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