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