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