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