This year, your incredible support has once again helped to change thousands of lives during a challenging time.

To say ‘thank you’, we have prepared a special Christmas crossword. Answer the 50 clues to complete the puzzle and spell out the punchline to the seasonal joke: “What did the snowman say to the other snowman?”

You can solve the crossword using the interactive grid below. On a PC, laptop or tablet, click on a clue and it will be highlighted in the grid so you can type the answer. On mobile, tap an empty space in the grid and a clue will appear above. If you’d prefer to use pen and paper, download the printer-friendly PDF version.

We hope you enjoy solving this puzzle over the festive season. If you do, please consider giving a Christmas gift to Sightsavers.