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