-PGN text is not selectable on desktop computer (understand why?!)
-Mode expert: game.js, button on top (with online indicator)
+Full detection of repeated positions (including turn)
+In UltimaChess, consider these rules modifications: http://www.inference.org.uk/mackay/ultima/ultima.html
+Reintroduce isAttackedBy in Ultima, and fix it for pawns --> underCheck + stalemate
+--> take into account that an immobilized piece does not give check.
+(chameleons cannot be immobilized)