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