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