Since 2000 the so-called „pixel boxes“ have been the trademark of Berlin-based artist Angela Bulloch. With reference to the serial structures of Minimalism, the artist, born in Ontario/Canada in 1966, developed a sculptural module, that in ever new constellation serves as the basis for large-scale installations. Series and systems of the generation and display of colours were likewise at the centre of the two horizontal pixel box pieces: „Chains“ from 2002 which in paying tribute to artist’s artist varied and rhythmically played sequences of his permutations of colours. Cadere’s colour sequences that always involved a „systemic error“ were also a model for an early work that could thus be regarded as a precusor for the by now canonic developments in Bulloch’s oeuvre: „Mastermind Beads“ from 1998.