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