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