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