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