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