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