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