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