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