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