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