  We present seven separate Chandra observations of the 2001 superoutburst of
WZ Sge. The high-energy outburst was dominated by intense EUV emission lines,
which we interpret as boundary layer emission scattered into our line of sight
in an accretion disc wind. The direct boundary layer emission was hidden from
view, presumably by the accretion disc. The outburst orbital hump (OOH) was
detected in the EUV, but the common superhump was not, indicating a geometric
mechanism in the former and a dissipative mechanism in the latter. X-rays
detected during outburst were not consistent with boundary layer emission and
we argue that there must be a second source of X-rays in dwarf novae in
outburst.
