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