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