Chess game with next to King instead of a Queen, a Twin piece!

Object of the Twin Chess game is to checkmate the opponent's King and/or Twin [depending on variant]!

In 'aSymmetric', 'nonSymmetric' and 'Duel' game variants the same Black and White pieces might not have the same defined movements!

[In a 'Promotion' variants PPawn's promotion immediately wins [ends] a game!]

Remark: Due to unconventional and sometimes non-intuitive piece movements; 'aSymmetric', 'nonSymmetric' and 'Duel' variants are especially challenging and fun to play!

Have fun & Enjoy!