The Government Communications Headquarters (GCHQ) has released its annual Christmas challenge, featuring clues related to Latin dancing, Indian cuisine, and the military. Set by director Anne Keast-Butler, the puzzle invites the public to decode names of UK landmarks while testing their codebreaking and lateral thinking abilities. The 2023 Christmas card includes layers of complexity for those seeking a greater challenge. GCHQ’s Chief Puzzler, known as ‘Colin’, called the tests ‘fiendishly enjoyable’.