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