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