# Path finding well know problems [closed]

Is there any pathfinding trivial problems like the TSP?
I know that is possible to solve TSP using A*, Best-first and using spanning tree and other things as heuristic but, is there any problem well know by the AI community?

## closed as unclear what you're asking by David Richerby, Rick Decker, Juho, Luke Mathieson, Tom van der ZandenMay 4 '16 at 5:56

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• I don't understand your question. TSP is NP-complete: that's pretty much the opposite of being trivial. – David Richerby May 2 '16 at 21:23
• well, my point was. TSP is a popular problem, i would like to know another pathfinding problem that is as popular as tsp. – PlayMa256 May 2 '16 at 22:18
• Maybe look into some generalizations of TSP (you'll find examples from Wikipedia). – Juho May 3 '16 at 18:50

A different kind of pathfinding problem could be the solving of a sliding puzzle. Which can be implemented using a*. You can pass in a board configuration like:

ed_o
nmac
jibf
hglk


and find a path to an inputted solution:

abcd
efgh
ijkl
mno_


An admissible heuristic for this could be city-block distance.