Is Belka a Rybka?

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Graham Banks
Posts: 44929
Joined: Sun Feb 26, 2006 10:52 am
Location: Auckland, NZ

Re: Is Belka a Rybka?

Post by Graham Banks »

Tony Thomas posted the following in an earlier post.

Regards, Graham.
For clarification, that website is not run by me. So I would warn you not to download anything from that site. Also, they do lot of illegal things at that site, a modified Toga without source code for example. Also, Kingzilla is probably the latest version of Rybka.
gbanksnz at gmail.com
Uri Blass
Posts: 11050
Joined: Thu Mar 09, 2006 12:37 am
Location: Tel-Aviv Israel

Re: Is Belka a Rybka?

Post by Uri Blass »

John Conway wrote:
mjlef wrote:Thanks.

Is there a good set of the parameters that does pretty well. All zeros must be pretty bad!

Mark
I found the following settings on a well known site, the name of which I am not permitted to mention.

SideToMoveBonus 3
PawnFileOpening 35
PawnFileEndgame 5
KnightCentrOpening 150
KnightCentrEndgame 40
KnightRankOpening 50
KnightTrapped 1000
BishopCentrOpening 40
BishopCentrEndgame 50
BishopBackRankOpening 120
RookFileOpening 130
QueenCentrOpening 20
QueenCentrEndgame 120
QueenBackRankOpening 40
KingFileOpening 120
KingCentrEndgame 90
PawnFile -5 0 5 20 20 5 0 -5
KnightLine -8 -2 0 2 2 0 -2 -8
KnightRank -3 -1 0 1 4 6 4 1
BishopLine -2 2 5 7 7 5 2 -2
RookFile -1 0 0 1 1 0 0 -1
QueenLine -3 -1 1 3 3 1 -1 -3
KingLine -5 -2 0 5 5 0 -2 -5
KingFile 5 10 1 -1 -1 1 10 5
CenterPawns 750
KnightMobilityOpening 125
KnightMobilityEndgame 100
BishopMobilityOpening 95
BishopMobilityEndgame 85
RookMobilityOpening 70
RookMobilityEndgame 60
QueenMobilityOpening 8
QueenMobilityEndgame 45
RookHalfOpenOpening 80
RookHalfOpenEndgame 160
RookOpenOpening 1200
RookOpenEndgame 200
RookHalfOpenKingAttack 600
RookChecksOpening 25
Rook7Opening 1000
Rook7Endgame 450
Queen7Endgame 50
KnightKingAttack 1500
BishopKingAttack 450
RookKingAttack 500
QueenKingAttack 650
KingAttackWeight 15 35 50 65 75 85 95 120 320 420 520 720 1300 1700 1920 2820
PassedPawnValue1 0 10 110 900 1100 1500 2100 0
PassedPawnValue2 0 30 90 400 1500 2800 3600 0
PassedPawnValue3 0 10 20 45 260 330 420 0
PassedPawnValue4 0 10 20 45 265 340 450 0
PassedPawnValue5 0 10 20 40 345 440 590 0
PassedPawnValue6 0 10 20 30 390 850 1100 0
PassedPawnValue7 0 10 20 35 550 1150 1950 0
PawnDoubledEndgame 310
PawnIsolatedOpening 130
PawnIsolatedEndgame 280
PawnOpenIsolatedOpening 90
PawnOpenIsolatedEndgame 240
PawnWeakEndgame 300
PawnOpenWeakOpening 200
PawnWeakOpening 250
PawnPassedScoreOpening 0 100 500 1000 1300 1900 0 0
PawnPassedScoreEndgame 0 300 500 700 1300 1600 0 0
They are certainly different than strelka.
I wonder if belka with the right setting behave like strelka or if there is more difference between belka and strelka except changing weights.

Uri