 60 100 150 0
PawnDoubledEndgame 320
PawnIsolatedOpening 120
PawnIsolatedEndgame 280
PawnOpenIsolatedOpening 100
PawnOpenIsolatedEndgame 250
PawnWeakEndgame 200
PawnOpenWeakOpening 180
PawnWeakOpening 140
PawnPassedScoreOpening 0 200 300 400 500 600 0 0
PawnPassedScoreEndgame 0 300 500 700 900 1300 0 0

ohne Gewähr - weil ich diese Engine nicht benutze.

[geots]

Harvey, correct me if im wrong. The whole Strelka issue is what it is: it just depends on who you ask right now. But for anyone to create a program or offshoot of one, and name it Belka- seems like just a slap in the face to anyone who seriously cares about computer chess.

Best,

[Graham Banks]

Harvey, correct me if im wrong. The whole Strelka issue is what it is: it just depends on who you ask right now. But for anyone to create a program or offshoot of one, and name it Belka- seems like just a slap in the face to anyone who seriously cares about computer chess.

Best,

My understanding is that the Belkas are just beta versions of a modified Strelka put together by the WildCat author.
I doubt there will be an actual final engine release called Belka. Probably just a new and improved Strelka.

Regards, Graham.

[GenoM]

Graham is right. Belka was not supposed to be seen as a new engine. They are work, beta, developers versions of Strelka. Igor (WildCat) called it such a way just to differ his approach from Osipov's.