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