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