Will be used for variants with custom non-rectangular board (Hex, at least)
Or, with other board shapes (see greenchess.net for example)
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-New variants:
-Hidden2: Hidden with free initial setup (as in Screen)
-Shinobi Chess
+Would be nice to display some better variants names (Pacosako -> Paco-Ŝako etc),
+but the "formatted" name with uppercase + all lower cases would still be required.
+(For example in variants list, or tournament variant field).