Poople #437: CASE 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 CASE.

Moves

5

Difficulty

Hard

Shortest paths

6

The dictionary has 6 equally short routes; the route below is one of them.

1. Move 1: CASE → CAME — change the 3rd letter from S to M.
2. Move 2: CAME → COME — change the 2nd letter from A to O.
3. Move 3: COME → POME — change the 1st letter from C to P.
4. Move 4: POME → POMP — change the 4th letter from E to P.
5. Move 5: POMP → POOP — change the 3rd letter from M to O.