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