-# New variants
-8-pieces https://www.youtube.com/watch?v=XZ8K02Da7Ps&list=PLRyjH8DPuzTBiym6lA0r84P8N0HnTtZyN&index=6&t=0s
-https://www.chessvariants.com/rules/8-piece-chess
-Eightpieces : non-symmetric
-Sym8pieces : symmetric (960)
+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.