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