  The hyperon-nucleon interaction with the strangeness $S=-1$ region is
complicated and difficult to investigate because its flavor sector involves all
the irreducible representation except the flavor singlet and has the worst
signal-to-noise ratio among the strangeness regions. In order to overcome such
difficulties the content of this report is twofold: (i) We present an
implementation of extended effective baryon block algorithm. This is a
straightforward extension of the original which was reported in LATTICE 2013.
(ii) We perform single channel analysis for the $\Lambda N$ system at nearly
physical quark masses corresponding to $(m_\pi,m_K)\approx(146,525)$~MeV and
large volume $(La)^4=(96a)^4\approx$ (8.1 fm)$^4$. Scattering phase shifts for
$\Lambda N$ system are presented.
