  Recently, a recursion relation has been developed, generating the
four-dimensional integrand of the amplitudes of N=4 supersymmetric Yang-Mills
theory for any number of loops and legs. In this paper, I provide a comparison
of the prediction for the two-loop six-point maximally helicity-violating (MHV)
integrand against the result obtained by use of the leading singularity method.
The comparison is performed numerically for a large number of randomly selected
momenta and in all cases finds agreement between the two results to high
numerical accuracy.
