Your goal is to find the secret four-color code. The following colors are possible: purple, green, red, yellow, black, blue.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['yellow', 'black', 'purple', 'red']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['purple', 'green', 'green', 'black']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['red', 'purple', 'black', 'blue']. Hint: two colors are in the correct positions and one color is in the secret code but in the wrong positions.
Guess: ['green', 'purple', 'red', 'blue']. Hint: two colors are in the correct positions and one color is in the secret code but in the wrong positions.
A B C D
black, purple, purple, green green, red, black, blue blue, blue, yellow, black green, red, blue, black