We prove that, given a compact Riemann surface Σ\documentclass[12pt]{minimal}
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\begin{document}$$\Sigma $$\end{document} and disjoint finite sets ∅≠E⊂Σ\documentclass[12pt]{minimal}
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\begin{document}$$\varnothing \ne E\subset \Sigma $$\end{document} and Λ⊂Σ\documentclass[12pt]{minimal}
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\begin{document}$$\Lambda \subset \Sigma $$\end{document}, every map Λ→R3\documentclass[12pt]{minimal}
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\begin{document}$$\Lambda \rightarrow \mathbb {R}^3$$\end{document} extends to a complete conformal minimal immersion Σ\E→R3\documentclass[12pt]{minimal}
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\begin{document}$$\Sigma \setminus E\rightarrow \mathbb {R}^3$$\end{document} with finite total curvature. This result opens the door to study optimal hitting problems in the framework of complete minimal surfaces in R3\documentclass[12pt]{minimal}
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\begin{document}$$\mathbb {R}^3$$\end{document} with finite total curvature. To this respect we provide, for each integer r≥1\documentclass[12pt]{minimal}
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\begin{document}$$r\ge 1$$\end{document}, a set A⊂R3\documentclass[12pt]{minimal}
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\begin{document}$$A\subset \mathbb {R}^3$$\end{document} consisting of 12r+3\documentclass[12pt]{minimal}
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\begin{document}$$12r+3$$\end{document} points in an affine plane such that if A is contained in a complete nonflat orientable immersed minimal surface X:M→R3\documentclass[12pt]{minimal}
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\begin{document}$$X:M\rightarrow \mathbb {R}^3$$\end{document}, then the absolute value of the total curvature of X is greater than 4πr\documentclass[12pt]{minimal}
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\begin{document}$$4\pi r$$\end{document}. In order to prove this result we obtain an upper bound for the number of intersections of a complete immersed minimal surface of finite total curvature in R3\documentclass[12pt]{minimal}
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\begin{document}$$\mathbb {R}^3$$\end{document} with a straight line not contained in it, in terms of the total curvature and the Euler characteristic of the surface.
