DECEMBER 21, 2025 · PUZZLE #129
RIBS to POOP.💩
One shortest route in 5 moves.
00
RIBS
START01
BIBS
LETTER 102
BOBS
LETTER 203
BOOS
LETTER 304
BOOP
LETTER 405
POOP
GOAL 💩Why this route takes 5 moves
RIBS and POOP differ in 4 letter positions. The shortest accepted-word route needs 1 additional move; the first letter changes more than once.
Start by changing the first letter: RIBS → BIBS. Near the goal, BOOP is one letter from POOP; the last move changes its first letter.
Every letter change
- RIBS → BIBS: change letter 1 from R to B.
- BIBS → BOBS: change letter 2 from I to O.
- BOBS → BOOS: change letter 3 from B to O.
- BOOS → BOOP: change letter 4 from S to P.
- BOOP → POOP: change letter 1 from B to P.
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