A deduction duel in a dark lab. The CPU hides a code of glowing orbs — build guesses, read the black (exact) and white (right colour, wrong slot) pegs, and crack it before your guesses run out.
Score 0Best 0Guess –⏱ 0:00
Pick a tier, then tap Start.
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CODE BREAKER
Choose your clearance level. Higher tiers mean longer codes, more colours and duplicates — but a bigger score base.
Tap a slot, then tap a colour — or tap a slot repeatedly to cycle.
How to play
Build a guess: tap a slot in the glowing active row, then tap a colour orb below — or tap the slot again to cycle colours.
Feedback: each black peg = right colour in the right slot; each white peg = right colour in the wrong slot. Pegs are not in position order.
Score: tier base (Cadet 1000 · Analyst 1500 · Cryptarch 2500) minus 80 per guess used and 2 per second. Crack it fast, in few guesses.
About Code Breaker
Code Breaker is a pure-logic deduction duel: no luck after the code is set, just inference. Every guess partitions the possibilities — masters track not only which colours are in, but which positions are ruled out.
Quick tips
Open with all-distinct colours on Cadet to maximise information.
A white peg with a colour already placed exactly elsewhere often means a duplicate on Analyst and Cryptarch.
Change one thing at a time when you are close — wild reshuffles waste guesses.
Frequently asked questions
Is Code Breaker free?
Yes — free deduction game in your browser, no download or signup.
Can colours repeat?
Not on Cadet. On Analyst and Cryptarch duplicates are allowed — that is what makes them hard.