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