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