-PGN text is not selectable on desktop computer (understand why?!)
-Mode expert: game.js, button on top (with online indicator)
+Checkered1 & 2 --> avec switch, coup roi sur roi.
+Chakart
+
+Add problems
+https://www.janko.at/Retros/Glossary/Dynamo.htm
+https://www.janko.at/Retros/Problemkiste/N1995-04.htm#3718