In the game of Mastermind, your job as the "codebreaker" is to deduce a hidden configuration of 4 colours selected by the computer at random from the six colours at the bottom. A colour can occur any number of times in the code.
Start the game by clicking the "New Game" button. You can then make a guess by selecting from the six colours at the bottom. Once ready, click on the "OK" button and the computer will respond by giving you one marker for each correct colour. A '+' if that colour was also in the right position, otherwise a '-'. (But you will not be informed about which colours were correct.) You can always reselect your guess before you submit by clicking the "Clear" button.
If you cannot guess the code by your sixth guess, the computer will reveal it to you and the game ends.

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