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