British-born choreographer Tim Rushton trained with London’s Royal Ballet but spent virtually his entire dancing career in Germany, Sweden, and Denmark, where he danced for five seasons in the 1980s with the Royal Danish Ballet. It was there that he began his experiments with choreography, and he shifted into the role of independent teacher and choreographer in 1991. Ten years later, he took over the direction of Nyt Dansk Danseteater (or New Danish Dance Theatre), which dropped the “New” designation following its U.S. debut at the Pillow in 2004. The name change was prompted by the 25th anniversary of the company’s founding by Norwegian choreographer Randi Patterson (who was succeeded by American Warren Spears and Danish dancer Anette Abildgaard). Danish Dance Theatre maintains a home in the heart of Copenhagen and is renowned as the country’s leading contemporary ensemble. The title of the work seen here in its U.S. premiere translates as “Chalk,” part of a trilogy addressing the limits and challenges of human interaction.