  We study what will be learnt about the solar neutrino puzzle and solar
neutrino oscillations once the data from the KamLAND reactor neutrino
experiment (soon to become available) are combined with those from the current
solar neutrino experiments. We find that, in agreement with previous estimates,
if the solution to the solar neutrino puzzle falls on the LMA region, KamLAND
should be able to ``pin-point'' the right solution with unprecedented accuracy
after a few years of data taking. Furthermore, the light side ($\theta<\pi/4$)
can be separated from the dark side ($\theta>\pi/4$) at the 95% confidence
level (CL) for most of the LMA region allowed by the current data at the 99%
CL, while the addition of the KamLAND data need not improve our ability to
limit a sterile component in ``solar'' oscillations. If KamLAND does not see an
oscillation signal, the solar data would point to the LOW/VAC regions, while
the SMA region would still lurk at the two sigma CL, meaning we would probably
have to wait for Borexino data in order to finally piece the solar neutrino
puzzle.

High Energy Physics - Phenomenology;High Energy Physics - Experiment