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