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