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