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