How many glass squares are in Richter's Cologne Cathedral window?
11,500. A computer's random number generator, not the artist's hand, scattered its 72 colours.
How close would your guess have been?
In the game we ask it like this: “Richter's Cologne Cathedral window is a mosaic of how many coloured glass squares?”
Type a number — scored exactly the way a round in the game is.
The answer
11,500



