2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/41716A brief overview of flavour-symmetry strategies to extract the angle gamma of the unitarity triangle is given, focusing on B --> pi K modes and the B_d --> pi^+ pi^-, B_s --> K^+ K^- system. We discuss also a variant of the latter approach for the e^+ e^- B-factories, where B_s --> K^+ K^- is replaced by B_d --> pi^{+/-} K^{+/-}.6 pages, LaTeX. Contribution to the proceedings of the workshop on the CKM unitarity triangle, CERN, Geneva, 13-16 February 2002High Energy Physics - Phenomenologytext