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