These problems typically involve "constraint
satisfaction" and require the creation of
organizational constructs. This is a fundamental
type of problem in biological research.
A classic example is sudoku (click here to download a nice pdf
Students are often surprised to learn that there
are strategies for attacking sudokus. Some of
the more devilish sudokus can require more than
simple logic. At that point, one can resort
a methodically organized trial-and-error,
similar to how a computer plays chess.
I find the mostsatisfying
"organizational" problems to be those that benefit
from the invention of organizational tools or
constructs in their development. Two classics are
"Who owns the
and "Pair-wise cells".