Your goal is to find the secret four-color code. The following colors are possible: purple, brown, red, black, green, white.
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: ['purple', 'brown', 'green', 'red']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['brown', 'black', 'red', 'black']. Hint: two colors are in the correct positions.
Guess: ['brown', 'black', 'purple', 'white']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['green', 'white', 'red', 'black']. Hint: two colors are in the correct positions and two colors are in the secret code but in the wrong positions.
A B C D
purple, purple, brown, black white, green, red, black red, black, red, green black, green, black, green