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