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