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