cipherday

Cipherday #60 · August 22, 2026

The answer to Cipherday #60

The full three-cipher chain from August 22, 2026, the public-domain quote it hid, and how each cipher worked. Today’s chain stays sealed until it becomes a past day.

The revealed quote

“To finish first you must first finish.”— traditional racing adage

A reminder that completion comes before any medal.

The cipher chain

  1. Stage 1 · Caesar · Shift of 17

    Ciphertext

    Kyv tliv wfi sfivufd zj tlizfjzkp.

    Decodes to

    The cure for boredom is curiosity.

    Every letter was slid 17 places down the alphabet; sliding it back the same amount restores the line.

  2. Stage 2 · Substitution · Keyword “HARBOR”

    Ciphertext

    H emuso bfvfbob hdhflst ftsojc rhllmt sthlb.

    Decodes to

    A house divided against itself cannot stand.

    A keyword scrambled the alphabet into a fixed cipher alphabet, so each letter always stands for the same partner — letter frequency gives it away.

  3. Stage 3 · Vigenère · Keyword “CANDLE”

    Ciphertext

    Vo slymuh slcwv ybx xyut slcwv fvqtwj.

    Decodes to

    To finish first you must first finish.

    A repeating keyword shifted each letter by a different amount, which is what lets one letter encrypt two ways; the right keyword resolves it.