Guess the secret row of colours, read the feedback pegs, and tighten your deductions until you crack the code.
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How to play
The computer hides a secret sequence of coloured pegs. Each turn you submit a full guess and receive feedback: a black peg for every peg that is the right colour in the right spot, and a white peg for every peg that is the right colour in the wrong spot. The feedback pegs are unordered, so a black peg does not tell you which slot it refers to. Use the clues to deduce the code before your guesses run out.
Black peg = correct colour and correct position
White peg = correct colour, wrong position
Feedback is unordered, it counts matches but never reveals which slot
Crack the code within the allowed number of guesses to win
Controls
Desktop: click a palette colour to drop it into the next slot, click a placed peg to remove it, then Submit; number keys place colours, Backspace undoes, Enter submits
Phone & tablet: tap a palette colour to place it, tap a placed peg to clear it, then tap Submit guess
Game modes
Three difficulties, Easy, Medium, and Hard, that change peg count, colour count, and guesses
Daily challenge shared by everyone that day, or unlimited Practice rounds
Toggle whether the secret code may repeat colours
Tips & strategy
Open with guesses that test several distinct colours so you learn which ones are in the code
Track the totals: the sum of black and white pegs tells you how many of your colours belong, regardless of place
Change just one peg between guesses to isolate exactly what that change is worth
About Codebreaker
Codebreaker is a classic code-breaking deduction game of hidden colours and logical feedback. This is an original, free browser version with daily and practice modes and adjustable difficulty, no download or sign-up required.
A free, original browser game on PlayPendium. No download, no install.
