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