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