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