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