Game guide · ZZDXKJ
The Mastermind playbook
Keep the goal in view while choosing a move. Deduce a hidden four-colour code within ten guesses, using exact and misplaced feedback. The computer chooses four positions from six colours; repeated colours are allowed.
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.
A focus for your next round
The board gives you the information needed for the next action. Check guess records your attempt. Exact means correct colour and position; misplaced means correct colour in another position.
The purpose of your moves
Begin with the basic rule, then follow the result of your action. Deduce a hidden four-colour code within ten guesses, using exact and misplaced feedback. Keep the goal in mind before your next move.
How to proceed
- 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.
Making selections and moves
Keep the goal in view while choosing a move. 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 game area remains available above the explanation.
An example before you play
Begin with the basic rule, then follow the result of your action. 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. Try the rule on the board, then read the next instruction.
A common point of confusion
The board gives you the information needed for the next action. Four misplaced matches do not mean four exact positions. Also, repeated colours must not be counted more times than they appear in the secret.
Answers about the rules and controls
For this game, 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.
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 instructions above use these same rules.
For this game, 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 game is played locally in your browser.
When I start, 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. No download or player account is required.
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. No download or player account is required.
How many people can play here?
Solo. This is local browser play, not internet matchmaking. The instructions above use these same rules.
When I start, can the secret repeat a colour?
Yes. Any of the six colours can appear more than once. The game is played locally in your browser.
On this page, what does misplaced mean?
The guessed colour appears in the secret but not at that position, after exact matches have been accounted for. Scores here do not represent cash or prizes.
Are colour numbers part of the rules?
They are labels for accessibility; the number and its colour refer to the same peg choice. The instructions above use these same rules.
Can I see the answer?
The answer is shown when you solve the code or use all ten guesses. Scores here do not represent cash or prizes.
