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