Pick a name to get your own shuffled board. Use the same name later to come back to it.
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{{ events.length }} {{ events.length === 1 ? 'event' : 'events' }}. New boards are {{ boardSize }}×{{ boardSize }}; add {{ (boardSize + 1) * (boardSize + 1) - events.length }} more for {{ boardSize + 1 }}×{{ boardSize + 1 }}. (the largest size). Extra events add variety.
Anyone can add events. New and reshuffled boards draw from this list; boards already in play keep what they have.