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