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