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