Poople #30: PIES 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 PIES.

Moves

5

Difficulty

Hard

Shortest paths

2

The dictionary has 2 equally short routes; the route below is one of them.

1. Move 1: PIES → PEES — change the 2nd letter from I to E.
2. Move 2: PEES → PEEP — change the 4th letter from S to P.
3. Move 3: PEEP → PREP — change the 2nd letter from E to R.
4. Move 4: PREP → PROP — change the 3rd letter from E to O.
5. Move 5: PROP → POOP — change the 2nd letter from R to O.