The item on Peter's position element represents an item on a square on which Peter is standing. The element can be treated as a normal item variable. By using it in a term containing items the contents of the square of Peter's position can be tested. If the square is situated outside the sheet, the item of the sheet border will be returned. By using the element as a command the item on Peter's square can be set. In case a preceding command to shift to a specified coordinate has been given Peter will first finish the shift before the item is changed.