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