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For a compact surface $ S $ with a finite set of marked points $ P $, wedefine a 1-system to be a collection of arcs which are pairwise non-homotopicand intersect pairwise at most once. We prove that, up to equivalence, thereare exactly 23 maximal 1-systems on $ (S, P) $ when $ S $ is a torus and $ |P|= 2 $. Along the way, we generalize some of the results of a previous paper tothe context of surfaces with boundary. In particular, we prove that the maximalcardinality of a 1-system on $ (S, P) $ is $ 2 |\chi| (|\chi| + 1) -\frac{v}{2} $, where $ \chi $ is the Euler characteristic of $ (S, P) $ and $ v$ is the number of marked points of $ P $ in the boundary of $ S $.

Systems of arcs on a torus with two punctures