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