The United Kingdom’s (UK) biggest spy agency, Government Communications Headquarters (GCHQ), has released its newest Christmas card — with a set of puzzles specifically designed for young aspiring, secret agents. Traditionally, the intelligence, cyber, and security agency issues a card containing a Christmas-themed brainteaser to national security colleagues and partners worldwide. But this year’s card was created with “fiendish puzzles” exclusively for schoolchildren, the organization said. “GCHQ’s history is full of talented people tackling the country’s most complex challenges. If we’re to help keep the country safe, problem-solving skills and teamwork are absolutely crucial,” the agency’s director, Jeremy Fleming, bared in a statement. Children between the ages of 11 and 18 will be encountering a set of puzzles embedded in a Christmas tree.

Mr. Fleming explained that he is keen on persuading more students to take on science, technology, engineering, and mathematics (STEM) skills, and helping foster the next generation of talent. “I want to show young people that thinking differently is a gift, and it is only with a mix of minds that they can solve seemingly impossible problems, just like we do at GCHQ,” he said. The answers to the Christmas puzzle will also be posted on GCHQ’s Instagram account and official website, the agency said. The security organization is based in Cheltenham, a town in Gloucestershire, England.