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