The concept of programmable matter (PM) envisions objects composed of tiny, mobile particles capable of self-arrangement, which allows them to change shape, color, and move. We initiate the study of the Black Hole Search problem within the context of PM. The problem involves a dangerous and unnoticeable location, the black hole, that, without a trace, destroys any particle visiting it. In our setting, particles move inside a convex area embedded in a triangular grid, where one vertex is a black hole. The objective is for the particles to identify a restricted set of vertices containing the black hole while ensuring that at least one particle survives. We present an algorithm utilizing three particles capable of assuming just two colors to identify the dangerous region where the black hole resides. Furthermore, we demonstrate that this algorithm is Pareto optimal in terms of number of particles and number of colors required, and asymptotically optimal in terms of number of epochs, where an epoch refers to the minimal time window within which each particle completed an activation cycle at least once.

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