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