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