Poople #67: STUD to POOP

Path analysis

This route reaches POOP in 6 moves. Breadth-first search reaches every route with fewer moves first, so POOP cannot be reached in fewer than 6 moves from STUD.

Moves

6

Difficulty

Hard

Shortest paths

1

The dictionary has one shortest route for this puzzle.

1. Move 1: STUD → SPUD — change the 2nd letter from T to P.
2. Move 2: SPUD → SPUR — change the 4th letter from D to R.
3. Move 3: SPUR → SOUR — change the 2nd letter from P to O.
4. Move 4: SOUR → POUR — change the 1st letter from S to P.
5. Move 5: POUR → POOR — change the 3rd letter from U to O.
6. Move 6: POOR → POOP — change the 4th letter from R to P.