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