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