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