  We study unquenched lattice SU(2) at nonzero chemical potential at strong
coupling and with eight flavours of Kogut-Susskind fermions. Introducing a
diquark source term we analyze the behaviour of different types of fermion
condensates. Using a non standard approach we can obtain results at zero
external source without extrapolations. We find strong evidences for a (high
density) second order phase transition where a diquark condensate appears. The
corresponding critical chemical potential is in good agreement with half the
pion mass.
