First choose any German city by entering it and choosing it in the drop-down box. Then, name the largest German city in each 10 km circle/ring as the rings expand outward from your city of choice. The first circle will include your city of choice as a possible answer if it is the largest city in that area.

When you run out of time or end the quiz, you will see the current ring’s correct answer at right (under ‘Answer Stats’ by your coordinates).

For example, if you choose ‘Bremen’ – you will be shown a circle of radius 10 km centered at Bremen. Naming the largest city in this circle (Bremen in this case) will cause another ‘ring’ of radius 10 km to appear outside that circle. You now need to name the largest Germany city in that ring (but not within any previous circles/rings). If a city is not within the next ring of that distance, the ring will keep expanding by that distance until a city falls within it. So if a city doesn’t fall within 10-20 km, it will expand to be a 10-30 km ring, then 10-40 km and so on until a qualifying city is found within the ring.