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