๐Ÿ” Code Breaker

Crack the secret 4-color code!

5 colors (no duplicates) ยท 10 guesses remaining
SECRET
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10
Right color + position
Right color, wrong position
Not in code
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Frequently Asked Questions about Code Breaker

How do you play Code Breaker?
Guess the secret color code within a limited number of attempts. After each guess, you get feedback: a filled circle means correct color in the correct position, an empty circle means correct color but wrong position. Use logic to narrow down the code.
Is Code Breaker free?
Yes! Code Breaker is completely free to play in your browser. No downloads needed. Choose from 3 difficulty levels with more colors and longer codes.
What is Code Breaker based on?
Code Breaker is based on the classic board game Mastermind, first released in 1970. The concept goes back even further to an older pencil and paper game called Bulls and Cows.
What is the best strategy for Code Breaker?
Start with a guess using all different colors to maximize information. Use the feedback to eliminate impossible combinations. On harder difficulties, keep notes on which colors are confirmed and which positions are locked in.

About Code Breaker

Code Breaker is a logic deduction game inspired by the classic board game Mastermind. A secret code consisting of a sequence of colored pegs is hidden, and you must figure it out through a series of guesses. After each guess, you receive feedback indicating how many pegs are the correct color in the correct position and how many are the correct color but in the wrong position. Using this feedback, you narrow down the possibilities with each attempt. The game challenges your deductive reasoning as you maintain mental models of which combinations remain possible. Experienced players develop systematic strategies that guarantee finding the code within a fixed number of guesses. Starting with diverse first guesses that test multiple colors at once is key to gathering maximum information early. The satisfaction of cracking the code through pure logic is deeply rewarding.

How to Play

  1. Select colors to create your guess for the secret code sequence.
  2. Submit your guess and read the feedback pegs.
  3. Black pegs mean right color in the right position; white pegs mean right color, wrong position.
  4. Use the process of elimination to deduce the exact code within the allowed guesses.