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