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