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