2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/171991We consider all genus 2 curves over Q given by an equation y^2 = f(x) with f a squarefree polynomial of degree 5 or 6, with integral coefficients of absolute value at most 3. For each of these roughly 200000 isomorphism classes of curves, we decide if there is a rational point on the curve or not, by a combination of techniques. For a small number of curves, our result is conditional on the BSD conjecture or on GRH.12 pagesNumber Theory11D41, 11G30, 11Y50 (Primary) 14G05, 14G25, 14H25, 14H45, 14Q05 (Secondary)Deciding existence of rational points on curves: an experimenttext