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