The situation: [people, places,
times that must work out]. Find an
arrangement, say which constraint
causes most of the difficulty, and
what would loosen if I relaxed
it.

Sort Out a Logistics Knot

Finds the one constraint causing most of the pain.

Prompt

Here's the situation: [describe the people, places and times that have to work out]. Find an arrangement that works, tell me which constraint is causing most of the difficulty, and what would loosen if I relaxed it.