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