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