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