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