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