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