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