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