**Goal:**

- Construct a line segment from A to B.
- Construct a ray from C to D.
- Construct a circle with center E and radius EF.
- Construct a circle with center F and radius EF.
- Construct a (black) point at the intersection of AB and the ray CD.

**Hint:** Hold your mouse on a tool to get a brief instruction how the tool works.

This game is in active development, you can report bugs at github.