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