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