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