+Game.vue: detecter coups invalides ? --> ou au moins le tour : move.mine = true/false
+
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.
+ https://discord.com/channels/686736099959504907/686736100416553055/841432354676670524
Non-Prise chess (from list http://www.pathguy.com/chess/chessvar.html)
+
+Discord / littleplotkin:
+The idea is that everytime you move a piece, that piece changes in value
+each piece transformation has an equally likely chance of happening
+--> retrouver ref chessvariants, la mentionner, et de-randomizer
+
+Recycle: pions posés sur 1ere rangée !
+Teleport: pawns falling on rank 8?!