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