-*** command ‘C’ to add a comment to the SGF tree
-*** command ‘C-u =’ to label a position
-*** SGF tree display, traversal (belongs in sgf.el)
-*** review game history in another buffer
-*** branch subgame tree at arbitrary point
-*** subgame branch matriculation (maturity: child leaves the family)
-*** dribble the SGF tree
-*** "undo undo undoing"; integrate Emacs undo, GTP undo, subgame branching
+*** command to label a position
+*** SGF tree traversal
+***** DONE monkey mind
+***** TODO monkey body
+*** "undo undo undoing"
+***** integrate Emacs undo, GTP undo, subgame branching
+***** (?) use [[file:../undo-tree/][../undo-tree/]]