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