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