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