Snorlack the Great is a ruthless space villain and a general pain in the butt.

He’s constantly working to take over the galaxy.

To give himself confidence, he creates a weekly puzzle to prove he’s the most cunning technowizard in the universe. As luck would have it, we intercept a decryption key that unlocks one of his puzzles at each student meeting.

By solving these puzzles, you help keep the galaxy safe. You’ll also get a shout-out at the next meeting and - every now and then - possibly more.

This week’s puzzle: The Machine