-End of game a bit too verbose: should just say "Black win" ... + show PGN
-Styles must be improved (full width for smartphones, selectable text for PGN...)
+Finish https://www.chessvariants.com/mvopponent.dir/dynamo.html
+https://echekk.fr/spip.php?page=article&id_article=599
+And Chakart :)