The final part of the Autograph Puzzle Trilogy! This week we take a look at the “Pizza Problem” — what is the maximum number of pieces you can cut a pizza up into making straight line slices? This is something I have always investigated using good old-fashioned pencils and rulers, but Autograph just adds that extra dimension, allowing students to move the cuts around without the need for lots of rubbings out. Can you and your students spot the pattern? Can you explain why?