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We discuss the determination of the CKM angles gamma and alpha using recentdata from non-leptonic B decays together with flavour symmetries. Penguineffects are controlled by means of the CP-averaged branching ratio B_d \to\pi^\pm K^\mp. The information from A_{CP}(B_d \to J/\Psi K_S) (two solutionsfor phi_d), Rb and gamma allow us to determine beta, even in presence of NewPhysics not affecting Delta B=1 amplitudes. In this context we address thequestion of to what extent there is still space for New Physics.Comment: 3 pages, 2 figures, Invited talk given at International Europhysics  Conference on High-Energy Physics (HEP 2003), Aachen, Germany, 17-23 Jul 200

CKM angles from non-leptonic B decays using SU(3) flavour symmetry