Game guide · WANWUYY
Understand the basics of Mastermind
Use the controls beside the game rather than guessing the rules. Deduce a hidden four-colour code within ten guesses, using exact and misplaced feedback. Start a new round when you are ready to try again. The computer chooses four positions from six colours; repeated colours are allowed. Try the rule on the board, then read the next instruction.
Four positions, six colours and ten guesses, with repeated colours allowed. This is an independently coded free colour-code puzzle, not an official branded edition.
One thing to notice as you play
Begin with the basic rule, then follow the result of your action. Check guess records your attempt. Exact means correct colour and position; misplaced means correct colour in another position. Try the rule on the board, then read the next instruction.
Understand the aim
The board gives you the information needed for the next action. Deduce a hidden four-colour code within ten guesses, using exact and misplaced feedback. Keep the goal in mind before your next move.
Step by step
- The computer chooses four positions from six colours; repeated colours are allowed.
- Select a code position and then choose a colour. Fill all four positions.
- Check guess records your attempt. Exact means correct colour and position; misplaced means correct colour in another position.
- Each secret peg can match only one guess peg. Use the feedback to narrow the next guess.
- Find all four exact positions to win. After ten unsuccessful guesses the secret code is revealed.
Your inputs
Begin with the basic rule, then follow the result of your action. Tap one of four positions, then a labelled colour button. Numbers identify colours as well as the swatches. Press Check guess only when all slots are filled. Start a new round when you are ready to try again.
A closer look at one example
For secret 1,1,2,2 and guess 1,2,1,3, feedback is one exact and two misplaced. The extra 3 has no match.
Notice this detail
The example and rules describe the same game you can play above. Four misplaced matches do not mean four exact positions. Also, repeated colours must not be counted more times than they appear in the secret.
Further help with the game
During a round, what is the aim of Mastermind?
Deduce a hidden four-colour code within ten guesses, using exact and misplaced feedback. Keep the current game state in view while applying this rule.
On this page, how do the controls work?
Tap one of four positions, then a labelled colour button. Numbers identify colours as well as the swatches. Press Check guess only when all slots are filled. The controls work with mouse or touch.
On this page, can you show an example?
For secret 1,1,2,2 and guess 1,2,1,3, feedback is one exact and two misplaced. The extra 3 has no match. The worked example offers another way to follow the rule.
Which mistake should I avoid?
Four misplaced matches do not mean four exact positions. Also, repeated colours must not be counted more times than they appear in the secret. The instructions above use these same rules.
What rules and limits are used here?
Four positions, six colours and ten guesses, with repeated colours allowed. This is an independently coded free colour-code puzzle, not an official branded edition. The controls work with mouse or touch.
On this page, how many people can play here?
Solo. This is local browser play, not internet matchmaking. The game is played locally in your browser.
For this game, can the secret repeat a colour?
Yes. Any of the six colours can appear more than once. No download or player account is required.
When I start, what does misplaced mean?
The guessed colour appears in the secret but not at that position, after exact matches have been accounted for. The controls work with mouse or touch.
During a round, are colour numbers part of the rules?
They are labels for accessibility; the number and its colour refer to the same peg choice. Use the labelled controls for your next action.
For this game, can I see the answer?
The answer is shown when you solve the code or use all ten guesses. No download or player account is required.