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