Game guide · TIELUSHEBEI
Mastermind: what to know before playing
A careful first move helps you understand the round. Deduce a hidden four-colour code within ten guesses, using exact and misplaced feedback. Try the rule on the board, then read the next instruction. The computer chooses four positions from six colours; repeated colours are allowed. Keep the goal in mind before your next move.
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.
Try a more deliberate round
The example and rules describe the same game you can play above. Check guess records your attempt. Exact means correct colour and position; misplaced means correct colour in another position. Start a new round when you are ready to try again.
The purpose of your moves
Take a moment to check the current turn. Deduce a hidden four-colour code within ten guesses, using exact and misplaced feedback.
Work through the instructions
- 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.
Controls
A careful first move helps you understand the round. 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. Keep the goal in mind before your next move.
An example to follow
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.
Watch out for this
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. The game area remains available above the explanation.
Further help with the game
When I start, what is the aim of Mastermind?
Deduce a hidden four-colour code within ten guesses, using exact and misplaced feedback. Scores here do not represent cash or prizes.
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. A new round resets the current game.
During a round, 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. Use the labelled controls for your next action.
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.
During a round, can the secret repeat a colour?
Yes. Any of the six colours can appear more than once. Scores here do not represent cash or prizes.
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. Use the labelled controls for your next action.
For this game, 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.
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.
