Tripline

Tripline is a freeware puzzle game played on a sheet of paper. Each of the
30 levels is represented by a grid with different symbols. The aim of the game
is to connect all symbols with a single line. The line cannot be crossed and
groups of 3 identical symbols need to be formed at all time. The line is also
bound by the paper pattern and cannot be drawn diagonally. The pencil is
controlled through the arrow keys. There is an unlimited amount of continues,
and when stuck the level can be restarted.