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