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