Boulderhalle Zugzwang on Clmb House. Venue in Neuhauser Straße 1 (Helmut-Ott-Halle), 91275 Auerbach in der Oberpfalz, Germany, Germany. Boulderhalle Zugzwang is a club-run bouldering room in the Helmut-Ott-Halle in Auerbach in der Oberpfalz, operated by Boulderverein Zugzwang e.V. since 2014....