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