Option to replenish the dead wall.
Make sure not to declare a kong when there is nothing left on the living wall to use as replenishment.
Code to replenish the dead wall. With some debugging code.
Needs more testing.
Make bits of the testing bits less blatant and gravitationally possible.
Don’t move tile twice. That was a thinko.
Take out a bit of debug code.
Don’t move the tiles. Take out more testing code.
Fix incomplete description.
I think that is the wrong place.
Don’t call stuff with the last discard (Japanese games).