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