If you want to try solving the puzzle on your own, here's how to get started. ___ (1) Download the single image for the puzzle: https://www.gchq.gov.uk/sites/

If you want to try solving the puzzle on your own, here's how to get started. ___ (1) Download the single image for the puzzle: https://www.gchq.gov.uk/sites/default/files/grid-shading-puzzle.jpg https://www.gchq.gov.uk/sites/default/files/grid-shading-puz... (2) Read: In this type of grid-shading puzzle, each square is either black or white. Some of the black squares have already been filled in for you. Each row or column is labelled with a string of numbers. The numbers indicate the length of all consecutive runs of black squares, and are displayed in the order that the runs appear in that line. For example, a label "2 1 6" indicates sets of two, one and six black squares, each of which will have at least one white square separating them. ___ Source: "A Christmas card with a cryptographic twist for charity" (2015) https://www.gchq.gov.uk/news-article/christmas-card-cryptographic-twist-charity https://www.gchq.gov.uk/news-article/christmas-card-cryptogr... ___ SPOILER-1: The above puzzle links to other puzzles, which maybe found here: https://www.gchq.gov.uk/puzz https://www.gchq.gov.uk/puzz SPOILER-2: GCHQ's solutions to all of the puzzles is here: https://www.gchq.gov.uk/directors-christmas-puzzle-answers https://www.gchq.gov.uk/directors-christmas-puzzle-answers