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