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