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