Hi, I have an idea of a different kind of double King chess with the same
rules to win as in this game. This game requires only the regular 8x8 board
and no fairy pieces.
This game has eight Pawns in the second row (on both sides); but in the
first row, the pieces are arranged as follows:
Rook, Bishop, Queen, King, King, Queen, Bishop, Rook.
Notice that there are two Queens (alongside the two Kings), so I call this
the diarchy chess. There are no Knights at the beginning, but when a Pawn
reaches the other end, it promotes to a Knight only.