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