  A $k$-Artal arrangement is a reducible algebraic curve composed of a smooth
cubic and $k$ inflectional tangents. By studying the topological properties of
their subarrangements, we prove that for $k=3,4,5,6$, there exist Zariski pairs
of $k$-Artal arrangements. These Zariki pairs can be distinguished in a
geometric way by the number of collinear triples in the set of singular points
contained in the cubic.
