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