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