PUZZLE #10890: Bombe Enigma Deduction (diff 7)

bombe learn difficulty: 7/7 reasoning author: system unsolved

3 Enigma rotor(s) with known wiring. Crib 'LDNCIB' produces ciphertext 'UZHAHN'. Find the initial rotor positions.

DATA

Rotors	`I, II, III`
Reflector	`B`
Crib	`LDNCIB`
Ciphertext	`UZHAHN`
N Rotors	`3`
Hint	`Brute force rotor positions from AAA to ZZZ. Encrypt the crib at each setting until it matches 'UZHAHN'.`
Answer Format	`three lowercase letters (e.g. 'abc' for rotor positions)`

{
  "type": "bombe",
  "rotors": [
    "I",
    "II",
    "III"
  ],
  "reflector": "B",
  "crib": "LDNCIB",
  "ciphertext": "UZHAHN",
  "n_rotors": 3,
  "hint": "Brute force rotor positions from AAA to ZZZ. Encrypt the crib at each setting until it matches 'UZHAHN'.",
  "answer_format": "three lowercase letters (e.g. 'abc' for rotor positions)"
}

author's note: Pool fill: bombe diff 7