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