B{yields}{pi}K puzzle and new physics

The present B{yields}{pi}K data is studied in the context of the standard model (SM) and with new physics (NP). We confirm that the SM has difficulties explaining the B{yields}{pi}K measurements. By adopting an effective-lagrangian parametrization of NP effects, we are able to rule out several classes of NP. Our model-independent analysis shows that the B{yields}{pi}K data can be accommodated by NP in the electroweak penguin sector.