-Finish rules translation in Spanish
-Design: final touch (gain extra space on top, using space on the right)
-Crazyhouse: center reserves, grey if zero available, numbers superimposed
+Finish https://www.chessvariants.com/mvopponent.dir/dynamo.html
+https://echekk.fr/spip.php?page=article&id_article=599
+And Chakart :)
+Checkered 1 & 2, with switch?