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