We were in town. The way home took us to Södra station, Stockholm’s South station, with its colourful platform floors. Between each pair of pillars is a field of yellow. Between the fields of yellow the floor is made up of regular curved shapes coloured either red, green or gray.

At some point years ago we made up a game. (Probably one of the kids was tired or cranky or bored and needed entertaining.) Each player has a colour and can only step on fields of that colour. The yellow fields are “home” for everyone. The shapes are just wide enough, and the colours distributed just evenly enough, that it’s doable but slightly challenging – especially but not only for those with short legs. Sometimes, if you don’t plan ahead, you may have to back track and choose another path.

Ingrid and I have outgrown the game and Eric was never a fan but Adrian still enjoys the challenge.