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