Cipher Mosaic — how to play
Use the clues after each attempt to uncover a hidden code. Solve puzzles solo or challenge an opponent in a one-on-one duel.

Players: 1–2. The available modes are selected inside the game.
Objective
Recover the hidden code in as few attempts as possible — the server answers with two numbers only.
Rules and controls
- Pick a difficulty: from 2 to 30 positions and from 2 to 30 values. The leaderboard category is values × positions, e.g. 4×6 gives 24.
- Click the guess fields and check: exact means the right value in the right place, shifted means the right value in the wrong place.
- The hint never says which fields it refers to, and every code element can only be counted once.
- The empty cell (Ø) is a value just like the colours and may repeat as well.
Your first match
Pick a short code and begin with a guess containing different values. The two response numbers count exact positions and correct values in other positions. Change only some fields in the next guess so you can see which assumption improved the result.
What to watch for
The lock does not confirm a field; it only copies your chosen value into the next row. The empty field Ø is also a value and can repeat. Changing every field at once makes the next clue harder to interpret.
Practical tips
- The padlock on a field carries its value into the next guess — it is your notebook, not confirmation from the game.
- Higher in the leaderboard stands the player with fewer attempts, and on a tie the faster time.
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