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