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