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