-Later:
-Let choice of time control, allow correspondance play, several games at the same time
-==> need to use indexedDB instead of localStorage. Maybe with Dexie https://dexie.org/
-Each user would have a unique identifier stored in the client DB.
-Allow to cancel games (if opponent doesn't connect again)
-Identity would be browser-based: different games on smartphone, home computer, work computer... (why not ?)
-Index might still look the same, and variant page would have another tab "Games"
-==> running, and finished (which can be deleted from local memory)
-(A true analysis mode could be implemented also, to navigate in completed games --> use a button)
-Allow challenging a specific player (by his chosen name)
-But keep the random pairings as main playing way + always playing in ZEN mode,
-except when accepting an individual challenge.
+"FreeBoard", re-using a lot of Board logic, but with SVG (empty) board + SVG (empty) reserves.
+Will be used for variants with custom non-rectangular board (Hex, at least)
+Or, with other board shapes (see greenchess.net for example)
+
+Merge variants 1, 2 (3) into one with sub-variant selection when starting a game (New Game + vs engine + analyse)
+E.g. Checkered 1 & 2 into one, and so on.
+Need additional field in variant code... in a generic way (radiobutton or select or checkbox?)
+
+#New variants:
+Chessplode
+Tablut
+
+https://brainking.com/fr/GameRules?tp=128 Massacre Chess
+
+CWDA : need game options (also useful at least for Monster)
+PizzaKings https://www.chessvariants.com/unequal.dir/pizza-kings.html
+https://en.m.wikipedia.org/wiki/Chess_with_different_armies#Pizza_Kings%5B11%5D_(John_Lawson)
+
+https://www.chessvariants.com/other.dir/nemoroth.html :-)