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