Issue: embedded rules language not updated when language is set (in Analyse, Game and Problems)
+Also: if new live game starts in background, "new game" notify OK but not first move (not too serious however)
https://www.chessvariants.com/crossover.dir/koopachess.html
--> Can a stunned piece capture? Maybe not. ...recover? After 5 moves? Never?
+ Chakart :)
-https://www.chessvariants.com/diffmove.dir/checkers.html --> move forward (Multhopp)
-in 1974 by Hans Multhopp
https://www.chessvariants.com/diffmove.dir/checkers.html --> "Forward"
+in 1974 by Hans Multhopp
Clorange:
Clockwork Orange Chess (Fergus Duniho,