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