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