Three Crossings Puzzle

challenge

1

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number of vertices:

7

targets:

line crossings:

3

dots at rim:

6

color

numbers

point size

thickness

solution

You are asked to maneuver the colored dots so that the board contains three line crossings.

Expert level: Vertices are the centers of the colored dots. Create three crossings while six vertices are positioned on the black rim of the board. Dots positioned on the rim turn green.

There are 11 more challenges of a similar type; their target number of crossings and their target number of dots on the rim are displayed at the left border.