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