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