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) = (146, 525) MeV and large volume (La)^4 = (96a)^4 ≈ (8.1 fm)^4. Scattering phase shifts for \Lambda N system are presented.