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