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