Portable board game

The tiniest portable board game I know about is Iota ($30 used). It fits into a small container the size of an AirPods case, and so can be slipped into any day bag, purse or pocket. It’s perfect for travels. To play you keep arranging its tiny little cards on a table into nesting sets, sort of like dominos, but with more dimensions. The game rewards pattern matching. Even small kids can play, and it is challenging enough for adults. Also no language is needed – another plus for travel. — KK