-Finish showProblem() in components/problemSummary.js (send event with infos, and pass message to game component)
-Add new mode in game component: "problem", in which we show description + hidden solution (reveal on click)
+PROBABLY WON'T FIX:
+Embedded rules language not updated when language is set (in Analyse, Game and Problems)
+If new live game starts in background, "new game" notify OK but not first move.
+
+NEW VARIANTS, Non-chess ( won't add draughts: https://lidraughts.org/ )
+Gomoku, Konane
+Fanorona https://fr.wikipedia.org/wiki/Fanorona
+Yoté https://fr.wikipedia.org/wiki/Yot%C3%A9 http://www.zillionsofgames.com/cgi-bin/zilligames/submissions.cgi/92187?do=show;id=960