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