To solve
complex jigsaws you may want to use trays. Trays are separate windows where you
can store unwanted tiles to free some space on the background. To create trays
click Game->Trays.
You will see the window with the list of the existing trays. Since you have no
tray from the beginning, the list is empty. To perform actions with the trays (such
as create, remove, etc.) click right mouse button on the trays list:
Read the
following topics for detailed trays explanation: