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