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