SEPTEMBER 23, 2025 · PUZZLE #40
SPIN to POOP.💩
One shortest route in 6 moves.
00
SPIN
START01
SHIN
LETTER 202
CHIN
LETTER 103
CHIP
LETTER 404
CHOP
LETTER 305
COOP
LETTER 206
POOP
GOAL 💩Why this route takes 6 moves
SPIN and POOP differ in 4 letter positions. The shortest accepted-word route needs 2 additional moves; the first and second letters change more than once.
Start by changing the second letter: SPIN → SHIN. Near the goal, COOP is one letter from POOP; the last move changes its first letter.
Every letter change
- SPIN → SHIN: change letter 2 from P to H.
- SHIN → CHIN: change letter 1 from S to C.
- CHIN → CHIP: change letter 4 from N to P.
- CHIP → CHOP: change letter 3 from I to O.
- CHOP → COOP: change letter 2 from H to O.
- COOP → POOP: change letter 1 from C to P.
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