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