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