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