Comments by Namik Zade
o o o o o o o o o o-3rd row,
U R N B Q K B N R U-2nd row,
A(d1)..C(g1)-1st row (I variant)
o o o o o o o o o o-3rd row,
R N U B Q K B U N R-2nd row,
A(c1)... C(h1)-1st row (II variant)
First of them can be rejected from aesthetic reasons (normal castling impossible). The second has lack. Total of protection of pawns - it is minimal(2x4+2x3+6x1=20). Opening setup from Symchess and Sam Trenholmes` variant for Symchess are the optimal because, the total sum of protection of pawns is maximal(=22) and also all pawns are protected.
Thanks for yours comments about arrangement of a Archbishop and a Chancellor on squares c1 and h1. If we shall arrange them on squares d1 and g1 then,some pawns will be in general without protection. For this reason in my second variant and Sam Trenholmes variant A and C are located on squares c1 and h1.For example: o o o o o o o o o o R N U B Q K B U N R A C In this case pawns protection -1 0 2 2 5 5 2 2 0 1(Ad1, Cg1) o o o o o o o o o o R U N B Q K B N U R A C In this case pawns protection -2 0 2 1 6 6 1 2 0 2(Ad1,Cg1) and some pawns are not protected.In comments I have corrected a technical mistake for first variant setup.
Game preset for Symchess .-Central Symmetry: http://play.chessvariants.org/pbm/play.php?game%3DSymchess+with+Central+Symmetry%26settings%3DSymchess+with+Central
Preset for Azchess(Central Symmetry):Central symmetry
This is Preset where is all pawns protected symmetrical:AzchessAS
Addition: Preset for Game Courer-episode 5 from CCChess:
http://play.chessvariants.org/pbm/play.php?game%3DThe+Clash+of+Civilizations+Chess%26settings%3DCCChess+vs+TTC
Addition: Episode 3
http://play.chessvariants.org/pbm/play.php?game%3DThe+Clash+of+Civilizations+Chess%26settings%3DCCChessIV
http://play.chessvariants.org/pbm/play.php?game%3DWWWCHESSBASIC%26settings%3DWWWCHESS
basic version 2: http://play.chessvariants.org/pbm/play.php?game%3DW.W.W.CHESS%26settings%3Dwwwleo
All vs All version: http://play.chessvariants.org/pbm/play.php?game%3DThe+War+of+World%60s+Warriors%26settings%3Dallvsall
http://play.chessvariants.org/pbm/play.php?game%3DSecret+Invisible+Pass+Chess%26settings%3DSymchessUnicornGreat
http://play.chessvariants.org/pbm/play.php?game%3DSymchess%26settings%3DSymsam
Mirror Symmetry: http://play.chessvariants.org/pbm/play.php?game%3DSymchess%26settings%3DSymchessUnicornGreat
-Central Symmetry: http://play.chessvariants.org/pbm/play.php?game%3DSymchess+with+Central+Symmetry%26settings%3DSymchess+with+Central
Symchess with Fils: http://play.chessvariants.org/pbm/play.php?game%3DSymchess+with+Fils%26settings%3DSymfils
Super version Symchess: http://play.chessvariants.org/pbm/play.php?game%3DSymchess+Complex%26settings%3DComplex
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