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