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