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