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