-Finish rules translation in Spanish
-Design: final touch (gain extra space on top, using space on the right)
-Crazyhouse: center reserves, grey if zero available, numbers superimposed
+Chakart :)
+Checkered1 & 2 --> avec switch, coup roi sur roi.
+Ambiguous chess
+https://www.chessvariants.com/mvopponent.dir/ambiguous-chess.html
+[Sittuyin (burmese chess) --> probably not]