Chakart :)

Ambiguous chess
https://www.chessvariants.com/mvopponent.dir/ambiguous-chess.html
Need special highlight square --> similar to enlightened for Dark, in Board.vue
Also in notation, show only dest square for "opponents ambiguous moves".
Similar to Marseille-chess, white first move only 1 subTurn, do not choose a square.
Then black has a free first move, then choose a square, and the process goes on.

Sittuyin (burmese chess)
https://github.com/gbtami/pychess-variants/tree/master/static/images/pieces/sittuyin
https://drive.google.com/open?id=1HIPJLJBU2F6R6vxGziU6j8MHoHu_Kmab