The pizza cut move is a move where you divide the board into the shape of slices of pizza, and place the objects on the board, by size, like toppings on the slices. You want to remember this image when trying this move.
Use the outer, larger sections for larger ships, and use the smaller inner ones for smaller ships. Always try to keep two lines on the outside and inside of your ships location. Example, Section D3 and F3, meaning your ship would be placed at E3.