  A self-consistent analysis of K->2pi and K->3pi decays within a unique
framework of chiral dynamics applied to the QCD-corrected weak nonleptonic
quark lagrangian has been performed. The results on K->2pi amplitudes at
O(p^6), including the value for epsilon'/epsilon, are compared with the
experiment to fix phenomenological B-factors for mesonic matrix elements of
nonpenguin and penguin four-quark operators. The dependence of B-factors on
different theoretical uncertainties and experimental errors of various input
parameters is investigated. Finally, we present our estimates at O(p^6) for the
CP-asymmetry of linear slope parameters in the K(+-)->3pi Dalitz plot.
