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