Automatic versionPointsPaths of salesman who doesn't have objective functionOverlaid Paths of salesman who doesn't have objective function
Segments which need not cross each otherSegments which do not cross each otherSegments which need to cross others
Linked segmentsLinked segments with effort not to cross each other
Matchsticks which need not cross each otherMatchsticks which do not cross each other
Linked matchsticksLinked matchsticks with effort not to cross each other
CirclesCircles which do not include othersCircles which do not include and cross others
Rectangles which have edges are parallel to x-axis, y-axis--
Squares which have edges are parallel to x-axis, y-axis--
crossing line when going opposite sidenever crossing line segmentsline segments from points
Click versioncrossing line when going opposite sidenever crossing line segmentsline segments from points