Tracery

Tracery is an interesting and exciting logical game that helps you to relax by spreading different traceries on the field.

Gather them in traceries closed around the field’s center by moving slabs to neighbor panes. If the pane is already used by another slab they’ll change over. The field consists of four parts that are mirroring of each other. So moving slabs in any of four parts you’re moving automatically their copies in other three.