Ralph Bänziger, a young man working for architect Walter Moser, was tasked with designing the estate’s school yard. Bänziger came up with three concrete loops that could be entered and walked around in. Varying in tone from ‘brut’ to washed-out terracotta, the playsculpture blends elegantly into the schoolyard as well as into the pre-existing wall separating the school from the residential area. The original setting also included a shallow pool, but it soon proved too costly to maintain. Bänziger’s congenial loops were an instant hit. But not quite in the way he had intended.