Chapter 11.3, Problem 9QE

Program Plan Intro

Heuristic system:

The heuristic system considers all the immediate possible conditions that may lead to a solution for the problem. The system proceeds in the same manner until all the possible conditions are achieved. The heuristic system may require a large amount of work but ultimately it approaches towards a solution. The solution is one of the conditions achieved at the last. The conditions achieved at last may be in large numbers. It guarantees to have a solution among many conditions achieved in the end.

Best fit algorithm:

To eliminate irrelevant moves, the tiles that are out of place should always be adjacent to the hole. The tiles that are already in place should not be moved. The best fit algorithm eliminates the moves having a higher cost, but only for proceeding moves. This algorithm does not consider the overall cost associated with a path.