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