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