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