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