  In the study of two-body charmless B decays as a mean of looking for direct
CP-violation and measuring the CKM mixing parameters in the Standard Model, the
short-distance penguin contribution with its absorptive part generated by charm
quark loop seems capable of producing sufficient $B \to K\pi$ decays rates, as
obtained in factorization and QCD-improved factorization models. However there
are also long-distance charming penguin contributions which also give rise to a
strong phase due to the rescattering $D^{*}D^{*} \to K\pi$ . In this talk, I
would like to discuss \cite{Isola} a recent work on the long-distance charming
penguin as a a different approach to the calculation of the penguin
contributions in $B \to K\pi$ decays from charmed meson intermediate states.
Using chiral effective Lagrangian for light and heavy mesons, corrected for
hard pion and kaon momenta, we show that the charming-penguin contributions
increase significantly the $B \to K\pi$ decays rates from its short-distance
contributions, giving results in better agreement with experimental data.
