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