  Ten years later, astronomers are still puzzled by the stellar evolution that
produced SN 1987A --- a blue supergiant. In single star models, the new OPAL
opacities make blue solutions more difficult to achieve, though still possible
for certain choices of convection physics. We also consider rotation, which has
the desirable effect of producing large surface enhancements of nitrogen and
helium, but the undesirable effect of increasing the helium-core mass at the
expense of the envelope. The latter makes blue solutions more difficult. Still,
we seek a model that occurs with high probability in the LMC and for which the
time-scale for making the last transition from red to blue, $\sim$ 20,000
years, has a physical interpretation --- the Kelvin-Helmholtz time of the
helium core. Single star models satisfy both criteria and might yet prove to be
the correct explanation for Sk -69 202, provided new rotational or convection
physics can simultaneously give a blue star and explain the ring structure.
Some speculations on how this might be achieved are presented and some aspects
of binary models briefly discussed.
