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