What changes at every step
-
Step 1PAPA -> PUPA
Tile 2 changes A to U; the move is sideways by letter shape. PUPA has 5 legal neighbors, 1 shortest continuation, and 4 moves remaining. Other legal exits from PAPA include PAPS.
-
Step 2PUPA -> PUMA
Tile 3 changes P to M; the move is sideways by letter shape. PUMA has 5 legal neighbors, 1 shortest continuation, and 3 moves remaining. Other legal exits from PUPA include PULA, PUJA, PUPS.
-
Step 3PUMA -> PUMP
Tile 4 changes A to P; the move is closer by letter shape. PUMP has 11 legal neighbors, 1 shortest continuation, and 2 moves remaining. Other legal exits from PUMA include PULA, PUJA, LUMA.
-
Step 4PUMP -> POMP
Tile 2 changes U to O; the move is closer by letter shape. POMP has 6 legal neighbors, 1 shortest continuation, and 1 move remaining. Other legal exits from PUMP include PIMP, JUMP, DUMP, BUMP.
-
Step 5POMP -> POOP
Tile 3 changes M to O; the move is closer by letter shape. POOP has 11 legal neighbors, target reached, and 0 moves remaining. Other legal exits from POMP include COMP, PIMP, ROMP, POME.