Poople #417: PAIR to POOP

Path analysis

This route reaches POOP in 5 moves. Breadth-first search reaches every route with fewer moves first, so POOP cannot be reached in fewer than 5 moves from PAIR.

Moves

5

Difficulty

Hard

Shortest paths

1

The dictionary has one shortest route for this puzzle.

1. Move 1: PAIR → PAIL — change the 4th letter from R to L.
2. Move 2: PAIL → PALL — change the 3rd letter from I to L.
3. Move 3: PALL → POLL — change the 2nd letter from A to O.
4. Move 4: POLL → POOL — change the 3rd letter from L to O.
5. Move 5: POOL → POOP — change the 4th letter from L to P.