Question 1: Single choice
mediumAI-checkedSearch & PlanningHill climbing solves the 8-puzzle by always moving to the neighbour with the fewest misplaced tiles (blank not counted). From the start state below, which move does it make first?
| Start | Goal | |||||
|---|---|---|---|---|---|---|
| 6 | _ | 2 | 1 | 2 | 3 | |
| 1 | 8 | 4 | 8 | _ | 4 | |
| 7 | 3 | 5 | 7 | 6 | 5 |