A very interesting improvement to my earlier simple definition. Thanks!
"Sacred Chess" variant
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Angel3D, what happened to your old profile pic? (jelly-bean with a mustache).
Your game ideas are really creative, but your profile-pic got switched to a standard pawn?
I was recently inspired by a piece of evert823 (sun god) to create this variant of chess.
Sacred chess would be played on a board of size 10x10 and would contain three new types of pieces, of which one sun god, two obscurantist and four cultists; that will be played together the standard chess pieces, excepting the queen, and with the same standard chess rules (althought some new added rules related with the new pieces).
New pieces and rules:
Sun god:
The piece that replaces the queen. Sun god can move like an budist spirit piece, ie, like an standard queen or like a Chu shogi lion.
That is, the sun god can move "n" steps in any direction (diagonal or ortogonal), or can move or/and capture like a king two times at the same turn (each king-like movement of the sun god can have different directions, this implies that the sun god can be moved like king two times ending up in the initial square, that is a legal movement).
However, use this piece has a price, each time that you move your sun god, a piece of your own colour must be sacrificed (retired from the board), excepting special occasions like when the sun god captures.
Additionally, when a cultist or an obscurantist piece of your colour do a capture, you will be able to move your sun god freely (without sacrifices) at the next turn; the same is applied in case of that the sun god does a double capture.
Cultist:
A kind of omnidirectional pawn.
It can move one step ortogonally, or capture one step diagonally.
Like pawns, it can promote when reaches the initial row of the opponent.
Obscurantist:
A kind of exaggerated omega chess joker piece.
The obscurantist not only will be able to move like the piece previously moved by the opponent, also it can imitate its properties, like promotion (if the opponent promotes one of its pawns, next your obscurantist can move like a pawn and promote although it is at the middle of board), castling and royalty.
This ultimate property (imitate royalty from opponent king passively, ie, without have to move obscurantist) is more like a disadventage that can be used dirty for do a checkmate without king check.
Also, obscurantist is able to castle with others rooks and bishops of the same colour, and to interchange positions with knights.