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