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