Tower Cipher
Puzzle / 3–8 min
HOW TO PLAY 1/2
Seals & echoes
Seal = exact digit and place. Echo = digit only. Digits never repeat. Guess 425 vs answer 427 → 2 seals, 0 echoes.
Preparing the game…
About this game
Deduce a unique-digit code from seals (exact place) and echoes (digit only). The daily cipher is the same for everyone.
For fans of Hit & Blow / number deduction
Essential rules
- Weekly Rune offers four digits and eight guesses, with public even/odd clues for each position (zero is even). It changes at Monday midnight JST.
- Your input and feedback save automatically, and the starting puzzle date stays fixed when you resume.
- Choose a mode: daily, practice, or Sage’s Trial.
- Enter a guess with unique digits.
- Seals mark exact matches; echoes mark digit-only matches.
- The notebook tracks candidate reductions and checks your entry against earned clues. Using it carries no score penalty.
- Open the seal before you run out of attempts.
Tips
- Digits never repeat, so each guess cuts many candidates.
- Start with wide spacing to map the board quickly.
- The daily cipher is the same for everyone on that date.
FAQ
Is there a weekly puzzle and can I resume?
Weekly Rune gives public even/odd clues for a four-digit code with eight guesses, changing at Monday midnight JST. Every mode saves your input and feedback in this browser.
Is this like Hit & Blow?
Similar. Seals = exact place; echoes = digit only.
Is today’s cipher shared?
Yes—same day, same seal for everyone.
Can digits repeat?
No. Every digit in a guess must be unique.
How should I open?
Spend early guesses gathering information instead of hunting the answer.
Controls, strategy, and more FAQ live on the how-to page.