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